From a mysterious drip to a boiler that just won't fire up — our engineers diagnose quickly, explain clearly and fix properly. Every repair backed by a 12-month warranty.
A broken boiler or faulty heating system is miserable — especially in winter. Our engineers carry the most common parts on every van, which means most repairs are sorted in a single visit. No waiting days for a part to arrive. No second appointment. Just fixed.
All of our engineers are experienced in diagnosing and repairing all makes and models of gas boiler, heating systems and appliances. We'll tell you upfront what the problem is, what it'll cost, and give you our honest opinion on whether a repair or replacement makes more sense.
Every repair we carry out — parts and labour — comes with a full 12-month warranty. If the same fault reoccurs within a year, we'll fix it at no extra charge.
We have an engineer on call around the clock. If your heating fails overnight or at the weekend, we're still here.
0208 050 4729 Call the Emergency LineDon't call us first — call the National Gas Emergency line on 0800 111 999 immediately and follow their instructions. Open windows, don't use switches or flames, and leave the building. More advice from Cadent Gas →
Tell us what's happening and when it started. We'll give you an honest assessment over the phone and book you in — often same or next day.
Our engineer carries out a full diagnostic — not just a look at the obvious. We check the whole system to make sure we fix the actual problem, not just the visible symptom.
We quote the job upfront — no surprises when the invoice arrives. If we need a part that's not on the van, we'll tell you exactly when we can return.
We carry out the repair, then test the full system before we leave. If anything else looks like it needs attention, we'll flag it — without pressuring you to spend more.
Your repair is covered. We'll also let you know if we think an annual service would help prevent future issues — entirely your call.
Here are the most common heating problems we're called out to fix. If yours isn't on the list — give us a ring anyway, we'll almost certainly be able to help.
The most common call-out. Usually a faulty diverter valve, failed PCB, thermocouple or ignition issue — most fixed same visit.
Water dripping from your boiler or pipework needs urgent attention. We'll locate the source, stop the leak and repair properly.
Cold at the top? Trapped air — a bleed fixes it. Cold at the bottom? Sludge build-up — we'll power flush and get heat back.
Pressure dropping repeatedly often means a leak somewhere in the system. We'll find it and fix it — not just top it up and leave.
Flashing lights and cryptic codes decoded. We carry diagnostic equipment and know most manufacturer fault codes by heart.
Banging, kettling or gurgling sounds are often a sign of sludge, limescale or a failing pump. We'll diagnose and sort it.
Usually a faulty thermocouple or draught issue. A quick fix in most cases — and an important one for safety.
Circulation pumps and zone valves are common failure points. We carry replacements for the most popular models on every van.
That's fine — just call us. Describe what you're seeing (or hearing!) and we'll give you a steer. No call-out charge for advice.
Call us for same or next-day repairs. 24hr emergency line available. No call-out charge to get a quote.