UK SIC 2007 code in Section N: Administrative and support service activities
81223 Furnace and chimney cleaning services
SIC 81223 is the UK code for furnace and chimney cleaning services, part of the class "other building and industrial cleaning activities". Companies House accepts it when you register a company or file a confirmation statement.
- Code
- 81223 (UK SIC 2007, Companies House list)
- Section
- Section N: Administrative and support service activities
- Division
- 81 Services to buildings and landscape activities
- SIC 2026
- 81.22 Other building and industrial cleaning activities (1:1)
Activities ONS lists under 81223
The ONS index assigns these 6 activities to this code. If one describes your company, this is the code to use.
- Boiler cleaning and scaling
- Chimney cleaning
- Fire-places cleaning
- Furnace cleaning
- Incinerator cleaning
- Stove cleaning
Source: ONS UK SIC 2007 alphabetical index.
What changes in SIC 2026
ONS published UK SIC 2026 in 2026. Its correspondence table maps this code's class (81.22) to:
| SIC 2026 code | Heading | Link type |
|---|---|---|
| 81.22 | Other building and industrial cleaning activities | 1:1 |
"1:1" means the class carries over unchanged in scope; other link types mean it was split or merged. Companies House still uses SIC 2007, so keep filing with 81223 until it announces a switch.
Similar codes to compare
Data last changed November 14, 2026. Source: Companies House condensed SIC list. How this page is built.