K Slack Glass & Glazing Ltd
K Slack Glass & Glazing Ltd is a company on the UK register of companies (Companies House no. 12418889), classified under the glazing trade (SIC 43342, Glazing), with a registered office in DN21, Gainsborough.
| Company number | 12418889 |
|---|---|
| Incorporated | 2020 |
| Company type | Ltd |
| Size (by accounts) | Micro |
| Last accounts filed | 2025 |
| SIC | 43342 - Glazing |
| Registered office | UNIT 2 GRANARY HOUSE, ROPERY ROAD, DN21 2NS |
Source: Companies House free company data. Search company number 12418889 on the Companies House register for the current position.
Before you contact a Gainsborough installer
A full double glazing job in Gainsborough typically lands between £2,500 and £7,400 (local cost factor 0.82×), depending on opening count and spec. Around 5 conservation areas including the Old Hall and central Gainsborough.
- Check the company is current and not in liquidation on the Companies House register.
- Confirm FENSA or CERTASS registration on the relevant scheme's own "find an installer" search - membership is per-company and can lapse.
- Get the quote in writing, itemised per window or door, and check the guarantee is insurance-backed.
- Ask for two recent installs you can look at - around Morton, Lea, Corringham or your own street.
Our guide to comparing double glazing quotes and FENSA vs CERTASS explainer go into detail.
Windows and doors in Gainsborough
Georgian and Victorian townhouses around the Old Hall, Victorian terraces near the town centre, plus interwar and postwar suburban semis.
Dominant era of housing stock: Georgian to Victorian.
Heritage note: Around 5 conservation areas including the Old Hall and central Gainsborough.