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House Extensions Windlesham: completed project by Grand Innovations
Extensions · Windlesham

Superior House Extensions in Windlesham.

In Windlesham, where character homes offer a robust framework for growth, a well-designed extension is the ultimate way to stay in the town you love while gaining modern luxury space. Grand Innovations delivers extensions in Windlesham that focus on architectural synergy and family-first functionality.

Request Your Free Cost Proposal

Tell us about your Windlesham project. We respond within 24 hours with a clear, itemised proposal.

Step 1 of 2 · About your project

A rough idea is fine. It helps us plan the right scope with you.

So we can check the project is in our service area.

Takes 30 seconds · No obligation · Free proposal within 24 hours

Prefer to talk? Call 01932 950158

Specialist focus in Windlesham.

We specialize in creating light-filled rear and side additions featuring architectural glazing and high-end kitchen-diners. We handle every aspect from local planning to the final high-spec interior fit-out, ensuring your new space adds both character and value to your home.

As a premium design-and-build company we take on a limited number of projects at a time, so that every one gets the attention it deserves. If you are planning work on your Windlesham home, we would love to hear about it.

The Grand Standard

  • Transparent weekly billing, no large deposits
  • One team from design to completion
  • Planning & building control managed for you
Local Knowledge · Surrey

Planning authority

Surrey Heath Borough Council

We handle applications, party wall agreements and building regulations on your behalf.

Local housing stock

Grand estates · luxury villas · period cottages

Also serving nearby

Expertise & Standards

What we deliver in Windlesham.

  • 01

    Grand Estate Expansion

    Maximizing the footprint of Windlesham's traditional properties with expansive additions for modern socializing.

  • 02

    Architectural Symmetry Matching

    Using specialized materials and precision matching to ensure your extension feels like an original Windlesham feature.

  • 03

    Structural Excellence Hub

    Safely opening up compartmentalized floorplans to create the large, multi-functional spaces families crave in Windlesham.

  • 04

    Turnkey Elite Delivery

    Managing all trades and building control requirements under our signature no-deposit, weekly billing framework.

Greenwich Rear Extension & Kitchen
Case Study · Greenwich, London

Greenwich Rear Extension & Kitchen

The Challenge

Opening the rear of a 1930s semi into one room meant removing a load-bearing wall between the existing kitchen and the new extension, on a site where a narrow side passage was the only route for materials in and spoil out. The new ground-floor shower room also had to be formed within the existing rear lobby, well away from the original layout's plumbing.

Our Solution

The structural opening was formed with a steel beam cased into a shallow flush bulkhead that follows the line of the removed wall, keeping the ceiling clean and the sightline from kitchen to garden completely open. Deliveries were sequenced in small daily loads through the side passage to keep the neighbouring boundary clear, and services for the new shower room were routed within the extension's floor build-up so no boxing-in was needed in the finished rooms.

Extension, Kitchen & Bathroom
View this project
House Extensions Windlesham FAQs

Your questions, answered.

Your Cost Proposal

Surveyed first, then itemised.

Every Windlesham project begins with a free consultation and a fully itemised Cost Proposal, and with weekly billing you only ever pay for completed, signed-off work.

Transform your Windlesham home.

Tell us about your Windlesham project and we'll arrange a free, no-obligation consultation, followed by a clear, itemised Cost Proposal, usually within 24 hours.

Step 1 of 2 · About your project

A rough idea is fine. It helps us plan the right scope with you.

So we can check the project is in our service area.

Takes 30 seconds · No obligation · Free proposal within 24 hours

Prefer to talk? Call 01932 950158
No large deposits required
Free proposal within 24 hours
Fully insured & accredited
Rather talk it through? 01932 950158
The attention to detail and absolute financial transparency provided by Grand Innovations completely redefined our expectations of what a home renovation could be. High standard of work, the extension is beautiful and has added so much value onto our home. Really appreciated the weekly billing, rather than a big amount upfront.
Adrienne C. · Home extension
CallFree Cost Proposal