Diamond Windows

Business Details

Expert UPVC Windows, Doors & Conservatories in Birmingham

Established over three decades ago, Diamond Windows has become a trusted name in the West Midlands for premium uPVC windows, doors, conservatories, and porches. Our team combines extensive industry experience with government-certified expertise as a Certass installer, ensuring every project meets rigorous standards. We specialise in tailored solutions that enhance property value while prioritising energy efficiency and security. Our commitment to quality is reflected in our A-rated windows, competitive pricing, and comprehensive 10-year guarantees.

With a reputation built on reliability and customer satisfaction, we serve areas including Birmingham, Solihull, and Sutton Coldfield. Our no-deposit policy and flexible financing options through Phoenix Financial Consultants make home improvements accessible. Customer testimonials consistently highlight our punctuality, craftsmanship, and exceptional service, with projects completed to the highest standards from initial consultation to final installation.

Services

UPVC Windows Composite Doors Conservatories Porches Vertical Blinds

Highlights and features

Over 30 years of window and conservatory installation experience
Government-certified Certass installer for building regulations compliance
No deposit required - pay on completion
10-year guarantee on white uPVC frames
Serving West Midlands areas including Birmingham, Solihull and Sutton Coldfield

Associations and certifications

Certass

What people say

Very happy Highly recommend Excellent communication Competitive pricing 10-year guarantee

Website

Update Listing

Services

UPVC Windows

Custom-designed A-rated uPVC windows offering energy efficiency and noise reduction. Available in casement, bay, bow, tilt n turn, and shaped styles with multiple colour options. Enhances property value while reducing heating costs through superior insulation.

Composite Doors

High-security composite doors combining modern materials with timber aesthetics. Features include hook locks, flag hinges, and multiple colour choices. Provides enhanced security and thermal efficiency while maintaining visual appeal for property exteriors.

Conservatories

Custom-built all-year-round conservatories with energy-efficient glazing and polycarbonate or glass roofs. Available in Edwardian, Victorian, lean-to, and orangery styles. Increases living space and property value with durable, weather-resistant construction.

Porches

Made-to-measure uPVC porches with brickwork bases and tiled roofs. Enhances home security with advanced locking systems while providing weather protection. Improves energy efficiency through draught reduction and thermal insulation.

Vertical Blinds

Custom vertical blinds for windows and conservatories with various colour and design options. Includes full fitting service at competitive pricing. Provides light control and aesthetic enhancement for residential properties.

Questions

What areas do you cover?

We serve Birmingham, Solihull, Sutton Coldfield, and surrounding West Midlands areas including Shirley, Castle Bromwich, and Redditch.

Are your installations certified?

Yes, we're a government-certified Certass installer, providing Building Regulation Compliance Certificates with all our work.

Do you offer payment plans?

We offer flexible financing options through Phoenix Financial Consultants, with no deposit required - pay on completion.

What guarantees do you provide?

We offer a 10-year guarantee on white uPVC frames and comprehensive warranties covering all our installations.

How long does installation take?

Project timelines vary by complexity but we complete most window and door installations within agreed schedules, typically 1-2 weeks.

Can you help with conservatory upgrades?

Yes, we specialise in full conservatory builds and renovations, including roof upgrades and energy-efficient glazing solutions.

Reviews (5)

Write a Review

Eliza Levene

Dec 29, 2021 Report

This place needs to hire new drivers. Some ginger who clearly doesnt know how to drive is in the lane to merge onto I-90 and then decides to just completely disregard the traffic lanes and merges into my
Lane when he sees me already driving next
To him. Then he proceeds to follow and tailgate me. Screaming things at me when he knows hes in the wrong. I called the company to report him so lets see if they actually do something about this dumb ginger in a red hat. Ill be following up. But I wouldnt recommend hiring a company who cant control
Their own drivers. Clearly people

Xw Zf

Jul 07, 2021 Report

I would not give any star if there is an option. This company has the worst customer service. They have problems charging my credit card even though no other vendor has any problems. They have been saying it is my problem and the person there doesn't even try to place the order and keeps on complaining my card. Ironically I had used the same card placed an order from them last month. I told her just to place the order ( just try it) since she kept on complaining. No actions were taken by this lady except for complaining. I have to stop her asking her to place the order but she told me she would

Bryan Yoon

May 07, 2021 Report

This is what happens to Diamond double hung windows after 10 years. Their warranty only partially covers these defects (20% of part), so spend your money wisely. Window replacement in Boston goes for about $400-500 per window, and I have 22 of them at my house. You do the math.

Chris Papetti

Aug 25, 2019 Report

I would think twice before working with Diamond window. Have a home full of Diamond windows. Less than 10 years old and half dont open or wont stay open. They offer no support paid or unpaid and are rude to deal with. Ive had much better performance and customer service from other brands.

Trenton Monges

Aug 01, 2019 Report

We used Diamond windows to do our office windows in NYC, and I have to say they are phenomenal. This is a family run business that has been around for 20+ years. Their knowledge and experience was a pleasant surprise when it came to selecting and pulling the trigger on the windows we needed. It was clear they were professionals in the window manufacturing industry. They did the work quickly, and efficiently. I had a lot of questions and the workers were more than happy to answer each and every one. I couldnt have asked for a better experience. USE USE USE these guys for any window needs, you