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Bay or bow windows that are draughty and hard to open, with frames that have warped or deteriorated over the years.
Cristal Windows provides expert double glazing installation to homeowners across Berkshire, covering Ascot, Windsor, Wokingham, Crowthorne, Sunningdale and surrounding areas across the SL and RG postcodes. From heritage properties near Windsor Castle to family homes in Wokingham’s newer estates, we fit high-performance uPVC, timber and aluminium windows and doors to suit every property style. Triple glazing is also available for homeowners looking for the best in energy efficiency and noise reduction.
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Bay or bow windows that are draughty and hard to open, with frames that have warped or deteriorated over the years.
Heating bills that keep climbing because your existing glazing isn’t retaining warmth the way it should.
Original timber frames that need constant upkeep, with regular sanding, painting and repair just to keep them looking presentable.
A front door or garage door that looks tired and dated, letting down the kerb appeal of the rest of your property.
Berkshire has a wide mix of property styles, from period homes in Windsor and Sunningdale to modern developments across Wokingham and Crowthorne. Whatever the age of your home, outdated windows and doors can quietly drain your energy budget and make rooms less comfortable to live in. If you’ve been putting off an upgrade, the difference new glazing makes is often bigger than homeowners expect.
See how we help homeowners across Berkshire improve comfort, efficiency and kerb appeal with the double and triple glazing for their property.
At Cristal Windows, we work with homeowners across Berkshire to replace ageing glazing with modern, high-performance alternatives that match the character of each property. Whether you need elegant bay windows for a period home in Windsor, a bespoke conservatory in Wokingham, or coloured aluminium frames to suit a contemporary build in Crowthorne, we provide A-rated double and triple glazed solutions designed to last.
Bay and bow windows – Add space, light and character with bespoke bay and bow window installations in double or triple glazed configurations.
Timber and uPVC replacements – Replicate the look of original frames with modern, low-maintenance double glazed units that are thermally efficient.
Coloured frames and aluminium – Choose from over 200 RAL colours or slimline aluminium profiles to create a finish that complements your home.
Doors, conservatories and orangeries – Complete your upgrade with a replacement front door, garage door, or a bespoke conservatory or orangery designed around your home’s architecture.
Every installation is carried out by our FENSA-registered team, ensuring full compliance with building regulations. Get in touch for a free, no-obligation quote and expert advice on the right glazing for your Berkshire home.
Our experience with Cristal Windows was seem-less from first quote to final installation. We found Steve to be professional, knowledgeable and friendly. We had several quotes for the work carried out and Steve’s pricing was exceptionally fair, he was also not pushy.
Cristal Windows is your trusted partner for double glazing in Berkshire, offering a wide selection of windows, doors, and conservatories designed to enhance your home. We also offer advanced triple glazing options for even greater energy efficiency. Our high-performance glazing solutions not only boost energy efficiency but also improve security and curb appeal. Whether you’re upgrading existing fixtures or adding a new conservatory, we ensure that our products meet the highest industry standards.
With our online double glazing quoting tool, you can obtain an instant, detailed estimate tailored to your project. We believe in transparency, so you’ll have full visibility on costs before committing. Additionally, we offer flexible financing options, allowing you to improve your home at a pace that suits you. Our expert installation team works efficiently to minimize disruption while delivering outstanding results.
For a more personalized consultation, our experienced team is available to assist you. Visit our contact page to reach out, and we’ll be happy to guide you through the best double glazing and triple glazing solutions for your home in Berkshire.
Cristal Windows, doors & Conservatories Ltd is an Introducer Appointed Representative (Financial Services Register No. 1009945) of Phoenix Financial Consultants Limited (Phoenix). Phoenix is a credit broker, not a lender. Phoenix is authorised and regulated by the Financial Conduct Authority (FRN: 539195), and offers finance from its panel of lenders. All finance subject to status and credit checks.
Cristal Windows is accredited by FENSA, Which? Trusted Trader, GGF (Glass and Glazing Federation) and other leading industry bodies, ensuring top-tier quality, safety, and reliability for every installation.
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We offer expert installation of high-quality triple and double glazed windows, doors, bi-fold doors, patio doors, composite doors, conservatories, and roof lanterns. If your home is located outside of the areas we typically cover, feel free to give us a call—we’re happy to discuss availability and may still be able to arrange an installation in your area.
When you choose Cristal Windows for your local double glazing and triple glazing installations, you are not only choosing an ethical, professional and family run business, but also a window company that provides high-quality products. We take the utmost care when installing our range of windows, doors, and conservatories and are accredited by trustworthy schemes such as FENSA.
We offer installations to homeowners in Berkshire, Hampshire, or Surrey.
