Wandsworth · SW18
Gas safety certificate in SW18 (Wandsworth)? We'll point you the right way.
Covering Wandsworth, Southfields, Earlsfield, including East Putney, Falconbrook, St Mary's. Find Gas Safe registered engineers nearby.
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How to check a gas safety engineer is registered: see the Wandsworth page.
SW18 (Wandsworth) in a nutshell
SW18 covers Wandsworth, Southfields, Earlsfield, in Merton and Wandsworth. Give your full postcode when you ask for quotes, so the pro can confirm they cover your street.
Local tips for SW18
Two councils in one district
SW18 is split between Merton and Wandsworth. Some councils run their own landlord licensing, so check which one your home is in.
Where's this from?
postcodes.io (ONSPD) local authorityGive your full postcode
SW18 stretches across East Putney, Falconbrook, Southfields and more, so give your full postcode, not just 'SW18', when you ask for quotes.
Where's this from?
postcodes.io (ONSPD) wardsMostly mains gas round here
Most homes in Wandsworth run on mains gas, so a standard boiler-and-hob check is what most people need.
Where's this from?
ONS Census 2021, Wandsworth: 69.6% mains gas onlyEngland landlord rules: quick version
- Every year: a check by a Gas Safe registered engineer.
- Within 28 days: give your tenants a copy (new tenants get it before they move in).
- Keep it: hang on to records for at least 2 years.
More detail on the Wandsworth page. Always double-check on GOV.UK.
Next door to SW18
Frequently asked questions
Which areas does SW18 cover?
SW18 (Wandsworth, Southfields, Earlsfield) includes the wards of East Putney, Falconbrook, Southfields, St Mary's, Thamesfield, Wandle, Wandsworth Common, Wandsworth Town, West Hill, Wimbledon Park (ONS Postcode Directory via postcodes.io).
Which postcode districts are next to SW18?
Neighbouring districts include SW6 (Fulham), SW5 (Earl's Court), SW15 (Putney), SW10 (West Brompton), SW19 (Wimbledon) (ONS Postcode Directory via Doogal). A pro covering SW18 may well cover these too, so it's worth asking.
How many homes are in SW18?
About 25,053 households and 59,838 residents at the 2011 Census, across 1,242 active postcodes (Doogal / ONS Postcode Directory).
Which council area is SW18 in?
SW18 sits in Merton, Wandsworth (postcodes.io). Parliamentary constituency: Battersea, Putney, Tooting, Wimbledon.
📊 The numbers behind this page
- Postcode district
- SW18 1
- Areas covered
- Wandsworth, Southfields, Earlsfield 2
- Active postcodes
- 1,242 3
- Households (2011 Census, via Doogal)
- 25,053 2
- Population (2011 Census, via Doogal)
- 59,838 2
- Electoral wards
- East Putney, Falconbrook, Southfields, St Mary's, Thamesfield, Wandle, Wandsworth Common, Wandsworth Town … 4
- Parliamentary constituencies
- Battersea, Putney, Tooting, Wimbledon 4
- Local authority
- Merton, Wandsworth 4
- Households heated by mains gas only (Wandsworth built-up area)
- 69.6% 5
- ONS Postcode Directory
- Doogal
- Doogal / ONSPD
- postcodes.io
- ONS Census 2021
Made with open data. See where it all comes from. Updated 26 October 2026.