Holywood · BT18
Gas safety certificate in BT18 (Holywood)? We'll point you the right way.
Covering Holywood, Craigavad, including Belmont, Cultra, Dundonald. Find Gas Safe registered engineers nearby.
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Request a gas safety certificate in BT18 (Holywood)
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Request a gas safety certificate in BT18 (Holywood)
How to check a gas safety engineer is registered: see the Holywood page.
BT18 (Holywood) in a nutshell
BT18 covers Holywood, Craigavad, in Ards and North Down and Belfast and Lisburn and Castlereagh. Give your full postcode when you ask for quotes, so the pro can confirm they cover your street.
Local tips for BT18
Two councils in one district
BT18 is split between Ards and North Down and Belfast and Lisburn and Castlereagh. 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
BT18 stretches across Belmont, Cultra, Dundonald and more, so give your full postcode, not just 'BT18', when you ask for quotes.
Where's this from?
postcodes.io (ONSPD) wardsOff the gas grid? Check they cover it
Lots of homes around Holywood aren't on mains gas, so if you've got an LPG tank or an oil boiler, check the engineer covers it before you book.
Where's this from?
NISRA Census 2021, Holywood: 23.2% oil or tank/bottled gas heatingNorthern Ireland landlord rules: quick version
- Every year: a gas safety check.
- Register: with the Landlord Registration Scheme.
More detail on the Holywood page. Always double-check on nidirect.
Next door to BT18
Frequently asked questions
Which areas does BT18 cover?
BT18 (Holywood, Craigavad) includes the wards of Belmont, Cultra, Dundonald, Garnerville, Holywood, Loughview, Stormont (ONS Postcode Directory via postcodes.io).
Which postcode districts are next to BT18?
Neighbouring districts include BT16 (Dundonald), BT4 (Belfast), BT5 (Belfast), BT3 (Belfast), BT38 (Carrickfergus) (ONS Postcode Directory via Doogal). A pro covering BT18 may well cover these too, so it's worth asking.
How many homes are in BT18?
About 5,552 households and 13,516 residents at the 2011 Census, across 393 active postcodes (Doogal / ONS Postcode Directory).
Which council area is BT18 in?
BT18 sits in Ards and North Down, Belfast, Lisburn and Castlereagh (postcodes.io). Parliamentary constituency: Belfast East, North Down.
📊 The numbers behind this page
- Postcode district
- BT18 1
- Areas covered
- Holywood, Craigavad 2
- Active postcodes
- 393 3
- Households (2011 Census, via Doogal)
- 5,552 2
- Population (2011 Census, via Doogal)
- 13,516 2
- Electoral wards
- Belmont, Cultra, Dundonald, Garnerville, Holywood, Loughview, Stormont 4
- Parliamentary constituencies
- Belfast East, North Down 4
- Local authority
- Ards and North Down, Belfast, Lisburn and Castlereagh 4
- Households heated by mains gas only (Holywood settlement)
- 64.6% 5
- ONS Postcode Directory
- Doogal
- Doogal / ONSPD
- postcodes.io
- NISRA Census 2021
Made with open data. See where it all comes from. Updated 26 October 2026.