Wrexham · LL12
Gas safety certificate in LL12 (Wrexham)? We'll point you the right way.
Covering Wrexham, Caergwrle, Cefn-y-Bedd, Cymau, Gresford, Hope, Llay, Marford, Rossett, including Acton and Maesydre, Borras Park, Brymbo. Find Gas Safe registered engineers nearby.
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Request a gas safety certificate in LL12 (Wrexham)
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How to check a gas safety engineer is registered: see the Wrexham page.
LL12 (Wrexham) in a nutshell
LL12 covers Wrexham, Caergwrle, Cefn-y-Bedd, Cymau, Gresford, Hope, Llay, Marford, Rossett, in Flintshire and Wrexham. Give your full postcode when you ask for quotes, so the pro can confirm they cover your street.
Local tips for LL12
Two councils in one district
LL12 is split between Flintshire and Wrexham. 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
LL12 stretches across Acton and Maesydre, Borras Park, Brymbo and more, so give your full postcode, not just 'LL12', when you ask for quotes.
Where's this from?
postcodes.io (ONSPD) wardsMostly mains gas round here
Most homes in Wrexham run on mains gas, so a standard boiler-and-hob check is what most people need.
Where's this from?
ONS Census 2021, Wrexham: 82.1% 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 Wrexham page. Always double-check on GOV.WALES.
Next door to LL12
Frequently asked questions
Which areas does LL12 cover?
LL12 (Wrexham, Caergwrle, Cefn-y-Bedd, Cymau, Gresford, Hope, Llay, Marford, Rossett) includes the wards of Acton and Maesydre, Borras Park, Brymbo, Bryn Cefn, Caergwrle, Garden Village, Gresford East and West, Grosvenor, Gwersyllt North, Gwersyllt South, Hope, Little Acton, Llanfynydd, Llay, Marford and Hoseley, Rhosnesni, Rossett (ONS Postcode Directory via postcodes.io).
Which postcode districts are next to LL12?
Neighbouring districts include LL11 (Wrexham), LL13 (Wrexham), CH4 (Chester), LL14 (Wrexham), CH5 (Connah's Quay) (ONS Postcode Directory via Doogal). A pro covering LL12 may well cover these too, so it's worth asking.
How many homes are in LL12?
About 12,037 households and 28,346 residents at the 2011 Census, across 889 active postcodes (Doogal / ONS Postcode Directory).
Which council area is LL12 in?
LL12 sits in Flintshire, Wrexham (postcodes.io). Parliamentary constituency: Alyn and Deeside, Wrexham.
📊 The numbers behind this page
- Postcode district
- LL12 1
- Areas covered
- Wrexham, Caergwrle, Cefn-y-Bedd, Cymau, Gresford, Hope, Llay, Marford, Rossett 2
- Active postcodes
- 889 3
- Households (2011 Census, via Doogal)
- 12,037 2
- Population (2011 Census, via Doogal)
- 28,346 2
- Electoral wards
- Acton and Maesydre, Borras Park, Brymbo, Bryn Cefn, Caergwrle, Garden Village, Gresford East and West, Grosvenor … 4
- Parliamentary constituencies
- Alyn and Deeside, Wrexham 4
- Local authority
- Flintshire, Wrexham 4
- Households heated by mains gas only (Wrexham built-up area)
- 82.1% 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.