Heating, plumbing and air conditioning firms to acquire in Wales

Name: Heating, plumbing and air conditioning firms to acquire in Wales
Creator: Firmbase
License: https://firmbase.co/terms

Updated 9 November 2026

Looking to acquire a heating, plumbing or air conditioning firm in Wales? Firmbase ranks 187 heating, plumbing and air conditioning firms using public company information to help buyers prioritise firms for research and potential outreach. The Approach Score ranks firms using public signals including director age and tenure, ownership, business scale, financial strength and recent changes. These firms are not listed for sale, and the ranking does not indicate that an owner is considering a sale.

The median firm has 8 staff and has been in business for 12 years. Looking beyond Wales? Explore the full UK list of heating, plumbing and air conditioning firms.

187

Firms

UK 4,196

26%

Every director 55+

UK 19%

40%

Held 75%+ by one person

UK 31%

Median years in business

UK 14

Median headcount

UK 8

£500k to £1m

Median turnover band

UK £500k to £1m · includes our estimates

Towns with the most firms

Cardiff 67 firms
Swansea 40 firms

The first 25 firms, in Approach Score order

Rank	Firm	Approach Score	The facts behind the score
1	TT Drainage ST Asaph, Denbighshire	Approach Score 92/100	Director aged 60-64 · in post since 2003 1 individual holds 75%+ · independent More about this firm 13 staff · turnover est. £1.7m Net assets £1m (Oct 2025) Director resigned Jan 2026 Company no. 04836251 · Companies House ttdrainage.co.uk
2	T T Hall Plumbing and Heating Wrexham	Approach Score 86/100	Longest in post since 2002 2 individuals hold 75%+ · independent More about this firm 6 staff · turnover est. £343k Net assets £27k (Mar 2026) Director resigned May 2025 · PSC register changed Sep 2026 Company no. 04472085 · Companies House
3	Elite Heating Services (wales) Swansea	Approach Score 86/100	Director aged 65-69 · in post since 2002 2 individuals hold 75%+ · independent More about this firm 5 staff · turnover est. £527k Net assets £51k (Jun 2025) Company no. 04465468 · Companies House eliteheatingwales.co.uk
4	J.D. Heating and Plumbing and Mechanical Services Cardiff, South Glamorgan	Approach Score 85/100	Director aged 60-64 · in post since 1998 2 individuals hold 50%+ · independent More about this firm 16 staff · turnover est. £1.9m Net assets £324k (Mar 2024) Charge satisfied Mar 2026 Company no. 03530987 · Companies House
5	Geoff Tremblett Plumbing & Heating Brynsadler, Pontyclun, Rhondda Cynon Taff	Approach Score 84/100	Longest in post since 2014 2 individuals hold 50%+ · independent More about this firm 8 staff · turnover est. £1.7m Net assets £737k (Mar 2025) PSC register changed Mar 2025 Company no. 08957375 · Companies House
6	Control and Service Technology Bridgend, MID Glamorgan	Approach Score 83/100	Director aged 60-64 · in post since 2003 2 individuals hold 75%+ · independent More about this firm 9 staff · turnover est. £778k Net assets £339k (Mar 2025) Company no. 04707210 · Companies House controlandservice.co.uk
7	WYN Thomas Heating Lampeter	Approach Score 83/100	In post since 2005 1 individual holds 75%+ · independent More about this firm 5 staff · turnover est. £544k Net assets £287k (Feb 2025) Company no. 05366071 · Companies House
8	Highgate Water Solutions Llangadog, Carmarthenshire	Approach Score 83/100	1 director aged 70 or over, 1 aged 60-64 · longest in post since 2004 1 individual holds 75%+ · independent More about this firm 6 staff · turnover est. £309k Net assets £24k (Jun 2025) Company no. 05153929 · Companies House highgatewatersolutions.co.uk
9	Heatshine Cardigan	Approach Score 83/100	1 director aged 70 or over, 1 aged 65-69, 1 aged 55-59 · longest in post since 2004 1 individual holds 75%+ · independent More about this firm 15 staff · turnover est. £1.2m Net assets £148k (Apr 2025) Company no. 05302023 · Companies House heatshine.com
10	Phillips Price Services Newport	Approach Score 83/100	Director aged 70 or over · in post since 2021 1 individual holds 75%+ · independent More about this firm 5 staff · turnover est. £803k Net assets £195k (Dec 2025) Director resigned Nov 2025 Company no. 07124442 · Companies House ppswales.com
11	Peter Plumbing Welshpool, Powys	Approach Score 83/100	In post since 2006 1 individual holds 75%+ · independent More about this firm 5 staff · turnover est. £553k Net assets £110k (Mar 2026) Company no. 05747290 · Companies House peterholdingplumbingltd.co.uk
12	GAS Services Wales Swansea	Approach Score 82/100	Director aged 60-64 · in post since 2001 2 individuals hold 75%+ · independent More about this firm 6 staff · turnover est. £402k Net assets £4k (Jul 2025) Company no. 04323644 · Companies House gasserviceswales.com
13	Gwres Glas CYF. Y Trallwng, Powys	Approach Score 82/100	Director aged 60-64 · in post since 2006 2 individuals hold 50%+ · independent More about this firm 7 staff · turnover est. £580k Net assets £921 (Mar 2025) Company no. 05966315 · Companies House gwresglas.co.uk
14	Just in Time Plumbing, Heating & Building Services Swansea	Approach Score 81/100	Director aged 55-59 · in post since 2006 1 individual holds 75%+ · independent More about this firm 19 staff · turnover est. £3.6m Net assets £1.7m (Mar 2024) Company no. 05743620 · Companies House justintimeltd.co.uk
15	T & C Maintenance Services Pontypool, Torfaen	Approach Score 80/100	1 director aged 60-64, 1 aged 55-59, 1 aged under 45 · longest in post since 2011 1 individual holds 75%+ · independent More about this firm 10 staff · turnover est. £555k Net assets £121k (Mar 2025) Director resigned May 2025 Company no. 07570470 · Companies House tandcservices.co.uk
16	Yates Renewable Energies Limited Llandudno Junction, Conwy	Approach Score 80/100	In post since 2006 1 individual holds 75%+ · independent More about this firm 12 staff · turnover est. £2m Net assets £861k (Sep 2025) Company no. 05941138 · Companies House yatesrenewable-energies.co.uk
17	DES Clarke & SON Llandovery	Approach Score 79/100	In post since 2022 1 individual holds 75%+ · independent More about this firm 5 staff · turnover est. £345k Net assets £65k (Mar 2025) Company no. 13984866 · Companies House
18	A J Pipeline (anglesey) Llangefni, Anglesey	Approach Score 79/100	2 directors aged 60-64 · longest in post since 2013 2 individuals hold 50%+ · independent More about this firm 5 staff · turnover est. £664k Net assets £361k (Jul 2025) Company no. 08423455 · Companies House
19	Emanuel Heating & Plumbing Services Llanelli, Carmarthenshire	Approach Score 78/100	Longest in post since 2017 2 individuals hold 75%+ · independent More about this firm 5 staff · turnover est. £1.6m Net assets £555k (Jul 2025) Company no. 10820326 · Companies House
20	DI Jones Heating Engineers Ruthin, Denbighshire	Approach Score 77/100	In post since 2013 1 individual holds 75%+ · independent More about this firm 7 staff · turnover est. £676k Net assets £272k (Jul 2025) Company no. 08647644 · Companies House agaliving.com/dijones
21	Lewington & Templer Bangor, Gwynedd	Approach Score 77/100	Longest in post since 2007 2 individuals hold 50%+ · independent More about this firm 9 staff · turnover est. £587k Net assets £112k (Sep 2025) Company no. 06215346 · Companies House
22	RS Energy Pontypridd, MID Glamorgan A director sits on 4 or more companies	Approach Score 76/100	2 directors aged 55-59 · longest in post since 2013 2 individuals hold 50%+ · independent More about this firm 12 staff · turnover est. £1.4m Net assets £231k (Jun 2025) Company no. 08588352 · Companies House rsenergy.uk
23	Resitech Design & Build Pontypool, Torfaen	Approach Score 76/100	We hold older figures than Companies House Director aged 65-69 · in post since 2009 1 individual holds 75%+ · independent More about this firm 8 staff · turnover est. £727k Net assets £261k (Sep 2023) · newer accounts made up to Sep 2025 Company no. 06938988 · Companies House
24	GGT Thomas and Sons Ltd Haverfordwest, Pembrokeshire	Approach Score 76/100	Longest in post since 2001 Independent More about this firm 18 staff · turnover est. £1.8m Net assets £560k (Mar 2025) Company no. 04190827 · Companies House ggt-thomas.co.uk
25	PRO-GAS South Wales Cardiff	Approach Score 75/100	Director aged 60-64 · in post since 2015 1 individual holds 75%+ · independent More about this firm 5 staff · turnover est. £468k Net assets £11k (Mar 2024) Company no. 09559987 · Companies House

162 more firms are in the list, in Approach Score order.

You're seeing the first 25. Buy all 187 for £799 + VAT, with the facts behind each score, director names, shareholders and financials.

Buy the list of all 187 firms, with director names, ages and shareholders

Each row comes with the facts behind its score, financials with dates and contact details.

What's in the file

One row per firm, in Approach Score order, as Excel + CSV.

It holds the facts behind each score, points for each part of the score, financials with dates, publicly available contact details, where identified, director names and named shareholders.

Some people with significant control appear as Other individual, with no further detail. Director email lookups are not included.

How this list is filtered

5 or more staff, from filed headcount or our estimate where none is filed.
Registered office in Wales.

See every filter on the UK list

How this list is built

The Approach Score ranks firms mainly on public Companies House information about owner tenure and age, ownership, size, financial strength and recent register changes.

Firms with higher scores appear first in each list.

Use the ranking to order research, then check each business directly.

Read how the Approach Score works

What it does not mean

No firm here is for sale, and the score says nothing about any owner's plans.

At least 95% of the firms where we hold directors had them checked in or after November 2026.

What we do not cover

Regulatory information is not included in this list. Buyers should check the relevant register as part of their due diligence. For gas work, check businesses and engineers on the Gas Safe Register. For relevant refrigeration and air conditioning work, verify company F-gas certification with its issuing body, using registers such as REFCOM Active Certificates.

Why age bands but no people's names

Age bands come from the month and year of birth on Companies House. This page shows no exact ages and no people's names. Both come with the purchased list. The band edges from 45 to 65 are the ages where the score changes. A row shows no age bands when a director's surname is in the firm's name, its group's name or its website. Those directors' ages still count towards the score.

Is this your firm?

You can ask us to take it off every acquisition page, and out of every list we sell after that. Give us your name and work email, and we send you a link to confirm. If your email address is on the firm's own website domain, the firm comes off once you confirm. If it is not, a person reviews your request first. A list already sold stays with its buyer.

To have personal data erased, see our privacy policy.

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The standard Firmbase list

Plumbing & Heating Companies in the UK