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H3GS Heating & Cooling

Domestic Heating & Cooling Maintenance in London

Temperature Troubles?

Fully Accredited

Gas Safe Registered

350+ 5 Stars

Google Reviews

9.67/10 Rated

200+ Checkatrade Reviews

Fully Qualified

Gas Safe

350+ 5 Stars

Google Reviews

9.67/10 Rated

200+ Checkatrade Reviews

Local Experts

10+ Years Experience

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heating and cooling in london

What We Do

Heating & Cooling Services in London that Go Above & Beyond

H3GS Heating & Cooling is a well-established and fast-growing company with more than 15 years of experience. We prioritize connecting with our community while delivering professional and dependable services to our customers and clients.

Our Process

How To Get Started With H3GS

We want it to be as easy as possible for our customers to book in a service with us. Here’s how:

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1

Tell us about your needs

Answer a few quick questions about your home and circumstances

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2

Choose One of our Services

Select a boiler or other installation from a range of options.

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3

Pick a convenient time

Choose your preferred date and time for the installation.

What Our Customers Say

Read what some of our customers have to say about the excellent work we do.

Posted on Google Google
Andrei A profile picture
Andrei A
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Amir and his team did a great job replacing my boiler, and identified and fixed some other key safety issues with our gas flues that had not been picked up in previous gas safety inspections. Very good communication, transparent pricing and high quality work - would definitely recommend them!
Posted on Google Google
Carmen Martinez profile picture
Carmen Martinez
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Amir and Hamed made a fantastic job in my flat. I needed to replace my old vented water cylinder by a new unvented one. The espace was quite tight and I also wanted to accommodate the washing machine in the same area. They managed to fit everything! Really happy with the result and the communication. Totally recommended. Really well done job and on time.
Posted on Google Google
dave pasola profile picture
dave pasola
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
We have used H3GS to install a new boiler and also an upgrade on the gas pipe run. On both occasions they have delivered a great service within cost and time. They work hard, tidily and very respectfully of the customer and their needs. I have no hesitation in recommending them to anyone who needs heating work done. They are also very trustworthy and can be left alone in a house.
Posted on Google Google
Toby profile picture
Toby
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
H3GS have completed a few different jobs for us over the past couple of years, including sealing our heating system, servicing our boiler and replacing a motorised valve that was letting through. I can highly recommend H3GS. Amir is really friendly, professional, responsive and reliable. All of the work has been clearly explained and costed beforehand, and carried out on time and within the agreed budget. Thanks very much !!
Posted on Google Google
althea McCourt profile picture
althea McCourt
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
We appreciated H3GS’s prompt response to our urgent pipe leak. Amir quickly identified and diagnosed the problem, and the team carried out the repairs efficiently and professionally. They were also very considerate of our elderly mother who was at home during the work. We would be happy to recommend H3GS to others.
Posted on Google Google
Iulian Gelepu profile picture
Iulian Gelepu
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Very quick, efficient and professional.
Posted on Google Google
Aziz Abdul-Malik profile picture
Aziz Abdul-Malik
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I have used H3GS a few times now. For the first time, I had an emergency and they were quick to review the pictures and videos I sent them to determine what the likely issue was. I was fortunate that they were able to do the repair on the same day. I had another issue with my boiler due to a leak and they were quick to advise me about the possible issues with the boiler as well as the danger that the boiler was in due to it breaking through the floor. They were able to fix the problem within a few days as it wasn't a straightforward fix. Every time I have used them, there has always been a preliminary assessment via pictures and videos, which has helped them analyse the issue in the first instance to reduce the delay on an onsite analysis. This has meant that they have arrived at the job prepared. Amir's communication is always polite and concise and I have always received a prospective quote for the job once an onsite analysis of the problem has been done. I highly recommend them and will continue to use them for any future plumbing problems that I have.
Posted on Google Google
Felicia Samuel profile picture
Felicia Samuel
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Absolutely amazing company! We have been using them since they installed our boiler. They service our boiler annually and we have NEVER had any problems. If you want an efficient, friendly and professional service this company is the one to choose 👌🏾
Posted on Google Google
Birju Prajapati profile picture
Birju Prajapati
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Excellent comms, clear pricing, efficient work. Will definitely be using them again. Thanks guys
Posted on Google Google
Leopold Oakes profile picture
Leopold Oakes
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Fast and professional service. Will use again in the future.

Why H3GS?

Why Choose H3GS for Heating & Cooling?

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Friendly Customer Service

From the moment you get in touch, our team will be helpful and ready to answer any and every question you might have.

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Experienced Gas Safe & F-Gas Registered Engineers

Our experienced engineers have been assisting London residents with their heating, air-conditioning and plumbing systems for over 15 years.

Aiming for Long Term Efficiency

We will make sure that your system is fit for the long term, letting you get through those colder months, stress-free.

comprehensive-plumbing-services

Comprehensive Heating & Cooling Services

H3GS Heating & Cooling & Cooling are experts in professional heating and cooling solutions, providing installations, servicing and repairs across London.

Get in contact with H3GS Today.

If you are interested in any of our services, please fill out the contact form below and a member of our team will be in contact ASAP!

FAQs

What heating services do you cover?

H3GS Heating & Cooling provides a full range of plumbing and heating services across London and the South East, including boiler installations, boiler repairs, central heating installations, power flushing and routine maintenance for both residential and domestic properties.

Yes, all our heating engineers are Gas Safe registered, so you can have complete peace of mind that every job is carried out safely and to the highest standard by qualified professionals.

Absolutely. Our heating team is available for emergency repairs and boiler breakdowns, connecting you with an experienced emergency heating engineer as quickly as possible.

Yes. From new boiler installation to central heating services and annual servicing, we keep your system running efficiently, with competitive pricing and honest advice every step of the way.

Yes. H3GS Heating & Cooling & Cooling installs air-conditioning systems providing both heating and cooling for domestic properties across London.

Yes, our highly skilled engineers cover a wide range of plumbing and heating work, including leak detection and repair, hot water systems and unvented cylinders. Whether you need a local plumber for a straightforward job or a central heating engineer for a larger project, our professional team is on hand to help across London and the South East.