Annual Boiler
Service Dulwich

Professional Gas Boiler Services.
A 5 star rated, annual gas boiler service is available near you now.
Want to say thank you to Heatsy and Lee for getting my boiler back up and running. Service was quick, efficient and professional. I was kept up to date throughout. Thank you
seb N.
Brilliant service. I booked my boiler repair online, received great communication and confirmation of my appointment. I got a text telling me the engineer was on route about 30 minutes before he arrived, he kept me informed about what was going on and after I agreed the price he fixed the boiler in one visit. You really do get what you pay for, I’ll be using them again, not too soon hopefully.
Sue H.
Daniel B.
Ist annual service for gas boiler. Thorough, conscientious engineer. Clear explanations to queries.Paperwork all correct.Will certainly use again
Jon M.
Great service
H B.
Prompt, professional and excellent info
Arabella C.
Called up in the morning as my boiler wasn't working. Despite the engineers van being broken into, he still said he would come out as my 1 year old was in the house.The engineer Lee turned up on time and was a very genuine guy, very helpful and happy to answer any questions about the system.Even though he was unable to fix the problem on the visit to provide heating, he left and returned with some electric heaters for the house free of charge!Turns out I may need a new heating system too which I'll gladly get installed through this company!
Lee H.
Excellent customer care, polite and helpful engineer, clear estimate with regular updates. Would highly recommend this company-backed by British Gas guarantee on all work.
barbara H.
I would highly recommend this company to anyone. Their engineer was prompt, extremely hard-working, friendly and professional.All rubbish plus packaging for new boiler promptly taken away, leaving the area in which it was temporarily placed cleaner than it was before! A truly hassle-free experience.
Paul D.
Lee from Heatsy was brilliant, responded in quick time and alot cheaper then other major companies. Not only did he find the fault with my boiler he was able fix it quickly. Will definitely recommend to my friends
Jonathan H.
Amazing friendly, efficient service at a very fair price. I called Heatsy to supply and fit a new wireless room thermostat and heating control unit at a rental property after being quoted an extortionate amount by another company. Job was finished within 3 hours of initial call. Happy tenant and almost half the cost of what I was quoted previously. Would highly recommend.
Denise T.
Quick service even on a Saturday. Temp fix followed up by speedy full fix at a reasonable cost. Will definitely use again.
Ella M.
Lee and his team replaced our boiler and I would highly recommend Heatsy to anyone. They were professional, courteous and very punctual. Lee is very responsive to our enquiries and he explains everything clearly. Heatsy offers fantastic customer service as Lee kept checking with us to make sure everything works properly after the installation. We are very happy with their service and we’re looking forward to having Lee back next year to service our boiler.
Cecilia L.
Ivanka N.
Great customer service, very reasonably priced, clean and tidy workmanship. Recommended
Nadine T
Very helpful & friendly service, very good rates also.
Linda W.
Fantastic customer service with a range of options and fair, transparent prices. We were kept well informed at all times and the team was very polite, tidy and considerate. Even after the boiler was installed, we had a post-installation checkup to make sure all was perfect! Have had two boilers in other properties installed and this was by far a quality and fair service above all!
Karen R.
I would highly recommend Heatsy to anyone looking for a boiler service. Lee arrived promptly and carried out a thorough inspection of our boiler. He recommended a few problems that needed fixing (new flue, magnetic filter and system flush etc).I then rescheduled an appointment with Heatsy to carry out the recommended work. Lee arrived on time each day, kept me informed of his progress, he was very tidy and finished the work within the scheduled time frame. He was also very accommodating and installed a thermostat at short notice.Since the service, my boiler is working more efficiently and my home is heated in no time. They also sent me a follow up email to make sure everything was working ok. Their service was first class through out. I am a very happy customer and will definitely use them again.
Fiona C.
Great response.. Professional work.. Good communication
Andrew D.
Lee was very professional and updates on eta all the way. Quick response and boiler working like new
keith F.
Fast and efficient service. Problem diagnosed and resolved. Covid safe.
Joy E.
The engineer was punctual ,polite and efficient .
Mark B.
Mitil P.
Carried out repair relatively quickly
Mark P.
Terrie L.
The team have done really an amazing work at my house!Thank you Mr Lee.
Lina A.
Hello, I am Fadi. The team came to my house to replace the boiler. They did a wonderful and professional job for the boiler. I thank Mr. Lee for this work. We wish you continued success and progress.
Fadi A.
Was extremely helpful and explained what needed doing and was honest about what I needed to consider. Once he had finished and I messaged with an enquiry my engineer offered to come back and have a look. They sent a follow up message to ensure everything was still working and to check it was ok. Would definitely use again.
Sarah L.
Amazing service and repair, thank you Lee and team! You were professional and did a fantastic job and the repair has made a world of difference!! I can highly recommend!
Graham P.
Contacted Heatsy as they were recommended via Local Heroes website and every contact was positive - boiler was diagnosed as requiring replacement which was all carried out within days of diagnosing - Lee kept to promise to replace boiler within two days and completed the job. All relevant paper work and certificates were issued. Very impressed.
Steve H
Having had a bad experience with a well known Plumbing company who didn't deliver and really ripped me off I was recommended Heatsy by my builder and I'm so glad I was. Reliable professional and importantly honest I have used them a number of times in the past few months and service has remained consistent at all times. I'd recommend to anyone.
Liz C.
Heatsy installed a new heating system for me in Hampstead.I was particularly impressed with the survey, after 3 engineers telling me I needed a combi without asking me any questions the guy from Heatsy was the first one who asked me what me and my family needed which, it turns out was NOT a combi.We now have Vaillant boiler and water tank with an outdoor sensor, the engineer was very knowledgeable about energy efficiency and which controls would benefit us the most.I'm extremely impressed and would highly recommend.
natasha H.
See our video reviews

Annual Boiler Service in Dulwich

Yes, your boiler will need to be serviced at least every 12 months from the date of the installation. If you miss a service and your boiler is new the manufacturer will void the warranty because the appliance hasn’t been maintained properly.

Fear not, at Heatsy we take our job seriously, we understand the consequences if we do not. We are a team of trusted Gas Safe Registered boiler engineers with tons of 5 star reviews. Proudly serving Dulwich and the SE London community 24 hours a day, seven days a week.

Click here to see exactly what happens when Heatsy service your boiler


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Discover Excellence

We will always confirm your appointment before sending an engineer and book a slot that’s convenient to you. We will send you a booking

reminder, and on the day you’ll receive a text with a tracking link when the engineer is en route.

If for any reason you feel dissatisfied you won’t need to spend hours trying to contact us, shortly after the boiler service we’ll check in with you to make sure you’re happy and see if there was anything we could have done better.

We offer appointments for weekends and evenings, so even if you’re a very busy person we will be able to offer an appointment that suits you!

And, any minor faults found during the service that don’t require any replacement parts to fix will be repaired free of charge!


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During your boiler service, your engineer will check all the safety devices to make sure everything is working as it should do. We will force the appliance into various fault scenarios to make sure it properly shuts down in the event a safety issue arises.

We will check and adjust your gas valve, ensuring your boiler is performing at its optimum level and reducing the toxic gasses it produces.

As part of the boiler service we’ll check your controls and also take a sample of water from your central heating system.

We will leave you with two certificates detailing the checks we completed and our findings.

Any recommendations will be explained to you and if any further work is needed we will supply you with a quote for your consideration.

We serve all SE London areas including:

Abbey Wood, Bankside, Brockley, Charlton, Chinbrook, Crofton Park, Crystal Palace, Denmark Hill, Dulwich, Dulwich East, Eltham, Greenwich, Grove Park, Gypse Hill, Herne Hill, Hither Green, Honor Oak, Kennington, Kidbrooke, Ladywell, Lambeth, Norwood, Oval, Peckham, Rotherhithe, Selhurst, Shooters Hill, South Bank, Southwark, Surrey Quays, Thornton Heath, Vauxhal.


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Guaranteed Value

Our boiler service rates – clear and straightforward value for your money.


The Heatsy Promise

"We promise to always give 100% in our efforts to help you in your time of need, to never take advantage, overcharge or give you unnecessary advice.

Should you ever have a query about the service you have received, the price you were quoted, or the work we have completed, we promise to treat the situation with the seriousness it warrants and give you the dignity, respect, and honesty you deserve."
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How long should a boiler service take?

The time it takes to service a boiler properly will vary dramatically depending on what type of boiler you have, the age of the boiler, and the abilities of the engineer servicing your boiler. A modern condensing boiler with no faults and everything working correctly could be appropriately serviced in 45 minutes. If it needs to be taken apart, seals changed and lots of adjustments it will usually take around 90 - 120 minutes. An old back boiler behind the fire could take a couple of hours if it’s in particularly bad condition.

How much should a boiler service cost?

The average in the UK is between £80-120, but prices can vary from £50-180. So it’s worth considering what you’re getting. Some cheaper services might be little more than a safety inspection, while some at the higher end will include seal replacements and water analysis.

Is it worth getting a boiler service?

In short, yes! Many people are sceptical when it comes to the importance of an annual boiler service. Maybe they’ve had a contract with a large national company, and the engineer has been in and out in 10 minutes, or perhaps they see the engineer standing in front of the boiler, and it doesn’t look like he’s doing much. Whatever the reason for people to question the necessity of a gas boiler service, we urge you to remember this: Up to 4000 people each year are diagnosed with low-level CO poisoning, of which 200 are admitted to hospital with serious injuries and sadly, 50 people die every year from carbon monoxide poisoning. The vast majority of these are avoidable and due to poorly maintained gas appliances.

My boiler is new, does it still need an annual service?

Yes, your boiler will need to be serviced at least every 12 months from the date of the installation. If you miss a service and your boiler is new the manufacturer will void the warranty because the appliance hasn’t been maintained properly.

What Do Heatsy Do?

You know that feeling of waking up to a freezing cold house, finding out the boilers broken, and the dread of having to face an ice-cold shower on a wintry Monday morning?

Well, we fix that.

We help to make your life more comfortable by giving you a hassle free boiler service for a reasonable price with proven results that are guaranteed to last, in fact, we've got tons of 5 star reviews from our other happy customers.

All Heatsy boiler engineers have at least 5 years of experience in the heating industry.

A boiler service starts from just £80 + VAT, and if we find any minor faults during the boiler service, we’ll repair them free of charge.

If any parts are needed, we’ll often be able to save you money by offering you the option of using reconditioned parts with a 12-month guarantee from the network of suppliers we’ve built up over time, and if we complete the work, we won’t charge you for the boiler service.

We offer a 24 hours a day, seven days a week emergency boiler service to Croydon.

If you want to book your annual boiler service, contact us now on: 0207 0999 035 or

Areas of SE London we serve:

SE1, SE2, SE3, SE4, SE5, SE6, SE7, SE8, SE9, SE10, SE11, SE12, SE13, SE14, SE15, SE16, SE17, SE18, SE19, SE20, SE21, SE22, SE23, SE24, SE25, SE26, SE27, SE28

Contact us now for a quote