Brentwood · CM15

Gas safety certificate in CM15 (Brentwood)? We'll point you the right way.

Covering Brentwood, Doddinghurst, Kelvedon Hatch, Mountnessing, Shenfield, Stondon Massey, including Blackmore & Doddinghurst, Brentwood North, Brentwood South. Find Gas Safe registered engineers nearby.

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Request a gas safety certificate in CM15 (Brentwood)

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Request a gas safety certificate in CM15 (Brentwood)

How to check a gas safety engineer is registered: see the Brentwood page.

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CM15 (Brentwood) in a nutshell

CM15 covers Brentwood, Doddinghurst, Kelvedon Hatch, Mountnessing, Shenfield, Stondon Massey, in Brentwood and Epping Forest. Give your full postcode when you ask for quotes, so the pro can confirm they cover your street.

Local tips for CM15

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Two councils in one district

CM15 is split between Brentwood and Epping Forest. Some councils run their own landlord licensing, so check which one your home is in.

Where's this from?postcodes.io (ONSPD) local authority
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Give your full postcode

CM15 stretches across Blackmore & Doddinghurst, Brentwood North, Brentwood South and more, so give your full postcode, not just 'CM15', when you ask for quotes.

Where's this from?postcodes.io (ONSPD) wards
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Mostly mains gas round here

Most homes in Brentwood run on mains gas, so a standard boiler-and-hob check is what most people need.

Where's this from?ONS Census 2021, Brentwood: 80.4% mains gas only
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New to gas safety certificates? Here's what to expect, how to get ready and what it costs, in plain English. Read the quick guide →

England 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 Brentwood page. Always double-check on GOV.UK.

Next door to CM15

CM14 · BrentwoodCM13 · BrentwoodCM4 · BlackmoreRM3 · Harold WoodCM12 · Billericay – WestRM14 · Upminster

← Gas safety (CP12) across Brentwood · all areas

Frequently asked questions

Which areas does CM15 cover?

CM15 (Brentwood, Doddinghurst, Kelvedon Hatch, Mountnessing, Shenfield, Stondon Massey) includes the wards of Blackmore & Doddinghurst, Brentwood North, Brentwood South, Brizes, Stondon Massey & South Weald, Ingatestone, Fryerning & Mountnessing, Pilgrims Hatch, Rural East, Shenfield (ONS Postcode Directory via postcodes.io).

Which postcode districts are next to CM15?

Neighbouring districts include CM14 (Brentwood), CM13 (Brentwood), CM4 (Blackmore), RM3 (Harold Wood), CM12 (Billericay – West) (ONS Postcode Directory via Doogal). A pro covering CM15 may well cover these too, so it's worth asking.

How many homes are in CM15?

About 9,296 households and 23,277 residents at the 2011 Census, across 596 active postcodes (Doogal / ONS Postcode Directory).

Which council area is CM15 in?

CM15 sits in Brentwood, Epping Forest (postcodes.io). Parliamentary constituency: Brentwood and Ongar.

📊 The numbers behind this page
Postcode district
CM15 1
Areas covered
Brentwood, Doddinghurst, Kelvedon Hatch, Mountnessing, Shenfield, Stondon Massey 2
Active postcodes
596 3
Households (2011 Census, via Doogal)
9,296 2
Population (2011 Census, via Doogal)
23,277 2
Electoral wards
Blackmore & Doddinghurst, Brentwood North, Brentwood South, Brizes, Stondon Massey & South Weald, Ingatestone, Fryerning & Mountnessing, Pilgrims Hatch, Rural East, Shenfield 4
Parliamentary constituencies
Brentwood and Ongar 4
Local authority
Brentwood, Epping Forest 4
Households heated by mains gas only (Brentwood built-up area)
80.4% 5
  1. ONS Postcode Directory
  2. Doogal
  3. Doogal / ONSPD
  4. postcodes.io
  5. ONS Census 2021

Made with open data. See where it all comes from. Updated 26 October 2026.