SIC code 43220
Plumbing, heat and air-conditioning installation
SIC code 43220 · 133 new companies 2026-10-18 → 2026-10-25 · 1,921 in 90 days · 2,105 on record
SIC code 43220 covers plumbing, heat and air-conditioning installation. 1,921 UK companies chose it as a primary or secondary activity when incorporating in the last 90 days, led by London (348) and Birmingham (37). A company can list up to four SIC codes and change them on its confirmation statement.
Where (90 days)
- London 348
- Birmingham 37
- Manchester 32
- Glasgow 22
- Leicester 21
- Liverpool 19
- Ilford 17
- Sheffield 17
- Nottingham 16
- Bristol 15
- Leeds 14
- Harrow 12
This week
Want new companies in your postcode area every Monday as a CSV, with deadlines and websites?
Weekly export by postcode area →Related SIC codes (43xxx)
- 43999 — Other specialised construction activities n.e.c. 2,142
- 43390 — Other building completion and finishing 2,117
- 43210 — Electrical installation 1,855
- 43290 — Other construction installation 1,405
- 43910 — Roofing activities 1,078
- 43320 — Joinery installation 778
- 43341 — Painting 727
- 43330 — Floor and wall covering 427
How we count
The data comes from the UK public register of companies, reused under the Open Government Licence v3.0. Each night at about 02:10 UTC we collect the previous day's incorporations, add each company's filing deadlines from its record on the register, and publish the update by about 06:40 UTC.
“This week” means the seven days before today, by date of incorporation, in UTC. Cities are grouped by the place name in each company's registered office address, so a company is counted where its registered office is, which is not always where it trades.
Known gaps: companies dissolved or restored soon after incorporation, and records corrected late on the register, can take a day or more to show here. Last updated 25 October 2026.