uPVC Windows Lowestoft

Replacement Windows LowestoftFIS has been installing UPVC Windows for customers in the Lowestoft area for many years (we offer hardwood and aluminium options too).  We understand that choosing replacement windows needs careful consideration and with over 10 years’ experience in the home improvement sector we can certainly help you make an informed decision.

As Suffolk’s leading professional window installation experts, we hold the largest selection of uPVC windows in the Lowestoft area, so no matter what look you want for your home, we can provide it.

Our focus on customer satisfaction and loyalty has driven our success in the Lowestoft area and we pride ourselves on offering the best quality materials backed up by first class customer service.  So if you are thinking of installing replacement windows, doors or a conservatory to your home, please don’t hesitate to get in touch.


Window Types

Not sure what style of windows you want?  Browse our selection below or get in touch and we’ll talk you through the options.

Bay windows

Wooden Door

Offered in a range of finishes, bay windows look wonderful and will flood your home with light.




Casement Windows


These windows suit any home and can be produced in any form to suit your home. Colours can vary depending on the materials you select.






Sash windows

Replacement sash windows have a wonderfully traditional feel with the added benefit of improved security and insulation.





Dorma windows are a great choice where space is limited and you are dealing with a sloped roof.





Tilt Turntilt_and_turn

One of our personal favourites for their practicality and ease of use, tilt turn windows tilt inward and rotate on a horizontal swing axis making them incredibly easy to clean.





Arches and Other ShapesArched-shaped-windows

We offer a variety of window shapes, sizes and materials suit the different needs and tastes of our many customers.  Whatever look you’re seeking we can create bespoke windows to suit.





Window Materials

Our windows are available in the following materials and finishes:


uPVC double-glazed windows provide your home with access to bright, natural lighting and an incredibly modern design. Our installation services will give your home the fresh new look you’re seeking with the added benefit of a well-insulated house that will save money on your energy bills.

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Aluminium double-glazed windows are one of the framing options we provide alongside our uPVC windows in the Lowestoft area.  Aluminium frames are thinner than traditional wooden frames and look great with most styles of property.


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If you’re after a more traditional look then hardwood frames could be the best option. Made from sturdy oak or ash, our materials are always responsibly sourced and of the highest quality.


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