24 Hour Boiler Repair & Plumber in Wandsworth, London

Published London price guides in 2026 put most boiler repairs between roughly £80 and £350, with a reset or small fault at the bottom and a pump, circuit board or heat exchanger higher up. A pump replacement is listed at about £150 to £280, a circuit board at £200 to £450 and a heat exchanger at £350 to £650. Each partner company gives its own figure in writing after diagnosing the fault, so the price you accept is the price you pay.

Yes, the line is open 24 hours a day, every day of the year, and a lockout at 2am is treated the same as a daytime enquiry. When you call, we look for the partner company that can reach you soonest and fits the fault, and then ring you back with who is coming and when. Out-of-hours work usually costs more than daytime work in London, with published guides listing evening and overnight boiler call-outs at roughly £120 to £350, and the partner company states its figure before starting.

The work is done by an independently owned local partner company from our network, not by our own staff. We take your call, match the job to the partner who can get there fastest and suits the fault, and text you their company name and details before they arrive. The partner quotes in writing, carries out the job, invoices you and takes payment directly. We do not handle invoices or payment, but if anything goes wrong afterwards you ring us and we chase it.

Wandsworth's Thames Water supply is hard, at about 257 mg/l of calcium carbonate, and limescale builds up inside combi heat exchangers over the years. A furred exchanger restricts flow, which causes kettling, overheating and lockouts, while a failing expansion vessel or a weeping pressure relief valve causes pressure loss. The partner company diagnoses which it is before quoting. Neither fault is fixed by topping up the filling loop week after week.

It often does. Victorian terraces along Garratt Lane were built as houses and many have since been split into flats, which leaves shared stacks, shared drains and pipe runs that serve more than one home. A leak or blockage on one floor can therefore affect the flat below, and responsibility for shared pipework can sit with the freeholder rather than you. The partner company will tell you what is shared and what is yours before work starts.

We sell what the work is built to rather than a badge. Gas work follows the Gas Safety (Installation and Use) Regulations 1998 and the manufacturer's installation instructions. New boilers are specified to Building Regulations Part L, which sets a 92% minimum seasonal efficiency, and unvented cylinders to Part G3. Water fittings follow the Water Supply (Water Fittings) Regulations 1999, and a cleansed circuit follows BS 7593.

Response depends on which partner company is free and how far it is from you, so we never promise a fixed arrival time on the phone. Putney is about two miles west of our base area, Southfields about two miles south-west and Earlsfield just over a mile south along Garratt Lane, which is why the nearest available partner is usually close. On a busy cold morning it can take longer, and we tell you honestly when we ring you back.

In a hard-water area it is one of the cheapest ways to avoid an emergency. A service in London is published at roughly £70 to £120, and it lets the engineer check the heat exchanger, flue, seals, pressure and safety devices while the boiler is still working. Many manufacturers also expect an annual service to keep the warranty valid. See boiler servicing for what a visit covers.

The usual rule of thumb is to compare the repair quote with the age and condition of the boiler. A small fault on a boiler under ten years old is normally worth repairing, while repeated faults, a failed heat exchanger or unavailable parts push towards replacement. A new combi in London is published at roughly £2,000 to £3,500 installed, and it must meet Building Regulations Part L. See boiler installation for the process.

For a burst pipe, shut the stopcock, switch off the immersion heater and open the cold taps to drain the system, then move electrical items away from the water. For a suspected gas smell, do not use switches or flames, open windows, leave the property and ring the National Gas Emergency number, 0800 111 999, before anything else. For a boiler lockout, check the pressure gauge and the thermostat, but do not open the casing. Then call 07727 932887.

Yes. The service area runs across Wandsworth Town, Putney, East Putney, Southfields and Earlsfield, with SW18, SW15 and the Southfields edge of SW19 all covered. Southfields sits across the boundary of the London Borough of Wandsworth and Merton, which matters for building control but not for who answers the phone. See Putney, Southfields and Earlsfield for the local detail.