42,141 active companies in the UK are classified under plumbing, heat and air-conditioning installation (SIC code 43220). This sector falls under Section F — Construction — of the UK Standard Industrial Classification. The sector has a relatively low 8.9% dissolution rate — 42,141 of 51,098 registrations remain active. The sector is experiencing rapid growth, with 160.2% of active businesses incorporated since 2020 — indicating strong recent demand. 103% of companies were formed after 2010, marking this as a sector with predominantly recent entrants. The average company age in this sector is 8.2 years. 113 large companies, 30 medium-sized firms operate in this sector. London leads with 8% of companies in this sector. Companies in this sector hold 1,365 government contracts valued at £5.7B. The sector's longest-standing company was incorporated in 1911.
Source: Companies House register via UVAGATRON, October 2026
A rapidly growing sector with 160.2% of active companies formed since 2020.
The plumbing, heat and air-conditioning installation sector has a <Link href="/glossary/company-dissolution">8.9% dissolution rate</Link>. The average active company in this sector is 8.2 years old. Geographic concentration: 8% in LONDON.
Companies in the plumbing, heat and air-conditioning installation sector have been awarded 1,365 government contracts worth £5700.0M in total.
There are 42,141 active companies classified under SIC code 43220 (Plumbing, heat and air-conditioning installation) in the UK, out of 51,098 total registered.
SIC code 43220 stands for "Plumbing, heat and air-conditioning installation". It belongs to Section F — Construction of the UK Standard Industrial Classification.
The largest concentrations are in LONDON (3,389), GLASGOW (613), BIRMINGHAM (540).
The average active plumbing, heat and air-conditioning installation company in the UK is 8.2 years old, with the oldest registration dating back to 1911.
Our database contains 337,767 data signals across 11 categories for active plumbing, heat and air-conditioning installation companies. The largest category is Governance with 175,938 signals from 6 government sources.
5.9M companies, 50M+ signals from 53 government sources. Risk scores, director networks, entity analysis.