St Albans · AL2
Gas safety certificate in AL2 (St Albans)? We'll point you the right way.
Covering St Albans, Bricket Wood, Colney Street, Frogmore, London Colney, Napsbury, Park Street, Potters Crouch, Chiswell Green, including Aldenham West, Cunningham, Hill End. Find Gas Safe registered engineers nearby.
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How to check a gas safety engineer is registered: see the St Albans page.
AL2 (St Albans) in a nutshell
AL2 covers St Albans, Bricket Wood, Colney Street, Frogmore, London Colney, Napsbury, Park Street, Potters Crouch, Chiswell Green, in Hertsmere and St Albans. Give your full postcode when you ask for quotes, so the pro can confirm they cover your street.
Local tips for AL2
Two councils in one district
AL2 is split between Hertsmere and St Albans. 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
AL2 stretches across Aldenham West, Cunningham, Hill End and more, so give your full postcode, not just 'AL2', when you ask for quotes.
Where's this from?
postcodes.io (ONSPD) wardsMostly mains gas round here
Most homes in St Albans run on mains gas, so a standard boiler-and-hob check is what most people need.
Where's this from?
ONS Census 2021, St Albans: 80.1% 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 St Albans page. Always double-check on GOV.UK.
Next door to AL2
Frequently asked questions
Which areas does AL2 cover?
AL2 (St Albans, Bricket Wood, Colney Street, Frogmore, London Colney, Napsbury, Park Street, Potters Crouch, Chiswell Green) includes the wards of Aldenham West, Cunningham, Hill End, London Colney, Park Street, Shenley, Sopwell, St Stephen, Verulam (ONS Postcode Directory via postcodes.io).
Which postcode districts are next to AL2?
Neighbouring districts include AL1 (St Albans), WD7 (Shenley), AL4 (St Albans), AL3 (St Albans), WD25 (Garston) (ONS Postcode Directory via Doogal). A pro covering AL2 may well cover these too, so it's worth asking.
How many homes are in AL2?
About 9,380 households and 23,335 residents at the 2011 Census, across 737 active postcodes (Doogal / ONS Postcode Directory).
Which council area is AL2 in?
AL2 sits in Hertsmere, St Albans (postcodes.io). Parliamentary constituency: Harpenden and Berkhamsted, Hertsmere, St Albans.
📊 The numbers behind this page
- Postcode district
- AL2 1
- Areas covered
- St Albans, Bricket Wood, Colney Street, Frogmore, London Colney, Napsbury, Park Street, Potters Crouch, Chiswell Green 2
- Active postcodes
- 737 3
- Households (2011 Census, via Doogal)
- 9,380 2
- Population (2011 Census, via Doogal)
- 23,335 2
- Electoral wards
- Aldenham West, Cunningham, Hill End, London Colney, Park Street, Shenley, Sopwell, St Stephen … 4
- Parliamentary constituencies
- Harpenden and Berkhamsted, Hertsmere, St Albans 4
- Local authority
- Hertsmere, St Albans 4
- Households heated by mains gas only (St Albans built-up area)
- 80.1% 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.