Double Glazing Windows & Replacement Doors in Oxford & Oxfordshire

Are you looking for replacement Double Glazing for your home? We’ve been installing double glazing windows for over 20 years in the Oxfordshire area covering everywhere from Oxford, Witney and Headington to Bicester, Banbury and Wantage. We have achieved an enviable reputation for supplying & fitting high-quality windows, doors and conservatories at very competitive prices.

We have a large selection of double glazing window styles and materials to choose from, including elegant sliding sash windows for period properties and modern aluminium windows that let the maximum light into your home. If you would like some advice on colours, materials or anything else, we’re always happy to help you choose something to suit your home.

We are an independent, Oxfordshire company and we deal with all our customers directly, with no pushy sales teams or call centres, just our friendly and helpful team and professional, craftsmen installers. Our is office is based in Bicester, Oxfordshire, conveniently located to serve homes across the county. If you would like to arrange a free consultation and get a quote for new windows or doors, just get in touch and we will arrange for one of our friendly installers to visit your home.

All of our products come with a minimum of 10 years guarantee, including all hardware and parts so you can rest assured your new windows will provide many years of enjoyment.

Make your home your paradise with Paradise Windows.

Double Glazing Windows

We provide a range of replacement windows to suit your home. Whether you’re simply looking for uPVC replacement windows, Timber windows or Sash windows. Get in touch with us today to see how we can help you.

uPVC Casement windows with georgian bars installed by Paradise Windows in Oxford



Our most popular range of Double glazed Windows. With a range of finishes to suit your home, carefully installed by our dedicated fitting teams.

Sash Windows close up with curtains, fitted by Paradise Windows in Oxford



A more traditional choice of Windows. These new uPVC Sash Windows are easy to use, well insulated and guaranteed for 10 years.

Timber Casement Windows with Georgian Bars in Oxfordshire, installed by Paradise Windows

Flush Sash


Enjoy the best of both words – traditional styling and modern performance – these are ideal if you live in a conservation area.

Aluminium Windows Oxford



These have excellent resistance to the worst of the British weather, won’t rot, dent or warp. Aluminium windows look highly attractive too.


From entrance doors to Patio and Bi-folding doors, we have a selection of high-quality doors, installed by our experienced fitting teams and supplied with a 10-year guarantee for your peace of mind.

White uPVC Door in Oxfordshire installed by Paradise Windows

uPVC Doors

View our selection of uPVC doors, designed and built to suit your style and fitted by our dedicated teams. Each door comes with a 10 year guarentee.

Bi Fold Doors

Instead of a traditional Patio door or French door, why not install a modern Bi-Folding door which provides a greater opening.

Black Composite door with hanging plant pot, installed in Oxford by Paradise Windows

Composite Doors

Our Composite doors are stronger, tougher, more durable and come in a range of colours and styles to suit your home. Supplied with a 10 year guarentee.

Why Choose Paradise Windows?

FENSA Registered

We’re an official FENSA registered supplier of Double Glazing Windows & Doors, supplying only quality products installed and fitted by experience, professional fitters. We also supply a minimum of 10 years guarantee on all products, including parts!

Local To Oxford

We’re a local company based in Bicester, Oxfordshire, just outside of Oxford and conveniently located to serve all surrounding areas including Whitney & Headington.

Friendly & Helpful Team

Our friendly and helpful team are always happy to help and don’t employ pushy sales tactics to sell our products. We’re proud to get lots of our business from word of mouth from neighbours, friends and family of our customers.

Paradise Windows Testimonials

I am very pleased with my new windows and doors and John and Martin who installed them did an excellent job and were extremely helpful. Your company was recommended to me by two different people and I shall certainly recommend yourselves to anyone else.

A. Lewis, Bicester, Oxon

Everyone who has seen the doors and windows has been very complimentary and I’d gladly recommend you to anyone in need of same.

J. Gower, Lyneham, Wiltshire

We are really pleased with the doors and windows. They really brighten up the place. Everyone has said how lovely it looks and would definately recommend you to anyone to wanted replacement doors and windows.

M. Middleton, Kennington, Oxford.