Endorsed by Which?

GLM Gas & Plumbing

5.0

75 Reviews

Opening Hours
Today - 08:30–17:00
  • Monday 08:30–17:00
  • Tuesday 08:30–17:00
  • Wednesday 08:30–17:00
  • Thursday 08:30–17:00
  • Friday 08:30–17:00
  • Saturday - Closed
  • Sunday - Closed

About

We are a reliable , trustworthy, friendly local company priding ourselves on customer service and satisfaction , with 18 years experience in the industry we ensure the highest quality service to each and every one of our customers. We are proud to be a Which?Trusted Trader and Verified by Expert Trades to ensure our customers always receive the highest level of service.

What we do

  • Boiler, central heating and gas engineers

    • Boiler installation
    • Boiler repair
    • Boiler servicing
    • Radiators and central heating
    • Power flushing
    • Gas cooker installation
    • Gas emergencies
    • Gas safety testing and inspection

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.

5.0
75 reviews
Customer Service
5.0
Quality
5.0
Value
5.0
Sort by
Outstanding service - new Boiler & Radiators
Customer Service
Quality
Value
Worth every penny! From the initial survey to the installation and commissioning, the whole operation was a great experience. Both Gary and Aiden were meticulous in the removal of the old boiler and radiators, and also, the fitting of the new ones. The electrician used was timely and professional too - all in all, a very slick unit. Great price, 10-year warranty, and ongoing support! Why use British Gas and the other big boys when you have experienced local trades? Without a doubt, please use these guys.
Customer in Cheshire West and Chester Posted on 08/07/2025 , work completed 04/07/2025
Boiler replacement
Customer Service
Quality
Value
Can highly recommend GLM. The work to replace my boiler was done to a very high standard, they were very efficient and the work was excellent. They took time to explain the controls and made sure I was confident in using the heating but also assured me I could contact them anytime. A great company and great guys.
Customer in Flintshire Posted on 29/05/2025 , work completed 29/05/2025
New Worcester Bosch Boiler Installation
Customer Service
Quality
Value
Gary and Aiden, have just updated our boiler to a new Worcester Bosch. They arrived at the time they specified, completed the work in the day in a very professional and clean manner leaving no mess. Gary explained the system very comprehensively and clearly (to two Luddites!). The guys are friendly and comfortable to talk to and give a real sense of knowing what they are doing. We would highly recommend them to anyone needing a new boiler - or other gas work.
Customer in Cheshire West and Chester Posted on 20/05/2025 , work completed 19/05/2025
Excellent service
Customer Service
Quality
Value
If you are looking for reliable, trustworthy and efficient plumbers, look no further than Gary and Aiden. They are always so helpful, friendly and contactable, service is always 150%. They always go and above and beyond and all at a great price. As a family we have all used GLM and the level of service has never been short of excellent! Thank you so much guys!
Customer in Flintshire Posted on 10/04/2025 , work completed 01/03/2025
Gas central heating installation
Customer Service
Quality
Value
Gary & Aiden are exceptional professionals. They always arrive on time. Work was carried out in a clean & tidy manner. They are very polite. We couldn’t be happier with the work they have completed. Highly recommended.
Customer in Flintshire Posted on 26/02/2025 , work completed 25/02/2025
Boiler and radiators replaced
Customer Service
Quality
Value
Gary replaced my boiler and radiators, he did a fantastic job, no mess very professional, they were a lovely couple of lads and highly recommend them, I have used them at my old house and he was that good that's why I used him at my new house. Brilliant job I highly recommend these guys.
Customer in Flintshire Posted on 13/12/2024 , work completed 09/12/2024
Excellent company
Customer Service
Quality
Value
The great reviews I have seen on the internet about this company checked out 100%. I was very happy with the standard of work to install my new boiler. Gary and his collegue Aiden got on with the job with no fuss, bother or excess noise. A radiator was moved where I wanted it, which prevented excess exterior pipework . They were very patient with me when explaining the new thermostat/ controller. Great job all around and I hope they’re around to assist with servicing and repairs in the future.
Customer in Cheshire West and Chester Posted on 04/12/2024 , work completed 07/11/2024
Great
Customer Service
Quality
Value
Gary and Adrian replaced our old boiler with a new combi-boiler. They were very busy but managed to fit us in. They were very friendly and polite, updated us on what they were doing and how long it was likely to take, and gave us guidance on how to set up and use the new thermostat. They did a really good job and took great care to make sure everything was done to a high standard. We were really pleased with the service and would definitely use this company again.
Customer in Cheshire West and Chester Posted on 08/11/2024 , work completed 01/11/2024
Great job completed in record time!
Customer Service
Quality
Value
I had a new boiler fitted in a more accessible position and the old boiler removed. The work was completed in just over a day and the house was left clean and tidy when they finished. Gary and his co-worker were extremely friendly, polite and helpful. I would definitely use Gary again and I would have no hesitation in recommending his service. Thank you for an excellent service from start to finish!
Customer in Flintshire Posted on 27/10/2024 , work completed 04/10/2024
New heating system.
A new boiler was installed with the old system requiring removal and disposal. All work was completed over a couple of days with minimal disruption and the house was left clean and tidy. My wife and I are very pleased with the work done and the price quoted/paid. Gary and his co-worker were very polite and friendly. We would highly recommend this company should anyone in the area need heating and plumbing work in their homes.
Customer in Flintshire Posted on 20/10/2024 (Reviewer did not use service)
Outstanding tradesman! Fully reccomend
Customer Service
Quality
Value
Gary has been absolutely brilliant from the moment we booked him in. He went above and beyond to move the instal date forward to accommodate us. He did a fantastic job, was very tidy and completed the job to perfection. I will be using Gary for any work like this in the future and fully reccomend.
Customer in Flintshire Posted on 13/10/2024 , work completed 12/10/2024
Wonderful job
Customer Service
Quality
Value
First time my wife and I have used GLM Gas and Plumbing Gary arrived and carried out our work we had a Worcester gas boiler and 3 Radiators fitted did a wonderful job. Nothing was too much trouble. Gary is a lovely guy friendly and polite, he Cleaned up what mess there was when he had finished. Gary Does a professional job to a very high standard and has very competitive prices. Would highly recommend. We Will be using his services in the future.
Customer in Flintshire Posted on 25/07/2024 , work completed 24/07/2024
Excellent work, very happy
Customer Service
Quality
Value
Very happy with my new boiler. The installation was done very efficiently and professionally. Would highly recommend
Customer in Cheshire West and Chester Posted on 17/07/2024 , work completed 11/07/2024
Combi boiler installation
Customer Service
Quality
Value
Gary from GLM Gas & Plumbing was a delight to deal with, polite and courteous from the very beginning until completion with great communication. Good, sound professional advice from the beginning to end. Prompt and professional workmanship leaving a clean and tidy workspace.
Customer in Flintshire Posted on 05/06/2024 , work completed 04/06/2024
Combi boiler replacement.
Customer Service
Quality
Value
Gary from GLM Gas & Plumbing from the very start was a delight to deal with, very professional and courteous offering sound advice in every respect. Easy and prompt communication, nothing too much trouble. The actual installation was swift and trouble free leaving a clean and tidy work place. I have no hesitation in recommending GLM Gas & Plumbing.
Customer in Flintshire Posted on 05/06/2024 , work completed 04/06/2024
Excellent
Customer Service
Quality
Value
Really impressed with GLM. Suppled and fitted a new boiler and designer radiators all down stairs which are gorgeous. Removed the old tank with zero mess left behind. Really impressed with the time scale of things, great communication and really fair price. Gary went the extra mile and sorted some gas pipes out in my kitchen Reno and is coming back to fit my new hob which wasn’t part of the price so thank you very much Gary. I will definitely recommend GLM. Thank you
Customer in Posted on 11/05/2024 , work completed 07/03/2024
Excellent job! emergency boiler change
Customer Service
Quality
Value
Needed a Plumber in an emergency as the boiler had broken down leaving my Uncle without heating and hot water. Spoke to Gary and he said he would be able to call later that day to look at the job and do us a quote. We decided to go ahead having a Worcester Bosch Combi Boiler. Gary and Aidan are really professional super hardworking and have done a brilliant job. It’s nice to be able to recommend a company that is local to us who really care about their customers. First class!
Customer in Flintshire Posted on 11/04/2024 , work completed 10/04/2024
Would recommend GLM to anyone
Customer Service
Quality
Value
Gary responded quickly to my initial enquiry and was able to pop round to quote for the work required. We wanted to get rid of our old boiler and tank, and replace with a combi system. Gary provided a few options suitable and quoted for all options that same day. We booked Gary in for his next available time which was a couple of weeks later. Gary and Aiden were prompt, efficient, very reasonable with pricing and extremely tidy. Gary kept us up to date as the job went on and took time to give us a tutorial following completion of the install. Other gas engineers wanted to charge us for moving the boiler to the loft and provide a new hive. Gary did none of this. He was able to put the new boiler where we wanted it and use our existing hive. Thanks again!
Customer in Flintshire Posted on 24/02/2024 , work completed 20/02/2024
First class company and a top quality job
Customer Service
Quality
Value
GLM gave a very competitive quote for a top quality Worcester boiler. They were flexible with the fitting date to suit us and also really helpful in siting the boiler to make best use of the space we had available. Both fitters were polite, friendly and obviously experts in their field. After many years of having to chase gas fitters for appointments, this firm turned up when they said they would, carried out the work agreed and charged exactly what they quoted. They also carried out some additional work which materialised once the fitting got under way but never charged an additional premium for this. Give them a call, you won’t regret it.
Customer in Flintshire Posted on 05/02/2024 , work completed 31/01/2024
Emergency boiler change
Customer Service
Quality
Value
My boiler overheated a few days before Christmas and it wasn't under warranty with the manufacturer,I called Gary at glm and told him what had happened. Lucky he was able to call the next morning to have a look and arranged to come the following day to replace my boiler. All the work was carried out to a exceptionally high standard all the mess was cleared up and it was done in a few hours ,can't thank and recommend glm enough
Customer in Flintshire Posted on 06/01/2024 , work completed 21/12/2023
New Worcester Boiler Fit
Customer Service
Quality
Value
Gary contacted me promptly and professionally within 24 hours of me submitting my first enquiry directly to Worcester. He explained that he could not visit immediately but after I sent him photos he prepared a competitive quote and suggested that because my existing boiler had completely failed, he could replace it within 48 hours. I sought other quotes but Gary seemed on the ball, friendly and professional so I went ahead. He and his colleague visited on the day agreed (and bang on the start time agreed) and the new boiler was installed in place of the old one by the end of the day. Both Gary and his colleague were hard working, clean and tidy and came up with various fitting solutions for vents and drains which were a great improvement over my last boiler. I have no hesitation in giving GLM a five star reference and look forward to offering even more tea when they visit at service time !! :)
Customer in Flintshire Posted on 07/12/2023 , work completed 05/12/2023
Replacement of Worcester Bosch Boiler
Having recently moved to North Wales and having problems with the existing boiler, I looked on the internet for a Worcester Accredited Installer and found GLM Boilers & Plumbers - what a great find! I phoned them and Gary and his assistant installed a new Worcester Bosch boiler in a different position, which wasn’t an easy task. Gary is very professional both with his work and communication. Nothing is too much trouble for him. Gary and his assistant worked as a great team and removed old boiler etc. and left the place very clean. They are very polite and considerate and I highly recommend them.
Customer in Flintshire Posted on 04/12/2023 (Reviewer did not use service)
Tradesman you can trust
Customer Service
Quality
Value
Removed old boiler system and replaced with a combi boiler. Needed the work doing at short notice - he said he'd try to achieve it by the date and was true to his word. Polite, good communication and excellent pipe work.
Customer in Flintshire Posted on 29/10/2023 , work completed 14/10/2023
New Worcester combi boiler
Customer Service
Quality
Value
I would highly recommend GLM heating and plumbing, from quoting to replacing our old boiler. Gary and his apprentice were polite and friendly but very professional. The kept their mess to a minimum and tidied up when the job was finished. Gary explained how the boiler controller worked and helped set it up. Excellent job done couldn’t fault anything and would highly recommend.
Customer in Flintshire Posted on 17/10/2023 , work completed 10/10/2023
Worcester boiler replacement
Customer Service
Quality
Value
GLM replaced our existing boiler for a new Worcester model. The whole process was excellent, from selecting the correct model, quoting, installation, and follow up aftercare. Gary and Aiden are reliable, genuine hard-workers, they worked the installation around our schedule to minimise the impact to us, and the end product is excellent. I would highly recommend GLM services.
Customer in Flintshire Posted on 17/10/2023 , work completed 05/10/2023