Gosai Construction

Define Your Home’s Character with Premium Windows & Doors

Windows and doors are more than openings — they shape light, security, and curb appeal. At Gosai Construction, we supply and install high-quality windows and doors that combine aesthetic with performance across London and Greater London.

Designed Around You

Choose from sash windows, double or triple glazing, skylights, dormer windows, or custom doors. We guide you through material, style, thermal performance, security, and finish options to suit both heritage and modern homes.

Why Choose Windows & Doors with Gosai?
Built to Last

We use premium materials, seasoned joinery, quality hardware, and expert fitting to prevent issues such as drafts, leaks, or warping. With every install, we focus on precision and durability to ensure long-term satisfaction.

Frequently asked questions

How long does it take to replace windows or doors?

Usually a few days to a week depending on the number, style, and whether frames need adjusting or structural work.

Generally not for like-for-like replacements. In conservation or listed areas, or when changing window types, approvals may be required — we help manage that.

Triple glazing gives better insulation and sound reduction but can be more expensive. We advise on the best match for your location and budget.

Proper installation, quality seals, hardware, and frames matter. We source high-grade components and inspect thoroughly.

Yes — we can replicate sash windows or traditional doors with modern performance that respect heritage design.

Explore our portfolio of Windows & Doors

Each project was crafted with precision, creativity, and a commitment to exceptional quality. From the design to the hand over phase.

Are you interested in starting your Windows & Doors Project today?
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