Combi Boiler Installation & Replacement in London

A White Glove Service For Your Home

🔧 Expert Combi Boiler Installations & Replacements by RARE Plumbing London

If your old boiler is struggling to keep up or costing you more in repairs than it’s worth, it might be time to consider a combi boiler upgrade. At RARE Plumbing London, we specialise in the installation and replacement of high-efficiency combi boilers — tailored to meet the demands of modern London homes.

Whether you’re switching from a conventional system or upgrading an old combi unit, our Gas Safe registered engineers provide a seamless, stress-free service. From expert guidance to precision installation, we handle it all with the white-glove care you expect from RARE.

💡 Why Choose a Combi Boiler?

A combi (combination) boiler provides both heating and hot water directly from the mains — meaning no need for separate tanks or cylinders. They’re ideal for flats, apartments, and smaller homes where space and efficiency matter most.

Benefits of Combi Boilers:

Hot water on demand — No storage tank, no waiting
Compact design — Perfect for homes with limited space
Energy efficient — Lower running costs and carbon footprint
Simplified system — Fewer parts = fewer breakdowns
Fast installation — In and out with minimal disruption

🔄 Time to Replace Your Boiler?

If your current boiler is:

Over 10–15 years old
No longer heating effectively
Breaking down frequently
Causing high energy bills

…it may be time for a replacement. Our engineers can assess your existing setup and recommend the best combi boiler for your property, lifestyle, and budget.

We install trusted brands including:

Vaillant
Viessmann
ATAG
Worcester Bosch

And we also offer combi boiler replacements with smart thermostat integration, including Heatmiser, Tado, and Honeywell controls.

👉 Explore our Boiler Repairs

👉 Learn more about Smart Thermostats

🛠️ What’s Included in Our Combi Boiler Installations

Removal of old boiler system (incl. tanks, if applicable)
Supply & installation of new combi boiler
System flush to remove sludge/dirt
New magnetic filter for system protection
Smart thermostat setup (if requested)
Gas Safe certification & building regs compliance
Aftercare support & warranty registration

📍 Serving London’s Most Trusted Postcodes

We install combi boilers across Central and North West London, including:

Mayfair
Hampstead
Notting Hill
Marylebone
St John’s Wood
Primrose Hill
Knightsbridge
Belgravia
South Kensington
Belsize Park

📲 Looking for a “combi boiler installer near me”? RARE Plumbing covers your area.

🔁 Related Services

🧰 Why Choose RARE Plumbing London?

✅ Gas Safe Registered Engineers
✅ Transparent Pricing with No Hidden Costs
✅ Premium Brands Installed with Full Warranties
✅ Experienced in Period Homes & High-End Properties
✅ Trusted by Managing Agents & Homeowners Across London

📞 Book Your Combi Boiler Installation

We make boiler replacements easy. No mess, no stress — just expert service from start to finish.

📞 Call us: 020 7458 4949

📩 Email: hello@rareplumbing.london

🖱️ Request Your Quote Today

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Schedule a repair service

We are available 24/7 for heating and plumbing repairs.

Schedule a Repair

OUR PROCESS

What's our RARE process?

STEP 1

To get in touch with us, you can call the phone number on the contact page or email us.

STEP 2

We can provide phone advice and schedule a property visit if necessary, usually within a few hours.

STEP 3

We will come to your home and protect your furniture and valuables so nothing gets damaged.

STEP 4

Once the work has been agreed upon, we will send you an invoice and proceed with payment only after ensuring your complete satisfaction.

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RARE Heating and Plumbing Services brochure - Exclusive Membership Service.

Happy Customers

Have a look at our outstanding reviews to see how we treat our customers and their homes.

“From the moment I called RARE Plumbing, I felt like I was in safe hands. They arrived on time, explained everything clearly, and fixed our boiler the same day with zero mess. It’s rare to find tradespeople this professional — I wouldn’t hesitate to recommend them.”

Amelia D., St John’s Wood

We had a problem with our boiler and complex heating system that other plumbers refused to touch. Paresh took it on, and fixed it very quickly. The visit was swift and easy, and he was very sensitive to our shielding requirements.

Michael Quicke

Having previously used Rare to do a full system installation, including new heaters, storage tank, new boiler install, bathroom fit & kitchen appliance install and new piping throughout the home, I called upon them again to service our boiler this winter.

Amit Halai

Paresh is unusual for a London tradesman -- he comes when he says he will come, he charges what he says he will charge, and the workmanship is always first class. I cannot recommend him highly enough.

James Robertson

Helped me with underfloor heating issue - I am so lucky to have found them! Great customer service, so knowledgeable - can't recommend them highly enough.

Becky B

I called Rare on Christmas Day with an urgent boiler problem. The team was very responsive, professional and polite - the issue was fixed quickly and fortunately they saved us from spending Christmas in a cold home with no warm water! Thanks again!

Yorick Duizendstraal

Paresh of RARE Heating & Plumbing Services leaning on the company van.

A White Glove Service for Your Home.

RARE Heating & Plumbing Services van. Find us at RAREPLUMBING.LONDON on the door.