Expert Commercial Boiler Repairs in London

A White Glove Service For Your Home

🔧 Commercial Boiler Repairs in London

Trusted, Responsive Heating Engineers for London’s Commercial Sector

A faulty commercial boiler doesn’t just mean no heating — it can cause significant operational disruption. Whether you’re running a residential development, hotel, clinic or office space, RARE Plumbing London provides fast, efficient, and discreet commercial boiler repairs across London, with a focus on long-term performance, energy efficiency, and compliance.

From system lockouts to full fault diagnostics, we’re trusted by building managers, landlords, and commercial property owners to keep their heating systems working reliably — all year round.

Vaillaint commercial boiler london
Commercial Boilers London

🏢 Who We Support

We’re experienced in working across a range of commercial environments, including:

  • Apartment blocks & communal plant rooms
  • Hotels, galleries, and private venues
  • Office buildings & retail units
  • Schools, clinics & educational institutions
  • Estate managers & facilities management firms

🛠️ Common Commercial Boiler Faults We Fix

Commercial boilers are complex systems, and even small issues can cause big problems if left unresolved. We commonly fix:

  • 🔸 Low pressure or no heat
  • Caused by leaks, radiator bleeding, or flow issues.
  • 🔸 Ignition or burner faults
  • Leading to unreliable performance or boiler shutdowns.
  • 🔸 Noisy or vibrating systems
  • Often a sign of trapped air, limescale, or failing components.
  • 🔸 Thermostat or control panel failures
  • Resulting in poor zoning or no centralised temperature control.
  • 🔸 Leaks and drips
  • From internal seals, pipework, valves or pumps — all of which we can locate and repair quickly.
  • 🔸 Radiators not heating evenly
  • Frequently caused by sludge buildup or faulty circulation pumps.
💬 Not sure what the issue is? Call us and we’ll guide you through what’s happening — then fix it fast.

🔧 Brands We Repair & Maintain

Our engineers are experienced in working with leading commercial boiler brands, including:

  • Vaillant Commercial Boilers
  • Hamworthy Heating Systems
  • ATAG Commercial Boilers
  • Viessmann Commercial Systems

We use brand-specific tools and genuine parts for reliable, long-lasting results.

⚙️ Emergency Response & Scheduled Repairs

Whether it’s an emergency call-out or planned repair, we work around your operations with minimal disruption.

  • ✅ Same-day repair availability
  • ✅ Off-peak or weekend scheduling
  • ✅ Digital diagnostics and flushing
  • ✅ Thermostat and zoning recalibration
  • ✅ PPM maintenance to prevent future issues

👉 Explore PPM Maintenance Services

🧰 Time for a Replacement?

If your commercial boiler is:

  • Over 12 years old
  • No longer energy efficient
  • Frequently failing
  • Undersized or outdated

We’ll provide honest guidance and a full installation service if a replacement is the smarter long-term choice.

👉 See Commercial Boiler Installations

📍 Areas We Cover

We serve commercial clients throughout:

  • Central London (W1, WC1, SW1, EC1, NW1)
  • Mayfair, Marylebone, Knightsbridge, Pimlico, Belgravia
  • Camden, Hampstead, Belsize Park, St John’s Wood
  • Greater London Zones 1–3 (wider support by contract)

🔁 Related Services

✅ Why Choose RARE Plumbing?

  • Engineers trained in all major commercial brands
  • Trusted by managing agents, building owners & developers
  • Gas Safe Registered and fully insured
  • Transparent pricing — no hidden fees
  • Clean, courteous, luxury-standard service
  • Available 7 days a week for commercial emergencies

📞 Book Your Commercial Boiler Repair in London

Don’t let a fault turn into a shutdown. Call our team today to restore comfort, safety, and peace of mind in your property.

📞 020 7458 4949

✉️ hello@rareplumbing.london

🖱️ Request a Commercial Boiler Repair Visit

CONTACT US NOW

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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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EXCLUSIVE MEMBERSHIP BROCHURE

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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.