The UK’s Industry-Standard uPVC Windows


uPVC Windows are next to maintenance-free, quiet, and incredibly secure. Sleep well at night, knowing you and your family are safe and secure. Due to recent advances, uPVC windows are made to achieve an A-rated window energy rating.

Our uPVC windows ensure heat retention. This adds value to your property and saving you money on your energy bills. uPVC windows are a great investment for any homeowner. They are also timeless and offer an excellent aesthetic. These profiles can be tailored to any home style from new builds to heritage properties.

New techniques even allow you to customise your casement windows. Choose from a variety of colour finish options with a guarantee for ten years as standard. Ensuring your windows deliver on appearance as well as performance.

uPVC Casement Windows Features

20 Year Guarantee on uPVC

Here at Synergy, we take the stress out of purchasing uPVC windows by giving every customer a comprehensive 20-year guarantee. Combining this factor with our premium quality materials and our always professional installation, rest assured that you're bringing home a new window that continues to bring you value and performance even years after the initial setup.

Energy Efficient Windows

We understand one factor that turns a house into a home is comfort. Our uPVC windows are purposefully designed to achieve an impressive degree of thermal efficiency. Meaning you and your family will be warm and cosy even in the cold winter months. This is only made possible due to our smart multi-chamber profile system. This works to trap pockets of warm and keep the heat in your home for a longer period.

Extremely Secure Windows

Our uPVC windows offer a high level of security. This will give you peace of mind that not only you but your family are secure. Our uPVC windows utilise a combination of aspects. They achieve and maintain both a high level of security as well as structural integrity. Again, this is attained through high-grade materials. That allows our windows to offer an impressive degree of base security, complemented by a high security locking system that is fitted into the frame.

Additional uPVC Window Options  

uPVC Flush Casement windows

We pride ourselves in providing professionally installed flush casement windows across Richmond, Yorkshire and surrounding areas. This is because we know we are providing the solution to a safer and warmer home. These flush casement windows are classic, timeless and visibly stunning. These double glazed windows will transform your home by soundproofing and weatherproofing. It's no question that our flush windows are a smart investment for any homeowner seeking security and warmth.

uPVC Sliding Sash Windows

Our sash windows are the solutions to modern performance and traditional beauty. After installation, you will be able to enjoy heritage beauty without having to miss out on modern performance like thermal efficiency, security, durability, and weather protection. The modern advanced technology enables these visually traditional windows to perform like contemporary profiles by keeping sound out and heat in.

uPVC French Casement Windows

Our uPVC French casement windows have even recently been awarded an A rating for window energy ratings. Despite the traditional look you can still customise the look and feel of your windows by choosing one of our seven colours. These beautiful windows open to give you an undisturbed view of your garden. We have no doubt our uPVC French Casement windows can add charm to any house.

Market-Leading uPVC Windows


Our uPVC windows are expertly developed and manufactured to provide you with the highest standards of:

  • Security
  • Efficiency
  • Durability
  • Performance
  • Aesthetics

These windows are your solution to a warmer, safer and more welcoming home in any season. Our uPVC windows don’t only offer impressive performance but also complement an already beautiful home or even make a beautiful home. This can be achieved by our extensive range of new colour options and styles.

This even includes an array of wood grain options to help you achieve the look of traditional timber without the maintenance of real wood. Adding to this, the qualities of uPVC enable our windows to be astonishingly low maintenance just by design. This means unlike traditional timber which can become a real headache, you can have peace of mind that they won’t chip, rot, warp or discolour.

Secured by Design

Secured by Design is a police backed initiative that determines products for their crime prevention performance. Our uPVC windows were able to achieve an SBD certification. So, our windows are making homes in Richmond, Yorkshire and surrounding areas safer and secure.

View the Deceuninck Brochure

uPVC Windows Prices Richmond, Yorkshire


For a free, instant, and competitive uPVC window quote just check out our online quoting engine. Follow our simple step by step by step process to get a free, tailored price based on your exact specifications.

However, if you would prefer to get in touch with a member of our help full team reach us via our contact details. We will be more than happy to offer you a quote via this method. We are also more than pleased to answer any questions you may have.

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Glass Options

Glazing Types

Decorative Glass

Glazing Profile

Glazing Profile

The Differences Between Double and Triple Glazing

The main difference between double and triple glazing, besides the obvious, is the thermal efficiency standard that they each achieve. In short, a triple glazed window will keep the warmth in your home for a longer period of time. This is measured by something known as a 'U-Value', which is a measurement of thermal transmittance (the heat exiting your home). The lower the U-Value, the better the thermal efficiency. With this in mind, triple glazed windows have a lower U-Value than double glazed windows.







































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