Supply and installation
uPVC flush sash windows in Letchworth
uPVC windows with the opening sash sitting flush with the outer frame. Choose the frame colour, glazing bars and handles to suit the proportions of your home.
Talk to us: 01908 429200Serving Letchworth (SG6) from our Milton Keynes showroom.
Choosing uPVC flush sash windows
The flat frame line is the starting point.
Flush appearance
The sash closes level with the outside frame. Look at the whole elevation when choosing where openers and fixed panes sit.
View flush appearanceColour and hardware
White, coloured and timber-effect foils change the appearance of the frame. Compare them with handle finishes using actual samples.
View colour and hardwareGlazing bars
Bars divide the glass visually. Their position should follow the proportions of your windows and any adjoining windows you are keeping.
View glazing barsLetchworth
Letchworth homes, and what to check first.
The homes. Letchworth was the world's first garden city, begun in 1903. Its Arts and Crafts houses, cottages and later garden city estates give it a character unlike anywhere else nearby.
What that means. Windows and doors are a large part of that character, so replacements need to respect the original proportions, glazing bar patterns and colours of these houses.
Check first. The Letchworth Garden City Heritage Foundation runs a Scheme of Management across much of the town, and its consent is needed for changes to windows and doors. Apply before you order.
Your project in Letchworth
See the samples. Talk through the job.
We cover Letchworth 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 directionsYour questions
Buying uPVC flush sash windows in Letchworth.
Product choices, pricing and what happens before we fit.
What is the difference between flush and standard casements?
A flush sash closes level with the outer frame on the outside. A standard casement sash projects from it. Both open on hinges; the choice changes the frame lines you see from the street.
How do I get a price for uPVC flush sash 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 Letchworth?
Yes. We cover Letchworth and its SG6 postcodes from our Milton Keynes base, and everyone who surveys and fits works for us. Nearby, we also fit uPVC flush sash windows in Hitchin, Stevenage and Luton.
Do I need permission to replace windows in Letchworth?
In most of Letchworth, changing windows or doors needs consent from the Letchworth Garden City Heritage Foundation, as well as any planning permission from North Hertfordshire District Council. We can provide the product details the application asks for.
What our customers say.
Real reviews from real installations. Every one is public, so you can go and check them yourself.
Bernie Raffe
3 months ago
Great service from Fenster Glazing, very happy with our new bi-fold door, glass door and windows (with built-in blinds) There was an issue with the wrong spec of glass provided to them from their supplier, so they had to temporarily board up a door and a window, but this was put right within a few weeks. Recommended, thanks.
Read on Google Brigitta Lazar 14 Nov 2025A great and quick job. Very efficient.
Read on Google Norman Cummings 10 Jun 2025The best service ever, great workmen, very high standard and in the finish, excellent eye to detail.
Read on GoogleKeep comparing