Casement windows
Our most popular choice in Aylesbury: good ventilation, easy cleaning and a fit for most homes.
- Side-hung or top-hung openers
- Child-safe restrictors available
- Easy-clean hinges for upper floors
01296 630650 · Office Monday to Friday, 9am to 2pm
[email protected] · Aylesbury, since 2003
Double glazing · Aylesbury and Buckinghamshire
A-rated Liniar windows, measured, made and fitted by our own local team, with a fitted price you can see on screen before anyone visits.


Why double glazing
New A-rated double glazing changes how a house feels, not just how it looks. Six things Aylesbury homeowners notice first.
Double glazing styles
From Victorian terraces to new builds, in white, anthracite, woodgrain or a dual colour inside and out.
View all window styles
Our most popular choice in Aylesbury: good ventilation, easy cleaning and a fit for most homes.
The look of traditional timber for period homes and conservation areas, with modern performance.
Extra floor space, more daylight and a focal point for the front of the house.
Double doors that open out onto the patio or garden, with the security of modern glazing.

Why Smashing Windows
We have fitted windows across Aylesbury from Rabans Close since 2003, so we know the local housing, the conservation areas and the regulations.




Where we work
Double glazing installed throughout Aylesbury Vale, North and South Bucks and Milton Keynes, so a free survey is never far away.
Double glazing questions
Cost, timing, planning permission, guarantees and colour matching, answered by the people who fit the windows.
Double glazing costs vary depending on window size, style, and glass specification. We offer free, no-obligation quotes so you can see exactly what your project will cost. Our prices are competitive and include professional installation with a 10-year guarantee. Contact us to arrange a free home survey and receive an accurate quote for your property.
Most standard double glazing installations are completed within one day. Larger projects or whole house installations may take 2-3 days. We always provide a clear timeline before starting work, and our fitters work efficiently to minimise disruption to your daily routine.
In most cases, replacing windows with double glazing is considered permitted development and does not require planning permission. However, if your property is listed or located in a conservation area, you may need approval from the local authority. We can advise on any requirements during your free survey and recommend suitable window styles for heritage properties.
We provide a comprehensive 10-year insurance-backed guarantee on all double glazing installations. This covers both the windows and the installation work, giving you complete peace of mind. As CERTASS registered installers, your installation will also be registered with the local building control authority, providing official documentation of compliance.
Yes, our Liniar windows are available in a wide range of colours and finishes, including realistic woodgrain effects. We can match most existing window colours and offer dual colour options where the interior and exterior are different colours. During your survey, we will show you samples to help you choose the perfect finish for your home.
Instant online prices
Enter a few measurements and see your price on screen, with fitting and VAT included. No sales visit, no obligation, and a free survey before any work begins.
Rather talk it through? 01296 630650
Glass only · keep your frames
New sealed units made to measure and fitted into the frames you already have.
Misted, cracked or blown. Frames fine.
New windows · frames and glass
A-rated Liniar frames in ten styles, with your choice of openers and glazing.
Draughty, dated or rotten frames.