About Us

Established in 1995 the Alternative Window Company is a trusted major supplier of Andersen sash windows and sliding doors. Based in America, Andersen have a world wide reputation for their high quality innovative products.

We have over fifteen years experience in advising clients how to install Andersen sash windows and doors, as NHBC house builders our company can also offer sound pratical advice. This is a complementary service we provide when an order is placed with us.

We work with builders, architects, developers, and homeowners across the UK and we have many hundreds of happy customers.

For more information please fill in our enquiry form or call 01636 703093