Fastwarm Underfloor Heating Reviews 2,923

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 company's products, highlighting their quality and effectiveness. Consumers appreciate the professional advice received, which has proven invaluable in their design choices. The level of service provided is frequently described as exceptional from start to finish. People are particularly impressed with the speed and efficiency of the delivery service, with many noting that orders are dispatched quickly and often arrive the next day. The staff is commended for their knowledge, helpfulness, and willingness to go the extra mile to assist customers. The ordering process is generally considered easy, and the company's responsiveness to inquiries and issues is highly valued by reviewers.

Based on these reviews

Rated 5 out of 5 stars

From submitting floor plan to order placed with detailed design layout took 48hrs. Dornell was great, I had a few minor adjustments from original quote thermostat colour change and direction floor j... See more

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Rated 5 out of 5 stars

I ordered a central thermostat Heatmiser controller. I month after arrival's noticed the plug was not working. One phone call, no quibbling and a pick up and another controller delivered within24 ho... See more

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Rated 5 out of 5 stars

Good priced tile adhesive and delivery cost was very fair. Website is easy to navigate. Would have been great to have had a wider selection such as stocking grout but understand you are mainly floorin... See more

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Rated 5 out of 5 stars

We have bin with Fastwarm for just over a year don’t think we would take our business anywhere else first time we used Fastwarm had professional advice which has helped with some of our designs always... See more

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Rated 5 out of 5 stars

Fantastic experience with Fast Warm UK so far! 🤩 Customer service is top-notch and delivery was really quick 🚀. Haven't got the product installed yet, but the service has been brilliant - fingers cr... See more

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Rated 5 out of 5 stars

very speedy service. dispatched within an hour of ordering, was supposed to arrive by 10 am the following day, arrived 10.15 and the parcel force driver couldn't have been more apologetic, i mean 15 m... See more

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Rated 5 out of 5 stars

I bought a complete wet system, pipes controller manifold etc. advice was great, including designing my pipe runs for me. 3 months later I had a problem with the wiring centre. I am always worried... See more

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Rated 5 out of 5 stars

Exceptional service from beginning to end. Dean Shaw is a legend. Friendly chap who is always there to answer any questions. We had a problem with the wrong thermostats. Discovered it 8 months after t... See more

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Rated 5 out of 5 stars

Contacted Fastwarm prior to purchasing for some advice, call handler was knowledgeable and helpful. Purchased directly through their website, easy process and super quick delivery within 24 hours.... See more

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Rated 5 out of 5 stars

Spoke with Toby from Fastwarm about an upcoming project and what I wanted. Toby went above and beyond my expectations, he’s a true asset to the company his experience and knowledge was miles more than... See more

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Rated 5 out of 5 stars

I ordered Fastwarm underfloor heating for my loft bathroom 2 months ago, it is so good that I placed an order yesterday to install the system for my 1st floor bathroom. The Fastwarm team is efficient... See more

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Rated 5 out of 5 stars

This is my second purchase from Fastwarm and once again they’ve been outstanding. The service advice was absolutely spot‑on — clear, helpful, and genuinely knowledgeable. On top of that, their prices... See more

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Rated 5 out of 5 stars

Purchased the Heatmiser Neohub and needed some advice on compatibility, very fast and concise responses via email, even one on a Sunday! The hub arrived promptly, great price and postage cost. Have in... See more

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Rated 5 out of 5 stars

I purchased a kit from Fastwarm a couple of months ago now and had an electrician install the thermostat and associated wiring. I wanted to lay the mat myself and needed some help with an issue. After... See more

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Rated 5 out of 5 stars

From purchase to delivery was perfection, a great product that we as small business will definitely be using again. Simple system that leaves you with a confident fit, just don’t forget to cut the unu... See more

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Rated 5 out of 5 stars

Got through directly and quickly. Answered my questions thoroughly and quoted a good price. Really surprised it was next day delivery and sure enough arrived next day. Couldn't ask for better. Would d... See more

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Rated 5 out of 5 stars

Ordered electric loose cable kit from Fastwarm. Ordering was easy and delivery was quick. Owing to a few design changes in my refurb project I needed to return the kit for a smaller system and again... See more

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Rated 5 out of 5 stars

This company and its staff never fail. I have literally been walked through the entire process from understanding their products to buying and installing. Issues with deliveries were sorted so quickly... See more

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Rated 5 out of 5 stars

Purchased uderfloor heating for wook laminate but purchased the incorrect size. After a quick call with a very good customer care staff member I was able to exchange the unit for the correct size and... See more

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Rated 5 out of 5 stars

Another amazing experience with the fastwarm team. Parts dispatched same day for 10am delivery the next day, to keep my project on track after I’d forgotten to order a thermostat. A huge tha... See more

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Rated 4 out of 5 stars

App is too confusing - nothing intuitive about it at all. Lots of Chinese text throughout the interface! Online and hard copy manuals contain typo’s and bad grammar. It may be a great Smart product,... See more

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Rated 2 out of 5 stars

Who designed this junk? The fill and drain valves were awful! Trying to tighten them into the manifold was a joke, I've had to leave the return upside down, I have no faith in the thing being watertig... See more

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Rated 3 out of 5 stars

I don’t have it. I paid for one day delivery and your courier has delivered it somewhere else. I now need to find it I’ve changed my rating because you did follow up. I recommend that if a deliver... See more

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Rated 4 out of 5 stars

This self levelling compound was quick and easy to lay and drying time was 2-3 hours which was fantastic. My only concern was it was thick unlike the other products I used and it did not level as I a... See more

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Rated 3 out of 5 stars

We bought one of the smallest mats to go underneath engineered wood floor on top of the recommended thermal underlay. The kit itself and guidance was great and I had a professional do the necessary el... See more

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Rated 4 out of 5 stars

Ordered a V3 platinum Heatmiser Neostat and they sent me a V2 in error. I emailed them in the evening to explain the error and they rang me to apologise the next morning when they opened. They arrang... See more

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Rated 5 out of 5 stars

We’ve been working with Fastwarm Limited for over a year now on many of our projects, and they’ve been nothing but excellent. Their team is always professional, helpful, and reliable. Every order arri... See more

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Rated 5 out of 5 stars

I'm impressed in my dealing with Fastwarm recently. Their quote for underfloor heating came in at a good price and they were flexible with my delivery date when we were not quite ready to have the... See more

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Rated 5 out of 5 stars

Absolutely fantastic service from this company, with James Parmenter going above and beyond to make sure I received all the information i required….and I did ask a lot of questions ha ha. Also deliver... See more

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Rated 5 out of 5 stars

Excellent, responsive customer service (you can call and expect someone to answer, every time). They provided a flexible design service for our UFH, and engaged with our builder and tiler to give... See more

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Rated 5 out of 5 stars

The team especially Toby really know their product. They are open to help their customer base across all heating topics even past their own product remit. Really good service. Have recommended them to... See more

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Rated 3 out of 5 stars

I ordered the 6 items from Fastwarm, delivery was received within 3 days. However, the items were placed into a large cardboard box without any internal packaging leaving the items free to rattle arou... See more

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Rated 5 out of 5 stars

As an installer, quick delivery, technical support, well on point. Yes there are others. But customer service hands down. Thanks. Great company North South flooring. Jon sankey.

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Rated 5 out of 5 stars

We dealt with James at Fastwarm for an underfloor heating order. He stayed patient throughout the process and handled several order changes without hesitation. He answered every question clearly and p... See more

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Rated 3 out of 5 stars

Excellent service but spoilt by internal packaging. The stranded cardboard used to protect the items makes bits that go everywhere, including being stuck to the tape. Pain to clean up Please find an... See more

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Rated 5 out of 5 stars

We used this company to supply underfloor heating for a job. They couldn’t have been any better. From ordering to receiving they exceeded expectations. Alfie was very helpful and was able to answer... See more

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Rated 5 out of 5 stars

Very helpful staff up to date knowledge quick and easy ordering with next day deliveries or store pick up Amazed how professional they are

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Rated 5 out of 5 stars

I was looking for a kit that could cover two rooms, but I wasn’t sure about the square metres required as my rooms fell in between the 40m and 60m kits. I spoke to Jake, sent him a badly hand drawn di... See more

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Rated 5 out of 5 stars

The customer service was excellent on the telephone and assisted me to place my order. Easy payment, followed by email invoice. Dispatch and next day delivery. First class service Thank you

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Rated 5 out of 5 stars

Every Department, member of staff goes above and beyond, can't fault their professionalism and level of customer service. Quality products and prices. Dornell, Sam, Donna, Emma and Toby...thank you fo... See more

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Rated 3 out of 5 stars

Only part of my order was delivered. Had to chase the rest of the order, which was dispatched promptly. Installation instructions supplied with mat kits could be more detailed such as wiring diagram... See more

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Rated 5 out of 5 stars

All the contact I have had with Fastwarm staff from the initial enquiry, through the ordering, the delivery and a couple of small issues that were resolved straight away has been excellent Although o... See more

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Rated 5 out of 5 stars

I cannot recommend the Fastwarm team enough. The entire customer service team are fantastic - knowledgeable, accommodating and prompt. It's rare to work with such great companies! Shout out to both... See more

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Rated 5 out of 5 stars

Easy to use and reasonable quality / price, most of the items received were of good quality and did exactly what was expected without any issues. However the 15mm manifold connectors were poor and co... See more

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Rated 5 out of 5 stars

My 1st contact was the technical department which gave me a complete rundown on what I’d need to comply with needs (size of heating mat, depth etc) and a shopping list and price. I couldn’t have asked... See more

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Rated 5 out of 5 stars

Great people to fo business with! Spoke with Jake who studied my drawings and created a comprehensive list of everything I would need. After a few questions and adjustments - my order was placed. Ord... See more

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Rated 5 out of 5 stars

As always those people at fastwarm provide expert advice along with exceptional customer service and with prices unmatched in the industry. Why would you deal with anyone else? Thanks again Fastwarm... See more

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Company details

  1. #5 of 112 best companies in Building Materials Supplier
  2. #2 of 47 best companies in Building materials store
  3. #2 of 73 best companies in Heating equipment supplier
  4. #12 of 126 best companies in Heating service
  5. #17 of 249 best companies in Home improvement shop
  6. #5 of 55 best companies in Plumbers' merchant

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
4-star
3-star
2-star
1-star

Replied to 90% of negative reviews

Typically replies within 48 hours

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Rated 5 out of 5 stars

I should of tried fastwarm first!

I had purchased an underfloor heating system from a well known competitor and I wasn't happy with the electrical side of their system so contacted james at fastwarm and explained the situation and that I needed a zoned smart system with separate floor probes and opentherm compatible and he sent me everything I needed.

9 February 2026
Fastwarm Underfloor Heating logo

Reply from Fastwarm Underfloor Heating

Hi,

Thank you for your 5* review!

James at Fastwarm tries to go the extra mile for all our customers, so your recognition is most appreciated. We hope to hear from you again soon!

Kind Regards,
Team @Fastwarm

Rated 4 out of 5 stars

Still getting used to the app but…

Still getting used to the app but otherwise nice product

4 February 2026
Fastwarm Underfloor Heating logo

Reply from Fastwarm Underfloor Heating

Hi,

Thank you for your positive review!
If you require any further assistance, please do not hesitate to contact our Technical team.

Kind regards,
Team@Fastwarm

Rated 5 out of 5 stars

Ordered the item I needed

Ordered the item I needed. The complete process stra8ght forward. Kept informed by the del8very co on its arrival. So completely satisfied

3 February 2026
Fastwarm Underfloor Heating logo

Reply from Fastwarm Underfloor Heating

Hi Pravinder,

Thank you for your glowing review!
We are pleased to hear you were happy with our service, products and speed of delivery. We hope to hear from you again soon.

Kind regards,
Team@Fastwarm

Rated 5 out of 5 stars

Quick and easy

Quick and easy

11 February 2026
Fastwarm Underfloor Heating logo

Reply from Fastwarm Underfloor Heating

Hi Andrey,

Thank you for your glowing review! We look forward to hearing from you again soon.

Kind regards,
Team@Fastwarm

Rated 5 out of 5 stars

Great service and prompt

Great service and prompt

26 January 2026
Fastwarm Underfloor Heating logo

Reply from Fastwarm Underfloor Heating

Hi Rob,

Thank you for your 5* review!
We are so pleased to hear you were happy with our service and speed of delivery. We hope to hear from you again soon.

Kind regards,
Team@Fastwarm

Rated 5 out of 5 stars

excellent product

excellent product, excellent delivery.

2 February 2026
Fastwarm Underfloor Heating logo

Reply from Fastwarm Underfloor Heating

Hi Stuart,

Thank you for your positive review!
We are so pleased to hear you were happy with our products and speed of delivery.

Kind regards,
Team@Fastwarm

Rated 5 out of 5 stars

No fuss buying process

Found everything that I needed easily on the website. Quick and simple buying process.

10 February 2026
Fastwarm Underfloor Heating logo

Reply from Fastwarm Underfloor Heating

Hi Ray,

Thank you for your 5* review!
We are pleased to hear you were happy with our buying process. We hope to hear from you again soon!

Kind regards,
Team@Fastwarm

Rated 5 out of 5 stars

Best Price & Excellent Service !!!!

I needed a room sensor and after trying various places, I found one at a much better price than elsewhere, at Fastwarm. I ordered the sensor one day and it was delivered the following day. Excellent service. Thanks very much!!!

10 February 2026
Fastwarm Underfloor Heating logo

Reply from Fastwarm Underfloor Heating

Hi Kelly,

Thank you so much for taking the time to post your positive review!
We are so pleased to hear you were happy with our products and prices. We hope to hear from you again soon.

Kind regards,
Team@Fastwarm

Rated 1 out of 5 stars
Fastwarm Underfloor Heating logo

Reply from Fastwarm Underfloor Heating

Hi Mark,

Thank you for taking the time to speak with our Technical Support Department. You have kindly advised that this review is not a reflection on Fastwarm products and should have been published for another company.

We look forward to hearing from you again for your future projects!

Kind regards,
Team@Fastwarm

Rated 5 out of 5 stars

Best underfloor store or order …

Very helpful staff up to date knowledge quick and easy ordering with next day deliveries or store pick up
Amazed how professional they are

10 February 2026
Fastwarm Underfloor Heating logo

Reply from Fastwarm Underfloor Heating

Hi Joe,

Thank you so much for your glowing review!

Everyone at Fastwarm tries to go the extra mile for all our customers, so your recognition is most appreciated. We hope to hear from you again soon!

Kind Regards,
Team @Fastwarm

Rated 5 out of 5 stars

Tile grout delivery

Great value products delivered super quickly

6 February 2026
Fastwarm Underfloor Heating logo

Reply from Fastwarm Underfloor Heating

Hi Ian,

Thank you for your 5* review!
We are pleased to hear you were happy with our products and speed of delivery. We hope to hear from you again soon.

Kind regards,
Team@Fastwarm

Rated 5 out of 5 stars

Alfie is really good

Alfie is really good - prices reasonable and fast service

9 February 2026
Fastwarm Underfloor Heating logo

Reply from Fastwarm Underfloor Heating

Hi,

Thank you for your 5* review!
We are so pleased to hear you were happy with the service provided by Alfie. We hope to hear from you again soon!

Kind regards,
Team@Fastwarm

Rated 5 out of 5 stars
Fastwarm Underfloor Heating logo

Reply from Fastwarm Underfloor Heating

Hi Mark,

Thank you for taking the time to post your positive review!
We hope to hear from you again soon.

Kind regards,
Team@Fastwarm

Rated 5 out of 5 stars

Excellent service

Excellent service! Phoned them first to ask a question and they were really helpful. Placed an order and have received it the next day. Very impressed. Will definitely use again.

6 February 2026
Fastwarm Underfloor Heating logo

Reply from Fastwarm Underfloor Heating

Hi Alison,

Thank you for your glowing review!
Everyone at Fastwarm tries to go the extra mile for all our customers, so your recognition is most appreciated. We hope to hear from you again soon!

Kind Regards,
Team @Fastwarm

Rated 5 out of 5 stars

Happy with purchase

Happy with purchase, wanted V3 thermostat but company phoned to tell me they weren’t in stock but I could have V2, which were fine. Arrived quickly and reasonable price

29 January 2026
Fastwarm Underfloor Heating logo

Reply from Fastwarm Underfloor Heating

Hi Stephen,

Everyone at Fastwarm tries to go the extra mile for all our customers, so your recognition is most appreciated. We hope to hear from you again soon!

Kind Regards,
Team @Fastwarm

Rated 5 out of 5 stars

Super Customer service would highly…

Super Customer service would highly recommend!!

29 January 2026
Fastwarm Underfloor Heating logo

Reply from Fastwarm Underfloor Heating

Hi Simon,

We would like to take this opportunity to thank you for your continued custom and for recommending Fastwarm.
We look forward to hearing from you again soon.

Kind Regards,
Team @Fastwarm.

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