Which? Trusted Trader — independently vetted & approvedIf your flat takes its heating and hot water from a communal heat network, the Heat Interface Unit in your cupboard is what keeps it running. Most general plumbers will not touch them. We will.
Based in Brentford TW8 — fast response across West London.
Speak to a Gas Safe registered engineer, not a call centre. We answer 24 hours a day, Monday to Friday.
In many of West London's newer riverside apartments the heating and hot water come from a communal heat network rather than your own boiler. The Heat Interface Unit is the boiler-sized box in your cupboard that transfers heat from that network into your home. When it fails you lose hot water or heating exactly as you would with a boiler breakdown, but a lot of general plumbers will not work on them. We diagnose and repair HIUs across West London, service them annually and replace units that have reached the end of their life.
We work on Danfoss, SAV, Evinox and Altecnic units, among others. The faults we see most often are blocked plate heat exchangers, failed actuators, valves and sensors, low network flow and faulty temperature control. Most are diagnosed and fixed in a single visit. If your flat is in Brentford, our HIU page for Brentford TW8 covers the local developments in more detail.
Gas leak, burst pipe or no heating? Emergencies go straight to the front of our queue, and we answer the phone 24 hours a day Monday to Friday. We are closed at weekends; send a WhatsApp and we will come back to you first thing Monday.
We do. Silverdale Plumbing & Heating is based in Brentford TW8 and repairs Heat Interface Units across Brentford, Chiswick, Fulham, Hammersmith, Kew and the surrounding riverside developments. We are Gas Safe registered and a Which? Trusted Trader.
The usual culprits are a blocked plate heat exchanger, a failed control valve or actuator, low flow from the network itself, or a faulty temperature sensor. We test each in turn rather than replacing parts on a guess.
Annually. Servicing keeps the filters and heat exchanger clean, which protects the unit's efficiency and keeps your heat network bills down. Neglected units lose performance long before they fail outright.
An HIU itself carries no gas, so Gas Safe registration is not a legal requirement for the unit. It matters because the rest of your heating system often does involve gas, and because the same diagnostic skills apply. We are Gas Safe registered either way.
Real reviews from verified customers across West London.
"Chris made an excellent job of fitting a new heated towel rail. Punctual, clean and efficient, and didn't charge more than he quoted. It makes such a nice change to recommend someone so highly!"
Heated Towel RailVerified customer review · W4"I have used Silverdale a few times before. They are responsive, very good communicators, book the work promptly and do a good job. Highly recommend."
Kitchen Pipes & DishwasherVerified customer review · NW3"Arrived in short order, identified the problem and the repair was done in less than two hours."
Emergency Boiler RepairVerified customer review · W12