Business Details
Premium Windows & Doors in Crawley
Established as a trusted supplier in Crawley, West Sussex, Diamond Glass & Windows has built a reputation for excellence in providing high-quality UPVC, Aluminium, and Timber Windows and Doors. As part of the Shaws Group, a leading double and triple glazing specialist, we combine decades of industry expertise with a commitment to customer satisfaction. Our team of skilled professionals delivers tailored solutions, from residential conservatories to commercial glazing, ensuring precision and durability. With a focus on innovation, we offer advanced products like high-security locking systems and energy-efficient glazing options.Our dedication to quality is underscored by a 10-year guarantee on all installations, reflecting our confidence in every project. Serving Crawley and surrounding areas, we prioritise clear communication, timely quotations, and meticulous aftercare. Our showroom network and virtual design tools enable clients to explore options conveniently, while our partnerships with leading brands ensure cutting-edge specifications. Customer testimonials consistently highlight our professionalism, attention to detail, and the transformative impact of our installations on homes and businesses.
Services
Windows
Doors
Conservatories
Bi-Folds
Patio Sliders
Composite Doors
Commercial Glazing
Roof Systems
Glazing Options
Door Locking Types
Highlights and features
- We offer a 10-year guarantee on all products and installations.
- Our team provides timely quotations based on pictures and measurements.
- We are part of the Shaws Group, a leading double glazing specialist.
- Our products include high-security locking systems and energy-efficient glazing.
- We have a vast range of UPVC, Timber, and Aluminium options.
What people say
Very professional, friendly
Clean and tidy
Excellent workmen
Highly recommended
Transformative results
Services
Windows
We supply and install high-performance UPVC, Aluminium, and Timber Windows tailored to residential and commercial needs. Our products enhance thermal efficiency, security, and aesthetics while complying with modern building standards. Available in casement, sliding, and heritage styles, our windows combine durability with customisable designs to suit any property.
Doors
Our doors include composite, bi-folding, and sliding options designed for security, insulation, and style. Featuring high-security locking systems and premium finishes, they cater to both modern and traditional properties. Customisable to match architectural specifications, our doors ensure seamless integration with existing structures while enhancing functionality.
Conservatories
We design and construct thermally efficient conservatories using durable materials and innovative roofing systems. Available in classic or contemporary styles, our conservatories maximise natural light and provide versatile living spaces. All installations include energy-efficient glazing and low-maintenance frameworks for long-term performance.
Commercial Glazing
Our commercial glazing solutions offer robust, secure, and visually appealing installations for businesses and public spaces. Products include shopfronts, curtain walling, and fire-rated systems, engineered to meet strict safety and energy regulations. Tailored to high-traffic environments, they ensure durability without compromising on design.
Glazing Options
We provide advanced glazing solutions, including triple glazing, decorative glass, and acoustic insulation. These options improve energy efficiency, noise reduction, and security while allowing customisation through patterns and finishes. Ideal for upgrading existing installations or enhancing new builds with premium performance features.
Questions
What areas do you serve?
We operate across Crawley, Brighton, Shoreham, and surrounding areas in West Sussex.
Do you offer a guarantee on installations?
Yes, all our products and installations come with a 10-year guarantee.
Can I get a quote remotely?
Yes, our sales team provides timely quotations based on photos and measurements.
What types of doors do you supply?
We offer composite, bi-folding, sliding, and high-security doors in various finishes.
Are your products energy-efficient?
Yes, our windows and doors feature energy-efficient glazing and thermal breaks.
Do you have showrooms?
Yes, visit our Crawley, Shoreham, or Brighton showrooms by appointment.
Reviews (6)
Jamel Khan
May 06, 2021
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This place is closed. If you call you get transferred to a company in Brighton. Try Arctic glass towards Crawley down.
Simon Mizzi
Jun 23, 2020
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Arranged an appointment for a quote. I was given a time slot of 10am-12am. So I waited in and nothing. No phone call, no email nothing. When I contacted them I was asked via email if they had my address etc. What a company. Make an appointment then check after the event if they had my details. Will not be using this company for my double glazing. Complete joke.
Quasim Suhail
Jun 19, 2020
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I was let down by the bathroom company supplying the mirror so called these guys and within 24 hours I have my mirror! What fantastic customer service. Right from the beginning when I spoke with Gary to collecting the mirror. Superb. I wish you guys the best!
Martin Vyse
Apr 28, 2020
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I called in with a glazing problem & was given a cost effective solution which even as DIYer I could tackle myself. Brilliant!
Alison East
Mar 18, 2020
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What a pleasure it was to do business with this company. Only wanted glass to fit an internal door but they were efficient and even delivered it to my mothers house at no extra cost. Staff were outstanding, friendly and gave advice without asking.
Rits Spine
Feb 23, 2020
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The most upsetting encounter with Mr J d Osborne. Terrible customer service. Talks over you. He do not listen. He quotes rules and regulations even when it is not necessary. He is right, you ( the customer) are wrong. And when he cannot have his way he just hang up on you. Incredibly rude! I would not use this place ever again even if it was the last shop standing in the whole of Crawley!
