We’ve been installing double glazing windows and replacement doors in Oxford and surrounding areas in Oxfordshire including Witney, Abingdon and Bicester since 1997 and pride ourselves on quality products with a high level of service to match.
To ensure you get the best service, we’re accredited Fensa members and all of our installations comply with current thermal performance standards and come with a 10-year guarantee.
All installations are underwritten for 10 years by GGFi (Glass and Glazing Federation Insurance). With all of these benefits, you can be sure that our products and service standards exceed industry standards.
Our track record of excellent customer service comes from an independent Installation Quality Survey.
Our Range of Double Glazing Windows & Doors
We have a huge range of products for your home, whether you’re looking for ultra-modern Aluminium Windows or insulating uPVC Double glazing, we have something to suit your home and your needs.
Double Glazing Windows
We offer a full range of windows, from casement windows to sliding sash windows and uPVC options.
Our uPVC windows are available in a stylish range of styles and colours, including trendy pastel colours such as Cherwell Green.
Sash windows, or those which slide open vertically, are elegant with subtle proportions and have been a popular choice since the 18th and 19th centuries.
Our casement windows are extremely versatile and are a continuously popular choice for many. Choose from an extensive colour palette and range of styles to suit your home.
Choose French windows to add a touch of elegance and character to your home and team them up with a pair of brand new French doors for a full exterior home makeover.
We offer a full range of replacement doors for both the front and back of your house, our range includes Solidor composite doors, uPVC doors bi-fold doors and French Doors.
Why Choose Isis Windows?
Isis – What’s in a name?
Isis is a name with a long, proud history. Its first recorded use is as Isa in 1350, while the first evidence of its modern form dates from 1577.
It was also the name of an Ancient Egyptian goddess, later worshipped by Greeks and Romans, but, in Oxford, Isis has long referred to the stretch of Thames north of Iffley Lock.
It comes from the old name for the River Thames, Tamesis, which in the Middle Ages was wrongly taken to be a combination of Thame and Isis.
Isis has long been associated with Oxford rowing. Its the name of the famous university’s reserve boat for its rowing crew, and of a student magazine first set up in 1892.
The university’s research and technology company is also called Isis, as are several other businesses and organisations keen to highlight their connections with Oxford.
We love Oxford and Oxfordshire, too, and are delighted to have our pride in our city reflected in our name.
A FENSA Approved Windows & Doors Installer
FENSA is a government-authorised scheme that monitors building regulation compliance for replacement windows and doors. Every FENSA Approved Installer, from large national brands to small local companies, is assessed regularly by us to ensure its standards are continually maintained.
FENSA have recently just released their first TV advert!