Double glazing installers in Islington
No glazing company has a registered office in Islington itself. The nearest on the register — in London — are listed below.
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 |
|---|---|---|---|---|
| Essex Glass LimitedLtd · Small · no. 00790018 · London | W1J | 1964 | 2025 | View details → |
| Hamilton Glass Products LimitedLtd · Small · no. 00895448 · London | SW1V | 1967 | 2025 | View details → |
| Windglass (Epsom) LimitedLtd · Small · no. 00938561 · London | SW20 | 1968 | 2025 | View details → |
| South Norwood Glazing Company Limited(The)Ltd · Small · no. 01196602 · London | SE25 | 1975 | 2025 | View details → |
| Express Glazing Contractors LimitedLtd · no. 01580127 · London | E17 | 1981 | 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 Islington typically runs £3,800 to £11,300 (local cost factor 1.25×), so the spread between three quotes on the same brief is worth chasing. Georgian terraces around Canonbury, Barnsbury and Highbury, Victorian streets across Holloway and Finsbury Park, plus 1970s public housing like Marquess Estate and modern King's Cross Central.
Heritage note: Around 40 conservation areas including Canonbury, Highbury New Park and Barnsbury - Georgian frontages in Barnsbury are tightly regulated.
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.