Lambeth · SW4
Plumber & Gas Engineer in Clapham
Clapham's period conversions, flat-shares and family homes around the Common keep InstaGasWorks busy all year, and at roughly 15 minutes from the Streatham base, SW4 sits squarely in the fastest-response zone.
You can book anything 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 the Streatham base
Services in Clapham
Emergency Plumber in Clapham
Burst pipes, major leaks and gas emergencies in Clapham, 24 hours a day. You'll be talked through making things safe while your 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 a Gas Safe registered engineer.
£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 work starts.
Repairs from £80
A local engineer who knows 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. It all gets handled, 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. The patch is kept tight on purpose: it's what makes same-day call-outs possible, and it means your engineer turns up when promised.
Why Clapham chooses InstaGasWorks
- Gas Safe registered - check InstaGasWorks on the register
- Rated 5.0 by customers on Google
- Fixed prices agreed before any work starts
- 24/7 emergency call-outs across SW4
- Diagnostic fees deducted when you accept the repair quote
- Independent and owner-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. The base in Streatham is about 15 minutes away.
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 multiple flats can be scheduled in one visit. Ask, and you'll get a reminder when renewals are due.
How fast can you attend an emergency in Clapham?
For burst pipes, serious leaks or a dead boiler, the aim is same-day attendance in SW4, often within the hour outside peak traffic. Call 0208 226 0205 for 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 Clapham homes get a free survey and a written quote before anything is booked.
More questions? Read the full FAQ or call for friendly advice over the phone.
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