Supply and installation
French casement windows in Northampton
Paired opening sashes with a central mullion that moves with the window. Open both sides for a clear aperture, with uPVC and aluminium options to compare.
Talk to us: 01908 429200Serving Northampton (NN1 to NN5) from our Milton Keynes showroom.
Choosing French casement windows
Two opening sashes, one clear opening.
The opening
The centre section travels with one sash when both sides open. We check the usable aperture and the space outside for the sashes to swing.
View the openingFrame material
French casement describes the arrangement. Compare the compatible uPVC and aluminium systems on the configuration page before choosing a finish.
View frame materialEveryday access
Handle positions and the order in which the sashes open affect daily use. Try the mechanism and explain how you want to ventilate the room.
View everyday accessNorthampton
Northampton homes, and what to check first.
The homes. Northampton has long streets of Victorian terraces from its boot and shoe trade, older villas and a Georgian centre, and large estates built from the 1970s when the town expanded as a new town.
What that means. The Victorian terraces often have bays and narrow frontages that suit traditional styles. The 1970s and 1980s estates are usually straight replacements of original or first-generation frames.
Check first. Northampton has several conservation areas, including the Boot and Shoe Quarter. Check the status of an older house before changing the style of its windows.
Your project in Northampton
See the samples. Talk through the job.
We cover Northampton from our base in Milton Keynes. A free consultation brings advice and colour swatches to your home. For full-size product samples, visit the showroom.
Book a free consultation98 Alston Drive, Bradwell Abbey, Milton Keynes, Buckinghamshire MK13 9HF
Opening times and directionsFrom our installation diary
Our work in and around Northampton.
The location, products and photographs from each job.
Roof lantern and heritage doors, Northampton
A Sheerline roof lantern paired with black steel-look heritage aluminium doors on a brick extension.
Read case study
Flush casements, tilt and turn windows and doors, Hanslope
Anthracite grey Liniar windows and two doors across a stone barn conversion in Hanslope, with flush casements on the elevations and a tilt and turn that opens two ways.
Read case studyYour questions
Buying French casement windows in Northampton.
Product choices, pricing and what happens before we fit.
Is French casement a material or a window layout?
It is a layout: two side-hung sashes open without a fixed centre mullion remaining in the aperture. We offer this arrangement in compatible uPVC and aluminium systems; the main configuration page shows the choices.
How do I get a price for French casement windows?
Build your price online using approximate sizes, or book a free consultation and we price the job with you. Both use the same software and price list. Once you decide to go ahead, a technical survey confirms the measurements and fitting details before anything is made.
Do you supply and fit in Northampton?
Yes. We cover Northampton and its NN1 to NN5 postcodes from our Milton Keynes base, and everyone who surveys and fits works for us. Nearby, we also fit French casement windows in Wolverton, Newport Pagnell and Stony Stratford.
Do I need permission to replace windows in Northampton?
Northampton is covered by West Northamptonshire Council. Like-for-like replacements are usually permitted development, but the town has several conservation areas and many listed buildings, where changes can need permission.
What our customers say.
Real reviews from real installations. Every one is public, so you can go and check them yourself.
Silvia Peraro
a month ago
I had an excellent experience with Fenster Glazing from start to finish. Nick Perry and David managed the initial quote to installation process seamlessly, keeping communication clear, honest, and completely stress-free. When it came to the actual fitting, Zac and Shane did a fantastic job with the installation, working efficiently and leaving everything spotless. The professionalism from the entire team was top-notch, and the final result looks brilliant. I highly recommend them.
Read on Google Nicole 20 May 2025Shane and James fitted two sash windows for us at the front of our house and we are so pleased.
Read on Google Josh McMillan 1 Jun 2025Tom and Radu were great with our install. Very happy with the work done.
Read on GoogleKeep comparing