Castle Windows specialises in advanced uPVC technology, engineered for superior thermal insulation and structural integrity. Our collection includes Flush, Sash, Tilt and Turn, and Foiled designs, ensuring every installation meets the highest architectural standards. We utilise premium Aluplast profiles to ensure every window is built to withstand the elements while providing a maintenance-free, stylish finish for your property.
Modern uPVC is a naturally poor conductor of heat, making it the ideal thermal barrier. Our frames feature a 5-chamber Aluplast internal profile and Argon gas-filled units to achieve industry-leading U-Values. This engineering stops heat loss by creating “dead air” pockets within the frame, ensuring your home maintains an A-Rated energy efficiency level and a lower carbon footprint year-round.
Castle Windows complies with all CE Marking requirements. All external windows exceed these standards, with full compliance handled by our expert installation team.
We recognise that your windows do more than fill an opening; they provide the primary barrier for thermal efficiency and home security.
| Feature | uPVC | Traditional Timber | Standard Aluminium |
|---|---|---|---|
| Maintenance | Wipe-clean only | Needs sanding/painting | Occasional cleaning |
| Thermal Value | Excellent (A-Rated) | Good (if maintained) | Moderate (varies) |
| Durability | 30+ Years | 15-20 Years (approx) | 25+ Years |
| Cost | Most Cost-Effective | Expensive | Premium |
Complete your details to book a free no-obligation appointment. We can help advise on the best technical specifications, arrange a free design consultation, or answer any architectural questions you may have.
Our uPVC windows are engineered to enhance your home’s look while providing modern functionality.
Precision Design Range: Whether you require timeless elegance or contemporary minimalism, our broad array of designs ensures a perfect match. From slimline frames to intricate glass patterns, each window is crafted to enrich both the view and the insulation.
13-Colour Foil Palette: Move beyond standard white with 13 woodgrain foils. These provide the realistic texture of painted timber—including Irish Oak, Rosewood, and Anthracite Grey—for a permanent, weather-resistant finish.
High-Spec Hardware: Customise with professional-grade furniture. Choose from various handles, decorative Georgian bars, and high-security locks to add a personal touch while maintaining mechanical excellence.
At Castle Windows, we are proud to be a leading specialist in the supply and installation of superior uPVC products. From our central base, we cater to a variety of home styles and are dedicated to delivering outstanding technical service to all our customers across the West Midlands and Staffordshire regions.
Our team operates with precision, assisting with high-performance replacements that enhance your property’s efficiency. As a Which? Trusted Trader and Checkatrade-approved supplier, we adhere to the highest industry standards, and all installations are covered by an Insurance Backed 10-year Guarantee.
Posted on mark daviesTrustindex verifies that the original source of the review is Google. Excellent service from start to finishPosted on Mark HudsonTrustindex verifies that the original source of the review is Google. I was very impressed by Castle Windows from the start. We wanted a large sliding patio door replaced with a single pvc door and windows. We needed a cat flap installed in the new door. Carl from the company came to the house and gave me good advice about what options would work for us. He used very handy software on his laptop to show what different options would look like when installed. The quoted price was very reasonable and there was no hard sell. We arranged an installation date and I paid a 25% deposit. The installers, Nathan and Ben, arrived on time on the day. The old patio door was expertly removed, with no damage at all to the existing plaster in our kitchen. The work was completed in about 5 hours. The guys were polite and didn't mind me asking dumb questions. I was most worried about the installation of the cat flap we provided, but they made sure to check with me multiple times before the hole was cut, measuring and letting me re-measure. After installation, I received a building regulations certificate and details of the insurance-backed guarantee. Overall, I was very impressed.Posted on Gary GraingerTrustindex verifies that the original source of the review is Google. We wouldn't hesitate to recommend Castle Windows. The whole experience from beginning to end was hassle free. Carl came out to see us and was very friendly and talked us through all our options. The fitters were great, too. They did a really good job and left everywhere clean and tidy. Thank you to all the team at Castle WindowsPosted on Caitlyn Alderson-WoodallTrustindex verifies that the original source of the review is Google. I couldn't praise Castle Windows enough. Often Window companies offer the earth and once you've signed on the service is paltry. The same cannot be said for Castle Windows, they deliver on the promises they make and leave you pleased you chose them over any one else. Their windows and doors are high quality, and fitted by professional, friendly tradesmen who really know their stuff. You'll hardly know they've been except for your shiny new windows and doors. No mess, no fuss and highly trustworthy. You couldn't ask for more and they won't give you less.Posted on Jason DixonTrustindex verifies that the original source of the review is Google. Great all round well organised and very clean had all new windows and doors with a wall removed for French doors. Highly recommendPosted on Mary MooTrustindex verifies that the original source of the review is Google. Had a patio door replaced by Castle Windows. 1st class service from start to finish. Carl and the team are amazing. I highly recommend.Posted on Kerry HTrustindex verifies that the original source of the review is Google. Great job done of our windows & front door. Quick turn around and fuss free installation. Carl was very knowledgeable and gave us plenty of options and a very reasonable price. Installation team Billy & Josh were great, nice clean finish. The house looks fab thanks Castle Windows!Posted on Helen LeeTrustindex verifies that the original source of the review is Google. Carl's team of installers were extremely and carefully diligent when it came to installing our rear composite door. Will definitely use again.Posted on stephen bsnksTrustindex verifies that the original source of the review is Google. Absolute brilliant company would most definitely recommend to anyone to use All faults retified without a quibble and even replastered the window reviels,which wasn't their fault,Carl and the gang where brilliant from start to finishPosted on Tanya BirkettTrustindex verifies that the original source of the review is Google. Great service from beginning to end from picking the windows and doors seeing it on our telly to see the different designs and colours was really useful, Carl was great helpful and never pushy, the guys who fitted the windows were brilliant on time, worked the whole day, cleaned up and finished a day early and most of all the windows and doors look amazing great company can't recommend them enough