Company directory · Windsor
Trade and construction companies in Windsor
426 active trade and construction companies registered in Windsor, Berkshire, by trade.
Trade companies in Windsor in numbers
From the Companies House register and filed balance sheets, as of 1 Oct 2026. The longest-established is Clewer Boatyard Limited, incorporated in 1943.
Still trading, by year incorporated
Companies still active today, by the year they were incorporated; 2026 is the year so far.
Trades in Windsor
- Property developers67
- Builders66
- Motor traders53
- Cleaning companies31
- Plumbers and heating engineers24
- Specialist contractors24
- Mechanics and garages23
- Electricians22
- Finishing trades21
- Landscapers and gardeners13
- Machinery repair and installation13
- Painters and decorators10
- Repair services10
- Roofers10
- Glaziers9
- Civil engineering7
- Installers6
- Floor and wall tilers5
Every company on these pages is an active private limited company that files small or micro-entity accounts. Each one has to deliver accounts to Companies House within 9 months of its year end, pay corporation tax 9 months and 1 day after it, and file a CT600 with HMRC within 12 months.
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