We called this company out after hours on a Friday to fix a faulty valve on our HIU. They charged a £200 after-hours call-out fee, which we paid, expecting the issue to be properly resolved. T... See more
Company replied
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DL Gas and maintenance have a great team and do great, professional and detailed work. We were having trouble with a very old boiler that needed replacing, they replaced it and have set up the full ne... See more
Excellent service from Donovan who really went above and beyond. Came out to repair my boiler on the day I called. He was extremely thorough, resolved the issue and also serviced the boiler eve... See more
Company replied
Brilliant experience with DL Gas & Maintenance. Donovan was incredibly thorough - he didn’t just identify the issues quickly, he made sure everything was properly sorted with real care and dedication.... See more
Company replied
Company details
Written by the company
REGISTRATION NO. 14047768 GAS SAFE NO. 920936 INSURANCE POLICY NO. LIDGO2TR01 DL Gas & Maintenance Ltd. is an independently owned family service company with a workforce of highly experienced engineers and tradespeople to support all your service and maintenance needs. Our engineers are Gas Safe registered, NICEIC, and Water Safe qualified. The services we offer include: boiler installation, boiler breakdown repair and servicing, landlord certificates/CP12, power flushing of central heating systems, radiator installation, gas fire installation and servicing, gas cooker installation and repair, gas leak investigation and reconnection to gas, plumbing, bathroom installation, and electrical services. Furthermore, for guaranteed peace of mind and satisfaction, all of our jobs come with a one-month guarantee. Thus, if we complete a job and you need to call us back within the month, you will not have to pay for the labor or the call-out fee. Our opening times are Monday to Sunday, 24 hours a day, and in urgent cases, we can promptly send an engineer to your location. Additionally, if no parts are needed, our engineers can proceed with the job immediately. If you request a quote for a job, a written estimate will be provided via email within 48 hours after one of our surveyors has visited your property, and this quote will be valid for 5 working days. Please note that a site visit allows our surveyor to assess the scope of the work, providing you with an accurate breakdown of the costs and schedule. Shop now. Pay later in 3 instalments with Klarna. *Contact us for more information
Contact info
131 Rainhill Way, E3 3EF, London, United Kingdom
- 02033702019
- Info@dlgasandmaintenance.com
- dlgasandmaintenance.com
4.4
Excellent
20 reviews
Replied to 100% of negative reviews
Typically replies within 24 hours
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My central heating is so much better…
My central heating is so much better after they carried out a power flush; and my boiler's service left no stone unturned (at no extra expense): 100% recommended
January 14, 2026
Unprompted review
DL Gas and maintenance have a great…
DL Gas and maintenance have a great team and do great, professional and detailed work. We were having trouble with a very old boiler that needed replacing, they replaced it and have set up the full new system very professionally and at a great price. They even helped us out when we decided to stop trying to fix the old boiler and replace it, by reducing some outstanding payments we owed them from repairs for the old boiler.
January 20, 2026
Unprompted review
I had a brilliant experience with DL…
I had a brilliant experience with DL gas when I found myself with a gas leak. Donovan came out promptly, troubleshooted the issue and made several solutions. He implemented the agreed re-routing to a high standard and persisted despite several unexpected obstacles. Clear communication throughout from him and manager Leysan. Would definitely recommend.
December 4, 2025
Unprompted review
Reply from DL Gas & Maintenance
Thank you so much for taking the time to leave this review, Michael.
We know that finding a gas leak can be really stressful, so we are very glad Donovan was able to attend quickly, identify the issue and complete the re-routing for you to a high standard. It’s great to hear that you felt informed throughout the job – clear communication and safety are always our priorities.
If you need any further help with your heating or gas in future, please don’t hesitate to get in touch.
Many thanks again for choosing DL Gas & Maintenance and for recommending us.
DL Gas & Maintenance Team
Unprofessional, Overpriced, and Scammy
We called this company out after hours on a Friday to fix a faulty valve on our HIU. They charged a £200 after-hours call-out fee, which we paid, expecting the issue to be properly resolved. The engineer was in the property for less than 10 minutes, did a temporary fix, and left.
By the next day, the heating failed again.
When we contacted them to come back and fix the issue they supposedly repaired, they demanded another call-out fee just to “assess” the same problem — and then quoted us £500 to fix a faulty valve.
Being charged twice for the same unresolved issue, plus an inflated repair quote, felt completely unprofessional, dishonest, and like a scam. No customer should have to pay repeatedly for a problem that was never fixed properly in the first place.
Avoid this company if you want transparent pricing, genuine repairs, or professional service.
November 13, 2025
Unprompted review
Reply from DL Gas & Maintenance
It is rather unfortunate to hear your comments describing us as (scammers), especially as we did everything possible to assist your tenant promptly and was very transparent with you regarding our out-of-hours call-out.
Ergo, allow us to provide clarity for anyone reading:
You contacted us on a Friday night requesting an urgent visit due to loss of heating. We clearly explained that the out-of-hours diagnosis fee was £200, and also advised that if you preferred to wait until the following morning, the standard £100p/h diagnosis fee would apply. You chose to proceed with the out-of-hours visit, and this was fully agreed before attendance. We will provide additional information to Trustpilot to illustrate our correspondence.
As agreed, our engineer attended the property and diagnosed the issue, identifying that both motorised valves had failed, meaning the motors no longer opened automatically.
As a temporary solution, he manually opened the valves so your tenants would have heating overnight until replacement parts could be fitted. This was fully explained over the phone at the time, and you confirmed you were happy with this temporary measure.
The next morning, the heating stopped again. As a result, the engineer video-called the tenants to check if the motorised valves were closed again, however they were still opened. In addition, during that call, we noticed the HIU cover had been removed and the tenants had been attempting to check internal components themselves. Because they are not qualified engineers and we cannot verify what was done, it was not possible to confirm remotely whether the same issue had reoccurred or whether a new fault had developed.
As with any heating or HIU system, if a new or unrelated issue presents itself, a new diagnosis is required. We also made it clear that if the problem was caused again by the motorised valves, there would be no second diagnosis fee. Any additional charge would only apply if a separate fault had developed within the HIU.
You were also provided with the price for the replacement of two motorised valves (not one), and we offered to deduct the standard £100 diagnosis fee off the final job price. Furthermore, the additional amount of £400 reflects the cost of labour for replacing both valves, not an “inflated” quote as you suggested.
We appreciate how frustrating heating issues can be, particularly when they occur outside of normal hours. However, we always act with transparency, follow industry-standard processes, and prioritise getting our customers’ systems up and running as quickly and as safely as possible.
This is reflected in the many 5-star reviews and service award we are grateful to have received. It is important to note that no one has ever been disappointed with our services much more to describe us as scammers.
Nonetheless, we are open to discuss the situation directly if you would like further clarification.
For the sake of transparency, we will also be providing our correspondence with you to Trustpilot as part of our record, to demonstrate clearly that there was no wrongdoing or “scam” involved from our side.
A huge thank you to Donovan and Leysan…
A huge thank you to Donovan and Leysan who replaced our boiler! We had Donovan over a few weeks ago to fix a leak and we discovered that our boiler was a goner and needed replacing. Donovan did a heating survey and we then walked through best options for our house, then we got everything started! Donovan is such a lovely person and not only ensured that we understood the best option to go with, but also gave us valuable advice on efficient, cost-effective heating. Leyson was very highly organised and made sure that the process was moved along at a good pace. Thank you so much, Donovan and Leysan, we will definitely be seeing you again!
October 24, 2025
Unprompted review
Reply from DL Gas & Maintenance
Thank you so much, Lily, for your lovely and detailed feedback. We’re delighted to hear that you’re happy with your new boiler installation and the overall experience. We take great pride in delivering clear communication, expert advice, and smooth coordination from start to finish.
It was a pleasure carrying out your boiler installation in the N15 area, and we’re so pleased to know you found our service efficient and helpful. If you ever need any repairs, or plumbing and gas work in your area, please don’t hesitate to reach out — we’ll be happy to assist again anytime.
Warm regards,
DL Gas & Maintenance Ltd
Boiler issues
The engineer- Donavan who came to fix the boiler did an amazing job! Very happy with the whole work and he explained and educated us about the work. Cooperated really well and did the work within time.
Also DL gas is an amazing company to get your job done. They keep constant communication and try to sort out your problem as soon as they can.
Would highly recommend them!
October 23, 2025
Unprompted review
Reply from DL Gas & Maintenance
Dear Anjali — thank you so much for the 5⭐ review! We’re really glad the fault was fixed on time and that our updates were helpful throughout. I’ll pass your feedback to the engineer and the office team — it means a lot to us.
If you ever need anything again — boiler repairs, annual servicing, or a brand-new installation — or any gas or general plumbing work in East London, South-East London, or Dartford, please contact DL Gas & Maintenance. Our fully certified Gas Safe engineers are happy to help and advise on the best solution for your home.
DL Gas & Maintenance Team
Excellent service from Donovan who…
Excellent service from Donovan who really went above and beyond. Came out to repair my boiler on the day I called. He was extremely thorough, resolved the issue and also serviced the boiler even though British Gas had carried out a service a month ago.
Highlighted a further issue which needed resolving at a later date.
He kept me informed regarding the time he was due to arrive and answered messages promptly.
He was friendly, courteous.
He made sure everything was working before leaving.
Donovan was recommended to me and I would have no hesitation doing the same.
October 21, 2025
Unprompted review
Reply from DL Gas & Maintenance
Hi Heidi — thank you so much for taking the time to share your detailed review and for recognising Donovan’s hard work! We’re really pleased to hear that he was able to attend promptly, resolve the issue, and ensure your boiler was running perfectly before leaving. We’ll be sure to pass your kind words on to him and the rest of the team.
If you ever need any help again — whether it’s boiler repairs, annual servicing, or a new installation — or any gas or plumbing-related work across South-East London, please don’t hesitate to contact DL Gas & Maintenance. We’re always happy to help and provide reliable, professional service.
Thank you again for recommending us!
DL Gas & Maintenance Team
My sincere thanks to Donovan Johnson
I’d like to extend my sincere thanks to Donovan Johnson for his outstanding service during a recent gas maintenance visit. Donovan is passionate about his work and went above and beyond to identify the root cause of a boiler heating issue, resolving it efficiently and with great professionalism. His attention to detail and the clarity with which he shared his findings were truly appreciated, reflecting a high standard of service.
Additionally, I want to acknowledge Leysan for excellent coordination throughout the process. Leysan was clear and consistent communication at every stage ensured everything ran smoothly, and made the experience seamless from start to finish.
Exceptional work from both—thank you! Will definitely recommend your company in the neighbourhood and will be in touch for other maintenance works.
May 21, 2025
Unprompted review
Reply from DL Gas & Maintenance
Thank you so much for your kind words, Mangesh. We truly appreciate you taking the time to share your experience. Donovan and Leysan will be delighted to hear your feedback — they both take great pride in delivering reliable, professional service and ensuring every customer feels well looked after.
If you ever need any boiler repairs, servicing, or a new installation, or any gas or plumbing work across East London, South East London or Dartford, please don’t hesitate to contact DL Gas & Maintenance. We’ll be happy to assist again anytime.
Warm regards,
DL Gas & Maintenance Team
Brilliant experience
Brilliant experience with DL Gas & Maintenance. Donovan was incredibly thorough - he didn’t just identify the issues quickly, he made sure everything was properly sorted with real care and dedication. You could tell he takes real pride in his work. Leysan was fantastic too - efficient, kind and kept everything running smoothly behind the scenes. A genuinely trustworthy and professional team. Wouldn’t hesitate to recommend them.
April 9, 2025
Reply from DL Gas & Maintenance
Reply from DL Gas & Maintenance Ltd:
Thank you so much, Martina, for sharing your kind words! We’re delighted to hear that you had such a positive experience with Donovan and Leysan. We take great pride in providing a thorough, reliable, and friendly service from start to finish, and your feedback truly means a lot to our team.
If you ever need any boiler repairs, servicing, new installations, or any plumbing and gas work in East London, South East London, or Dartford, please don’t hesitate to contact DL Gas & Maintenance — we’ll be happy to help again anytime.
Warm regards,
DL Gas & Maintenance Team
A highly recommended company
A highly recommended company. The person that they sent to fix our boiler was very knowledgeable, kind & helpful person. He showed us what was the problem and how they were going to fix it. They made us feel that we were in good hands.
March 27, 2025
Unprompted review
Reply from DL Gas & Maintenance
Thank you so much, Louie, for your kind words and for taking the time to share your experience. We’re really glad to hear that our engineer was able to clearly explain the issue and carry out the repair efficiently — making you feel confident and in safe hands is exactly what we aim for.
If you ever need any boiler repairs, servicing, new installations, or any plumbing or gas work in East London, South East London, or Dartford, please don’t hesitate to get in touch with DL Gas & Maintenance — we’d be happy to help again anytime.
Warm regards,
DL Gas & Maintenance Team
Gas engineer
On time. Very professional. Kept us informed at every stage of the work. Very experienced. Polite. Would have no hesitation in recommending this company.
February 13, 2025
Unprompted review
Reply from DL Gas & Maintenance
Thank you so much, Elizabeth, for your lovely feedback. We’re really pleased to hear that you found our service professional and well-communicated throughout — keeping our customers informed and confident at every stage is always our priority.
If you ever need any boiler repairs, servicing, installations, or plumbing and gas work in East London, South East London, or Dartford, please don’t hesitate to get in touch. We’d be happy to assist again anytime.
Warm regards,
DL Gas & Maintenance Team
Incredible service from a trustworthy, professional and friendly company!
Highly recommend DL Gas & Maintenance! Donovan installed a new boiler at our flat in January 2025 and the entire process from quote to install was flawless. Everything was explained to help us understand the install, and the communication and service we received was 10/10. Go no further if you’re looking for a quality company and incredible service. Leysan was very helpful in organising invoices and communicating the processes, and the boiler and system clean out has left our house warm and energy efficient! If you are looking for a trustworthy, highly skilled, professional company for your next job - look no further!
January 20, 2025
Unprompted review
Reply from DL Gas & Maintenance
Thank you so much, Liam, for your detailed and thoughtful feedback. We’re delighted to hear that you were happy with your new boiler installation and the overall service from start to finish. Donovan and Leysan both take great pride in ensuring every customer receives clear communication, efficient workmanship, and reliable results — so it’s truly rewarding to hear your kind words.
If you ever need any boiler servicing, repairs, or plumbing and gas work in East London, South East London, or Dartford, please don’t hesitate to contact DL Gas & Maintenance. We’ll be happy to assist again anytime.
Warm regards,
DL Gas & Maintenance Team
Donovan was incredibly helpful and…
Donovan was incredibly helpful and kind! They were quick to respond and came promptly to fix the issue. I would definitely recommend them!
January 21, 2025
Unprompted review
Reply from DL Gas & Maintenance
Dear Sigrid,
Thank you so much for your lovely feedback! We’re so glad Donovan could assist you promptly and resolve the leak the same day. Providing quick and reliable service is always our priority, and it’s wonderful to know you were happy with the experience.
If you ever need help with plumbing, boiler servicing, or any maintenance work in Bow, E3, please don’t hesitate to reach out. We’re always here to help!
Best regards,
DL Gas & Maintenance Team
V good service
V good service. Hard working. Good communication throughout. Delivered the right results on time and on budget
January 17, 2025
Unprompted review
Reply from DL Gas & Maintenance
Here’s a reply you can use for Orla’s comment:
Dear Orla,
Thank you so much for your kind words! We’re delighted to hear you were pleased with our service and the results we delivered. Your feedback means a lot to us, and it’s great to know our communication and dedication made a positive impression.
If you ever need our assistance again, we’re here and ready to help with any future projects or maintenance needs.
Best regards,
DL Gas & Maintenance Team
Fantastic service on my new boiler…
Fantastic service on my new boiler installation very quick and responsive , Donavan is fantastic he is so professional he made a very difficult situation easier . No mess . Would highly recommend.
December 6, 2024
Unprompted review
Reply from DL Gas & Maintenance
Dear Michelle,
Thank you so much for your kind words and fantastic review! We’re thrilled to hear that you were happy with your new boiler installation and Donovan’s professional service. We’ll be sure to pass on your compliments to him!
We’re here for you 24/7, offering a full range of maintenance services, including gas-safe engineers, plumbers, electricians, and more in Bow, E3 and around East London, thus you can always count on us.
If you ever need assistance in the future, don’t hesitate to reach out!
Best regards,
Leysan
DL Gas & Maintenance
It's been a real pleasure to do…
It's been a real pleasure to do business with DL Gas & Maintenance Ltd.
They are truly one of the best companies.
East London's finest ✨
November 18, 2024
Unprompted review
Reply from DL Gas & Maintenance
Dear Maya,
Thank you for your wonderful review! It was truly a pleasure working with you on our recent construction project in North London. We’re so glad to see everything come together successfully.
If you ever require maintenance engineers—whether it’s gas and heating engineers, plumbers, electricians, or more—we’d be delighted to collaborate with you again. Our team is here to support projects across London and Dartford, so don’t hesitate to reach out anytime!
Looking forward to working together again in the future.
Best regards,
Leysan
DL Gas & Maintenance
So lucky to have such wonderful professionals in our area
Extremely reliable and came through for us in an emergency.
We had a contractors mishap which meant that our gas had to be capped off on the same day, we contacted Don and he was with us within a couple of hours. He did a fantastic job, very diligent, thorough and was also kind enough to talk us curious selves through the process! He also did a full boiler service check for us at the same time which was amazing!
Would recommend in a heartbeat! So lucky to have such wonderful professionals in our area!
October 20, 2023
Unprompted review
Reply from DL Gas & Maintenance
Dear Sabina,
Thank you so much for your thoughtful and detailed review! We’re so glad we could be there for you during your emergency and are delighted to hear that you were happy with the service Donovan provided.
We’re incredibly lucky to have such fantastic clients like you in our community! If you ever need assistance again—whether it’s gas, heating, or a full boiler service—you can always count on us.
Thank you for recommending us in a heartbeat, and we look forward to helping you again in the future!
Best regards,
Leysan
The DL Gas & Maintenance
We had a new boiler fitted by DL Gas…
We had a new boiler fitted by DL Gas Services and the job was carried out by Dean on Saturday morning in a thoroughly professional and efficient manner . The boiler works brilliantly ,fitting carried out with minimum fuss and no mess .
I thoroughly recommend this company .
July 8, 2023
Unprompted review
I would like to say that I've just had…
I would like to say that I've just had a complete central heating system installed by DL Gas and Maintenance. I cannot praise them enough. I dreaded it being done, but it was great. Donovan went above and beyond to help me find the perfect radiators. Donovan was polite, courteous and very knowledgeable.
I would like to say what a splendid service I received, I had no hot water and Donovan visited very quickly, an efficient job was carried out, Donovan is very knowledgeable on all gas appliances and carried out a complete overhaul to my gas fire aswell.
I would not hesitate to recommend DL Gas and Maintenance to anyone.
Irene Bonell
March 18, 2023
Unprompted review
Reply from DL Gas & Maintenance
Dear Irene,
Thank you so much for your amazing review! We’re thrilled to hear that you’re happy with your new central heating system and the service Donovan provided. It’s always our goal to make potentially stressful projects as smooth as possible, and we’re delighted that we could exceed your expectations.
Donovan’s dedication to helping you find the perfect radiators and ensuring everything was done efficiently reflects the care we aim to bring to every job. From resolving your hot water issue to the complete overhaul of your gas fire, we’re so glad we could assist you.
Your kind words and recommendation mean so much to us, and we’re here whenever you need us for any maintenance services including gas engineers, plumbers or electricians in the future in Eltham, South-East London.
Best regards,
Leysan
The DL Gas & Maintenance
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