Heathfield, East Sussex · TN21

Gas safety certificate in TN21 (Heathfield)? We'll point you the right way.

Covering Heathfield, including Burwash & the Weald, Catsfield & Crowhurst, Chiddingly, East Hoathly & Waldron. Find Gas Safe registered engineers nearby.

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Request a gas safety certificate in TN21 (Heathfield)

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Request a gas safety certificate in TN21 (Heathfield)

How to check a gas safety engineer is registered: see the Heathfield, East Sussex page.

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TN21 (Heathfield) in a nutshell

TN21 covers Heathfield, in Rother and Wealden. Give your full postcode when you ask for quotes, so the pro can confirm they cover your street.

Local tips for TN21

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Two councils in one district

TN21 is split between Rother and Wealden. 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

TN21 stretches across Burwash & the Weald, Catsfield & Crowhurst, Chiddingly, East Hoathly & Waldron and more, so give your full postcode, not just 'TN21', 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 Heathfield, East Sussex run on mains gas, so a standard boiler-and-hob check is what most people need.

Where's this from?ONS Census 2021, Heathfield, East Sussex: 77.3% 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 Heathfield, East Sussex page. Always double-check on GOV.UK.

Next door to TN21

TN20 · MayfieldBN27 · HailshamTN2 · Royal Tunbridge WellsBN26 · PolegateTN3 · Langton GreenTN6 · Black Hill

← Gas safety (CP12) across Heathfield, East Sussex · all areas

Frequently asked questions

Which areas does TN21 cover?

TN21 (Heathfield) includes the wards of Burwash & the Weald, Catsfield & Crowhurst, Chiddingly, East Hoathly & Waldron, Framfield & Cross-in-Hand, Heathfield North, Heathfield South, Hellingly, Horam & Punnetts Town, Mayfield & Five Ashes (ONS Postcode Directory via postcodes.io).

Which postcode districts are next to TN21?

Neighbouring districts include TN20 (Mayfield), BN27 (Hailsham), TN2 (Royal Tunbridge Wells), BN26 (Polegate), TN3 (Langton Green) (ONS Postcode Directory via Doogal). A pro covering TN21 may well cover these too, so it's worth asking.

How many homes are in TN21?

About 6,803 households and 16,184 residents at the 2011 Census, across 713 active postcodes (Doogal / ONS Postcode Directory).

Which council area is TN21 in?

TN21 sits in Rother, Wealden (postcodes.io). Parliamentary constituency: Bexhill and Battle, Sussex Weald.

📊 The numbers behind this page
Postcode district
TN21 1
Areas covered
Heathfield 2
Active postcodes
713 3
Households (2011 Census, via Doogal)
6,803 2
Population (2011 Census, via Doogal)
16,184 2
Electoral wards
Burwash & the Weald, Catsfield & Crowhurst, Chiddingly, East Hoathly & Waldron, Framfield & Cross-in-Hand, Heathfield North, Heathfield South, Hellingly, Horam & Punnetts Town … 4
Parliamentary constituencies
Bexhill and Battle, Sussex Weald 4
Local authority
Rother, Wealden 4
Households heated by mains gas only (Heathfield, East Sussex built-up area)
77.3% 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.