Blackwood · NP12

Plumbing compliance check in NP12 (Blackwood)? We'll point you the right way.

Covering Blackwood, Pontllanfraith, Wyllie, including Aberbargoed and Bargoed, Abercarn, Argoed. Find plumbers nearby.

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NP12 (Blackwood) in a nutshell

NP12 covers Blackwood, Pontllanfraith, Wyllie, in Caerphilly. Give your full postcode when you ask for quotes, so the pro can confirm they cover your street.

Local tips for NP12

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Caerphilly council area

NP12 is in Caerphilly's area. Some councils run their own landlord licensing, so it's worth checking theirs.

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

NP12 stretches across Aberbargoed and Bargoed, Abercarn, Argoed and more, so give your full postcode, not just 'NP12', when you ask for quotes.

Where's this from?postcodes.io (ONSPD) wards
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Own your home? This is for you too.

It's not just for landlords. Homeowners and buyers use these checks for peace of mind too.

Where's this from?ONS Census 2021, Blackwood: 69.1% owner-occupied
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New to plumbing compliance checks? Here's what to expect, how to get ready and what it costs, in plain English. Read the quick guide →

Wales landlord rules: quick version

  • Fit to live in: keep water, drainage and heating in repair.
  • Legionella: assess the risk.

More detail on the Blackwood page. Always double-check on GOV.WALES.

Next door to NP12

CF82 · HengoedCF81 · BargoedNP11 · North-western NewportNP24 · New TredegarCF83 · CaerphillyCF46 · Treharris

← Plumbing & water compliance across Blackwood · all areas

Frequently asked questions

Which areas does NP12 cover?

NP12 (Blackwood, Pontllanfraith, Wyllie) includes the wards of Aberbargoed and Bargoed, Abercarn, Argoed, Blackwood, Cefn Fforest and Pengam, Crumlin, Maesycwmmer, Newbridge, New Tredegar, Penmaen, Pontllanfraith, St Cattwg, Ynysddu (ONS Postcode Directory via postcodes.io).

Which postcode districts are next to NP12?

Neighbouring districts include CF82 (Hengoed), CF81 (Bargoed), NP11 (North-western Newport) (ONS Postcode Directory via Doogal). A pro covering NP12 may well cover these too, so it's worth asking.

How many homes are in NP12?

About 13,800 households and 33,802 residents at the 2011 Census, across 904 active postcodes (Doogal / ONS Postcode Directory).

Which council area is NP12 in?

NP12 sits in Caerphilly (postcodes.io). Parliamentary constituency: Blaenau Gwent and Rhymney, Caerphilly, Newport West and Islwyn.

📊 The numbers behind this page
Postcode district
NP12 1
Areas covered
Blackwood, Pontllanfraith, Wyllie 2
Active postcodes
904 3
Households (2011 Census, via Doogal)
13,800 2
Population (2011 Census, via Doogal)
33,802 2
Electoral wards
Aberbargoed and Bargoed, Abercarn, Argoed, Blackwood, Cefn Fforest and Pengam, Crumlin, Maesycwmmer, Newbridge … 4
Parliamentary constituencies
Blaenau Gwent and Rhymney, Caerphilly, Newport West and Islwyn 4
Local authority
Caerphilly 4
Households in converted/shared houses (Blackwood built-up area)
0.6% 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.