Double glazing installers in Gainsborough
9 companies have a registered office in Gainsborough under the glazing trade (SIC code 43342).
Extract from the public Companies House register (glazing trade, SIC 43342) - not a recommendation or a vetted panel. Select a company for its full register entry and local context.
| Company | Area | Registered | Accounts filed | Details |
|---|---|---|---|---|
| K Slack Glass & Glazing LtdLtd · Micro · no. 12418889 | DN21 | 2020 | 2025 | View details → |
| Zaccaria Glass 2020 LtdLtd · Micro · no. 12712958 | DN21 | 2020 | 2025 | View details → |
| Coolglass Glazing Enhancements LimitedLtd · Micro · no. 13964853 | DN21 | 2022 | 2025 | View details → |
| Agbupvc Installations LtdLtd · no. 17090643 | DN21 | 2026 | — | View details → |
| C Toyne & Son LimitedLtd · Small · no. 04860327 | DN21 | 2003 | 2025 | View details → |
Source: Companies House free company data - SIC 43342, active companies, with dormant and long-overdue filers removed. Company status and details can change; check the register for the current position.
How to choose between them
A whole-home job in Gainsborough typically runs £2,500 to £7,400 (local cost factor 0.82×), so the spread between three quotes on the same brief is worth chasing. Georgian and Victorian townhouses around the Old Hall, Victorian terraces near the town centre, plus interwar and postwar suburban semis.
Heritage note: Around 5 conservation areas including the Old Hall and central Gainsborough.
Whichever company you approach: get three written, itemised quotes, confirm FENSA or CERTASS registration on the scheme's own register, check the guarantee is insurance-backed, and ask for two recent local installs you can look at. Our guide to comparing double glazing quotes walks through it.