DISCOVER GRABEX
WINDOWS & DOORS | MADE IN ENGLANDGRABEX DIFFERENCE
We are a family run, Orpington-based manufacturer & installer of windows, doors, glass roofs & bespoke glazing solutions for London & surrounding counties.
Established in 2002, we have spent many years researching the best profiles, components and technologies for residential use, currently manufacturing in a range of timber materials, aluminium and uPVC.
Our wide range of fenestration products for new builds, self-builds & renovations extends from traditional and heritage timber sash windows, bespoke timber entrance doors to modern roof lights, bi-folds and sliding patio doors with our signature slim frames of large aluminium HiVision 25 Sliding Doors and steel-looking Cube windows.

Award Winning Manufacturer
2019 Winner in Best Timber Windows & Doors Manufacturer - London and The South East category, by BUILD Construction & Engineering Awards.
Made to requirements
Technology
At Grabex we are focused on delivering consistency in quality, energy efficiency and sustainability of our products – all manufactured in our 45,000 sq. ft. factory at Orpington.
Our innovative approach to manufacturing set us on the road to re-cycling virtually 100% of our production waste. Our wide range of fenestration products for your new build, self-build or renovation extends from traditional and heritage timber sash windows, bespoke timber entrance doors to modern roof lights, bi-folds and sliding patio doors with our signature slim frames of large aluminium HiVision 25 Sliding Doors and steel-looking Cube windows.
Our process
Warranties
Our experienced and qualified engineers will install your doors and windows to a first class standard, right first time and our installation service is fully guaranteed.
All of our products have extensive warranties that cover your parts against defects for 10 years (some exclusions apply).
We also have a dedicated aftercare team working hard to ensure you’re happy even after we’ve left site.












At Grabex, we are conscious of our planet and always try to choose the most environmentally friendly and sustainable options. We are a responsible manufacturer, sourcing materials from suppliers who practice sustainable development and recycling virtually all of our waste.
Visit our Showroom
Visit us in our Orpington Showroom. No need to call in - just pop in during our open hours.
We're also serving trade and commercial enquiries.