Plumbing, heat and air-conditioning installation: UK companies
46,802 live UK companies list plumbing, heat and air-conditioning installation as their main trade, or 0.8% of the register. It ranks 18th among the 60 trades we cover. 4,699 of those companies were formed in 2025, against 1,670 still live from 2015. 3,577 (7.6%) have a proposal to strike off on file, close to the UK figure of 7.3%.
Where they're registered
Where this trade is unusually common
The town's share of this trade, compared with its share of all UK companies.
By year formed
Only companies still live are counted, so older years look smaller. 2026 stops on 1 November 2026.
20122026
See every year as a table
| Year | Live companies |
|---|---|
| 2012 | 1,046 |
| 2013 | 1,257 |
| 2014 | 1,481 |
| 2015 | 1,670 |
| 2016 | 1,631 |
| 2017 | 1,946 |
| 2018 | 2,354 |
| 2019 | 2,651 |
| 2020 | 2,259 |
| 2021 | 2,708 |
| 2022 | 2,802 |
| 2023 | 3,238 |
| 2024 | 3,519 |
| 2025 | 4,699 |
| 2026 | 5,219 |
Oldest active companies in this trade
- Porchester HotelFormed 1924
- R.a.marshallFormed 1925
- Sayes & CompanyFormed 1931
- Leybourne UrwinFormed 1935
- MacwhirterFormed 1935
Related by size
- Licensed restaurants
- Maintenance and repair of motor vehicles
- Management of real estate on a fee or contract basis
- Unlicensed restaurants and cafes
- Accounting and auditing activities
- Other building completion and finishing
Trade means the first Standard Industrial Classification code (SIC 43220) a company declares. Companies choose their own codes. Figures come from Companies House on 1 November 2026.