Andover · SO20

Gas safety certificate in SO20 (Stockbridge)? We'll point you the right way.

Covering Stockbridge, including Harewood, Mid Test, St Bartholomew. Find Gas Safe registered engineers nearby.

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Request a gas safety certificate in SO20 (Stockbridge)

No gas safety engineer listed for SO20 (Stockbridge) yet. Tell us what you need and we'll find you a registered gas safety engineer, free.

Request a gas safety certificate in SO20 (Stockbridge)

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

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SO20 (Stockbridge) in a nutshell

SO20 covers Stockbridge, in Test Valley and Winchester. Give your full postcode when you ask for quotes, so the pro can confirm they cover your street.

Local tips for SO20

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Two councils in one district

SO20 is split between Test Valley and Winchester. 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

SO20 stretches across Harewood, Mid Test, St Bartholomew and more, so give your full postcode, not just 'SO20', 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 Andover run on mains gas, so a standard boiler-and-hob check is what most people need.

Where's this from?ONS Census 2021, Andover: 80.2% 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 Andover page. Always double-check on GOV.UK.

Next door to SO20

SP10 · AndoverSO51 · RomseySP11 · LudgershallSO40 · TottonSO52 · North BaddesleySO22 · Badger Farm

← Gas safety (CP12) across Andover · all areas

Frequently asked questions

Which areas does SO20 cover?

SO20 (Stockbridge) includes the wards of Harewood, Mid Test, St Bartholomew, Wonston and Micheldever (ONS Postcode Directory via postcodes.io).

Which postcode districts are next to SO20?

Neighbouring districts include SP10 (Andover), SO51 (Romsey), SP11 (Ludgershall), SO40 (Totton), SO52 (North Baddesley) (ONS Postcode Directory via Doogal). A pro covering SO20 may well cover these too, so it's worth asking.

How many homes are in SO20?

About 3,309 households and 8,119 residents at the 2011 Census, across 346 active postcodes (Doogal / ONS Postcode Directory).

Which council area is SO20 in?

SO20 sits in Test Valley, Winchester (postcodes.io). Parliamentary constituency: Romsey and Southampton North, Winchester.

📊 The numbers behind this page
Postcode district
SO20 1
Areas covered
Stockbridge 2
Active postcodes
346 3
Households (2011 Census, via Doogal)
3,309 2
Population (2011 Census, via Doogal)
8,119 2
Electoral wards
Harewood, Mid Test, St Bartholomew, Wonston and Micheldever 4
Parliamentary constituencies
Romsey and Southampton North, Winchester 4
Local authority
Test Valley, Winchester 4
Households heated by mains gas only (Andover built-up area)
80.2% 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.