Supply and installation
Double glazing in Flitwick
Replacement windows, new doors or just the glass. We help you work out what your home needs, price the choices and fit the finished job with our own team.
Talk to us: 01908 429200Serving Flitwick (MK45) from our Milton Keynes showroom.

What needs replacing?
Start with what you want to change.
New windows
Choose how each room opens and ventilates first. Casement, flush and sliding sash windows offer different frame lines and opening styles; uPVC and aluminium give you different finishes.
View new windowsNew doors
A front entrance needs a different layout from a wide garden opening. Compare composite entrance doors, paired French doors, bifolds and sliding doors around the space you use.
View new doorsReplacement glass
If your frames are sound and the glass has misted between the panes, we can assess the sealed units on their own. Send a photograph of the whole window and a close-up of the glass.
View replacement glassFlitwick
Flitwick homes, and what to check first.
The homes. Flitwick grew from a village into a commuter town around its station on the Midland Main Line, and most of its homes date from the 1960s onwards, from post-war houses to recent estates.
What that means. Most homes here are straight replacements. The big choices are usually the glass, the colour and whether to open up the back with new garden doors.
Check first. On the newer estates, check your deeds for covenants on the front elevation before changing its style or colour.
Windows and doors
Compare the styles before choosing a finish.
Your project in Flitwick
See the samples. Talk through the job.
We cover Flitwick 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 near Flitwick.
The location, products and photographs from each job.
uPVC window with integral blinds, Leagrave
One uPVC casement window in a Leagrave bathroom, with a white Notan blind sealed inside the glass and worked by two magnets on the frame.
Read case study
uPVC casement windows, Leighton Buzzard
A crisp white Liniar casement replacement in Leighton Buzzard, for warmer, brighter rooms and a tidier frontage.
Read case studyYour questions
Buying double glazing in Flitwick.
Product choices, pricing and what happens before we fit.
Can you replace the glass and keep my existing frames?
We can replace sealed glass units in suitable existing frames. Send us photographs and approximate sizes so we can check the frame condition and identify the glass. For handles, hinges or locks, our repairs team can advise separately.
How do I get a price for double glazing?
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 Flitwick?
Yes. We cover Flitwick and its MK45 postcodes from our Milton Keynes base, and everyone who surveys and fits works for us. Nearby, we also fit double glazing in Ampthill, Toddington, Bedford and Woburn Sands.
Do I need permission to replace windows and doors in Flitwick?
Flitwick is covered by Central Bedfordshire Council. Replacing windows and doors like for like is usually permitted development; on newer estates, check your deeds for covenants first.
What our customers say.
Real reviews from real installations. Every one is public, so you can go and check them yourself.
We have used Fensters for years on a variety of glazing work, and 2 door installations. They are competitively priced and responsive. They take great care over measuring and specifying the work, giving you a clear quote so you understand what you are getting (thanks Perry!). The fitters are all extremely competent and personable. We had to replace our front door for accessibility reasons, they gave us confidence that our requirements would be met, reproduced the intricate leaded and stained-glass pattern of our old door, and did a quality fitting job (thanks to Johnnie and Shane!). In summary they are our go-to suppliers for all replacement and repair work.
Read on Google John Tillotson 4 Nov 2025Clean, tidy - really good.
Read on Google Pete Dafters 15 May 2025I cannot recommend this company enough.
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