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Rated 5 out of 5 stars

I recently had Gary from GN Heating Ltd carry out a boiler service and replace the expansion vessel on my hot water system, and I couldn’t be more pleased with the experience. Gary was professi... See more

Rated 5 out of 5 stars

Our 12 year old gas boiler needed servicing & we were also aware of a problem concerning the pressure. Gary identified the problem very quickly, gave us various options & we decided to have a new... See more

Rated 5 out of 5 stars

We have used Gary, GN Heating Ltd several times now & have always had excellent service & I would highly recommend them! Previously had a new boiler fitted by both Gary & Josh & that has been fault... See more

Rated 5 out of 5 stars

A leak occurred at the back of our upstairs boiler so contacted GN. Came same day and noted the problem and sent engineer shortly afterwards. After clambering into our difficult loft area he spotted t... See more

Company details

  1. Gas Installation Service
  2. Plumber
  3. Radiator Repair Service

Written by the company

We are a local company based in Worthing. We specialise in boiler repairs, servicing and installation.


Contact info

4.8

Excellent

TrustScore 5 out of 5

79 reviews

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Rated 5 out of 5 stars

Professional, Reliable & Efficient Heating Engineer

I recently had Gary from GN Heating Ltd carry out a boiler service and replace the expansion vessel on my hot water system, and I couldn’t be more pleased with the experience.

Gary was professional, punctual, and clearly very knowledgeable. He took the time to explain what needed to be done and why, which I really appreciated. The work was completed efficiently and to a very high standard, and everything was left clean and tidy afterwards.

It’s reassuring to find someone so reliable and thorough – I feel confident that my heating system is now in great shape. I wouldn’t hesitate to recommend Gary to anyone looking for honest, high-quality heating services.

Thanks again for a job well done!

3 April 2026
Unprompted review
Rated 5 out of 5 stars

Top team

I use GN Heating every year for the last 4 or 5 years for our annual boiler service. They're a fabulous, always kind, courteous, punctual and clean and tidy and very knowledgeable .

18 December 2025
Unprompted review
Rated 5 out of 5 stars

Annual boiler service

This is the third time I've used this company for a boiler service and found Gary to be very helpful and explained what was being done. Very thorough. Many thanks

10 November 2025
Unprompted review
Rated 5 out of 5 stars

Highly recommend

Gary and co helped with a new boiler and radiators, professional and friendly. Explained what was needed and why and worked around tricky issues with water supply.

1 August 2025
Unprompted review
Rated 5 out of 5 stars

GN Heating

GN Heating carried out a service and repair of two boilers. The whole experience was very satisfactory as the engineer was very knowledgeable and extremely helpful he explained everything that he was doing and needed to do. I was extremely impressed and would recommend GN Heating to everyone

19 September 2025
Unprompted review
Rated 5 out of 5 stars

Brilliant and professional service from GN Heating Ltd

These guys are absolutely brilliant and I would definitely recommend them.

I have used GN Heating Ltd for the past 4 years to install and service my boiler and central heating system.

Gary, Josh and their apprentice are the nicest and easiest people to have in your home. I am a single lady who knows nothing about plumbing or heating and I can trust that Gary will advise me and take care of my jobs to a high standard. He is very easy talk too and things are well explained ahead of the work being undertaken.

They have recently undertaken a very arduous task of finding an underfloor water leak. They were brilliant, professional and nothing is too much trouble for them.

3 April 2025
Unprompted review
Rated 5 out of 5 stars

Honest, knowledgable and good value

Gary knows his stuff, he was honest and offered me a lot of advice on how to proceed with a tricky intermittent fault. He could have installed a number of expensive parts but didn’t and helped me choose a good way forward with my issue. The work he did was good. Very pleased, would recommend and will be using again.

1 April 2025
Unprompted review
Rated 5 out of 5 stars

Excellent service

Excellent service, arrived on time and fixed the problem with my central heating would definitely use again.

10 February 2025
Unprompted review
Rated 5 out of 5 stars

Reliable and efficient

Response to initial enquiry was prompt. Work carried out efficiently and communication was excellent throughout.

31 January 2025
Unprompted review
Rated 5 out of 5 stars

Great service

Recommended by my daughter. Gary arrived on time to service my boiler. He did a great job and was happy to chat with me about problems heating my bungalow. Received invoice and certificate soon after he left. Good price too. I will definitely use GN heating again in the future.

21 January 2025
Unprompted review
Rated 5 out of 5 stars

first class service

First class service from GN Heating. Have used this company for many years and they are always reliable,friendly and professional. Clean and tidy workers,always on time have never let me down . Highly recommended

20 January 2025
Unprompted review
Rated 5 out of 5 stars

Great service from Gary

Great service from Gary. Came on very short notice to emergency call on Friday eve, solved the boiler issue with quick fix saving money and further problems. Well recommended service.

25 October 2024
Unprompted review
Rated 5 out of 5 stars

GN Heating are genuine experts

GN Heating are genuine experts. Gary and his team provide faultless support across a number of properties, servicing, fixing and providing unbiased advice for any boiler or heating issues I need. Very happy with their service, highly recommended.

23 October 2024
Unprompted review

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