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Data / UK companies / Plumbing, heat and air-conditioning installation / Wales

Plumbing, heat and air-conditioning installation companies in Wales: 1,859 live companies

Updated November 7, 2026. Source: Companies House Free Company Data Product.

1,859 live companies in Wales list SIC code 43220, plumbing, heat and air-conditioning installation, in the Companies House snapshot dated 1 November 2026. 241 were incorporated in the last 12 months and 243 have an accounts due date that had passed.

The request: Every company in Wales with SIC code 43220, plumbing, heat and air-conditioning installation, incorporated since 2025, with registered address and accounts due dates. $10 of work on sign-up, no card.

Get plumbing, heat and air-conditioning installation companies in WalesWatch new plumbing, heat and air-conditioning installation incorporations in Wales

SpecStream is the live web data engine for teams and agents. It reads the Companies House free company data every month, and this page is that reading. Ask for the companies you track by industry, place or incorporation date and each new company, strike off proposal or overdue accounts date arrives in your sheet, CRM, Slack or agent.

  • 1,859Live companies
  • 241Incorporated in the last 12 months
  • 243Accounts overdue
  • 303Strike off proposed

Incorporations per year

Companies incorporated in each year that are still live in the 1 November 2026 snapshot. Companies that closed earlier are not counted, so older years read low.

Year incorporatedLive companies
2022120
2023145
2024158
2025200
2026 so far210

Towns

TownLive companies
Cardiff417
Swansea195
Newport105
Wrexham74
Bridgend63
Pontypridd48
Pontypool46
Neath40
Caerphilly37
Llanelli35
Carmarthen32
Cwmbran31
Merthyr Tydfil27
Barry25
Blackwood25
Port Talbot24
St Asaph22
Rhyl21
Colwyn Bay18
Tredegar18
Bangor17
Pontyclun14
Ammanford13
Monmouth13
Abergele12

Newest plumbing, heat and air-conditioning installation companies in Wales

Newest first. Each row links to the Companies House record.

CompanyNumberIncorporatedTownAccounts dueStatusSource
Nova Plumbing and Heating (Swansea) Ltd1755011629 October 2026Swansea29 July 2028Activefind-and-update.company-information.service.gov.uk
Full Circle Connect Limited1754831328 October 2026Cardiff28 July 2028Activefind-and-update.company-information.service.gov.uk
JTC Plumbing, Heating & Bathrooms Ltd1754516127 October 2026Fishguard27 July 2028Activefind-and-update.company-information.service.gov.uk
Climagen Ltd1754238726 October 2026Swansea26 July 2028Activefind-and-update.company-information.service.gov.uk
PGC Plumbing Gas Care Ltd1753725423 October 2026Caerphilly23 July 2028Activefind-and-update.company-information.service.gov.uk
Swansea Air Conditioning Ltd1752511816 October 2026Swansea16 July 2028Activefind-and-update.company-information.service.gov.uk
HCV Ltd1752459115 October 2026Porth15 July 2028Activefind-and-update.company-information.service.gov.uk
Sr Plumbing & Heating (Lincoln) Limited1752333715 October 2026Pengam15 July 2028Activefind-and-update.company-information.service.gov.uk
24/7 Drain Rescue Ltd1751862813 October 2026Cardiff13 July 2028Strike off proposedfind-and-update.company-information.service.gov.uk
OB Plumbing and Heating (NW) Limited174999305 October 2026Colwyn Bay5 July 2028Activefind-and-update.company-information.service.gov.uk
Airmech Solutions Ltd1749171930 September 2026Pontypool30 June 2028Activefind-and-update.company-information.service.gov.uk
Baths, Boilers & Beyond Ltd1748917929 September 2026Newport29 June 2028Activefind-and-update.company-information.service.gov.uk
Econiq Air Ltd1748735429 September 2026Port Talbot29 June 2028Activefind-and-update.company-information.service.gov.uk
Dragon Water Services Ltd1748463828 September 2026Treharris28 June 2028Activefind-and-update.company-information.service.gov.uk
Radnor Renewables Limited1748414927 September 2026Brecon27 June 2028Activefind-and-update.company-information.service.gov.uk
LMG Independent Bath Co Limited1748400227 September 2026Port Talbot27 June 2028Activefind-and-update.company-information.service.gov.uk
Eidolon Renovations Ltd1748240825 September 2026Swansea25 June 2028Activefind-and-update.company-information.service.gov.uk
Beza Home Climate Ltd1748183325 September 2026Cardiff25 June 2028Activefind-and-update.company-information.service.gov.uk
Vidi Aquam Ltd1747371622 September 2026Dinas Powys22 June 2028Activefind-and-update.company-information.service.gov.uk
Purple Plumbers Limited1747350822 September 2026Bangor22 June 2028Activefind-and-update.company-information.service.gov.uk
Bee Green Plumbing Solutions Ltd1747221121 September 2026Caerphilly21 June 2028Activefind-and-update.company-information.service.gov.uk
Ccgreenerenergy Ltd1746893719 September 2026Llangollen19 June 2028Activefind-and-update.company-information.service.gov.uk
JDR Cooling and Heating Solutions Ltd1746890319 September 2026Cardiff19 June 2028Activefind-and-update.company-information.service.gov.uk
Arc Air Solutions Ltd1746139315 September 2026Rhyl15 June 2028Activefind-and-update.company-information.service.gov.uk
Greenworld-Engineering Ltd1745728314 September 2026Llanfairpwllgwyngyll14 June 2028Activefind-and-update.company-information.service.gov.uk
Iain Smith Plumbing and Heating Limited1745657714 September 2026Wrexham14 June 2028Activefind-and-update.company-information.service.gov.uk
E Thomas Plumbing and Heating Plymio a Gwresogi CYF1745231711 September 2026Pwllheli11 June 2028Activefind-and-update.company-information.service.gov.uk
DWR Plumbing Ltd174497259 September 2026Cardiff9 June 2028Activefind-and-update.company-information.service.gov.uk
JDP Plumbing & Property Maintenance Ltd174492289 September 2026Treharris9 June 2028Activefind-and-update.company-information.service.gov.uk
Climate Control Cardiff Ltd174390894 September 2026Cardiff4 June 2028Activefind-and-update.company-information.service.gov.uk
WYE Valley Plumbing Heating Renewables Limited174388584 September 2026Brecon4 June 2028Activefind-and-update.company-information.service.gov.uk
HJC Plumbing & Heating Ltd174386134 September 2026Llandysul4 June 2028Activefind-and-update.company-information.service.gov.uk
Mansfield Air Conditioning Ltd174357433 September 2026Colwyn Bay3 June 2028Activefind-and-update.company-information.service.gov.uk
Laker Maintenance Ltd174350683 September 2026Neath3 June 2028Activefind-and-update.company-information.service.gov.uk
James Bros Plumbing & Electrical Ltd174340502 September 2026Casnewydd2 June 2028Activefind-and-update.company-information.service.gov.uk
OCS UK Technical Group Limited174299321 September 2026Cardiff1 June 2028Activefind-and-update.company-information.service.gov.uk
Oasis Plumbing Contractors Ltd1742875431 August 2026Wrexham31 May 2028Activefind-and-update.company-information.service.gov.uk
Air Conditioning & Heat Pumps Limited1742474027 August 2026Swansea27 May 2028Activefind-and-update.company-information.service.gov.uk
MY Boiler Engineer Ltd1742457227 August 2026Newport27 May 2028Activefind-and-update.company-information.service.gov.uk
Amsof Limited1742304226 August 2026Cwmbran26 May 2028Activefind-and-update.company-information.service.gov.uk
Vincent Climate Solutions Ltd1741658624 August 2026Swansea24 May 2028Activefind-and-update.company-information.service.gov.uk
Sonic Solutions NW Ltd1741494522 August 2026Rhyl22 May 2028Activefind-and-update.company-information.service.gov.uk
Blackstone Mechanical Ltd1741262420 August 2026Pontypool20 May 2028Activefind-and-update.company-information.service.gov.uk
RM Blake Climate & Energy Ltd1740994319 August 2026Swansea19 May 2028Activefind-and-update.company-information.service.gov.uk
ECO Climate NW Limited1740780218 August 2026Rhyl18 May 2028Activefind-and-update.company-information.service.gov.uk
A Grigoriou Plumbing & Heating Ltd1740565818 August 2026Penarth18 May 2028Activefind-and-update.company-information.service.gov.uk
Blue Jays Home Services Ltd1740262516 August 2026Swansea16 May 2028Activefind-and-update.company-information.service.gov.uk
Days Ventilation Solutions Ltd1739443611 August 2026Cwmbran11 May 2028Activefind-and-update.company-information.service.gov.uk
North Wales Sprinklers Ltd1739023410 August 2026Criccieth10 May 2028Activefind-and-update.company-information.service.gov.uk
JMP Gas Plumbing and Heating Ltd173850496 August 2026Pontyclun6 May 2028Activefind-and-update.company-information.service.gov.uk

Contains public sector information licensed under the Open Government Licence v3.0. Counts are of live companies in the Companies House snapshot dated 1 November 2026. The snapshot holds basic company data only: no officers and no persons with significant control. A company is counted under each SIC code it lists, up to four. A region is the part of the UK a postcode area mostly falls in. This page uses Companies House data and is not endorsed by Companies House. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.