Instock Windows

Window company · Southampton · sources checked 2026-11-03

What to know before making contact

The services below were disclosed on the company’s website when checked on 2026-11-03. We have not independently confirmed current trading, appointment availability, insurance or workmanship. Check these directly before making a booking or payment.

About Instock Windows

Instock Windows installs made-to-measure replacement windows in Southampton and surrounding areas, with work ranging from one window to a whole house. Its installation service includes uPVC and aluminium windows and doors, with bifolds and roof lanterns among its wider products. Repair work covers misted glass units, locks, handles and hinges, allowing individual parts to be renewed where a full replacement is unnecessary. The family business also installs conservatories and roofline products and can arrange viewings of previous installations.

Services described on the company website

  • Window installation

    Yes

  • Replacement windows

    Yes

  • uPVC windows

    Yes

  • Aluminium windows

    Yes

  • Double glazing

    Yes

  • Window repairs

    Yes

No information yet ontimber windows, sash windows, triple glazing, secondary glazing, conservation or listed-building work, commercial window work. These services were not established by the source evidence.

A listed service is evidence of a published offer, not confirmation of current availability.

Published contact details

These are source disclosures. Calls, email delivery and availability have not been tested.

Sources and corrections

Evidence checked on 2026-11-03. A source can remain online after a business changes or closes.

Request a correction review.