Pool boiler replacement, service and repair, plus maintenance and system upgrades
Pool plant is its own discipline. The boiler, the heat exchanger, the circulation pumps, the filtration, and the controls all have to work together to hold a pool at temperature efficiently, and a fault in one shows up across the whole system. Pool heating is an area David has been hands-on with for years, and one Comfort Heating Wimbledon is steadily doing more of across Surrey and South London.
We replace and upgrade gas pool boilers, service existing plant, and track down faults on systems that are not holding heat or not firing at all. Where an older setup is costing a fortune to run, we talk through the options for a more efficient boiler or a better-matched heat exchanger rather than patching the same problem each season.
Pool maintenance and system upgrades round out the service. That covers the pipework, valves, pumps, and filtration around the plant room, along with the controls that tie it all together. Everything on the gas side is carried out by a Gas Safe registered engineer and left properly tested.
Every pool job starts with a free site survey and a written quote, because no two plant rooms are the same. Tell us what the pool is doing now and what you want it to do, and we set out the work and the cost clearly before anything starts.
Andy
David is always my first port of call for any plumbing and heating queries, installations and maintenance. He's worked on 5 residential properties for me over the last 10 years. I trust him implicitly and wouldn't hesitate to recommend him to anyone.
Cathryn O'Hare
David has regularly carried out all of our plumbing and heating work over the past 14 years and has also fitted new bathrooms for us. He always attends as quickly as he can, is very knowledgeable, trustworthy and helpful - we'd highly recommend him
Amanda Crowson
Used several times, including fitting brand-new boilers more than once on different properties. Very reliable, very knowledgeable and would thoroughly recommend.
Charlotte Duff
We've used David Oliver for all our plumbing needs over the years - he's very knowledgeable, reliable, and trustworthy. Highly recommended!
Sonia Higgs
David Oliver is our go-to plumber. He installed our new boiler and handles all the plumbing work around our home. He works cleanly and leaves everything tidy, and his communication is excellent—so we always know exactly what to expect, with no surprises. We wouldn’t use anyone else.
Paula Sim
Very happy with the work done. I had a new boiler installed and David did a quick and tidy job. The new boiler is so much better and more energy efficient. David took the time to explain all the updated features. Can’t recommend him enough!
Emma Wilson
David is smart, responsive and proactive. I have used him for a number of years for various plumbing and boiler issues. Wouldn't hesitate to recommend.
Melanie Sheen
I used Dave to replace my boiler. He was very responsive and did an excellent job. Would definitely recommend this company.
Sabah Ali
I have known David for many years now .He is brilliant & very knowledgeable. No job is too small or big & always makes time in an emergency .İ use David both for my GP surgery work place & home . I would highly recommend David to anyone 👍 farina
We cover Wimbledon, Richmond, Clapham, Cobham, Epsom, Weybridge, Kingston, Dorking, and the surrounding Surrey and South London areas. If you are nearby and unsure, give us a call on 07947 336 802 and we will confirm whether your postcode is on our regular round.
David Oliver has been working on heating and plumbing systems across South London and Surrey for over twenty years, starting in the building trade at fourteen. Comfort Heating Wimbledon is the trading name he runs the business under today, and he attends every job personally.
Yes. We are Gas Safe registered, which is the UK legal requirement for any work on gas appliances. Each engineer carries a Gas Safe ID card you can ask to see at the door, and we keep our registration current on every category we work in.
Standard hours are Monday to Saturday, 08:00 to 18:00. We are closed on Sundays and we do not run a 24-hour service, but we do prioritise heating and hot-water emergencies during normal hours where the diary allows.
Yes. Boiler installations and any planned heating work are quoted free with no obligation. Call us on 07947 336 802 or send your details through the quote form and we will come back with a clear written price.
We accept bank transfer, debit and credit cards, and cash. Payment is taken on completion for repairs and small jobs. Larger installations are split into a deposit on booking, a stage payment when the job starts, and the balance on commissioning.
Boiler installations sit between £2,500 and £4,500 plus VAT. A straight combi-for-combi swap is usually £2,500 to £3,500 plus VAT. System upgrades, conventional swaps, and homes with poor existing pipework are quoted at the higher end. Every quote is fixed in writing before any work starts.
A like-for-like combi swap normally takes one full working day. A first-time combi conversion or a full system upgrade typically takes two to three days. We confirm the timeline in the written quote so you can plan around the work.
We install all the major UK brands including Worcester Bosch, Vaillant, Baxi, Ideal, and Glow-worm. The right choice depends on the warranty length you want, the size of the property, and your budget. We talk you through the trade-offs as part of the quote.
Yes. Removal of the old unit, the cylinder where relevant, and any redundant pipework is included as part of the installation price. Everything is taken away for safe disposal so you do not need to organise a separate collection.
All new boilers come with a manufacturer-backed warranty. Length depends on the model and brand, with most landing between five and twelve years on parts and labour. We register the warranty in your name on the day of commissioning.
We do not run a finance plan in-house. We keep our pricing competitive and our quotes fixed, and we are happy to stage payments across the install for larger projects. A few customers also use a 0 percent purchase credit card from their own bank for short-term spreading.
Repairs run from £100 to £500 plus VAT depending on the fault and the part involved. Common faults like a faulty diverter or a leaking pump usually sit at the lower end. We diagnose first, then quote in writing before fitting any new parts.
In most cases yes. We carry common spares for Worcester, Vaillant, Baxi, and Ideal in the van. If the fault needs a manufacturer-specific part, we order it the same day and book a return visit as soon as the part lands, which is normally within 24 to 48 hours.
There is a call-out fee that covers the engineer's time on site for the diagnosis. If you choose to go ahead with the repair, the call-out is rolled into the final repair price. If the repair is uneconomic and you decide not to proceed, only the call-out is charged.
We work on every major UK brand including Worcester Bosch, Vaillant, Baxi, Ideal, Glow-worm, Potterton, and Vokera. If your boiler is something rarer, give us a call before booking and we will let you know honestly whether we can support it or whether you are better off with a manufacturer engineer.
Yes. We provide annual Landlord Gas Safety Certificates (CP12) across Surrey and South London. The inspection covers every gas appliance in the property and the certificate is issued on the day of the visit.
Manufacturers require an annual service to keep the warranty valid. A yearly check also catches small faults before they become winter break-downs and keeps efficiency where it should be. Autumn is the busiest service window so we recommend booking by September.
Yes. We replace, service, and repair gas pool boilers and the plant around them, including pumps, filtration, and controls. It is a growing part of what we do across Surrey and South London, and all gas work is carried out by a Gas Safe registered engineer.
Often, yes. If a pool is slow to heat or expensive to run, we look at the boiler, the heat exchanger, and the controls and set out the options. Sometimes a like-for-like swap is right, sometimes a better-matched system saves more over a season. We quote both where it helps.
Every pool plant room is different, so we quote per project after a free site survey. You get the scope and the cost in writing before any work starts, with no obligation.