Vaillant Boiler Repairs in Belsize Park – Domestic & Commercial Experts in NW3

A White Glove Service For Your Home

🔧 Vaillant Boiler Repairs in Belsize Park

Trusted Specialists for Homes & Commercial Properties in NW3

If your Vaillant boiler has stopped working — or is flashing a code you don’t recognise — you need a fast, reliable repair from engineers who truly understand the system. At RARE Plumbing London, we provide expert Vaillant boiler repairs in Belsize Park, covering both domestic and commercial systems with clean, discreet service you can rely on.

Whether you’re in a period conversion on Eton Avenue, managing a business near Haverstock Hill, or maintaining a luxury flat by Belsize Park Gardens, we’ve got the tools and expertise to get your heating back in perfect shape.

🛠️ Common Vaillant Faults We Repair

Here’s a breakdown of common Vaillant error codes and what they typically mean. We repair all models, including ecoTEC Plus, ecoFIT Pure, and Vaillant commercial boilers.

F22 – Low Water Pressure

We’ll repressurise the boiler, check for pressure loss, and ensure your expansion vessel is correctly calibrated.

F28 / F29 – Ignition Issues

Gas not lighting? Our engineers will test ignition components, inspect the flue and ventilation, and check gas flow safety.

F75 – Pressure Sensor or Pump Failure

If the boiler can’t detect flow, we’ll identify the root cause and either clean, replace, or re-pressurise as needed.

F62 – Faulty Gas Valve or PCB

We’ll inspect both the gas valve and printed circuit board, and replace whichever component is underperforming.

F76 / F83 – Overheating or Circulation Faults

In domestic and commercial boilers alike, these faults often point to poor system flow or scaling inside the heat exchanger.

💬 Don’t see your error code? Contact us today and we’ll talk you through what it means before we visit — no pressure, no jargon.

🏢 Commercial Vaillant Boiler Repairs

We don’t just work in homes. Our engineers are trained and qualified to repair Vaillant commercial boilers used in:

  • Office buildings
  • Apartment blocks
  • Restaurants and cafés
  • Private health clinics
  • Managed properties & communal heating systems

We understand the higher output and control requirements of commercial systems and carry specialist equipment for quicker resolution.

🔄 When Repair Isn’t Worth It

If your Vaillant system is:

  • Over 12–15 years old
  • Breaking down frequently
  • Generating escalating repair bills
  • Underpowered or inefficient for your property

…it may be time to replace. We’ll always give you clear, honest advice, and help you select a system that fits your lifestyle, space, and energy needs.

👉 View Vaillant Boiler Installation in London

📍 Proudly Serving NW3

We regularly work in and around:

  • Belsize Park Gardens
  • Eton Avenue
  • Lancaster Grove
  • Haverstock Hill
  • Lyndhurst Road
  • And across all of Belsize Park and nearby Hampstead

RARE engineers are clean, careful, and well-versed in working with high-spec properties and sensitive heating systems.

🔁 Related Services

🧰 Why Choose RARE in Belsize Park?

  • Domestic and commercial Vaillant repair specialists
  • Clean, respectful engineers used to working in high-value homes
  • Same-day availability wherever possible
  • Trusted by managing agents, architects, and homeowners
  • No shortcuts — just honest, expert service every time

📞 Book Your Vaillant Boiler Repair in Belsize Park

If your heating’s down, let’s get it sorted — quickly, cleanly, and with total confidence in our team.

📞 020 7458 4949

✉️ hello@rareplumbing.london

🖱️ Request a Repair in NW3

CONTACT US NOW

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Schedule a repair service

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

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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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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.