Endorsed by Which?

Gregor Heating

4.9

492 Reviews

Opening Hours
Today -
  • Monday 08:00–17:00
  • Tuesday 08:00–17:00
  • Wednesday 08:00–17:00
  • Thursday 08:00–17:00
  • Friday 08:00–17:00
  • Saturday - Closed
  • Sunday - Closed

Why you can trust this trader

After undergoing rigorous assessment to become endorsed, every Which? Trusted Trader agrees to our Code of Conduct. This gives consumers the reassurance that they have the best possible protection and adds an extra layer of security to ensure best practices and procedures are followed. Which? fully investigates any breaches and will take any necessary action to ensure consumer protection.

Organisations and Awards

JULY 2025
Mar 2020

About

Our goal is to be your first choice provider of heating solutions and services.

Whether you’re looking for a new boiler, a boiler service or to install a renewable technology such as a Heat Pump or Solar PV we can help. We guarantee you'll be well looked after by our friendly Customer Service Team and our FREE expert survey will ensure you make the right choice.

On-site our experienced Gas Safe registered engineers take real pride in their work and always deliver a pro service you can trust. There’s no question of cutting corners and we always arrange our work at a date and time that suits you to cause the minimum disruption.

Competitive prices and finance options are available.

Call us today on 0117 935 2400 for cost-effective heating solution and services you can trust

We're not happy until you're happy. That's our promise and the Gregor Guarantee.

What we do

  • Boiler, central heating and gas engineers

    • Boiler installation
    • Boiler servicing
    • Boiler repair
    • Radiators and central heating
    • Gas safety testing and inspection
    • Immersion Heaters
    • Power flushing
    • Underfloor heating
  • Heating contractors

    • Central heating systems (installation and servicing)
    • Oil fired heating equipment
    • Immersion Heaters
  • Renewable energy

    • Air source heat pumps
    • Ground source heat pumps
    • Solar panels
    • Solar water heating
    • Home energy analysis
    • Solar Panel Maintenance
    • Battery storage
  • Electricians

    • Electrical installations
    • Electrical repairs
    • Electrical testing services
    • Fuse boards
    • Landlord safety certificates
    • Rewiring
    • Outdoor electrical wiring
    • Electrical emergency services
  • Smart Homes

    • Home automation
  • Lighting contractors

    • Security & Emergency lighting installations
    • Emergency lighting
    • LED lighting
    • Lighting LED upgrades
    • Outdoor lighting
  • More Services

    • installation of smart heating controls
    • heating contractors

Customer reviews

Why you can trust these reviews

All reviews are verified as being genuine and a true customer of this trader.

How can we be so sure?

100% of the reviews we publish have been through our stringent moderation process.

4.9
492 reviews
Customer Service
4.9
Quality
4.9
Value
4.8
Sort by
Brilliant First Class Work.
Customer Service
Quality
Value
Following an old boiler breaking down and having no hot-water or heating, wanted a good reliable installer to provide and fit a new boiler as soon as possible for my elderly mother. Through her insurance my mother was given details of another company to complete the works. I wanted to have a look around to ensure my mother had an installation that was value for money and a company that was reliable and trustworthy. After looking at all the positive reviews for Gregor Heating on the Which Trusted Traders website it was a no brainer and by deciding to have the works completed by Gregor Heating was not disappointed. Right from the start, the experience with the whole team from the administration staff and surveyor Adam, right through to the installation team was First Class. On the day of installation the installer Craige M arrived first thing and worked through to early evening until the job was completed, even fixing a previous blockage in a radiator pipe that was not part of the works (that other private individual plumbers couldn't fix even though they charged my mother) so that radiator would work too. Craige was brilliant, he was cheerful, respectful of the Covid rules, very knowledgeable and professional in what he was doing and he got on with the job, cleanly & tidily ensuring my mother had heating and hot water again that day. I can not praise Gregor Heating enough and will definitely be recommending them. Thank you Craige & Gregor Heating for coming to my mums rescue.
Customer in North Somerset Posted on 17/02/2021 , work completed 11/02/2021
The trader replied (on 24/02/2021)
Thank you so much for leaving such a detailed review, it really helps other customers understand what to expect from our services. We are so pleased to hear you had such a positive experience with Craige. All feedback is shared with the team and very much appreciated.
Great Job - quick and efficient
Customer Service
Quality
Value
Recommended by a neighbour. Professional from the initial visit - immediate quote provided. Engineer (Ivan) turned up at the specified time (which I understand isn't always the industry norm!!) and he did a great job - very courteous and happy to provide verbal updates during the day. Overall would recommend to anyone. Great job!!
Customer in South Gloucestershire Posted on 19/02/2021 , work completed 12/02/2021
The trader replied (on 24/02/2021)
Thank you for posting your thoughts about the job and service Ivan provided. All feedback is passed onto the team which is much appreciated. Many thanks for taking the time to write this review.
Boiler installation
Customer Service
Quality
Value
Really good, from quote to finish. Very informative initial appraisal and quote. All the team were very courteous. Craig M the main installer deserves special credit. He persevered to find a solution to an awkward pre-existing pipe arrangement. We’d resigned ourselves to losing bathroom tiles at a minimum. However, Craig found a clever way around this. Also when a minor communication problem (wrong tel number on record) transpired after he’d finished he went out of his way to sort it out. Lee and John were timely and friendly too. Quote was a bit higher than others but the assured quality made it worth it.
Customer in Bristol City Posted on 24/02/2021 , work completed 20/02/2021
Thoroughly professional
Customer Service
Quality
Value
Excellent service and competitive price from Gregor Heating who provided us with a new boiler. A special mention goes to Craig who installed it - courteous, polite and professional.
Customer in Bath and North East Somerset Posted on 05/03/2021 , work completed 14/01/2021
Absolutely fantastic
Customer Service
Quality
Value
Great experience with Gregor heating. Installer (Craig) arrived on time. Friendly, helpful and arrived with electric heaters to see me through the one night without heat. He worked an extremely long day, got everything done promptly and I arrived back from work on day 2 to warm house, everything set up and the house cleaned/hoovered with the only evidence he had been there a brand new boiler. Cannot praise highly enough.
Customer in Bristol Posted on 10/03/2021 , work completed 05/03/2021
Excellent service from start to finish
Customer Service
Quality
Value
From quotation to instillation Gregor heating were professional, courteous and responsive. The quotation was comprehensive and easy to understand and during the process Adam clearly explained the various options and choices that we needed to make. The installation then went very smoothly with Craig taking genuine care to make sure the job was completed on time and to a high standard despite a some unforeseen problems with our existing plumbing.
Customer in Bath and North East Somerset Posted on 26/05/2021 , work completed 20/05/2021
The trader replied (on 16/07/2021)
We are so glad to hear that Adam and Craig were professional, courteous and responsive. We always try to do everything we can for the process to run as smoothly as possible and are pleased you are happy with the outcome. Thank you so much for taking the time to review our services.
Replaced Boiler
Customer Service
Quality
Value
Excellent service from first visit to final clear up. Craige was first class, very polite helpful and professional. The coordination of staff, equipment delivery and scrap removal was well planned. Work was carried out to time with slight changes to the plan that made the installation plan more suited to the layout of the property. Would recommend Gregor to all.
Adrian in South Gloucestershire Posted on 13/06/2021 , work completed 28/05/2021
The trader replied (on 16/07/2021)
Thank you for posting your thoughts about the job and service Craige provided. All feedback is passed onto the team which is much appreciated. Many thanks for taking the time to write this review.
New Boiler Installation
Customer Service
Quality
Value
Had a new combi boiler installed to replace my 30 year old one. Initial survey and guidance excellent. Price and terms competitive. Engineer turned up on time and from the start was highly knowledgeable and skilled. Very tidy and considerate and the few small issues he came across he consulted with me as to my options to overcome them. Done within the timescale promised and was very happy to answer all my questions regarding what was going on. Old boiler, tanks etc removed and sent to recycling. After care includes free service and plan for a year. Would very highly recommend them.
Customer in South Gloucestershire Posted on 12/07/2021 , work completed 08/07/2021
The trader replied (on 16/07/2021)
Thank you so much for leaving such a detailed review, it really helps other customers understand what to expect from our services. We are so pleased to hear you had such a positive experience.
Very satisfied with every aspect of work carried out.
Customer Service
Quality
Value
Quote was given on day Adam called to do survey. Although not the cheapest quote we received we liked the service and attitude of Adam so agreed to work being carried out by Gregor. An administration error on the date of work commencing meant Craig arrived a day earlier than we expected. This was all sorted and from then on we had absolutely no problems or cause for complaint. Craige arrived with John and in no time at all old tanks were removed repair work carried out and rubbish removed from our property. Craige was very polite and a good clean worker. He worked very hard and explained everything very well. Several engineers arrived to help Craige so the job was sorted and finished on time. Even had my stairs vacuumed. An electrician arrived to fit the Hive, he explained how it works so all good. ( I’ve yet to try it!). All paperwork arrived and we were very happy to settle our account knowing our first service is included. We later had a problem with a leak on the hot water pipe leading to our shower. We realised this was not a problem with boiler installation but on contacting Adam desperate for advice he arranged for Conner one of their engineers to call. He found the problem and he was able to stop the leak. So many thanks this service was over and above. We can highly recommend Gregor Heating from start to finish we are very happy with every aspect of our experience.
Marlene Posted on 08/08/2021 , work completed 16/07/2021
The trader replied (on 18/08/2021)
Hi Marlene, Many thanks for taking the time to leave a review. We are so pleased to hear the team went above and beyond for you. We take great pride in making sure our clients are happy. Thank you so much for leaving such a detailed review, it really helps other customers understand what to expect from our services.
Boiler installation
Customer Service
Quality
Value
From the competitive quote by Adam to the completion of the job within the estimated time. The installation was carried out to a very high standard. Conor arrived on time and covered all carpets and proceeded to discuss the procedure in a courteous and efficient manner. He overcame problems caused by our 40 year old system and obviously took great pride in his job. He kept the disturbance down to a minimum showing great care .John the builder made good the changes to the kitchen and the electrician was very efficient and patiently explained the room thermostat .On completion the . house was vacuumed and all waste removed within hours .We would not hesitate to recommend Gregor Heating to to anyone. Thank you to all the team.
Customer in South Gloucestershire Posted on 10/08/2021 , work completed 28/07/2021
The trader replied (on 18/08/2021)
Thank you so much for leaving such a detailed review, about the service Adam and Conor provided. it really helps other customers understand what to expect from our services. We are so pleased to hear you had such a positive experience and we will feedback to the team.
Fantastic customer service in a crisis!
Customer Service
Quality
Value
Gas engineer George came to repair a DIY error in which we had damaged our pipe. He was professional, calm and reassuring. His demeanor was most welcome in a stressful situation. Equally the person we spoke to on the phone was marvelous. Another fabulous experience with Gregor Heating.
Customer in Bristol City Posted on 23/08/2021 , work completed 23/08/2021
The trader replied (on 02/12/2021)
Hello and thank you for taking the time to leave a review. We have passed this feedback onto George and really appreciate your feedback.
a very happy customer!
Customer Service
Quality
Value
My family and I are extremely pleased with the recent boiler install by Gregor Heating. The whole process from site inspection to quotation to installation went without a hitch. All questions answered and no problem insurmountable. Connor, the engineer, was a pleasure to have in our home; friendly, courteous, knowledgable and professional. He arrived when he said he would and finished early! I am delighted to say that the water is now piping hot and I am very happy! I would have no hesitation in recommending this company.
Customer in Bath and North East Somerset Posted on 25/08/2021 , work completed 19/08/2021
The trader replied (on 02/12/2021)
We are so pleased that you are happy with the service you received. Thank you for leaving a review and recommending us.
Entirely Satisfied
Customer Service
Quality
Value
The chap that came to carry out the work was amazing, being a widower with no family, he went out of the way to explain everything and to carry out the work to best that he could, he also did extra things that I wouldn't have expected him to do, very nice chap, very wonderful , thank you indeed.
Which? Trusted Traders Consumer Posted on 26/08/2021 , work completed 06/08/2021
The trader replied (on 02/12/2021)
Thank you for this kind review, so glad we were able to help, it was our pleasure.
Excellent Service
Customer Service
Quality
Value
We had a new boiler fitted to replace our ancient one. Adam initially explained all of the options really well to us and was really responsive whenever we had any questions. Mark who installed the boiler for us was really professional and courteous. Everything was always left tidy and he explained the process to me clearly. All looks great, was finished on time and is working well. The electrician and builder were also really friendly and professional. Overall a really great service.
Customer in Bath and North East Somerset Posted on 13/11/2021 , work completed 20/10/2021
The trader replied (on 02/12/2021)
Lovely to hear you received a great all round service from the team. Thank you for taking the time to let us know.
Installation of new boiler, central thermostat and individual radiator thermostats.
Customer Service
Quality
Value
The Gregor team, Craig (plumber/gas engineer) Lee (electrician) and the builder were great. They were punctual, polite, friendly, hardworking, and answered all of the many questions I had. They were very professional and their work is of a very high standard. At the end of each day they made sure my property was left clean, tidy and ready for our use. They instructed me as to the use of the boiler and thermostats as necessary and left all the necessary paperwork/manuals and instructions. I recommend them.
Customer in North Somerset Posted on 21/01/2022 , work completed 13/01/2022
The trader replied (on 08/02/2022)
Thanks for providing feedback of all the people you came into contact with, it's great to be able to share this with them, and we are happy you are so pleased with the job.
Disappointment
Looking for a policy, checked Gregor website and looked okay so decided to contact them. First contact Monday seventeenth of January, mid-morning, spoke to a lady, explained the reason for my call she said "the person I need to speak to is busy, I will get her to call you. " All details given. At three thirty pm I contacted again but got the answer machine, "all our operators are busy" after a couple of minutes I left my details for a callback. Tuesday mid-afternoon I called again, spoke to same lady who said: "the lady I need to speak is busy on another call, I will get her to phone you." No contact Wednesday, or rest of week. Review being written seven days after initial contact. If they cannot respond to a basic phone call within a week, how can you trust with more serious issues? The worse thing a company can do is ignore a potential customer, especially when they promise to call back twice then don't. Obviously, I can't comment on the engineers never got that far. Since contacted another company and all sorted in fifteen mins. How simple is that?
Customer in Bristol City Posted on 24/01/2022 (Reviewer did not use service)
The trader replied (on 08/02/2022)
Thank you for your review. We apologise that your enquiry did not get answered and are disappointed this did not happen because customer service is something we take pride in. Your feedback is very useful, so thank you for leaving this. And if you do still want to speak to someone, our service manager, Marcus would be happy to take your call please call 01179582575 and select opt 1and you can be put straight through to him.
Good Service.
Customer Service
Quality
Value
Professional service. Kept informed throughout the process. Supervisor polite and interested in the work.
Customer in South Gloucestershire Posted on 02/02/2022 , work completed 28/01/2022
The trader replied (on 08/02/2022)
Thank you for taking the time to leave us a review.
Boiler and Water tank installation at Combe Lodge
Customer Service
Quality
Value
Having originally contacted Gregor Heating in early February and received a quotation for work as requested, I then accepted the quotation and paid a 50% deposit with an agreed start date of 17 March. Thereafter, the Installation engineers arrived at 7.15 am and on discovering the previously visited site and utility room installation location promptly walked off site! Over the next 4 weeks, following the departure of 2 Gregor works quotation personnel! ,who had been dealing with my work request, and zero response to several emails I eventually got through to Gregor Heating personnel whose response and knowledge of this accepted work was bordering on incompetent. After a threat of job cancellation and demand of my deposit back I was quickly contacted by a Gregor Heating manager. A short and frank exchange was had and thereafter a 3rd visit was made to the property and a start date of 25 April was agreed. The work then proceeded on time however, the Engineer did apologise on the 1st day for not having all the correct items for installation due to an order mix-up. The work was completed over 2 days as originally quoted. Finally, the epitome of the total lack of customer service shown by the company is that not once have they got my name correct on any piece of paperwork and I have told them on 4 separate occasions...this continues with the Worcester-Bosch boiler Guarantee arriving by email today with my name wrong yet again!
Customer in Norfolk Posted on 28/04/2022 , work completed 27/04/2022
The trader replied (on 24/05/2022)
Thank you for taking the time to leave some feedback & we have taken on board all your comments.
New Boiler
Customer Service
Quality
Value
The heating system in our new house was old inefficient and, frankly, a dog’s dinner. Those who came to quote huffed and puffed when they realised it was not a straightforward job. Not so Gregors and, as we had used them in our old house, we used them again. We were not disappointed. Craig, their engineer, did a great job. His installations were straight and neat and old holes filled in. Everything was left tidy and the remnants of the old system taken away before he left site. He kept us informed of progress and answered our questions, otherwise he worked without fuss. My one complaint is the Home Owner’s Gas Safety Certificate sent later. It reads as if a dangerous appliance is present. I phoned Gregors and was told that everything is fine and if we sell the house, a solicitor would know how to read the certificate; well, it will never get the Crystal Mark for plain English. Twice I have asked for a quick email for my records confirming all is fine, but over a month later still no email.
Alan Posted on 29/06/2022 , work completed 06/05/2022
The trader replied (on 27/03/2023)
Thank you very much for taking the time to leave us such positive feedback following your installation. Thank you for choosing Gregor Heating to carry out these works. Apologies for a confirmation email not being sent to you when requested. If you still require this email please contact us via enquiries@gregorheating.co.uk and we will get confirmation sent straight over to you. Gregor Heating
New Boiler Purchase & Installation
Customer Service
Quality
Value
We have a service plan with Gregor Heating & have also had a boiler from them in the past at a previous property which we were very happy with, so naturally when our old boiler needed replacing we turned to Gregor for help. They looked after us from start to finish; we had the boiler area surveyed to ensure we had a compatible boiler replacement and kept us within budget without compromising on boiler efficiency. On the day, the engineers were so kind & helpful. They did the job with care & attention with minimal disruption & nothing was too much trouble. We changed our mind on which wall controllers we wanted on the day of install - from battery operated to electric - the engineer rang the office & a member of the Gregor team drove over especially to deliver them. The job was finished on time. The engineers showed me how to operate the boiler and wall switches before they left & didn't leave until they were happy I understood the process. The day couldn't have gone any smoother. The boiler comes with a 10 year Guarantee and we have peace of mind that Gregor will be there to assist with the maintenance/should we need to call them out.
Customer in South Gloucestershire Posted on 09/10/2022 , work completed 06/10/2022
The trader replied (on 27/03/2023)
Thank you for taking the time to leave us a 5-star. It's great to receive such positive feedback and we look forward to continuing to provide you with a high level of service in the future. Gregor Heating
Thoroughly unsatisfactory
We have a new build house on an estate where Gregor Heating has been the main plumbing and heating contractor. We have had a number of snagging issues and have experienced ongoing prevarication from Gregor's tradespeople attending to address the problems. The worst is a washbasin problem for which we have had four visits to our house without a satisfactory resolution, and even following the complaints procedure has so far failed to resolve it. The manager from the estate development company supports us and agrees the problem requires fixing - perhaps the fifth attempt may bring and end to this sorry saga. It is not an isolated incident as a previous engineer attended when we reported a problem with stiff shower valves. He informed us that the problem was insufficiently serious to meet the manufacturers' threshold for a complaint. So we went direct to the manufacturers with support from the estate development company. The manufacturers' engineer came out quickly and replaced two faulty valves without question.
Customer in South Gloucestershire Posted on 15/10/2022 (Reviewer did not use service)
System overhaul
Customer Service
Quality
Value
Rob and his colleague did an excellent job in identifying problems and getting our neglected system back in order. One identified electrical fault remains but this rectification work is promised soon.
Customer in South Gloucestershire Posted on 30/10/2022 , work completed 28/10/2022
The trader replied (on 27/03/2023)
Thank you for taking the time to leave us some fantastic feedback. Our engineers always endeavour to be polite and helpful especially when entering customers’ homes. Gregor Heating
Installation of air source heat pump
Customer Service
Quality
Value
We met three key people from Gregor Heating and Renewables. They were all extremely efficient, knowledgeable and highly capable - and they were really good at their trade. The surveyor who oversaw the installation, the planner who worked out the detailed specs and applied for all the paperwork, building regulations and government grant, and the engineer who fitted it all in our home. Everyone was really friendly too and went to great lengths to explain how we control our new heating system. Gregor installed a Daikin air source heat pump, a new high pressure tank and new radiators and pipes throughout the house. We are delighted with their work and very happy with the end product.
Peter in Bristol City Posted on 07/11/2022 , work completed 28/10/2022
The trader replied (on 25/11/2022)
Thank you for taking the time to leave us a 5-star review Peter. We really appreciate the positive feedback regarding your experience of your recent renewable installation. We endeavour to keep a professional journey for all our customers from start to finish. Your comments will be passed onto our staff, and they will be commended for their efforts and professional work. Gregor Heating
Quality Boiler Service
Customer Service
Quality
Value
We had our annual boiler service today and was again impressed by the time and care taken to do a thorough service. Phil, the engineer, arrived on time and was very pleasant to deal with. He explained as necessary the tests he was undertaking, and the results obtained. All gave me great confidence that the boiler was continuing to work efficiently. Very pleased with the support provided by Gregor and recommend their services.
Customer in South Gloucestershire Posted on 30/11/2022 , work completed 30/11/2022
The trader replied (on 31/03/2023)
Thank you for taking the time to leave us such a positive review follow Phil's visit to your property. Your comments will be passed onto Phil and we look forward to continuing to provide you with a great level of service in the future. Thank you for recommending us. Gregor Heating
Outstanding service by Gregor
Customer Service
Quality
Value
We had a back boiler which we wanted to be replaced urgently. During the quotation survey Chris Cox talked us through the various options, taking into account what would work best for our house. His information was very helpful for us to understand what our options were and the works included removing the back boiler, installing a gas combi boiler, and replacing all the pipework and radiators. He also recommended a smart thermostat and I'm very grateful he did because I find myself enjoying it immensely now that I'm using it daily. Amazingly, he managed to book us in for the following week and the entire job was completed in 3 days, for which we are extremely grateful. The installers Mark and his colleagues were super friendly, professional and took great care whilst working in our home. Given the major job they had to do, I'm very impressed with how tidy they left everything.
Customer in Wiltshire Posted on 13/12/2022 , work completed 02/12/2022
The trader replied (on 31/03/2023)
Thank you for taking the time to leave us a five-star review following an installation we carried out at your property. All feedback is passed onto the team which is much appreciated. Many thanks for taking the time to write this review. Gregor Heating