I built a passive house. 21 degrees, fitted the windows and doors, and designed and supplied the MVHR system. These are two different teams, but in both cases, the experience with working with 21 degr... Voir plus
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Lisez les avis des autres
Very happy with my experience with 21 degrees - the solar panel setup is working really well for us. They were a pleasure to work with and made it easy to move through the process. The only caveat is... Voir plus
L'entreprise a répondu
Knowledgeable and keen staff. Fitting triple-glazed windows for the whole house, and they all wanted to get the job done, and didn't look for excuses when things got difficult. I would say the only t... Voir plus
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We used 21 Degrees for our heat pump installation and underfloor heating connection. They did exactly what they promised, stuck to the timelines, and met every expectation. There were a few issues... Voir plus
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À propos de l'entreprise
Écrit par l'entreprise
Our world is changing. We believe now is the time to adapt and so we're pioneering a new future. Our mission is to empower homeowners, architects, and businesses with the knowledge and technology to harness their own sustainable energy and help safeguard the planet. Whether you need a single product or the ultimate Passivhaus, your system needs to be well thought out and designed correctly. We adopt a full-circle approach to provide better performing buildings from a carbon, cost, and comfort perspective to get you the right outcome. Our specialist products and services include renewables such as solar panels and heat pumps, and energy efficient upgrades such as triple-glazed windows and doors, mechanical ventilation with heat recovery (MVHR) systems, and insulation and airtightness products.
Coordonnées de contact
Royaume-Uni
- 0808 281 5021
- info@21degrees.com
- 21degrees.com
4,4
Excellent
109 avis
A répondu à 87 % de ses avis négatifs
Répond généralement dans un délai de 48 heures
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Réponse : 21 Degrees
Thank you for the lovely feedback. We’re glad you felt well supported and that we could adapt as your needs changed.
⭕ The 21 Degrees Team
Great service call
The company has changed hands since they installed our Heat Pump in 2021, but the latest annual service was the best yet.
The engineer was helpful and friendly and made a few settings changes which will save me a few quid each year.
16 janvier 2026
Avis spontané
Réponse : 21 Degrees
Thank you for sharing this - we really appreciate you taking the time to leave a review.
It’s great to hear that your latest annual service was such a positive experience. Our engineers take real pride in not just servicing systems, but helping homeowners get the very best performance and efficiency from them, so we’re pleased those setting adjustments will make a difference for you.
Thanks again for your feedback and for continuing to trust us with your heat pump care.
⭕ The 21 Degrees Team
Replacement windows in period property
We wanted replacement doors and windows for our C17th house that would be sensitive to a character property, yet deliver very low U values (All their products are trpple glazed). We also wanted a design and install service. Having researched the market for this type of product, we decided that 21 Degrees was the only company to meet our criteria. They have been a pleasure to deal with, especially around snagging and post-sales support. If you value quality above price, this is probably the company for you.
1 mai 2025
Avis spontané
Réponse : 21 Degrees
Working on a C17th property is always a privilege, and we’re really pleased we could help you achieve the right balance between preserving character and delivering modern, low U-value performance with triple glazing. Design, installation and aftercare are all equally important to us, so it’s great to hear that our team - especially around snagging and post-sales support - made a positive impression.
We truly appreciate your trust in us and your kind words about the quality of what we do. It was a pleasure to work with you.
⭕ The 21 Degrees Team
Slow to respond - unsatisfied customer
Booked to investigate a fault on our heat pump and had a service at the same time which wasn’t cheap! The Engineer could not find a fault with the heat pump but it failed again the following day. 21 degrees took a week to respond by which time we’d lost faith in them and used someone else to diagnose and repair the heat pump which turned out to be a common and easy to diagnose issue.
I wouldn’t use them again.
4 décembre 2025
Avis spontané
Réponse : 21 Degrees
Dear Mr. Fisher,
Thank you for taking the time to leave your feedback and for sharing your experience with us. We're sorry to hear that you were disappointed with the service you received, particularly with the response time and the overall outcome.
We always aim to provide prompt and reliable support for our customers.
If you'd be open to it, we'd genuinely appreciate the opportunity to discuss this further and see if there's anything we can do to make things right.
Your feedback is appreciated,
⭕ The 21 Degrees Team.
Outstanding After Sales Service for MVHR
Outstanding after sales service, thank you! 🤩 Our MVHR unit developed an error code after a couple of years. A temperature sensor was showing as faulty. The office support team were great and Richard/Rick the engineer rang and talked us through his thoughts about what might be causing it. (A corroded wire since that side of the unit is exposed to the incoming elements.) He explained how to remove the front panel, access the sensor, check/repair the wire and generally give an internal clean up. He was spot on with his advice and I was able to get the unit back up and running without an engineer call out. He did also offer to talk us through the process in real time on the phone, if we needed it. What a total star!
14 janvier 2026
Avis spontané
Réponse : 21 Degrees
Thank you so much for the 5-star review! We're thrilled to hear that you’re back up and running.
It’s great to know that Richard’s advice hit the spot, he really is a star and we’ll be sure to pass your kind words on to him and the team.
We take a lot of pride in our after-sales support, and we’re glad we could help you resolve the sensor issue yourself without the need for a full call-out.
Thanks for choosing us for your MVHR needs!
⭕ The 21 Degrees Team.
Pete who did our service was very…
Pete who did our service was very efficient and knowledgeable. He was very thorough and left everywhere clean.
13 novembre 2025
Avis spontané
Réponse : 21 Degrees
Thank you for your review Susan!
It's great to hear that Pete delivered such efficient, knowledgeable, and thorough service, and that he left everything spotless afterwards. Our engineers take real pride in doing a proper job, so feedback like yours makes our day.
⭕ The 21 Degrees Team.
Excellent response time and service.
Response time, diagnosis and fix were excellent. Our air source heat pump decided to stop working overnight. 21 degrees provided a 1st class service and within a couple of hours of contacting them the fault was identified and fixed.
11 décembre 2025
Avis spontané
Réponse : 21 Degrees
Thank you so much for taking the time to leave such a kind and detailed review! We're delighted to hear that our team was able to get your air source heat pump back up and running so quickly.
We're grateful for your continued trust in 21 Degrees and look forward to supporting you with any future needs. If there's anything else we can assist with, please don't hesitate to get in touch.
⭕ The 21 Degrees Team.
Heat Pump and UFH
We used 21 Degrees for our heat pump installation and underfloor heating connection. They did exactly what they promised, stuck to the timelines, and met every expectation.
There were a few issues during the process absolutely normal due to the complexity of the work, but they fixed everything quickly and professionally, making the whole process stress free.
Tom, Josh, Matt, Dan, Alfie and Charlie were all brilliant — skilled, friendly, and easy to have around.
Highly recommend, and we’ll definitely use them again in the future.
15 octobre 2025
Avis spontané
Réponse : 21 Degrees
Thank you so much for taking the time to share this fantastic review. We’re delighted to hear that your heat pump installation and underfloor heating connection were completed on time and met your expectations.
With projects of this complexity, the occasional issue can happen, so it’s great to know the team resolved everything quickly and professionally, keeping the experience stress free.
Tom, Josh, Matt, Dan, Alfie and Charlie will be thrilled to hear your feedback — they’re a dedicated group and your recognition means a lot.
We really appreciate the recommendation and would be more than happy to support you again in the future. Thank you for choosing 21 Degrees!
Good but poor organisation in ordering
Windows seem very high quality but terrible organisation in the ordering process. We ended up with windows with completely different glazing bar configurations. Although this was shown on the quote it was far from obvious as each window is on a different page. 21 should really be checking and providing some elevations or even just summary picture of windows beside each other to avoid such a mistake in the future.
8 décembre 2025
Avis spontané
Réponse : 21 Degrees
Thank you for taking the time to share your feedback and for your positive comments about the quality of the windows.
We are very sorry to hear about the confusion with the glazing bar configurations and appreciate how frustrating this must have been.
Our quotations are designed to make each window as clear as possible, with window and room references alongside large scale images showing the glazing bar layout and other key specifications. This is the industry standard.
If you would be happy to discuss this further, we would welcome the opportunity to talk through what happened and see what more we can do to restore your confidence in us.
⭕ The 21 Degrees Team
A S Heatpump Service
Request for a service and prompt action a vast improvement on my previous experience of this in any of your three iterations !I pronounce your new customer service set up a resounding success! The service itself was efficiently conducted and the engineer very pleasant and helpful. Thank you.
28 novembre 2025
Avis spontané
Réponse : 21 Degrees
Dear Robin,
Thank you so much for your wonderful feedback and 5‑star rating. We’re delighted to hear that you’ve noticed such an improvement in our customer service and that the recent visit met your expectations.
It’s great to know that our new service setup is making a positive difference and that our engineer provided helpful and efficient support. Your kind words mean a lot to the whole team.
We truly appreciate your continued trust and look forward to assisting you again in the future.
⭕ The 21 Degrees Team
Expensive!
Engineer was excellent although couldn’t clean out the capsule as he doesn’t carry the seals, (so just drained the water), spent 1 hour 45 minutes checking etc. so roughly works out at £100/hour so extremely expensive for a local company! Will be looking at more competitive rates next year!
24 novembre 2025
Avis spontané
Réponse : 21 Degrees
Thank you for taking the time to share your feedback. We’re pleased to hear that you were happy with the engineer’s professionalism and thoroughness during the visit.
We’re sorry to learn that you felt the cost was high and that the engineer couldn’t complete the capsule clean on this occasion. Our engineers aim to carry the most commonly required parts, but some specialist components, such as seals, need to be ordered to ensure the correct fit and quality. We appreciate your comments and will review how we can better communicate this in the future.
Your feedback is important to us, and we hope to have the opportunity to assist you again while providing even better value next time.
⭕ The 21 Degrees Team.
A professional and friendly company
Always a great personal and professional experience. They are both knowledgeable and friendly in every aspect of the job from quotation to completion.
I would always go back for any further improvements to my green home knowing they have my best interest at heart.
15 octobre 2025
Avis spontané
Réponse : 21 Degrees
Thank you for your review!
We are thrilled to hear that you consistently have a great personal and professional experience with our team.
We appreciate your loyalty and look forward to serving you again soon.
⭕ The 21 Degrees Team.
3 phase battery install needed
3 phase battery install needed. The surveyor was excellent, went through the options, benefits and drawbacks for differing systems. Once we had decided on the Sig Energy system, the only delay was getting permissions from the relevant regulators.
Installation was trouble free and, despite being in a busy part of the house we hardly knew they were there. Had one small hiccup with a solar inverter but they stayed on site and put that right. Siting of the battery had been carefully considered by the surveyor and my fear that we would be stuck with a battery outside the front of the house did not happen as it is discreetly placed under a carport.
The control app from sig needs setting up although most of that was done in the commissioning by 21 Degrees but once set, it just gets on with it!
We have already seen savings on our electricity costs and this bodes well for the use of our new heat pumps (also 21 degrees).
A very neat and tidy job. I have no hesitation in recommending this company.
6 octobre 2025
Avis spontané
Réponse : 21 Degrees
Dear Mr. Satterford,
Thank you so much for taking the time to leave such a detailed and positive 5-star review!
It's fantastic to know that our surveyor provided a thorough consultation on the different systems, helping you feel confident in your decision to go with the Sig Energy system.
We're especially pleased that the installation was trouble-free and our team's tidiness and discretion made the process smooth.
It's great that you're already seeing savings on your electricity costs and that the system is working well alongside your new heat pumps.
Thank you again for your high recommendation. We wish you many years of energy savings!
⭕ The 21 Degrees Team
Service great, booking a little trickier than needed
Service of Heat pump was great. Once pointed at the online booking form as easy but finding that was not straight forward
1 octobre 2025
Avis spontané
Réponse : 21 Degrees
Thank you for your feedback and for taking the time to leave a review!
We appreciate your comments about the booking process, your input is very helpful.
Thanks again for choosing 21 Degrees!
⭕ The 21 Degrees Team.
thorough and efficient service
thorough and efficient service with good, technical conversations about several aspects of the system.
and we finally got the seeping joint in the airing cupboard fixed!
22 octobre 2025
Avis spontané
Réponse : 21 Degrees
Thanks so much for the great review and 5 stars!
We're happy the service was thorough and efficient, and especially glad to hear that seeping joint is finally fixed!
⭕ The 21 Degrees Team.
Knowledgeable Engineer
Knowledgeable, efficient and congenial engineer. Overall a very satisfactory experience albeit rather expensive
14 octobre 2025
Avis spontané
Réponse : 21 Degrees
Hi Martyn,
Thank you so much for taking the time to leave us a 5-star review.
We also appreciate your honest feedback on the price. We are committed to using superior-quality products and providing a level of specialist knowledge that ensures our systems are designed and installed for optimal, long-term performance and comfort.
Thank you for choosing us.
⭕ The 21 Degrees Team.
21 Degrees home Solar and Battery installation
21 Degrees recently installed solar panels and a battery system for us. The work was undertaken diligently and to a very high standard by two of the companies technicians, and the finished install looks extremely neat, and is working effectively.
The whole process from start to finish was streamlined and efficient.
Great work by everyone involved at 21 Degrees.
7 octobre 2025
Avis spontané
Réponse : 21 Degrees
Thank you so much for your kind feedback! We’re delighted to hear that you’re pleased with your new solar and battery system, and that the installation team delivered to our usual high standards. It’s great to know the system is already working effectively for you.
We really appreciate you taking the time to share your experience - we'll make sure to pass your comments on to the team.
Best wishes,
⭕ The 21 Degrees Team
Heat pump service
Richard was very thorough and professional.would like to request him next year for my service of the heat pump .He was very informative and helpful he was very knowledgeable very pleased
10 octobre 2025
Avis spontané
Réponse : 21 Degrees
Dear Diane,
Thank you so much for taking the time to leave such a wonderful review. We are delighted to hear that you were pleased with your recent heat pump service.
We'll be sure to pass your kind words on to Richard.
Best regards,
⭕ The 21 Degrees Team
Excellent trustworthy service
I already know Pete, as he was involved with much of my installation work. A great guy to deal with, very consciences, knowledgeable, experienced & takes an obvious pride in his work.
3 octobre 2025
Avis spontané
Réponse : 21 Degrees
Dear Marc,
Thank you for your generous feedback. We're so pleased to hear that your experience with Pete and the team was a positive one. Pete’s dedication, expertise, and pride in his work truly reflect the values we strive for at 21 Degrees, and it’s wonderful to see that recognised.
If we can support you further in any way, please don’t hesitate to reach out.
⭕ The 21 Degrees Team.
Having solar panels and air source heat pump fitted
Having solar panels and An air source heat pump fitted in a new house by 21 company I have to say it was well worth the investment 21 was so efficient and the electricians and plumbers were brilliant Dave and lion and Natalie have been outstanding would I recommend them most certainly 👍
10 avril 2025
Avis spontané
Réponse : 21 Degrees
Dear Michael,
Thank you so much for your kind words and thoughtful feedback. We're delighted to hear that your experience with 21 Company was a positive one, and that the installation of your solar panels and air source heat pump has proven to be a worthwhile investment.
It’s especially rewarding to know that our team made such a strong impression with their professionalism and efficiency. We’ll be sure to pass on your compliments.
If there's anything more we can do to support you in the future, please don’t hesitate to reach out.
⭕ The 21 Degrees Team
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