ISO 9001 / ISO 14001

Excellent rating
Based on 1017 reviews

Gregor Heating Solar and battery installation Couldn't be happier with the work carried out fitting solar panels and batteries. All Gregor employees were helpful and always ready to answer questions. They arrived on time, carried out the work and cleared away all rubbish. Would definitely recommend.

17 September 2026

Outstanding thoroughness and competence.

Bill Nadel

15 September 2026

Consistently great over many years of using Gregor for my boiler service and gas safety certificate

Dan Fix

11 September 2026

Great work... Engineer was excellent, knowledgeable and friendly person. Shown patience to find the minute crack and sorted.

jaiwin george

9 September 2026

Excellent service I’ve been a customer of Gregor’s for several years - always happy with the service provided. The ladies on the telephone are always charming and helpful, and the service engineer who regularly services my boiler is extremely pleasant and professional. A great service all round!

8 September 2026

Really happy with the shower John fitted over the bath. He was on time, friendly and really knowledgeable. Did a fantastic job and we’re so pleased with the result. 10/10, would definitely recommend!

Shahnaz Bayat

4 September 2026

Air source heat pump installed. Excellent service from Gregor from start to finish.

Karen de Groot

1 September 2026

I was fortunate to have gregor heating install my solar panels, inverter and battery storage and was extremely happy with all they have done for me The design was first class and even taking into account that the equipment turned up very early ( 3rd party company) they rectified as quick as humanly possible. After that communication was excellent and engineers turned up on time and very professional. The install went brilliantly (even dealing with my dog who some could be scared of, being a big bad softie doberman). The service they provide is nothing short of exceptional that 5 stars doesn't seem enough, even providing the handover after install was brilliant. If you get the chance hire this company immediately. Again many thanks Sean

sean booker

27 August 2026

My whole experience with Gregor Heating has been excellent. From Adam visiting me to see what work I required and providing me with a very reasonable quote. To Mark fitting the new gas boiler in a very neat way in a very tight cupboard space.

Anne Tamlyn

24 August 2026

We were completely satisfied with the way Gregor handled our project to replace oil central heating with an air source heat pump. Everything, from the no fee, no commitment surveys by Ross, through to the installation by an expert and motivated team of engineers (Jim, Paul, Craig and Mark) was excellent. The work was carefully planned to minimise disturbance and was carried out very efficiently and tidily. Also the back office work of getting the Ofgem grant, DNO approval and general administration was seamless. This is a well-run organisation and one feels in safe hands.

Mark Burgess

12 August 2026

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Gregor awarded ISO 9001 Quality & ISO 14001 Environment Certification

Gregor Heating and Renewable Energy are proud to have been certified ISO 9001 Quality & ISO 14001 Environment after the successful completion of their audit and transition to the latest standards.

ISO 9001 is widely recognised as the international standard of commitment to quality. Quality or service and products is something we have always taken seriously at Gregor and we are pleased to offer this additional assurance that both our products and our services have been through robust quality-management systems giving you, our customers, added confidence in our company.

ISO 14001 takes in to consideration our commitment to environmental protection. As your renewable energy specialists, we are always quick to act on keeping our working environment up to the industry standards, we are conscious of the effect our operations may have on the environment and are delighted to show our customers, suppliers and employees our commitment to environmental protection with ISO 14001 international recognition.

Emma Fawcett Jones, UK Business Manager at Certification International says: “This is a remarkable achievement by Gregor Heating & Renewable Energy. To achieve certification to both ISO 9001:2008 and ISO 14001:2004 in such a short period of time after what was an extremely thorough audit reflects their dedication to not only their customers, service and management levels but shows they are committed to continuous improvement of their business strategies.”