"Amazing service. Got an appointment within 24 hours and completed gas safety check for me . Price was the best I could find. Very professional service . Would use again ."
London Boiler Repairs & Installations Done Right
Whether you need an urgent boiler fix or a brand-new system, our experienced London heating engineers deliver reliable solutions that last.
Upgrade your home comfort without the stress or mess.
Imagine reliable warmth, instant hot water, and lower energy bills—all installed by certified engineers who treat your home with respect. From smart controls to extended warranties, we handle the technical details so you can just enjoy the heat.
“Our energy bills have dropped significantly and the house has never been warmer. The team was professional, tidy, and fast.”
Service plans to help spread the cost.
We offer service plans for both homeowners and landlords in London to help spread the cost of their yearly boiler service & landlords safety certificate.
Our core values are what sets us apart.
True comfort is knowing you’ve invited the right team into your home. We deliver a stress-free experience from the first quote to the final check
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Transparent pricing, no hidden costs.
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Trustworthy and Honest
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12 Month Work Guarantee
A few stats about our company
2019
Established with 10 years experience
Delivering absolute peace of mind with comprehensive heating support for your home
Whether it’s an urgent breakdown repair or a modern energy-saving installation, our dedicated team ensures your family is safe, warm, and fully covered.
Service & Repair
Keep your boiler running safely with annual servicing and rapid response emergency breakdown repairs.
New boiler installations
Upgrade to a modern, high-performance heating system with flexible finance options and expert fitting.
Central heating services
Complete care for radiators, smart controls, and piping to maximise your home’s comfort and efficiency.
The booking process and journey with us couldn't be any simpler
Whether you need an emergency repair, an annual service, or a full system upgrade, our process is designed to be effortless.
How it works
Book Your Slot
Choose a time that works for you online or over the phone. We offer flexible 2-hour arrival windows so you're not waiting around all day.
Expert Visit
Our Gas Safe engineers arrive promptly. We'll diagnose repairs immediately or conduct a thorough survey for new installations.
Problem Solved
We complete the work to the highest standard, explain exactly what we've done, and ensure your home is left warm, safe, and tidy.
Providing expert boiler and heating solutions across london
The Happy Heating Company provides fast, reliable plumbing and heating services across Greater London, covering North, South and West London.
- Islington
- Camden Town
- Hampstead & West Hampstead
- Kilburn
- St John's Wood
- Golders Green
- Hendon
- Finchley
- Willesden
- Harrow
- Wembley
- Kensington & Chelsea
- Hammersmith
- Fulham
- Ealing
- Chiswick
- Acton
- Shepherd's Bush
- Notting Hill
- Wimbledon
- Richmond
- Putney
- Battersea
- Clapham
- Wandsworth
- Balham
- Brixton
- Twickenham
Areas in grey, we do not cover
You're in good hands
Don't just take our word for it, here are what our customers are saying.
"Adam has serviced my boiler since 2021. He is courteous and reliable and gives very good service."
"Great service provided! They came at a bit of an 'emergency' situation where our prior heating suddenly was not working and we weren't sure what to do. They were very quick and friendly while providing the repairs and happy to say we are warm in our house again!"
"Highly recommend! Adam was great, very professional and completed all the works on time without any problems and for a very reasonable cost! I will definitely use again!"
"Adam responded very quickly to a call on a Sunday. We had no hot water and suspected a boiler issue. Adam did a really thorough diagnosis and sorted the problem within the hour. Great service. Very reasonable call out charge. I would recommend him to anyone."
"I had a serious problem with my boiler that no one could fix! After several visits from other boiler engineers/specialists, They all told me I was better off replacing my boiler as they couldn't find the fault or the parts were not available anymore. I was recommended Adam by a friend and I can honestly say he was brilliant. He found the fault really quickly repaired it at a reasonable price"
Frequently asked questions
The cost of a new boiler installation varies depending on the type of boiler (Combi, System, or Regular), the brand chosen, and the complexity of the installation. For a straightforward swap, prices typically start from £2,000, while converting a system with a hot water tank to a Combi boiler may cost between £3,000 and £4,500. We always provide a fixed-price quote after a survey so you know exactly what you’re paying upfront.
Absolutely not. Transparency is one of our core values. Our quotes are fully comprehensive, covering the boiler, flue, pipework, safety checks, and installation. The price we quote is the price you pay, with no unexpected surprises on installation day.
- – Combi (Combination) Boilers: Produce heating and hot water on demand from a single unit. They save space as they don't require a hot water cylinder or cold water tank.
- – System Boilers: require a hot water cylinder but no cold water tank in the loft. Great for homes with multiple bathrooms that need hot water simultaneously.
- – Regular (Heat Only) Boilers: Use a hot water cylinder and a cold water tank in the loft. These are typically found in older properties.
We prioritise heating emergencies, especially during winter or for vulnerable customers (the elderly or families with young children). For breakdowns, we aim to be with you within 24 hours. Please call our landline or book online directly rather than emailing so we can respond immediately.
No, we charge a fixed diagnostic fee for the first hour. This covers our travel and the time spent by a qualified engineer to identify the fault. If the repair is simple and can be fixed within that hour without parts, you won’t pay a penny more.
It is more than just a quick glance! Our comprehensive service includes:
- 1. Visual inspection of the boiler and flue.
- 2. Removing the casing to check internal components.
- 3. Checking operating pressure and gas rates.
- 4. Flue gas analysis (checking efficiency and safety).
- 5. Cleaning the condensate trap and heat exchanger (if required).
- 6. Testing all safety devices.
Yes, we work with many private landlords and letting agents. We can perform the annual boiler service and gas safety inspection of all gas appliances (hobs, fires) in one visit, issuing the digital CP12 certificate immediately upon completion.