About Us

30 years supplying the trade with

Who We Are

Window Warehouse has been manufacturing high quality trade windows and doors for over 30 years. We’ve built great friendships over this time and have been supplying many of our customers for 25 years or more. Read what our customers say about us.

You’ll always get a better specification of product from us and customers say our great service is one of the main reasons they work with us. As a trade fabricator we know you need us to give you a fast, reliable service and top quality products that are ready to fit. Our team will always go that extra mile for you to get the job done right.

We’re based in Portsmouth and we supply across the South Coast, Buckinghamshire and the M25 circular into London, Kent and Essex.

Windows & Doors in Aluminium and UPVC

Window Warehouse is the South Coast’s leading manufacture of Halo PVCu windows and doors so offer you lots of choice including Halo FlushSash windows and VEKA Imagine Bifold Doors.

Our dedicated factories for aluminium and PVCu means we can turn your orders around faster. We are an approved Schuco Manufacturing Partner, making aluminium windows, residential doors, bifold doors and lift & slide doors.

We also manufacture Palladio Composite Doors, the unique high security entrance door.

Our History

30 years of Window Warehouse, Portsmouth
Window Warehouse Portsmouth Factory
Window Warehouse sponsor Portsmouth
Window Warehouse become a Network VEKA partner
\Window Warehouse Factory in Portsmouth
Palladio composite doors from Window Warehouse, Portsmouth
Find a Window Warehouse Haven Installer
Haven Windows from Window Warehouse
Window Warehouse Factory in Portsmouth
Window Warehouse Factory in Portsmouth

About Us

Malcolm Cake started Window Warehouse in 1986 and over 30 years later we are still serving some of our original customers. We are one of Halo’s longest standing trade fabricators and manufacture in Portsmouth.


We test our products to PAS 24 standards, meeting the latest Document Q Building Regulation requirements for new buildings.

Independent Network

Since 1996 over 230,000 homeowners have chosen a Network VEKA approved installer to fit their windows, doors or conservatory. Now developed into the Independent Network, Window Warehouse is an Approved Trade Fabricator so talk to us about our outstanding installer support.


Our team is on hand to give you all the support you need. Our experts can give you technical and installation advice and offer we professional marketing and business support with our exclusive Haven retail brand promoted across Hampshire and the South Coast.

Quality First

Our windows and doors are manufactured to ISO 9001 : 2015 Quality Assurance and CENSolutions CMS Mark (CMS 6023W): Factory Production Control System compliance to EN 14351-1:2006. All our products also hold the CE Marking certification.
Halo from Window Warehouse

Halo Installer Scheme

Powerful marketing support and exclusive sales leads in your area are two advantages of the free-to-join Halo Approved Installer Scheme. As one of the longest standing Halo Trade Fabricator partners Window Warehouse.