Heating, plumbing and air conditioning firms to acquire in Swansea
Updated 9 November 2026
Looking to acquire a heating, plumbing or air conditioning firm in Swansea? Firmbase ranks 40 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 7 staff and has been in business for 10 years. Looking beyond Swansea? Explore the full Wales list of heating, plumbing and air conditioning firms.
40
Firms
UK 4,196
32%
Every director 55+
UK 19%
50%
Held 75%+ by one person
UK 31%
10
Median years in business
UK 14
7
Median headcount
UK 8
£500k to £1m
Median turnover band
UK £500k to £1m · includes our estimates
The first 25 firms, in Approach Score order
| Rank | Firm | Approach Score | The facts behind the score |
|---|---|---|---|
| 1 | Elite Heating Services (wales) Swansea | Approach Score 86/100 |
More about this firm
Company no. 04465468 · Companies House |
| 2 | Highgate Water Solutions Llangadog, Carmarthenshire | Approach Score 83/100 |
More about this firm
Company no. 05153929 · Companies House |
| 3 | GAS Services Wales Swansea | Approach Score 82/100 |
More about this firm
Company no. 04323644 · Companies House |
| 4 | DES Clarke & SON Llandovery | Approach Score 79/100 |
More about this firm
Company no. 13984866 · Companies House |
| 5 | Emanuel Heating & Plumbing Services Llanelli, Carmarthenshire | Approach Score 78/100 |
More about this firm
Company no. 10820326 · Companies House |
| 6 | HUW Jeffreys & SON Llanelli, SIR GAR | Approach Score 73/100 | We hold older figures than Companies House
More about this firm
Company no. 07025696 · Companies House |
| 7 | AMROC Group Swansea | Approach Score 73/100 |
More about this firm
Company no. 05684782 · Companies House |
| 8 | Heat Pump Services Swansea | Approach Score 69/100 | We hold older figures than Companies House
More about this firm
Company no. 06795274 · Companies House |
| 9 | Biosol Renewables Ammanford, Carmarthenshire A director sits on 4 or more companies | Approach Score 68/100 |
More about this firm
Company no. 09067308 · Companies House |
| 10 | Heating and Boilers (dyfed) Newcastle Emlyn, Carmarthenshire | Approach Score 64/100 |
More about this firm
Company no. 01888448 · Companies House |
| 11 | TS GAS Carmarthen, Carmarthenshire | Approach Score 62/100 |
More about this firm
Company no. 08435241 · Companies House |
| 12 | CA Jones & SON West Glamorgan | Approach Score 62/100 |
More about this firm
Company no. 05907762 · Companies House |
| 13 | ASW Energy Services Swansea A director sits on 4 or more companies | Approach Score 59/100 |
More about this firm
Company no. 11986575 · Companies House |
| 14 | SMK Plumbing and Heating Swansea, West Glamorgan | Approach Score 59/100 |
More about this firm
Company no. 09268285 · Companies House |
| 15 | Sharp Plumbing & Heating Carmarthen, Carmarthenshire | Approach Score 58/100 |
More about this firm
Company no. 08393184 · Companies House |
| 16 | Hill Group Swansea | Approach Score 57/100 |
More about this firm
Company no. 04680547 · Companies House |
| 17 | Birds Hill Renewables Carmarthen | Approach Score 57/100 |
More about this firm
Company no. 09442694 · Companies House |
| 18 | DRS FM Services Swansea A director sits on 4 or more companies | Approach Score 55/100 | We hold older figures than Companies House
More about this firm
Company no. 08675176 · Companies House |
| 19 | Osborne Jones Logburners and Stoves Swansea, West Glamorgan | Approach Score 54/100 |
More about this firm
Company no. 14598921 · Companies House |
| 20 | Glow Cross Hands | Approach Score 53/100 |
More about this firm
Company no. 11168456 · Companies House |
| 21 | RJ Medical Gas Services Limited Port Talbot | Approach Score 53/100 |
More about this firm
Company no. 05493964 · Companies House |
| 22 | DW-AIR Swansea | Approach Score 53/100 |
More about this firm
Company no. 11624329 · Companies House |
| 23 | Advanced Heating Wales Swansea | Approach Score 53/100 |
More about this firm
Company no. 02973940 · Companies House |
| 24 | Element Essentials Llandovery, Carmarthenshire | Approach Score 51/100 |
More about this firm
Company no. 09604900 · Companies House |
| 25 | Pesw Neath | Approach Score 51/100 |
More about this firm
Company no. 14844112 · Companies House |
15 more firms are in the list, in Approach Score order.
You're seeing the first 25. Buy all 40 for £799 + VAT, with the facts behind each score, director names, shareholders and financials.
Buy the list of all 40 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 Swansea.
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.
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.
Other areas
Related sectors
The standard Firmbase list
Buy the list of all 40 firms, with director names, ages and shareholders
Each row comes with the facts behind its score, financials with dates and contact details.