Fastwarm Underfloor Heating Reviews 3,126

TrustScore 5 out of 5

4.9

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Review summary

Based on reviews, created with AI

Reviewers overwhelmingly had a great experience with this company. Customers consistently praise the products for their quality and ease of use, with many noting their satisfaction with underfloor heating kits and related items. The delivery service is frequently highlighted as exceptionally fast, often arriving the next day, which greatly impresses consumers. The staff receives high commendation for being knowledgeable, helpful, and friendly, providing excellent support and advice. However, some customers also noted occasional issues with orders, such as missing items or receiving incorrect products. While these instances were generally resolved by the company, they caused some inconvenience. Additionally, a few people mentioned that product manuals were not always clear, requiring them to contact technical support for assistance.

What people talk about most

Product

Clients share positive opinions on product quality and ease of use. Many reviewers praise the products as... See more

Delivery service

Users describe positive interactions with delivery services. Customers consistently praise the fast and... See more

Service

Reviewers mention positive feedback about service. Customers consistently praise the fast, efficient, and... See more

Staff

Consumers consistently express high satisfaction with the staff, highlighting their helpfulness, knowledge,... See more

Order

Customers consistently note positive experiences with order. Many reviewers praise the fast and efficient... See more

Based on these reviews

Rated 5 out of 5 stars

Speedy personal service, no automated answering machines or chat box. Exchanged my wrong order immediately and Alfie in Sales found the correct product in seconds. Despatched with the same efficiency... See more

Company replied

Rated 5 out of 5 stars

Really please with the electric UFH kit… really decent price and good quality materials Super fast postage aswell from fastwarm, all next day ect. When you compare the price of the matting for exa... See more

Company replied

Rated 5 out of 5 stars

Great product, at a good price. High quality goods, easy to install. What stood out most was the proactive and on point customer service & support when I did run into a problem. I'll be using Fastwa... See more

Company replied

Rated 5 out of 5 stars

Great service from fast warm team Always best prices and quick next day delivery All inc The heating product easy to use with self adhesive mats and Wi-Fi thermostat are easy to use on the a... See more

Company replied


Company details

  1. Building Materials Supplier
  2. Building Materials Store
  3. Heating Equipment Supplier
  4. Boiler and Heating Service
  5. Home Improvement Store
  6. Plumbing Supply Store

About Fastwarm Underfloor Heating

Written by the company

We are the fastest growing online retailer of Underfloor Heating Systems in the UK.

Providing full kits and free bespoke CAD quotations in under 2 hours. We pride ourselves on being the one stop shop for all things underfloor heating.

www.fastwarm.com

Contact info

4.9

Excellent

TrustScore 5 out of 5

3K reviews

5-star
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1-star

Replied to 100% of negative reviews

Typically replies within 48 hours

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Rated 5 out of 5 stars

Amazing service

Amazing service! Very competitive and very helpful would highly recommend them

16 April 2026
Fastwarm Underfloor Heating logo

Reply from Fastwarm Underfloor Heating

Hi Steve,

Thank you for your kind feedback. We’re pleased to hear you found our service helpful and competitively priced. Your recommendation is greatly appreciated!

Kind regards,
Team@Fastwarm

Rated 5 out of 5 stars

Undertile heating.

I've been using Fastwarm systems on many occasions and over few years. I'm especially grateful for decoupling mat that allows to simply push loose cable into the grooves. Company always deliver on time, never had bad experience. They also supply tile adhesive at competitive prices.

7 April 2026
Fastwarm Underfloor Heating logo

Reply from Fastwarm Underfloor Heating

Hi Sam,

Thanks so much for your review and continued support! Great to hear the decoupling mat has been a help and that everything’s been smooth with delivery. We really appreciate you choosing Fastwarm over the years!

Kind regards,
Team@Fastwarm

Rated 5 out of 5 stars

Easy company to buy from

Easy company to buy from. I have placed several orders which have all been quick delivery. The customer service was excellent when I needed to ask questions about the product(s). I would not hesitate to recommend fastwarm to other clients looking for under floor heating.

7 April 2026
Fastwarm Underfloor Heating logo

Reply from Fastwarm Underfloor Heating

Hi Julie,

Thanks so much for your great review! We are really glad you’ve had a great experience with delivery and support. We appreciate the recommendation and look forward to helping you again in the future!

Kind regards,
Team@Fastwarm

Rated 5 out of 5 stars

Just outstanding

What can I say about this company to truly reflect their outstanding service? From super quick delivery, very competitive pricing, follow up with customer, and the quality of backer boards were all second to none. They are highly recommended.

7 April 2026
Fastwarm Underfloor Heating logo

Reply from Fastwarm Underfloor Heating

Hi Ali,

Thank you so much for your amazing feedback! We’re really pleased to hear you were happy with the delivery speed, pricing, customer service, and the quality of the backer boards.
We truly appreciate your recommendation and look forward to working with you again!

Kind regards,
Team@Fastwarm

Rated 5 out of 5 stars

Excellent customer service and the…

Excellent customer service and the staff are very knowledgeable.

15 April 2026
Fastwarm Underfloor Heating logo

Reply from Fastwarm Underfloor Heating

Hi Phil,

Thanks for your feedback! We’re glad you had a great experience with our knowledgeable team and customer service. We appreciate your support!

Kind regards,
Team@Fastwarm

Rated 5 out of 5 stars

Great customer service

Very easy website to use. My order turned up within the delivery time, but some pipe was missing, so I rang up, and the customer service was fantastic. I had the pipe I needed the next day, and I even had another call to check everything was OK. Will definitely use again

2 April 2026
Fastwarm Underfloor Heating logo

Reply from Fastwarm Underfloor Heating

Hi Arthur,

Thank you for your feedback! We’re really glad you found the website easy to use and that your order arrived on time. Apologies again for the missing pipe, but it’s great to hear our team was able to resolve it quickly and keep you updated throughout. We truly appreciate your understanding and your kind words about our customer service. We look forward to helping you again in the future!

Kind regards,
Team@Fastwarm

Rated 5 out of 5 stars

Good product fast delivery no issues at…

Good product fast delivery no issues at all would buy from this company again

6 April 2026
Fastwarm Underfloor Heating logo

Reply from Fastwarm Underfloor Heating

Hi Danny,

Thanks so much for your feedback! We’re really pleased to hear you’re happy with the product and that everything arrived quickly without any issues. We truly appreciate your support and look forward to serving you again in the future!

Kind regards,
Team@Fastwarm

Rated 5 out of 5 stars

Quick delivery and the item is very…

Quick delivery and the item is very well rated online so I’m hopeful this was a great purchase.
I’m installed and not yet full switched on so can’t fully confirm but so far I’m happy.

7 April 2026
Fastwarm Underfloor Heating logo

Reply from Fastwarm Underfloor Heating

Hi Paul,

Thanks for your kind feedback! We’re glad to hear the delivery was quick and that your first impressions are positive. We hope to hear from you again soon!

Kind regards,
Team@Fastwarm

Rated 5 out of 5 stars

James's knowledge was really helpful…

James's knowledge was really helpful and concise. Easy and quick to complete the order and next day delivery. Thank you once again

14 April 2026
Unprompted review
Fastwarm Underfloor Heating logo

Reply from Fastwarm Underfloor Heating

Hi Mark,

Thank you for your kind feedback! We're glad James was helpful and that your order arrived quickly. We appreciate your support.

Kind regards,

Team@Fastwarm

Rated 5 out of 5 stars

Competitive prices

Competitive prices, quality products and great service. Very happy and highly recommend Fastwarm.

2 April 2026
Fastwarm Underfloor Heating logo

Reply from Fastwarm Underfloor Heating

Hi,

Thank you for your kind words! We’re delighted you’re happy with our prices, products, and service. We really appreciate the recommendation!

Kind regards,
Team@Fastwarm

Rated 5 out of 5 stars

Welsh Chapel Transformed

The project took a long time in planning throughout Alfie was great, at redesigning the planned layouts and making sure we found the best option. Eventually guided by the wonderful Ian from Constant Heating we settled on the injoist panels, which preserved floor height. The system has transformed the feel of the space, The Chapel has a stillness now, with much fewer drafts. Really appreciated all the help from Ian and his team.

15 March 2026
Unprompted review
Fastwarm Underfloor Heating logo

Reply from Fastwarm Underfloor Heating

Hi David,

Thank you for your feedback! We’re glad Alfie could help with the planning and great to hear the system has made such a difference to your space!

Kind regards,
Team@Fastwarm

Rated 5 out of 5 stars

Cannot fault their impeccable customer service

FastWarm offer the most amazing customer service and technical assistance when planning our second set of rooms with underfloor heating. We have loved having underfloor FastWarm in our kitchen - and our cats love it too - and our experience this time has been superb. We initially ordered slightly different insulation to that which we needed but Alfie helped us get things right and was incredibly helpful throughout the process. Having works done at home can be a very stressful business but FastWarm have made part of it a joy by being so friendly and helpful

13 April 2026
Fastwarm Underfloor Heating logo

Reply from Fastwarm Underfloor Heating

Hi Tim,

Thank you so much for your wonderful feedback! We're delighted you’re enjoying your underfloor heating (and that your cats love it too!). It’s great to hear Alfie was able to help get everything just right and make the process easier for you. We really appreciate your continued support!

Kind regards,
Team@Fastwarm

Rated 5 out of 5 stars

Really helpful both before and after…

Really helpful both before and after purchase. Even weeks later when we are finally ready to install Jake has been answering more questions and support.

13 April 2026
Fastwarm Underfloor Heating logo

Reply from Fastwarm Underfloor Heating

Hi Kath,

Thank you for your kind feedback! We're glad Jake could support you before and after your purchase—don’t hesitate to reach out if you need anything else!

Kind regards,

Team@Fastwarm

Rated 5 out of 5 stars

Brilliant product and brilliant after sales service

Brilliant product and touch thermostat very easy to use

The after sales is superb

I had a brilliant technical gentleman Head of Technical Toby Drake who was so patient and helpful when i had messed up the timing and temperature!

Great company great product and great staff to help when you need it

13 April 2026
Unprompted review
Fastwarm Underfloor Heating logo

Reply from Fastwarm Underfloor Heating

Hi Gillian,

Thank you for your great feedback. We’re really pleased you’re happy with the product and found the thermostat easy to use.

It’s great to hear Toby was so helpful and patient in getting everything sorted for you. We really appreciate your kind words about the team and your support.

Kind regards,
Team@Fastwarm

Rated 5 out of 5 stars

Ordered some tile backer boards from…

Ordered some tile backer boards from fastwarm as they were one of only a few companies that provided a 50mm thickness board as I needed to pack a shower enclosure out to accommodate the tray.

Unfortunately part of the first order I received had been damaged in transit and the boards were mis shapen on the edges. Normally this wouldn't be an issue if it was being used for flooring insulation but as it's a wet room I needed tight tolerances to be as waterproof as possible.

The same evening I received the items I contracted customer services via email and before 9am the following day I had a reply and a replacement order put through instantly which to be honest is outstanding service which I could not fault one bit. Fortunately the job wasn't delayed too much and replaced the new boards the next day.

My only recommendation would be to upgrade the packaging materials on the edges for the shower boards.

Thankyou to the fastwarm team for swift action. I would hands down recommended this company if you are looking for a great product and customer service that I believe this company takes very seriously which in 2026 is thin on the ground. Buy with confidence. Thanks.

1 April 2026
Fastwarm Underfloor Heating logo

Reply from Fastwarm Underfloor Heating

Hi Liam,

Thank you for your detailed feedback and for taking the time to share your experience. We’re really sorry to hear that part of your order arrived damaged, but pleased our customer service team was able to respond quickly and get a replacement sorted the next day so your work wasn’t delayed too much. We hope to hear from you again soon!

Kind regards,
Team@Fastwarm

Rated 5 out of 5 stars

Really pleased with the product and the…

Really pleased with the product and the service from start to finish
Sales, customer services and technical staff were all absolutely superb.

17 March 2026
Fastwarm Underfloor Heating logo

Reply from Fastwarm Underfloor Heating

Hi James,

Thank you for your kind feedback. We’re really pleased to hear you’re happy with the product and that our sales, customer service, and technical teams were able to help throughout.

Kind regards,
Team@Fastwarm

Rated 5 out of 5 stars

I already have the under wood floor…

I already have the under wood floor mats and thermostat in my living room and I’ve just ordered more for another room
Almost £700 cheaper than a local supplier that I was expecting to beat fastwarms prices.
As a self employed joiner I fully recommend fast warm for the laminate heat mats

11 April 2026
Fastwarm Underfloor Heating logo

Reply from Fastwarm Underfloor Heating

Hi Ryan,

Thank you for your great feedback and recommendation. We’re really pleased to hear you’re happy with the underfloor heating mats and thermostat, and that you found us great value compared to other suppliers.

We truly appreciate your support and look forward to helping you again in the future!

Kind regards,
Team@Fastwarm

Rated 5 out of 5 stars

You can trust company

Product,Service and Delivery Services was great fast.

3 April 2026
Fastwarm Underfloor Heating logo

Reply from Fastwarm Underfloor Heating

Hi Rytis,

Thank you for your feedback. We’re glad you’re happy with the product, service, and fast delivery. We really appreciate your support.

Kind regards,
Team@Fastwarm

Rated 4 out of 5 stars

Delivery failed twice

Delivery failed twice. Product case fit on the wall shows slight difference compared to Abiente thus requires paint touch upon

1 April 2026
Fastwarm Underfloor Heating logo

Reply from Fastwarm Underfloor Heating

Hi Allen,

Thank you for your feedback, and we’re sorry to hear about the delivery issues. This isn’t the level of service we aim to provide.

We also appreciate you highlighting the difference in the product finish and the extra work required. Your comments are really helpful, and we’ll take them on board. Please feel free to contact us directly if there’s anything we can do to help.

Kind regards,
Team@Fastwarm

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