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Are you considering upgrading your home with uPVC windows and doors? Before visiting our showroom in Guildford, here’s a handy guide to let you know what exactly uPVC is, and why it has become the material of choice for so many Surrey homeowners.
In this comprehensive guide, we’ll explore everything you need to know about uPVC windows and doors, helping you make an informed decision for your property improvement project.
uPVC (unplasticized polyvinyl chloride) is a rigid, durable form of plastic that’s perfectly suited for window and door frames. Unlike standard PVC, uPVC doesn’t contain flexible plasticisers, making it exceptionally tough and resistant to both physical damage and environmental factors.
Originally developed in Germany in the 1960s, they reached UK shores in the 1980s. Since then, they’ve dominated the British window and door market, with over 85% of UK homes now fitted with double glazing, many using uPVC frames.
One of the biggest advantages of uPVC is its outstanding thermal efficiency. Modern uPVC frames are designed with multiple internal chambers that trap air, creating an excellent insulation barrier.
uPVC windows help in reducing energy consumption, leading to less energy being used to heat homes.
Did you know? Replacing older double glazed windows with new windows that meet current standards can reduce heat loss in an already insulated home by half, from 44% to 22%. This could save homeowners up to £395 per year on energy bills.
uPVC is incredibly durable and can withstand the British weather without rotting, rusting, flaking or fading. Unlike timber alternatives, uPVC requires minimal maintenance – just an occasional wipe down with soapy water keeps them looking their best.
This as you know, is paramount when it comes to your home. uPVC doors and windows from quality suppliers like Sheerwater Glass are secured with sophisticated multi-point locking systems that meet British Security Standards. The rigid nature of uPVC also means frames can’t be easily forced or damaged by would-be intruders.
Living near busy roads or under flight paths? uPVC windows provide excellent sound insulation, helping to create a quieter, more peaceful home environment. Combined with the right glazing options, they can significantly reduce external noise.
Additionally, uPVC window frames help in preventing condensation, which can indicate poor insulation and frame quality.
uPVC offers an excellent balance of quality and affordability. While timber and aluminium options have their merits, uPVC double glazed units typically provide the most cost-effective solution without compromising on performance or appearance.
Modern uPVC is recyclable and can be repurposed multiple times without losing quality. In fact, many manufacturers now use recycled uPVC in their production processes, making it an increasingly eco-friendly choice. Additionally, manufacturers strive for an environmentally friendly manufacturing process, contributing to sustainability.
At Sheerwater Glass, we offer a variety of uPVC window styles to suit every home type in Surrey and the surrounding areas. Our diverse range of window styles ensures a perfect fit for every home type.
These are the most popular window style in the UK. Hinged at the side, they open outward like a door, providing excellent ventilation and unobstructed views. Their simple design ensures a tight seal when closed, maximising energy efficiency and security.
Perfect for period properties, our uPVC sash windows combine traditional aesthetics with modern performance. They slide vertically, maintaining the classic look of Georgian and Victorian homes while offering all the benefits of contemporary materials. uPVC sliding sash windows are designed for functionality and ease of use, featuring finger lifts for raising the sash and a sash guide catch for convenient cleaning.
Offering ultimate versatility, these windows can open inwards, tilting from the top for secure ventilation and easy cleaning, or open fully from the side for emergency exits. They’re ideal for upper floors where external cleaning would otherwise be difficult.
Our exclusive slimline uPVC windows feature 12% more glass and ultra-slim profiles, achieving a modern, minimal look. They’re perfect for maximising natural light while maintaining excellent thermal performance.
Make a striking first impression with our stylish and secure uPVC front doors. Available in various styles, colours, and finishes, our doors come with high-security, fully adjustable multipoint locking systems and anti-drill, anti-pick, anti-snap, and anti-bump locks. Additionally, we offer a range of hardware options, such as robust metal window handles and specialised locking mechanisms, to enhance both functionality and aesthetic appeal.
Add a touch of elegance to your home with our uPVC French doors. They’re perfect for creating a seamless transition between indoor and outdoor spaces, flooding rooms with natural light while maintaining excellent security and insulation.
Our French doors are available in various UPVC finishes, including the popular light oak woodgrain color option.
Ideal for creating a modern, space-saving connection to your garden or patio area, our sliding doors run smoothly on high-quality tracks and feature multi-point locking for peace of mind.
The uPVC market continues to grow, with global valuations expected to rise from $63.99 billion in 2024 to $115.13 billion by 2034, growing at a CAGR of 6%. This growth is driven by increasing demand for energy-efficient and fire-resistant building materials.
In the UK specifically, there’s a growing awareness of how crucial window efficiency is for reducing carbon emissions. With 24% of the UK’s carbon emissions coming from the residential sector, upgrading to energy-efficient windows and doors is more important than ever. There is also an increasing demand for replacement uPVC windows that are energy-efficient and customisable.
Recent research indicates that almost a quarter of UK homes have double glazing that is at least 20 years old and doesn’t meet today’s standards. With 80 million windows needing replacement to meet the government’s net zero targets, there’s never been a better time to upgrade.
Established in 1972, Sheerwater Glass has been serving Surrey homeowners for over 50 years. Here’s why we’re the trusted choice for uPVC windows
With decades of experience, our team has the knowledge and skill to advise on the best window and door solutions for your specific needs.
We partner with leading suppliers to ensure our uPVC products offer the highest standards of performance, security, and durability.
Our expert installation teams ensure your new windows and doors are fitted to perfection, maximising their energy efficiency and security benefits.
Accurate measurement is crucial for proper installation and maximising energy efficiency.
Our uPVC products come with a 10-year installation guarantee, giving you complete peace of mind.
Based in Surrey, we understand the architectural styles and requirements of local properties, from modern developments to period homes. Our products are made in Britain, emphasising the quality and craftsmanship of British manufacturing.
Quality windows and doors typically last 20-30 years with proper care. They are guaranteed not to warp, split, or discolour, adding to their durability. They won’t rot, rust, or corrode, making them incredibly durable compared to other materials.
While traditional uPVC was only available in white, modern uPVC products come in a wide range of colors, including white uPVC, and wood-grain effects. Once manufactured, uPVC is not typically painted, but comes in your chosen color from the factory.
Modern uPVC windows with double or triple glazing are capable of achieving an A+ window energy rating, significantly reducing heat loss and lowering energy bills.
Yes, modern uPVC is 100% recyclable and can be repurposed multiple times. Many manufacturers now use recycled content in their production, making it increasingly eco-friendly. They strive for an environmentally friendly manufacturing process, contributing to sustainability.
Secured uPVC doors and windows from suppliers like Sheerwater Glass feature multi-point locking systems that meet or exceed British Standards for security.
Whether you’re looking to improve energy efficiency, enhance security, reduce noise, or simply update the appearance of your property, uPVC windows offer an exceptional combination of performance, durability, and value.
At Sheerwater Glass, we’re committed to helping Surrey homeowners make informed decisions about their property improvements. Our expert team is ready to guide you through the options, answer your questions, and provide a free, no-obligation quote tailored to your specific requirements.
Contact us today to discover how our uPVC windows and doors can transform your home, or visit our showroom in Woking to see our products up close.
Note: This blog post was created in May 2025. Energy efficiency statistics and market data are based on information available at the time of writing.
By Jessica Stevens
One of our team would be happy to have a chat with you about your requirements, answer any unanswered questions and measure up at a time that suits you to provide you a free, no obligation quote.
“Used the Sheerwater team to replace a couple of Velux windows in our converted loft. Really first class experience, great communication throughout, super professional and the installation was the best we've had in terms of fit and finish and (lack of) damage to surrounding areas. Will use again!”Tim Loake
Sheerwater Glass provides window installation and repairs throughout Surrey and the surrounding areas of our Woking showroom. If you’re interested in our services, we encourage you to check if we serve customers in your area by simply typing in your postcode.
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