Billericay · CM11
Gas safety certificate in CM11 (Billericay – East)? We'll point you the right way.
Covering Billericay – East, Great Burstead, including Billericay East, Burstead, Castledon & Crouch. Find Gas Safe registered engineers nearby.
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Request a gas safety certificate in CM11 (Billericay – East)
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CM11 (Billericay – East) in a nutshell
CM11 covers Billericay – East, Great Burstead, in Basildon and Chelmsford. Give your full postcode when you ask for quotes, so the pro can confirm they cover your street.
Local tips for CM11
Two councils in one district
CM11 is split between Basildon and Chelmsford. 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
CM11 stretches across Billericay East, Burstead, Castledon & Crouch and more, so give your full postcode, not just 'CM11', when you ask for quotes.
Where's this from?
postcodes.io (ONSPD) wardsMostly mains gas round here
Most homes in Billericay run on mains gas, so a standard boiler-and-hob check is what most people need.
Where's this from?
ONS Census 2021, Billericay: 85.1% 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.
Always double-check on GOV.UK.
Next door to CM11
Frequently asked questions
Which areas does CM11 cover?
CM11 (Billericay – East, Great Burstead) includes the wards of Billericay East, Burstead, Castledon & Crouch, South Hanningfield, Stock and Margaretting (ONS Postcode Directory via postcodes.io).
Which postcode districts are next to CM11?
Neighbouring districts include CM12 (Billericay – West), SS15 (Laindon), SS16 (Langdon Hills), SS14 (Basildon), SS12 (Wickford) (ONS Postcode Directory via Doogal). A pro covering CM11 may well cover these too, so it's worth asking.
How many homes are in CM11?
About 7,539 households and 19,283 residents at the 2011 Census, across 453 active postcodes (Doogal / ONS Postcode Directory).
Which council area is CM11 in?
CM11 sits in Basildon, Chelmsford (postcodes.io). Parliamentary constituency: Basildon and Billericay, Maldon.
📊 The numbers behind this page
- Postcode district
- CM11 1
- Areas covered
- Billericay – East, Great Burstead 2
- Active postcodes
- 453 3
- Households (2011 Census, via Doogal)
- 7,539 2
- Population (2011 Census, via Doogal)
- 19,283 2
- Electoral wards
- Billericay East, Burstead, Castledon & Crouch, South Hanningfield, Stock and Margaretting 4
- Parliamentary constituencies
- Basildon and Billericay, Maldon 4
- Local authority
- Basildon, Chelmsford 4
- Households heated by mains gas only (Billericay built-up area)
- 85.1% 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.