Service area
Areas we cover across South West London
InstaGasWorks provides Gas Safe boiler repairs, servicing, installation, emergency plumbing and landlord certificates across South West London, Croydon, Sutton and the Surrey borders. Check your postcode, find your local page, and book an engineer who's genuinely nearby.
We work a deliberately tight patch from our base on Mitcham Lane, Streatham - it's how we manage same-day emergency call-outs and honest arrival times instead of all-day windows.
Check whether we cover your postcode
Enter your postcode and we'll tell you instantly - and show you your local page with prices and response times.
- Boiler repairs, servicing and installation
- Emergency plumbing and gas call-outs, 24/7
- CP12 landlord gas safety certificates
- Taps, toilets, leaks and general plumbing
Gas Safe registered
Verify us on the official register
Rated 5.0 on Google
By customers across our patch
Tight local patch
Everywhere within ~25 min of base
Fixed prices
Agreed before any work starts
Find your area
Every area below has its own local page with services, prices, response times and answers to the questions we hear most there.
01South West London
10 areasThe heart of our patch - Victorian terraces, period conversions and riverside flats across the SW postcodes. Same-day call-outs are the norm here.
SW11Emergency plumbing, boiler repairs and gas work.
Services in Battersea
SW15Emergency plumbing, boiler repairs and gas work.
Services in Putney
SW12Emergency plumbing, boiler servicing and gas work.
Services in Balham
SW17Emergency plumbing, boiler repairs and gas work.
Services in Tooting
SW18Emergency plumbing, boiler repairs and gas work.
Services in Wandsworth
SW4Emergency plumbing, boiler repairs and gas work.
Services in Clapham
SW16Emergency plumbing, boiler repairs and gas work.
Services in Streatham
SW19 SW20Emergency plumbing, boiler repairs and gas work.
Services in Wimbledon
SW19Emergency plumbing, boiler repairs and gas work.
Services in Colliers Wood
SW16Emergency plumbing, boiler repairs and gas work.
Services in Norbury02Croydon & South East
4 areasFrom Dulwich's period homes down to central Croydon, Thornton Heath and Mitcham - busy boiler-repair and landlord territory we drive every week.
SE21 SE22Emergency plumbing, boiler repairs and gas work.
Services in Dulwich
CR0Emergency plumbing, boiler repairs and gas work.
Services in Croydon
CR7Emergency plumbing, boiler repairs and gas work.
Services in Thornton Heath
CR4Emergency plumbing, boiler repairs and gas work.
Services in Mitcham03Sutton & Surrey borders
4 areasThe SM postcodes: Sutton, Carshalton, Wallington and Morden. Inter-war family homes where annual boiler servicing genuinely pays for itself.
SM4Emergency plumbing, boiler repairs and gas work.
Services in Morden
SM1Boiler servicing, boiler repairs and gas work.
Services in Sutton
SM5Emergency plumbing, boiler repairs and gas work.
Services in Carshalton
SM6Emergency plumbing, boiler repairs and gas work.
Services in WallingtonService area
Gas and heating engineers across South West London
We work a tight patch - from Battersea and Putney, down through Wimbledon and Streatham, to Croydon and Sutton. Staying local is how we get to same-day breakdowns. Pick a borough to see what we cover.
Wandsworth · Battersea · Putney · Balham · Tooting
Wimbledon · Colliers Wood · Mitcham · Morden
Not on the list? Call 0208 226 0205 and we'll tell you straight away whether we can reach you.
Coverage questions, answered
Which postcodes do you cover?
Our regular service area covers SW4, SW11, SW12, SW15, SW16, SW17, SW18, SW19 and SW20 in South West London; SE21 and SE22 around Dulwich; CR0, CR4 and CR7 for Croydon, Mitcham and Thornton Heath; and SM1, SM4, SM5 and SM6 for Sutton, Morden, Carshalton and Wallington.
Do you charge extra for travel?
No. We keep our patch deliberately tight - everywhere we cover is within about 25 minutes of our Streatham base - so our fixed prices are the same across the whole service area, with no travel surcharges.
What if my postcode isn't covered?
Call us anyway on 0208 226 0205. For larger jobs like boiler installations and bathroom refits we regularly travel beyond our regular patch, and if we genuinely can't reach you we'll say so straight away rather than waste your time.
Where is InstaGasWorks based?
Our base is at 37 Mitcham Lane, Streatham, SW16 6LJ - which is why response times across Streatham, Tooting, Norbury, Mitcham and Balham are some of the fastest in South West London.
In our area and need an engineer?
Same-day availability across South West London, Croydon, Sutton and the Surrey borders. Free, no-obligation quotes on bigger jobs.