There are 2,774 active companies in the window cleaning services sector in the UK (SIC code 81221). This sector falls under Section N — Administrative and support service activities — of the UK Standard Industrial Classification. The sector has a relatively low 12.7% dissolution rate — 2,774 of 3,462 registrations remain active. The sector is experiencing rapid growth, with 235.2% of active businesses incorporated since 2020 — indicating strong recent demand. 112% of companies were formed after 2010, marking this as a sector with predominantly recent entrants. The average company age in this sector is 6.5 years. London leads with 8% of companies in this sector. Companies in this sector hold 29 government contracts valued at £7.4M.
Source: Companies House register via UVAGATRON, October 2026
A rapidly growing sector with 235.2% of active companies formed since 2020.
The window cleaning services sector has a <Link href="/glossary/company-dissolution">12.7% dissolution rate</Link>. The average active company in this sector is 6.5 years old. Geographic concentration: 8% in LONDON.
Companies in the window cleaning services sector have been awarded 29 government contracts worth £7.4M in total.
There are 2,774 active companies classified under SIC code 81221 (Window cleaning services) in the UK, out of 3,462 total registered.
SIC code 81221 stands for "Window cleaning services". It belongs to Section N — Administrative and support service activities of the UK Standard Industrial Classification.
The largest concentrations are in LONDON (229), NORMANTON (43), GLASGOW (36).
The average active window cleaning services company in the UK is 6.5 years old, with the oldest registration dating back to 1958.
Our database contains 20,764 data signals across 10 categories for active window cleaning services companies. The largest category is Governance with 11,462 signals from 4 government sources.
5.9M companies, 50M+ signals from 53 government sources. Risk scores, director networks, entity analysis.