Immingham · DN40

Gas safety certificate in DN40 (North Killingholme)? We'll point you the right way.

Covering North Killingholme, South Killingholme, Habrough, Immingham, East Halton, including Ferry. Find Gas Safe registered engineers nearby.

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Request a gas safety certificate in DN40 (North Killingholme)

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Request a gas safety certificate in DN40 (North Killingholme)

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DN40 (North Killingholme) in a nutshell

DN40 covers North Killingholme, South Killingholme, Habrough, Immingham, East Halton, in North East Lincolnshire and North Lincolnshire. Give your full postcode when you ask for quotes, so the pro can confirm they cover your street.

Local tips for DN40

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Two councils in one district

DN40 is split between North East Lincolnshire and North Lincolnshire. 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

DN40 stretches across Ferry, Immingham, so give your full postcode, not just 'DN40', 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 Immingham run on mains gas, so a standard boiler-and-hob check is what most people need.

Where's this from?ONS Census 2021, Immingham: 86.4% 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.

Always double-check on GOV.UK.

Next door to DN40

DN41 · HealingDN39 · CroxtonDN37 · Ashby-cum-FenbyDN34 · GrimsbyDN31 · GrimsbyHU12 · Hedon

all areas

Frequently asked questions

Which areas does DN40 cover?

DN40 (North Killingholme, South Killingholme, Habrough, Immingham, East Halton) includes the wards of Ferry, Immingham (ONS Postcode Directory via postcodes.io).

Which postcode districts are next to DN40?

Neighbouring districts include DN41 (Healing), DN39 (Croxton), DN37 (Ashby-cum-Fenby), DN34 (Grimsby), DN31 (Grimsby) (ONS Postcode Directory via Doogal). A pro covering DN40 may well cover these too, so it's worth asking.

How many homes are in DN40?

About 5,285 households and 12,234 residents at the 2011 Census, across 456 active postcodes (Doogal / ONS Postcode Directory).

Which council area is DN40 in?

DN40 sits in North East Lincolnshire, North Lincolnshire (postcodes.io). Parliamentary constituency: Brigg and Immingham.

📊 The numbers behind this page
Postcode district
DN40 1
Areas covered
North Killingholme, South Killingholme, Habrough, Immingham, East Halton 2
Active postcodes
456 3
Households (2011 Census, via Doogal)
5,285 2
Population (2011 Census, via Doogal)
12,234 2
Electoral wards
Ferry, Immingham 4
Parliamentary constituencies
Brigg and Immingham 4
Local authority
North East Lincolnshire, North Lincolnshire 4
Households heated by mains gas only (Immingham built-up area)
86.4% 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.