Swansea · SA3
Gas safety certificate in SA3 (Bishopston)? We'll point you the right way.
Covering Bishopston, Blackpill, Caswell, Clyne, Langland, Mumbles, Oystermouth, Southgate, South Gower, West Cross, including Gower, Llansamlet, Mayals. Find Gas Safe registered engineers nearby.
Free to use · No sign-up to search · Always check their registration before you book
Request a gas safety certificate in SA3 (Bishopston)
No gas safety engineer listed for SA3 (Bishopston) yet. Tell us what you need and we'll find you a registered gas safety engineer, free.
Request a gas safety certificate in SA3 (Bishopston)
How to check a gas safety engineer is registered: see the Swansea page.
SA3 (Bishopston) in a nutshell
SA3 covers Bishopston, Blackpill, Caswell, Clyne, Langland, Mumbles, Oystermouth, Southgate, South Gower, West Cross, in Swansea. Give your full postcode when you ask for quotes, so the pro can confirm they cover your street.
Local tips for SA3
Swansea council area
SA3 is in Swansea's area. Some councils run their own landlord licensing, so it's worth checking theirs.
Where's this from?
postcodes.io (ONSPD) local authorityGive your full postcode
SA3 stretches across Bishopston, Gower, Llansamlet and more, so give your full postcode, not just 'SA3', when you ask for quotes.
Where's this from?
postcodes.io (ONSPD) wardsMostly mains gas round here
Most homes in Swansea run on mains gas, so a standard boiler-and-hob check is what most people need.
Where's this from?
ONS Census 2021, Swansea: 81.6% mains gas onlyWales landlord rules: quick version
- Every year: a gas safety check by a Gas Safe registered engineer.
- CO alarm: needed where there's a gas, oil or solid fuel appliance.
- Register: with Rent Smart Wales.
More detail on the Swansea page. Always double-check on GOV.WALES.
Next door to SA3
Frequently asked questions
Which areas does SA3 cover?
SA3 (Bishopston, Blackpill, Caswell, Clyne, Langland, Mumbles, Oystermouth, Southgate, South Gower, West Cross) includes the wards of Bishopston, Gower, Llansamlet, Mayals, Mumbles, Pennard, Sketty, West Cross (ONS Postcode Directory via postcodes.io).
Which postcode districts are next to SA3?
Neighbouring districts include SA2 (Brynmill), SA4 (Blue Anchor), SA5 (Blaenymaes), SA1 (Bonymaen) (ONS Postcode Directory via Doogal). A pro covering SA3 may well cover these too, so it's worth asking.
How many homes are in SA3?
About 11,844 households and 26,222 residents at the 2011 Census, across 727 active postcodes (Doogal / ONS Postcode Directory).
Which council area is SA3 in?
SA3 sits in Swansea (postcodes.io). Parliamentary constituency: Gower, Neath and Swansea East, Swansea West.
📊 The numbers behind this page
- Postcode district
- SA3 1
- Areas covered
- Bishopston, Blackpill, Caswell, Clyne, Langland, Mumbles, Oystermouth, Southgate, South Gower, West Cross 2
- Active postcodes
- 727 3
- Households (2011 Census, via Doogal)
- 11,844 2
- Population (2011 Census, via Doogal)
- 26,222 2
- Electoral wards
- Bishopston, Gower, Llansamlet, Mayals, Mumbles, Pennard, Sketty, West Cross 4
- Parliamentary constituencies
- Gower, Neath and Swansea East, Swansea West 4
- Local authority
- Swansea 4
- Households heated by mains gas only (Swansea built-up area)
- 81.6% 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.