Commercial Timber Windows & Doors in South West London
Large-scale timber window supply and installation for developers and housing associations.
Sash Timber Windows is the trusted partner for developers, main contractors, and housing associations across South-West London. We deliver large-scale window and door replacement programmes with unmatched reliability and quality.
We offer full survey, supply, and installation of timber fenestration systems in both softwood and hardwood. From sensitive heritage developments to modern social housing upgrades, our dedicated project management team ensures delivery on time and strictly within budget.
Safety and compliance are paramount. We hold major industry accreditations, operate with full health and safety compliance, and are fully FENSA-registered. Our robust 10-year guarantee ensures your commercial investments are protected for the long term.
We work across the locations listed on our South West London service areas page. If your neighbourhood is not shown, contact us to check whether we can survey your property.
Key Benefits
- Dedicated project management
- High volume capability
- CHAS accredited
- Full H&S compliance
- Softwood & Hardwood
Our Process
From initial survey to final installation, our streamlined approach ensures minimal disruption and exceptional results.
Survey & Consultation
Our project managers conduct full site surveys, review architectural plans, and assess the requirements of your large-scale fenestration package.
Design & Quotation
We provide competitive, itemised tenders with detailed logistical plans for phased manufacturing and delivery, including CAD designs if required.
Bespoke Manufacture
Leveraging our scalable production capabilities, we manufacture high volumes of consistent, premium-quality windows and doors.
Expert Installation
Our accredited installation teams work efficiently on-site under strict H&S protocols, coordinated directly with the main contractor's programme.
Commercial & Social Housing Price Calculator
Enter your sizes to see a live advisory price range — no contact details needed.
1. Choose a product
2. Options
3. Design Your Layout
Sash layouts define the glazing bar patterns and fixed/sliding configurations. "F" indicates a fixed panel.
4. Material
5. Size & quantity
Measure the full frame, including the surround. Sizes are approximate, we confirm everything at survey.
Live preview
Your project
No items yet. Choose a product, set the size, and add it to see your instant price.
Frequently Asked Questions
Common questions about our commercial & social housing services.
Related Services
Explore our other bespoke timber joinery and specialist installation services.
Sash Windows
Traditional timber sash windows, crafted for period properties with modern energy efficiency.
Casement Windows
Classic timber casement windows offering timeless elegance and exceptional security.
Front Doors
Make an entrance with our bespoke solid timber front doors, built for security and style.
Ready to transform your home?
Contact our South West London team today to arrange a free survey or get an instant estimate online.