Newbury’s Leading Window & Door Installer



We have been installing and repairing across Berkshire for over 30 years. We bring a heightened level of expertise to every project.



As a business, Castle Windows are certified by FENSA and Master Builder. You can place your complete trust in our skilled installers.



Castle Windows only work with industry leading supply chains, promising higher quality products that are available on shorter lead times.


Checkatrade Approved

Castle Windows take immense pride in being certified by Checkatrade. Not only are we backed by them as a business, but we boast a near perfect score on the site. We have hundreds of positive reviews from homeowners just like yourself, which you’re welcome to read through today. We hope it gives you complete peace of mind that we’re the best business for you, wherever you live in Berkshire, Hampshire, Wiltshire and the surrounding counties.

French Doors Berkshire
Fensa logo
Yale logo
Checkatrade Logo
Smart logo
Aluminium Casement Windows Berkshire

What We Install


High quality double glazed windows are one of our popular renovation options. Available in a range of styles to suit the varying budgets and tastes of our customers, our windows are both thermally efficient and visually appealing.


Whether you’re looking for a front or back door, Castle Windows have you covered. We install secure composite doors and stable doors, as well as patio, French and bi-folds. Everything is made to measure, promising a tailored build for your home.


We install stunning conservatories and orangeries available in a wide range of different styles. With a broad range of customisation options, we have an extension for every homeowner. They can be used all year round by the whole family.

Start Your Quote

Contact Castle Windows today if you'd like to get an estimated price for a set of windows, a new door or a stunning conservatory. Leave your details on our online contact form today.


Very nice company, trustworthy and honest. Good products. Recommended.

Peter Brunsden -

I’ve been a customer of Castle Windows for around 20 years and have always had excellent service , I needed to claim on their warranty recently five years after the door was fitted and it was replaced quickly and efficiently with no quibbles at all.

Rich Fielding -

Great service from start to finish, aftercare brilliant too.

Helen Chalmers -

Brilliant job. Quality of service as well as the products were good. It did take a bit longer than i expected, but the end result more than makes up for it.

Umer Fraz -

Latest News

French Windows Berkshire
16th January 2020
Fascias, Soffits and guttering newbury
12th December 2019

Timber Windows & Doors

Castle Windows are proud installers of real ...
Read More

New Website Launch!

Castle Windows are proud to announce that our ...
Read More