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Rated 5 out of 5 stars

Very happy with the customer support and how quickly my query was resolved – the team was responsive, friendly, and genuinely helpful. I couldn’t be more pleased with the experience. Wishing the team... See more

Company replied

Rated 1 out of 5 stars

If you want a reliable product with good aftercare, do not choose Thermosphere. After contacting Thermosphere with the relevant information they supplied a list of materials that were required to ensu... See more

Rated 5 out of 5 stars

Thermometer offer fantastic customer service with real people to support you. Not the usual barrier of chat bots, submit your problem on line etc. Alaska returned my call quickly, very patiently w... See more

Company replied

Rated 5 out of 5 stars

Alaska was very patient and thorough in helping me to re-set my underfloor heating having switched it off in the summer. She quickly identified where I was going wrong in re-programming it and then ga... See more

Company replied

Company details

  1. Heating Equipment Supplier
  2. Building Materials Supplier
  3. Manufacturer

Written by the company

ThermoSphere is a British-based manufacturer of electric heating systems, trusted by installers and tradespeople across the UK since 1998. With British manufacturing at the heart of everything we do, we design and produce reliable, high-performance electric heating products that are straightforward to specify, quick to install and built to last — helping reduce issues on site and avoid callbacks. Known as the installer’s brand of choice, ThermoSphere combines proven electric heating expertise with smart, forward-thinking technology to deliver systems that work seamlessly in real-world installations. From electric underfloor heating to intelligent controls, our products are engineered to save time on site while delivering efficient, dependable performance for end users, with fast quote turnaround to keep projects moving and local reseller availability ensuring next-day access to products without selling direct. We support the trade with clear technical guidance, 24/7 UK-based support and products designed to make every installation simpler and more profitable. By making electric heating easy, ThermoSphere helps installers deliver comfortable, energy-efficient spaces with confidence — today and into the future.


Contact info

4.5

Excellent

TrustScore 4.5 out of 5

151 reviews

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

Replied to 100% of negative reviews

Typically replies within 1 week

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Rated 5 out of 5 stars

Superb B2B Service

Very impressed with Ruben Reynolds and his service in sorting out a B2B issue with one of our clients. Called on Friday afternoon to request additional stock and it was delivered directly to the customer (in Northern Ireland) by Monday afternoon. Can't fault it at all.

August 8, 2022
Unprompted review
ThermoSphere logo

Reply from ThermoSphere

Hi Ryan,

Thank you very much for your review and we’re so pleased we were able to sort the issue. We have passed your feedback onto Ruben and we look forward to working with you again soon!

Many thanks,
Your ThermoSphere Team

Rated 5 out of 5 stars

Great service and communication

Actually won a competition for some thermophere membrane and a thermostat. Was incredibly pleased with how fast they processed the order and the communication. Would definitely recommend and would use them again

July 22, 2022
Unprompted review
ThermoSphere logo

Reply from ThermoSphere

Hi Hannah,

Firstly, congratulations on winning our competition with PHAM News!!! Secondly, thank you for taking the time to write this lovely review. We’re very pleased you had a great experience with the team, we look forward to working with you again in the future!

Many thanks,
Your ThermoSphere Team

Rated 5 out of 5 stars

Very Helpful with technical queries and quick to respond

I have contacted ThermoSphere a couple of times about questions I had before both ordering and installation. On both occasions they were very quick to respond and were very helpful in clarifying my technical questions. Would highly recommend!

July 7, 2022
Unprompted review
ThermoSphere logo

Reply from ThermoSphere

Hi Leigh,

Thank you for taking the time to write this review. We’re very pleased you had a great experience with the team, especially our Customer Services department. We’re so pleased you’d highly recommend us!

Many thanks,
Your ThermoSphere Team

Rated 5 out of 5 stars

Great experience when wanting advice…

Great experience when wanting advice and help to purchase some 12 v heated towel rails, David Cowley at their head office provided great customer service and helped me get delivery direct in 24 hrs despite having purchased via a wholesaler.
Now they are installed they look very smart and perform faultlessly and despite the significant extra cost compared with normal electric towel rails / radiators we think they are worth every penny.

June 13, 2022
Unprompted review
ThermoSphere logo

Reply from ThermoSphere

Hi Chris,

Thank you very much for your review. We’re so pleased you had a great experience with us, we will be sure to pass this onto the team. Enjoy your heated towel rails!

Many thanks,
Your ThermoSphere Team

Rated 5 out of 5 stars

Having used a ThermoSphere heating…

Having used a ThermoSphere heating system in my Bathroom for a couple of years, it made sense to add another ThermoSphere thermostat when installing UFH in my Kitchen. After getting everything installed, tested and connected, I tried to connect to the wireless hub, and started to struggle. One call to Lirona @ ThermoSphere, and she talked through a fix, with me, which resulted in a faulty hub being identified. This didn't pose a problem at all, as by the following day I had received a replacement, had installed it and had both UFH systems working on the hub wirelessly - absolutely fabulous service!

May 25, 2022
Unprompted review
ThermoSphere logo

Reply from ThermoSphere

Hi Lee,

Thank you very much for taking the time to write this super review. We have passed this excellent feedback onto Lirona and the team.

Thank you for using our products over the years, we hope you continue to enjoy them for many more to come. Glad we could help and you found our service fabulous!

Many thanks,

Your ThermoSphere Team

Rated 5 out of 5 stars

Recent Underfloor Heating Install

Recently installed Thermosphere membrane electric underfloor with BT21 thermostats controlling the various areas. Really happy with the finished result and love the fact I can control them from my phone. Spot on!

May 19, 2022
Unprompted review
ThermoSphere logo

Reply from ThermoSphere

Hi Matt,

Thanks for sharing and writing this great review. We’re very pleased to hear you love the ThermoSphere Membrane and BT21 combo, while controlling your heating from the app. Enjoy!

Many thanks,

Your ThermoSphere Team

Rated 2 out of 5 stars

A Thermosphere Dual Control was…

A Thermosphere Dual Control was installed in my shower room to control the underfloor heating and towel rail in May last year. I have found that whenever there is a power cut (even for only 2 minutes) the heating does not come back on when power returns. The controller switches off and has to be manually switched on again. I see that as a very significant deficiency in the product. I contacted Customer Service in February who told me that there was nothing that could be done to change this, but newer Dual Controls came on after power outages. So they do they do recognise this as an issue. Not happy.

April 15, 2022
Unprompted review
ThermoSphere logo

Reply from ThermoSphere

Hi Simon,

We’re sorry to hear that you are unhappy with your thermostat. As you say, this was not a feature in our old models of the Dual Control thermostat, however as an innovative company we are continually and actively looking to improve our products. As we strive to update features and functionality our latest model now has a feature to prevent this from being an issue for customers. If you’d like to buy a new model we’d be more than happy to direct you to your nearest retailer, please contact us by sales@thermosphere.com

Many thanks,

Your ThermoSphere Team

Rated 5 out of 5 stars

Faultless!

Absolutely first class products, service and technical support... faultless!

April 13, 2022
Unprompted review
ThermoSphere logo

Reply from ThermoSphere

Hi Iain,

Thank you very much, we really appreciate your kind feedback.

Many thanks,

Your ThermoSphere Team

Rated 5 out of 5 stars

Would just like to thank Lirona from…

Would just like to thank Lirona from your customer service team, for over 2 years now she has helped me and my company win and secure jobs and with the technical backup support she offers you cant go wrong with these products, great company and great support, also thanks to jodie as well

March 11, 2022
Unprompted review
ThermoSphere logo

Reply from ThermoSphere

Hi Neil,

Thank you so much for taking the time to post your review and for the lovely feedback! We'll make sure to pass this onto Lirona and Jodie. We look forward to continuing to work with you for the next 2 years and beyond.

Many thanks,

Your ThermoSphere Team

Rated 5 out of 5 stars

Fantastic products

Fantastic products, very easy to install! Plus the team were great when I had a question about what to order, knew what I was asking and came up with a quick option that solved the problem with two floors I needed UFH for.

March 9, 2022
Unprompted review
ThermoSphere logo

Reply from ThermoSphere

Hi Ronnie,

Thanks for sharing and writing this lovely review. Glad we could help and you found our products fantastic.

Many thanks,

Your ThermoSphere Team

Rated 5 out of 5 stars

Ellie was extremely helpful in…

Ellie was extremely helpful in providing me with some clarification on the user instructions that had been provided at the time of purchase. She also kindly sent me updated instructions for my information.

March 7, 2022
Unprompted review
ThermoSphere logo

Reply from ThermoSphere

Hi Ian,

Thank you very much for the review. We're glad we were able to provide the help and information needed. We'll ensure to pass the great positive feedback onto Ellie.

Many thanks,

Your ThermoSphere Team

Rated 5 out of 5 stars

Positive review

Ellie Lisbon was extremely helpful this morning. We have recently had a bathroom renovation with underfloor heating fitted and have struggled to set timings for the Eco setting. Seems to come on randomly. She has identified the problem and we now need the electrician back. So far to date she’s been extremely helpful, very pleasant and communication superb. Thanks Ellie

March 2, 2022
Unprompted review
ThermoSphere logo

Reply from ThermoSphere

Hi Mair,

Thank you ever so much for taking the time to write your review. I'm glad Ellie was able to help and identify the issue, thank you for your kind words we'll make sure they are passed on to Ellie.

Many thanks,

Your ThermoSphere Team

Rated 4 out of 5 stars

Ellie Lisbon

Ellie Lisbon was very helpful in guiding me through setting up the company's Dual Control Underfloor Heating Controller and I am very grateful for both her patience and her product knowledge.

The only reason this is not a 5 star review is that Ellie wouldn't have had to help me in the first place if the Instruction Book that came with the product hadn't been so inadequate!

February 28, 2022
Unprompted review
ThermoSphere logo

Reply from ThermoSphere

Hi David,

Thank you for writing this review and the lovely feedback for Ellie, we will make sure to pass this on.

Sorry we have not delivered a 5 star service on this occasion, we will be making revisions of our instruction books in the near future to resolve these issues.

Many thanks,
Your ThermoSphere Team

Rated 5 out of 5 stars

ThermoSphere Assistance

Great advice and co-operation from Ellie in my attempts to set up a new underfloor heating system. So refreshing to deal with somebody who genuinely wants to help a customer. She knows her stuff as well!!
Cheers Ellie, you come highly recommended!

All the best
Trev Lee

February 25, 2022
Unprompted review
ThermoSphere logo

Reply from ThermoSphere

Hi Trev,

Thank you for taking the time to write this great review. We have made sure to pass this super feedback onto the team and of course Ellie, you’ve made her day!

Many thanks,

Your ThermoSphere Team

Rated 5 out of 5 stars

Amazing customer service …

I can’t thank Jodie from Customer Support enough.
My elderly mother recently moved and we could not work out how to use the heating thermostat. I called Customer Support and Jodie spent time walking me through how to set up and use the thermostat properly. Jodie even sent me pictures!
The following day Jodie even took the time to call me to make sure that I had managed to get the heating working. Such amazing care and customer service! Thanks to all of Jodie’s help Mum is now warm.
A big thank you Jodie.

February 14, 2022
Unprompted review
ThermoSphere logo

Reply from ThermoSphere

Hi Elaine,

Thank you ever so much for the lovely review and taking the time to write it. It means so much to everyone here and especially Jodie who was very touched by your kind words.

Many thanks,

Your ThermoSphere Team

Rated 5 out of 5 stars

Wonderful customer service and assistance

I've just had wonderful customer service from Linora Mehmeti at Thermosphere. I'd been completely defeated with an error message and the inability to solve it, or programme the timer. Linora was so lovely,patient and calm and took me through every single day to set each timer correctly and even when I managed ( somehow) to do a factory reset in error, she still kept going and helping me. A second call to her sorted another smaller issue and she was still laughing and smiling ( possibly grimacing and I wouldn't blame her if she had been!) . Really has made the use of this much simpler as I now know if I run into trouble again, there is an immediate response to a call from a human being ready to help. Thank you again Linora. You were marvellous!

January 17, 2022
Unprompted review
ThermoSphere logo

Reply from ThermoSphere

Hi Sharon,

Thank you so much for taking the time to post a review and for the super feedback! We'll make sure to pass this onto Lirona, who we know will be thrilled with your message.

Many thanks,

Your ThermoSphere Team

Rated 5 out of 5 stars

Having sold many different brands of…

Having sold many different brands of UFH, I came across ThermoSphere via a customer lead. After the first order went to plan, I decided to try them with another order... they are now my go to Electric UFH supplier. Excellent communication, prompt delivery.. even directly to my customers' front door. Keep it up.. Thank you!

November 24, 2021
Unprompted review
ThermoSphere logo

Reply from ThermoSphere

Hi Steffan,

Thank you for choosing us as your go to Electric UFH supplier! We look forward to continuing to work with you.

Many thanks,

Your ThermoSphere Team

Rated 5 out of 5 stars

Very helpful telephone support

We've had a Comfortzone (the old name for ThermoSphere) thermostat for our underfloor heating for about 8 years. It's developed a fault recently (not controlling the temperature properly). I rang ThermoSphere customer support - spoke with Rhylan - and they were excellent. I wasn't sure they'd have support for homeowners, rather than just people in the trade, but they were happy to help. We talked through the problem and they were able to diagnose the fault. Not something it's possible to fix, but the service was very good. Will happily buy another Thermosphere product for that reason.

November 12, 2021
Unprompted review
ThermoSphere logo

Reply from ThermoSphere

Hi Tris,

We are always here to help and glad we were able to provide the service we pride ourselves on. Thank you for taking the time to share your experience. We will make sure to share with Rhylan and the team.

Many thanks,

Your ThermoSphere Team

Rated 5 out of 5 stars

thermostars!!!

We have been dealing with this company many years and have always found it a pleasure. the sales team are very knowledgeable, helpful and the tech team are amazing. I have personally been looked after by ruben and have always found he is always professional and always has a solution. Great company with amazing staff!!

November 9, 2021
Unprompted review
ThermoSphere logo

Reply from ThermoSphere

Hi Tasshy,

Thank you for a fantastic review, we really appreciate it! We have passed the feedback onto Ruben and the team. We look forward to continuing to work with you for years to come.

Many thanks,

Your ThermoSphere Team

Rated 1 out of 5 stars

We have had so many problems setting up…

We have had so many problems setting up now the up arrow dosent work so we can't use it as it stuck to low temperature we have only used it two times not happy

October 17, 2021
Unprompted review
ThermoSphere logo

Reply from ThermoSphere

Hi Jayne,

We're sorry to hear that you’ve had difficulty setting up the thermostat. Please could you contact our team on 0800 019 5899 or email hello@thermosphere.com and we will happily help resolve the issue that you are encountering.

Thanks,

Your ThermoSphere Team

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