House Extensions Across Lancashire

At Lancashire Window, house extensions are one of our core specialisms. Our experienced team handles every aspect of your project — from the initial design and planning application through to structural construction, windows and doors, roofing, insulation, plastering, electrics, and decoration. You deal with one company and one project manager throughout, making the process straightforward and stress-free.

We’ve built extensions across Burnley, Blackburn, Nelson, Accrington, Clitheroe, and throughout Lancashire. Our portfolio includes simple single-storey kitchen extensions, larger open-plan living spaces, double-storey additions, and complex wrap-around extensions. Whatever your vision, our team has the experience to deliver it.