🔧 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.

🏢 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
- Commercial Boiler Installations
- Planned Maintenance for Heating & Plumbing
- Vaillant Commercial Boiler Repairs
- Commercial Plumbing in London
✅ 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.
🖱️ Request a Commercial Boiler Repair Visit