The Home of Tone is predominantly an online business, and currently without a walk-in shop or showroom. But my office is based in Stourbridge, West Midlands (UK) and I am happy to cater for viewings/collections by appointment if you are local at my office. If this is of interest, please get in touch via the contact form.

I am really proud to work alongside so many great names in the guitar world. Seeing these highly respected brand names sitting in my store makes it all feel incredibly worth while.

You can view all of the currently represented brands via the 'Shop by Brand' tab in the main menu.

They're tasty aren't they? I like chocolate chip, or those rainbow ones from the sub sandwich place. mmmm. But those internet cookies aren't to be worried about and here is how we handle them - 

What are cookies?
A cookie is a small amount of information that’s downloaded to your computer or device when you visit certain websites. We use a number of different cookies on the Shopify website, including strictly necessary, performance, advertising, and social media or content cookies. Cookies make your browsing experience better by allowing the website to remember your actions and preferences (such as login and region selection). This means you don’t have to re-enter this information each time you return to the site or browse from one page to another. Cookies also provide information on how people use the website, for instance whether it’s their first time visiting or if they are a frequent visitor. Read more about cookies (and other similar tracking technologies) and how we use the data collected through these technologies, in our Privacy Policy.

What cookies do we use and why?
Some cookies are necessary to allow you to browse our website, use its features, and access secure areas. The use of these cookies is essential for the website to work. For example, we use user-input cookies for the duration of a session to keep track of a user’s input when filling in forms that span several pages.

We also use functional cookies to remember choices you’ve made or information you’ve provided, such as your username, language, or the region you are in. This allows us to tailor your website experience specifically to your preferences. For example, authentication cookies are functional cookies that are used for the duration of a session (or persistent, if you agree to the “remember me” function) to allow users to authenticate themselves on subsequent visits or to gain access to authorized content across pages. The functional cookies we use include:

• User-centric security cookies to detect authentication abuses for a limited persistent duration, like repeated failed login attempts. These cookies are set for the specific task of increasing the security of the service.
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Shopify is dedicated to user experience and we use many tools to help us improve our website and our commerce platform. To this end, we use reporting and analytics cookies to collect information about how you use our website or our merchants’ storefronts, and how often. These cookies only gather information for statistical purposes and only use pseudonymous cookie identifiers that do not directly identify you. The performance cookies we use include:

• First party analytics cookies - We use these cookies to estimate the number of unique visitors, to improve our websites and our merchants’ websites, and to detect the most searched for words in search engines that lead to a webpage. These cookies are not used to target you with online marketing. We use these cookies to learn how our websites and our merchants’ websites are performing and make relevant improvements to improve your browsing experience.
• Third party analytics cookies - We also use Google Analytics and other third-party analytics providers listed below to help measure how users interact with our website content. These cookies “remember” what our users have done on previous pages and how they’ve interacted with the website. For more information on Google Analytics, visit Google’s information page. For instructions on how opt out of Google Analytics, see below.

Advertising cookies are used on our website to tailor marketing to you and your interests and provide you with a more personalized service in the future. These cookies remember that you visited our website and we may share this information with third-parties, such as advertisers. Although these cookies can track your device’s visits to our website and other sites, they typically cannot personally identify you. Without these cookies, the advertisements that you see may be less relevant and interesting to you. Read more about how companies use cookies to conduct targeted or retargeted advertising here. We do not set advertising cookies through our merchants’ storefronts ourselves, though merchants may choose to do so independently.

Finally, Social and Content cookies are placed by many social media plugins (for example the Facebook ’like’ button), and other tools meant to provide or improve the content on a website (for example services that allow the playing of video files, or that create comments sections). We integrate these modules into our platform to improve the experience of browsing and interacting with our websites. Please note that some of these third party services place cookies that are also used for things like behavioural advertising, analytics, and/or market research.

How long will cookies remain on my computer or mobile device?
The length of time that a cookie remains on your computer or mobile device depends on whether it is a “persistent” or “session” cookie. Session cookies last until you stop browsing and persistent cookies last until they expire or are deleted. Most of the cookies we use are persistent and will expire between 30 minutes and two years from the date they are downloaded to your device. See the section below on how to control cookies for more information on removing them before they expire.

How to control cookies?
You can control and manage cookies in various ways. Please keep in mind that removing or blocking cookies can negatively impact your user experience and parts of our website may no longer be fully accessible.

Most browsers automatically accept cookies, but you can choose whether or not to accept cookies through your browser controls, often found in your browser’s “Tools” or “Preferences” menu. For more information on how to modify your browser settings or how to block, manage or filter cookies can be found in your browser’s help file or through such sites as: www.allaboutcookies.org.

Many of the third party advertising and other tracking services listed above offer you the opportunity to opt out of their tracking systems. You can read more about the information they collect and how to opt out through the privacy policy links listed above.

Shopify webstore data processing

1. Definitions

(a) “Data Protection Legislation” means European Directives 95/46/EC and 2002/58/EC, and any legislation and/or regulation implementing or made pursuant to them, or which amends or replaces any of them (including the General Data Protection Regulation, Regulation (EU) 2016/679);

(b) “Data Processor”, “Data Subject”, “Processor”, “Processing”, “Subprocessor”, and “Supervisory Authority” shall be interpreted in accordance with applicable Data Protection Legislation;

(c) “Personal Data” as used in this Addendum means information relating to an identifiable or identified Data Subject who visits or engages in transactions through your store (a “Customer”), which Shopify Processes as a Data Processor in the course of providing you with the Services. Notwithstanding the foregoing sentence, Personal Data does not include information that Shopify processes in the context of services that it provides directly to a consumer, such as through its consumer-facing applications like Frenzy or its consumer-facing services like Shopify Pay; and

(d) All other capitalized terms in this Addendum shall have the same definition as in the Agreement.

2. Data Protection

2.1. Where a Data Subject is located in the European Economic Area, that Data Subject’s Personal Data will be processed by Shopify’s Irish affiliate, Shopify International Ltd. As part of providing the Services, this Personal Data may be transferred to other regions, including to Canada and the United States. Such transfers will be completed in compliance with relevant Data Protection Legislation.

2.2. When Shopify Processes Personal Data in the course of providing the Services, Shopify will:

• 2.2.1. Process the Personal Data as a Data Processor, only for the purpose of providing the Services in accordance with documented instructions from you (provided that such instructions are commensurate with the functionalities of the Services), and as may subsequently be agreed to by you. If Shopify is required by law to Process the Personal Data for any other purpose, Shopify will provide you with prior notice of this requirement, unless Shopify is prohibited by law from providing such notice;
• 2.2.2. notify you if, in Shopify’s opinion, your instruction for the processing of Personal Data infringes applicable Data Protection Legislation;
• 2.2.3. notify you promptly, to the extent permitted by law, upon receiving an inquiry or complaint from a Data Subject or Supervisory Authority relating to Shopify’s Processing of the Personal Data;
• 2.2.4. implement and maintain appropriate technical and organizational measures to protect the Personal Data against unauthorized or unlawful processing and against accidental loss, destruction, damage, theft, alteration or disclosure. These measures shall be appropriate to the harm which might result from any unauthorized or unlawful processing, accidental loss, destruction, damage or theft of Personal Data and appropriate to the nature of the Personal Data which is to be protected;
• 2.2.5. provide you, upon request, with up-to-date attestations, reports or extracts thereof where available from a source charged with auditing Shopify’s data protection practices (e.g. external auditors, internal audit, data protection auditors), or suitable certifications, to enable you to assess compliance with the terms of this Addendum;
• 2.2.6. notify you promptly upon becoming aware of and confirming any accidental, unauthorized, or unlawful processing of, disclosure of, or access to the Personal Data;
• 2.2.7. ensure that its personnel who access the Personal Data are subject to confidentiality obligations that restrict their ability to disclose the Customer Personal Data; and
• 2.2.8. upon termination of the Agreement, Shopify will promptly initiate its purge process to delete or anonymize the Personal Data. If you request a copy of such Personal Data within 60 days of termination, Shopify will provide you with a copy of such Personal Data.

2.3 In the course of providing the Services,you acknowledge and agree that Shopify may use Subprocessors to Process the Personal Data. Shopify’s use of any specific Subprocessor to process the Personal Data must be in compliance with Data Protection Legislation and must be governed by a contract between Shopify and Subprocessor.

3. Miscellaneous

3.1 In the event of any conflict or inconsistency between the provisions of the Agreement and this Addendum, the provisions of this Addendum shall prevail. For avoidance of doubt and to the extent allowed by applicable law, any and all liability under this Addendum, including limitations thereof, will be governed by the relevant provisions of the Agreement. You acknowledge and agree that Shopify may amend this Addendum from time to time by posting the relevant amended and restated Addendum on Shopify’s website, available at https://www.shopify.com/legal/dpa and such amendments to the Addendum are effective as of the date of posting. Your continued use of the Services after the amended Addendum is posted to Shopify’s website constitutes your agreement to, and acceptance of, the amended Addendum. If you do not agree to any changes to the Addendum, do not continue to use the Service.

3.2 Save as specifically modified and amended in this Addendum, all of the terms, provisions and requirements contained in the Agreement shall remain in full force and effect and govern this Addendum. If any provision of the Addendum is held illegal or unenforceable in a judicial proceeding, such provision shall be severed and shall be inoperative, and the remainder of this Addendum shall remain operative and binding on the parties.

3.3 The terms of this Addendum shall be governed by and interpreted in accordance with the laws of the Province of Ontario and the laws of Canada applicable therein, without regard to principles of conflicts of laws. The parties irrevocably and unconditionally submit to the exclusive jurisdiction of the courts of the Province of Ontario with respect to any dispute or claim arising out of or in connection with this Addendum.

James' Home of Tone shall not be under any liability for damage, loss or expenses resulting from the failure to give advice or information or the giving of
incorrect advice or information (including, without limitation, advice or information given or not given by or through contacting James' Home of Tone) whether or not due to its negligence or that of its employees, agents or subcontractors.

In no event shall any breach of any express or implied terms of the contract between James' Home of Tone and the Customer, or any order accepted by
James' Home of Tone, or any other duty of any kind imposed on James' Home of Tone by law arising out of or in relation to the contract or order, or in respect of any defect in the products, give rise to any liability for punitive damages, loss of revenue, loss of profits or expected future business, damage to
reputation or goodwill, loss of any order or contract or any consequential or indirect loss or damage arising from any cause.

James' Home of Tone's liability (if any) to the Customer for a breach of any express or implied terms of the contract between it and the Customer, or any
order accepted by James' Home of Tone, or any other duty of any kind imposed on James' Home of Tone by law arising out of or in relation to the contract or order, or in respect of any defect in the products, shall be limited to the price paid for the goods.

Nothing in this ‘Liability’ paragraph shall exclude or limit the liability of James' Home of Tone for death or personal injury caused by the negligence of James' Home of Tone or its employees, agents or subcontractors, or for fraud.

If you have further questions, please contact james@homeoftone.co.uk

Orders can be placed here, through the online store. My aim is to make this process as easy as possible, with popular/common payment methods accepted and a simple to use checkout process.

But, if you want to speak on the phone to place an order then I can certainly help with that too. E-mail me with your phone number and a convenient time for me to call, and I'll aim to do that accordingly - james@homeoftone.co.uk

The hard bit huh?! Well hopefully a stress free checkout makes it a little bit easier on the wallet for you!
We accept payment via card (Visa, Visa Debit, Mastercard & AMEX) through Shopify's safe checkout & with PayPal checkout, whether you do or don't have an account with them. Process your card safely via Paypal's very secure checkout or log in to your own PayPal account when prompted and the rest is super easy! Because we use PayPal you can rest assured your details are safe from any bad people out there and we store no paypal payment information.
With either payment method, we also don't keep any details on file at all, to further ensure user safety. There is the option to pay via bank transfer, simply select that as the payment method then on the final stage of your order confirmation, the details will be there ready for you to do yo' thing. You can also opt to collect your order which means paying by cash is fine too! The 'old fashioned' way huh.
I now also have an alternative payment method called Clearpay. For more information about paying using Clearpay, please visit my dedicated Clearpay info page HERE

When planning a purchase, it's always helpful to know the total cart cost so to help make finding that info as easy as possible, I've added a quick shipping calculator at the shopping cart stage. This saves you having to enter all of your address details through the checkout stage, and you can simply select your destination country and postal/ZIP code, and you'll be presented with the range of shipping options available for the value and weight of the goods in your cart.

I'm only human though, and sometimes there can be weird weight/size conflicts making some postage prices higher than what they would be in actuality. If you see something that appears like it's too expensive for the actual postage prices/service used, then do please feel free to drop me a message and I will look into it, double check the actual prices and handle the order manually for me. If you have any specific shipping requirements though, please feel free to drop me an e-mail and we can see what can be done! james@homeoftone.co.uk.

There is free shipping available for anyUK domestic addressbased orders over £100. It will show as an option at the checkout only if you are based in the UK mainland, and the cart value is over £100. I will ship your order with whichever service I deem best suited at the time, generally speaking this will be something like a Tracked 48 Royal Mail economy option, but the service chosen is by my descretion. This free shipping offer is not available to anyone located outside of mainland UK. The offer only applies to those residing and having their orders shipped, within mainland UK.

Important note for international customers - International customers will also need to note that their country will process your import through customs meaning you may be charged additional import duty, VAT and handling charges. These charges aren't of my doing, and won't be covered by James' Home of Tone. These are your responsibility as the importer of the goods to your country. For more information on this, please see the dedicated pageHERE

If you're local to my office and wish to save on shipping and collect the order from me, that's no problem at all! Select 'Pick Up' at the checkout process, and once the order is place, I will pick/prepare the order and let you know when it is ready. We then just need to speak to organise a convenient time as my office is appointment only. I am happy to be flexible in collection times to best suit yourself though so do please just drop me a message to organise this! 

As it's a one man band here, to help manage everything that running and managing a business entails on your own, I only ship four times a week. I continually process orders, but I dispatch in stock items on Monday, Tuesday Wednesday & Friday, with both Royal Mail & DPD.

This applies to in stock items only, please see below for special order items. If an item happens to not be in stock that said it was at the time of checkout, I will get in touch ASAP.

For a Monday, Tuesday, Wednesday & Friday, to be able to dispatch those in stock items on that specific day, I have an order cut off time of 13:00GMT.
For Thursday, Saturday and Sunday, there is no order cut-off time as NO orders will be shipped/dispatched on these dates. Any orders placed on these three non-dispatch days, will be processed and/or dispatched on the closest dispatch date.

There are a range of items we offer that are special order, perhaps a custom spec Jennings Guitar for example!, so with some items being special order or not in stock, we will keep you updated with delivery estimates through every step of the order.As a rule, most conventional items (not custom build guitars for example) we list are in stock at our distribution warehouses so aim to have your order processed and shipped within 4-5 days. For anything hand made to order, or back ordered, this is dealt with order by order and you'll be kept up to date throughout the process as well as each product description stating stock levels and/or ordering times. From an initial e-mail acknowledging the ordered item to updates along the way where possible. 
We know what it's like to be waiting by your letterbox for your mail order items! So we always aim to dispatch as quickly as we can for you :) 

Royal Mail - The services we offer are 1st Class standard, Tracked 48, Tracked 24 & Special Delivery depending on the value and total weight/size of the goods in your cart. 

Courier - After trying a few courier options over the years, I have now decided to settle with what I feel will offer my customers the best service, DPD. They offer a 1 hour delivery window meaning you don't have to wait in all day not knowing when the driver will arrive, the option to change delivery dates for a more convenient day, or to have the parcel delivered to one of their many local pick-up points too. This can all be done via your DPD tracking once the parcel is dispatched from myself.

International - I post most International orders with Royal Mail International Tracked. If you would prefer a courier option, please get in touch and I will obtain an accurate International courier quote for you.

Shipping rates are calculated by value of goods in your cart (determining the level of insurance cover required) total weight or volumetric shipping weight, whichever is greater, and overall size of the goods. Sometimes it may miss-calculate items so if you feel the shipping price seems off the mark, it may well just be a simple error so do please feel free to drop me an e-mail and I will do a shipping quote manually for the goods.

There are a range of items we offer that are special order, perhaps a custom spec Jennings Guitar for example!
So with some items being special order, we will keep you updated with delivery estimates through every step of the order.As a rule, most conventional items (not custom build guitars for example) we list are in stock at our distribution warehouses so aim to have your order processed and shipped within 4-5 days. For anything hand made to order, or back ordered, this is dealt with order by order and you'll be kept up to date throughout the process as well as each product description stating stock levels and/or ordering times. From an initial e-mail acknowledging the ordered item to updates along the way where possible. 
We know what it's like to be waiting by your letterbox for your mail order items! So we always aim to dispatch as quickly as we can for you :) 

Unless otherwise stated specifically in the listing, ALL Signature Series pre-wired kits are made to order.
This means I only make the kit once the order is placed, and due to the volume of orders for these kits, I make them in the order of which they have been placed. This turnaround time is generally between 5-7 working days.
If there is by chance an additional delay to this, I will endevour to inform you as soon as possible.
This production time does not include transit time, that is entirely separate timeframe.

Don't worry, I'm here to help. If the order hasn't been dispatched yet and it's an in stock item, we will cancel and refund your order as quickly as we can. Refunds will only be processed via the same method of payment to which you used when placing your order. Very often PayPal will process a refund as an 'echeque', these can take up to 7 working days to clear to your account. All I ask is that you get in touch with me ASAP after changing your mind about an order. Because I may have already dispatched your order or have placed an order for your special made to order items.

If it is a special order item (something I have specifically ordered in for you, or has been specifically made for you), I will need to individually review the situation and asses a sufficient resolve. Under CRA, you only have a right to reject goods that are of unsatisfactory quality, unfit for purpose or not as described. So please bare this in mind on your specifically made to order items. Some items I will be happy to keep in stock, so if I consider this to be the case on your item, I will refund and keep the item here for stock and sometimes may have to charge a handling fee if it isn't something I would normally keep in stock. This isn't always possible though, due to the nature of some custom made to order items. If it is a completely custom spec guitar, pickup or harness for example, then I'm afraid this wouldn't be possible due to the nature of the goods. But we want to make sure you're happy, that's No1 and means a lot to me. So will aim to help best we can for the given situation. Please get in touch to discuss this further and I will review the situation/item/order in particular.

If you have purchased goods in person from James' Home of Tone either from my office address, or from a guitar exhibition/show, and you have simply changed your mind then you have no legal rights to return for a refund as per your statutory rights. Again though, drop me a message, because if it's an item I'd be happy to have back on the shelf and it is in as new, re-salable condition then I will consider from there :)

If you have received your order but want to return it, then let's go through the details as there are some different examples of why that is. There are a few reasons this might be, perhaps you have changed your mind, or the item is sadly faulty. So, let's break it down. Most of this is basic Consumer law, so feel free to read the CRA or see below for a run down of some of the relevant points.

Faulty Goods - 
Under the Consumer Rights Act, if it is within 30 days of your date of receiving the item, and the item is faulty, then you are entitled to return the item for a refund of the goods. You are also of course entitled to a repair or replacement, depending on your preference. But if it is over 30 days since your date of receiving the goods, you aren't legally entitled to an automatic refund but I do have to offer a repair or replacement where possible. In either of these cases, please do get in touch first and we can get straight to resolving this for you. I'm a very small business owner/human, and I really care about my customers. That means you won't get treated badly, nor like a how huge business would handle these situations and get passed from person to person in an effort to resolve. You'll only deal with me, and I'll endeavor to resolve as soon as possible for you.

Some brands I stock offer their own product warranty agreements, and those warranties lie with that manufacturer, but as the retailer of the item I will endeavor to help resolve in the most effective way possible. For example, some manufacturers request that the faulty item is returned direct to them for repair/inspection, so if returning the item to the manufacturer isn't possible for you, then please get in touch with me and I will see how I can help in getting the item to them on your behalf. Again, I really care about my customers and even though the warranty lies with the manufacturer in these instances, I'm here to help and you won't be forgotten. Once the item is returned, it will be assessed and the goods will be shipped to the manufacturer for inspection and/or repair/replacement where possible. It is not always possible to provide an ETA for warranty repairs however we endeavor to obtain regular updates from the supplier, and will update you whenever we receive information on your repair. In most cases, goods returned under warranty are repaired rather than replaced. 

The item simply wasn't what you wanted to order/changed your mind - 
If you have simply decided the item isn't for you, and have changed your mind, then you are again entitled under the Consumer Contracts Regulations to cancel your order within 14 days of your date the item was delivered to your address, and a further 14 days to ensure the goods are returned to James' Home of Tone safely. Returning the goods is your responsibility, ensuring they return safely and the return postage costs will need to be covered by you, the consumer. If you chose to have the item signed for/delivered to a neighbor or safe place, this date applies too. I do ask as a matter of goodwill to help a very small business survive, that the item and it's original packaging, are in as new condition ready for re-sale. The Home of Tone really care about each and every product, I understand that you may change your mind after a purchase, but please do respect the goods and keep them in as new condition if this is the case. If the item upon return is deemed unfit for resale, damaged or used incorrectly causing issues, then we are in our rights to decline the return/refund. If you have an item that you'd like to return as you've changed your mind or it isn't quite suited to you, then just simply get in touch with me within 14 days of the date the goods arrived with you, and ensure the goods are returned to us within a further 14 days, I will ensure you are refunded as soon as possible. You will be refunded to cost of the goods only, not the shipping costs.
If it is over 30 days since the date the goods arrived to you, then it is legally past the consumer rights act time-frame for return of a non faulty item. In this case, do feel free to contact me and we will asses the situation. It may well be that I am in a position to have the item back for stock, if of course it is in unused, as new condition but may need to charge a re-stocking fee due to transnational costs and fees I will incur processing this. This is on my discretion so please bare this in mind and be respectful of the situation in light of being over your legal rights under distance selling rules.

Items that are exceptions to the above conditions regarding goods being returned outside of the 30 day period are -
McNelly Pickups that have been used, IE wired up, connected or soldered, to a guitar. Strings that have been strung up to a guitar, or cut. Effects pedals that have been miss-treated, damaged or incorrect power supply used causing damage, Home of Tone Wiring harnesses that have been fitted and/or soldered to a guitar. For any items like this or something you're not sure of, do please get in touch, I'll be happy to advise.

For our returns address, please contact james@homeoftone.co.uk and I will let you know straight away!

If you could pop your order number, or a reference with the parcel so we can trace who the return is from, that would be super helpful!

You'll find all the wiring diagrams corresponding to pre-wired kits I offer, linked and viewable via the main menu. Hover over the 'Wiring Diagrams & Info' menu where you'll find all diagrams available.

I'm afraid I do not offer a custom harness service. Only harness kits available are the developed and tested product range listed on the website.

Yeah no worries at all! If for example you want to order a Strat Modern kit, but would prefer it with 500k pots instead of the usual 250k, or want a 0.1uF cap spec instead of 0.022uF, then yes! I'm happy to help with that and can certainly make the kit with a specific value. But I'm afraid I will not make changes to the schematic itself or produce a custom schematic/harness.

This ultimately comes down to whether you own the equipment needed to correctly and safely install the kit, or how comfortable you feel working on your own guitar. I do feel that installing a pre-wired guitar harness is do-able for many guitarists but only if the correct tools are used and care is taken to ensure you do not damage the kit, your guitar or yourself! There are detailed installation guides here on my website, as well as simple to follow wiring diagrams all to help make the process as easy as possible and in my experience, these have helped thousands of my customers carry out their own install. But if for any reason you have concerns about fitting the kit yourself which is completely fine to do so, then I'm sure you'll agree that it is likely best to have a professional fit the kit and help ensure your purchased kit, and your beloved guitar are both looked after and worked on correctly. 
If you are local to me (Stourbridge, West Midlands) I take on guitar work no problem at all so will certainly be able to help install your Signature Series harness. 

This ultimately depends on what spec of wiring your guitar already has, or where it is made. My kits predominantly use premium components which are made to imperial specifications by each manufacturer (CTS, CRL, Switchcraft, Pure Tone etc). So if you're planning on fitting one of my wiring kits to your USA made instrument, then chances are the guitar already has imperial spec wiring components/hardware and the kit will be a like-for-like swap resulting in very little or no modifications at all needed to the guitar to fit. 
But if you're fitting the kit to an instrument with metric spec components, or it was made in the far east for example, then there is a good chance there will be some level of modification required to fit the upgrade kit. These could include widening the holes in the body or pickguard to accommodate the new pots, needing new control knobs and switch tips to fit the larger pot shaft diameters and switch thread/sizes or using an imperial threaded jack socket/mount. These are all common and normal procedures and changes to make when upgrading a far east, metric spec instrument to premium imperial sized components and within my installation guides and product descriptions will help guide what to expect with this work and in some cases, how to carry out those changes. 
If you're not sure what spec of component your guitar has, or where the guitar was originally made, then by all means drop me a message with some details about the guitar and I will certainly help identify this for you, and do my best to explain the level of work required to install it.

This is a really important question and one understandably asked a lot. The CTS pots I use across my harness range have a mounting thread diameter of 9.52mm, and a 10mm hole is usually required to mount them comfortably. This is quite a bit larger than common import sized pots seen on Squier, Epiphone or other far east made guitars, which usually have a mounting thread diameter of 6mm or 8mm depending on type or brand used. So chances are, if you have a far east made guitar, you will need to widen the holes in your pickguard or guitar body depending on what type of guitar you have, to suit the larger CTS pots used in a new harness. 
To carry out this task, I recommend doing this using a step cutter bit. This is in my experience the safest method as it will reduce the risk of paint chipping around the hole if a guitar body mounted pot, or tear out on a plastic pickguard/control plate.
I usually widen the pot mounting hole on pickguards or bodies, to a 10mm hole to comfortably suit and fit the CTS USA specification 9.52mm shaft diameter. A good technique is to tape off the stop point diameter required on the step cutter to avoid drilling to the wrong diameter hole, and carefully run your drill to ensure an accurately finished hole. Once this is done, you can final finish the hole to straight edges by running a regular 10mm drill bit through for the pots to easily fit through. IMPORTANT- I highly recommend that if you are not comfortable with doing this in any form, or importantly don’t have the correct tools, then please considering taking this to be done by a trusted professional guitar technician. It’s not worth the upset and disappointment in damaging your guitar!

Now, this one although might seem otherwise menial, is a really important question as trying to force fit the wrong sized control knobs or even doing so with the correct sized ones in some cases, onto the pot can completely damage them. So please do take the time to read through this one as it could prevent some headaches after everything is installed and a simple control knob ruins your hard work!
I use across my harness range, USA spec pots which for split shaft versions measure 5.95mm with 24 splines, and 6.35mm for solid shaft versions. 
In most cases, the original control knobs on import type guitars such as Squier or Epiphone for example, will have metric sized, smaller fitting control knobs suited to smaller pot shaft diameters. These items simply won't fit onto the larger USA spec pots I'm afraid. If your guitar is a Fender or a Gibson, USA made guitar then chances are your original control knobs will fit onto the new harness pots just fine. But it is still VERY important to ensure care is taking when installing those push-fit control knobs as damage can still be done to the pot if fitting incorrectly believe it or not. For each harness I have included the measurements of the pot shaft type used in that particular kit. I hope this helps identify if the pots used in that kit, will suit the control knobs you already have, or whether you need to order new ones to suit. 
These details are the same for switch tips too. For example, threaded switch toggles like those used on Gibson style guitars for example will have a specific thread pitch/size. As I use Switchcraft USA toggles (imperial thread) and CRL/Oak switches these will both require USA/imperial spec tips, much like with the control knobs.