Lambeth · SW4
Plumbers & Gas Engineers in Clapham
Clapham's period conversions, flat-shares and family homes around the Common keep our engineers busy all year - and at roughly 15 minutes from our Streatham base, SW4 is squarely in our fastest-response zone.
We cover everything from emergency leaks and boiler breakdowns to annual servicing, new boiler installs and the landlord gas safety certificates Clapham's huge rental market runs on.
Lambeth · SW4
Around 15 minutes from our Streatham base
What we do in Clapham
Emergency Plumber in Clapham
Burst pipes, major leaks and gas emergencies in Clapham, 24 hours a day. We'll talk you through making things safe while an engineer is on the way.
Water leaks £150 · Gas leaks £180
No heating or hot water? Emergency boiler repairs and same-day diagnostics across Clapham, on all major brands - Vaillant, Worcester Bosch, Ideal, Baxi and more. Fault codes, leaks and pressure problems solved.
£120 diagnostic - deducted from your repair
Annual servicing keeps your boiler safe, efficient and inside its manufacturer warranty. Gas tightness test, flue gas analysis, controls and pressure checks, condensate trap cleaned.
Basic £120 · full service £220
New high-efficiency combi and system boilers, sized properly for your home in Clapham. Free survey, written quote, and old-boiler removal included.
From £2,500 · powerflush, filter & 12-yr warranty
Landlord gas safety certificates for rental properties in Clapham, with certificates emailed the same day. Appliances tested by Gas Safe registered engineers.
£80 · extra appliances £30 each
Taps, toilets, leaks, blocked pipes and bathroom plumbing across Clapham - the everyday jobs, done properly at fixed prices agreed before we start.
Repairs from £80
Local engineers who know Clapham
A big share of Clapham's Victorian houses are split into flats, which means multiple boilers per building, shared water mains, and landlords needing CP12 certificates on renewal cycles. We manage all of it - and when a conversion's ageing combi finally gives up, a like-for-like swap starts from £2,500.
InstaGasWorks is based at 37 Mitcham Lane, Streatham - around 15 minutes from Clapham. We keep our patch tight on purpose: it's how we manage same-day call-outs and turn up when we say we will.
Why Clapham chooses us
- Gas Safe registered engineers - verify us on the register
- Rated 5.0 by our customers on Google
- Fixed prices agreed before any work starts
- 24/7 emergency call-outs across SW4
- Diagnostic fees deducted when you accept our repair quote
- Local, family-run - not a national call centre
Clapham questions, answered
Do you cover both Clapham Common and Clapham North?
Yes - all of SW4, from Clapham Old Town and the Common through Clapham High Street to Clapham North, plus the Abbeville Village streets. We're about 15 minutes away in Streatham.
I'm a landlord with flats in Clapham. Can you handle the gas certificates?
Absolutely. CP12 landlord gas safety certificates are £80 (extra appliances £30 each), and we can schedule multiple flats in one visit. We'll remind you when renewals are due if you ask us to.
How fast can you attend an emergency in Clapham?
For burst pipes, serious leaks or a dead boiler we aim for same-day attendance in SW4, often within the hour outside peak traffic. Call 0208 226 0205 and we'll give you a realistic ETA straight away.
How much is a boiler service in Clapham?
A basic boiler service in Clapham is £120 - gas tightness test, flue gas analysis, controls and system pressure checks, condensate trap cleaned and the expansion vessel recharged. A full service, which adds a strip-down and internal clean, new seals and genuine manufacturer parts, is £220. Annual servicing keeps your manufacturer warranty valid.
How much does a new boiler cost in Clapham?
A straightforward combi-for-combi swap starts from £2,500, and that price includes a powerflush, a magnetic filter, a limescale reducer, one free heating control and up to 12 years warranty. Converting an older conventional system costs more depending on pipework and flue routes, so we survey Clapham homes free of charge and give a written quote before anything is booked.
More questions? Read our full FAQ or call us - we're happy to give advice over the phone.
We also cover nearby
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