Newton Aycliffe · DL5

Gas safety certificate in DL5 (Newton Aycliffe)? We'll point you the right way.

Covering Newton Aycliffe, Heighington, including Aycliffe North & Middridge, Aycliffe South, Heighington & Coniscliffe. Find Gas Safe registered engineers nearby.

Free to use · No sign-up to search · Always check their registration before you book

Request a gas safety certificate in DL5 (Newton Aycliffe)

No gas safety engineer listed for DL5 (Newton Aycliffe) yet. Tell us what you need and we'll find you a registered gas safety engineer, free.

Request a gas safety certificate in DL5 (Newton Aycliffe)

How to check a gas safety engineer is registered: Gas Safe Register.

See what a listing looks like

DL5 (Newton Aycliffe) in a nutshell

DL5 covers Newton Aycliffe, Heighington, in County Durham and Darlington. Give your full postcode when you ask for quotes, so the pro can confirm they cover your street.

Local tips for DL5

🧭

Two councils in one district

DL5 is split between County Durham and Darlington. Some councils run their own landlord licensing, so check which one your home is in.

Where's this from?postcodes.io (ONSPD) local authority
📍

Give your full postcode

DL5 stretches across Aycliffe North & Middridge, Aycliffe South, Heighington & Coniscliffe and more, so give your full postcode, not just 'DL5', when you ask for quotes.

Where's this from?postcodes.io (ONSPD) wards
🔥

Mostly mains gas round here

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

Where's this from?ONS Census 2021, Newton Aycliffe: 84.6% mains gas only
🔥
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.

Always double-check on GOV.UK.

Next door to DL5

DL4 · ShildonDL3 · Darlington WestDL17 · FerryhillDL2 · StaindropDL16 · SpennymoorDL1 · Darlington East

all areas

Frequently asked questions

Which areas does DL5 cover?

DL5 (Newton Aycliffe, Heighington) includes the wards of Aycliffe North & Middridge, Aycliffe South, Heighington & Coniscliffe, Sedgefield (ONS Postcode Directory via postcodes.io).

Which postcode districts are next to DL5?

Neighbouring districts include DL4 (Shildon), DL3 (Darlington West), DL17 (Ferryhill), DL2 (Staindrop) (ONS Postcode Directory via Doogal). A pro covering DL5 may well cover these too, so it's worth asking.

How many homes are in DL5?

About 12,548 households and 29,224 residents at the 2011 Census, across 802 active postcodes (Doogal / ONS Postcode Directory).

Which council area is DL5 in?

DL5 sits in County Durham, Darlington (postcodes.io). Parliamentary constituency: Darlington, Newton Aycliffe and Spennymoor.

📊 The numbers behind this page
Postcode district
DL5 1
Areas covered
Newton Aycliffe, Heighington 2
Active postcodes
802 3
Households (2011 Census, via Doogal)
12,548 2
Population (2011 Census, via Doogal)
29,224 2
Electoral wards
Aycliffe North & Middridge, Aycliffe South, Heighington & Coniscliffe, Sedgefield 4
Parliamentary constituencies
Darlington, Newton Aycliffe and Spennymoor 4
Local authority
County Durham, Darlington 4
Households heated by mains gas only (Newton Aycliffe built-up area)
84.6% 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.