Alter Fitout Limited
London EC2R 5BJ
- Fit-out
- Commercial building construction
Since 2019
Verified against Companies House
Specialism
SIC 41202 is the construction of commercial buildings — the classification filed by commercial builders and main contractors, as distinct from housebuilders. 521 active UK companies on this register filed it.
Classification
Matched on Filed SIC 41202 — construction of commercial buildings
Longest trading Since 1972
These are the firms that take principal contractor duties: shell and core, Category A landlord works, structural alterations, extensions and whole-building refurbishment. On a larger scheme this is usually the single contract you sign, with joinery, mechanical and electrical services and the finishing trades subcontracted beneath it. Our Cat A and Cat B explainer covers where that handover sits.
Coverage runs to 30 UK regions with at least 3 commercial builders each. Company number, incorporation year and registered address are shown on every listing, and each links to the live Companies House record.
Coverage
Regions are listed only where at least three companies with this classification are registered, so every link below leads to a usable shortlist rather than a near-empty page.
The register
London EC2R 5BJ
Since 2019
Chigwell London IG7 6LN
Since 2020
Swanley London BR8 7EH
Since 2022
Croydon London CR0 4QH
Since 2017
Ilford London IG1 2XB
Since 2023
London NW4 4SH
Since 2019
Beckenham London BR3 3NU
Since 2025
London E11 1UL
Since 2025
Ilford Essex IG6 3FD
Since 2013
Hockley Essex SS5 6LZ
Since 2014
Manningtree Essex CO11 1SG
Since 2012
Brentwood Essex CM14 4YA
Since 2019
Harwich Essex CO12 3QN
Since 2019
Basildon Essex SS14 3TY
Since 2018
Southend-On-Sea Essex SS2 4QY
Since 2023
Maldon Essex CM9 6EP
Since 2024
Gravesend Kent DA12 5HY
Since 2026
Bexleyheath Kent DA6 8ND
Since 2019
Gravesend Kent DA11 9NB
Since 2019
Sidcup Kent DA15 9HG
Since 2024
Edenbridge Kent TN8 7NP
Since 2025
Bexleyheath Kent DA6 8HT
Since 2023
Belvedere Kent DA17 6DT
Since 2024
Faversham Kent ME13 7QZ
Since 2024
Tamworth West Midlands B77 5TA
Since 2018
Walsall West Midlands WS9 8PT
Since 2019
Wolverhampton West Midlands WV1 2JT
Since 2021
Willenhall West Midlands WV12 4NN
Since 2022
Sutton Coldfield West Midlands B74 4PR
Since 2020
Walsall West Midlands WS2 7BG
Since 2024
Dudley West Midlands DY3 1JA
Since 2022
Birmingham West Midlands B20 3LN
Since 2025
Gerrards Cross Berkshire SL9 0BG
Since 2025
Slough Berkshire SL3 7AB
Since 2016
Reading Berkshire RG1 5QL
Since 2025
Reading Berkshire RG31 5EA
Since 2015
Slough Berkshire SL1 3NH
Since 2025
Reading Berkshire RG4 6LX
Since 2015
Berkshire RG42 5JN
Since 2010
Reading Berkshire RG7 1WS
Since 2018
Sheffield South Yorkshire S20 5DG
Since 2026
Doncaster South Yorkshire DN5 0BH
Since 2026
Sheffield South Yorkshire S20 2PS
Since 2015
Sheffield South Yorkshire S20 1XJ
Since 2025
Rotherham South Yorkshire S60 2LE
Since 2021
Rotherham South Yorkshire S63 7FA
Since 2008
Doncaster South Yorkshire DN12 1LZ
Since 2016
Worksop South Yorkshire S81 8FT
Since 2020
Related trades
Office, retail and hospitality fit-out specialists
View index →
Office refurbishment, partitions, ceilings and second fix
View index →
Bespoke commercial joinery and site installation
View index →
Pricing a scheme? Read what an office fit-out costs per square foot before you brief anyone.
Featured placement
A featured listing puts your firm above every free entry in its region and specialism, with your website, contact details and project history in front of the people writing the brief.
From £83/month, billed annually
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