Hot Water Cylinder Repair & Replacement in Hammersmith & Fulham

Water dripping from the tundish on an unvented cylinder is the system telling you something — usually an expansion vessel or pressure-reducing valve fault. It's diagnosable and fixable; ignoring it isn't. We cover all of Hammersmith & Fulham.

Vented vs unvented: what you've got matters

A vented cylinder is fed by gravity from a cold-water tank (usually in the loft) and vents to atmosphere — simple, tolerant, low-pressure. An unvented cylinder is fed directly from the mains, delivers strong pressure to every outlet, and manages expansion with a sealed vessel and safety valve set. The unvented type is legally G3-controlled: installation, and work on its safety controls, must be carried out by a G3-qualified engineer. Every Hammersmith & Fulham job on this site involving an unvented cylinder is tagged and routed to G3-qualified engineers automatically.

Common cylinder faults we repair

The repair list in Hammersmith & Fulham runs: immersion elements and their thermostats, cylinder stats, two-port valve heads and bodies, unvented safety kit — pressure-reducing valves, expansion vessels, relief valves — and weeping connections at the coil or immersion boss. A cylinder shell that's leaking from the body itself, though, is terminal: shells aren't repairable, and we'll say so straight away rather than sell you a doomed fix. Hard Thames Water supply means scale is a fact of life in Hammersmith & Fulham — furred shower heads, tired cartridges and short-lived immersion elements are the borough's background hum.

Repair or replace: the honest arithmetic

We price the decision, not the fear: what the repair costs now, what the cylinder's age and scale condition suggest about the next failure, and what a straight replacement costs installed. In Hammersmith & Fulham's water, element and coil scaling shortens cylinder life measurably, so the crossover point comes sooner than the national average — but a sound cylinder with a £90 fault still gets the £90 fix.

Cylinder costs in Hammersmith & Fulham

Component repairs — immersion elements, thermostats, valves — typically land from £135 in Hammersmith & Fulham including standard parts. Unvented safety-kit work is quoted by a G3 engineer after inspection. Full replacements range widely with capacity and type: a like-for-like vented swap sits at the lower end, an unvented installation with new safety controls and discharge pipework at the upper. Every quote is itemised before work begins.