Beautiful Flush Casement Windows

We here at Synergy Windows take pride in delivering some of the best double glazing solutions in Darlington, Harrogate, Ripon, Northallerton, Stokesley, Yarm and the nearby towns. That is why we supply and fit flush sash windows. These have been carefully chosen from leading manufacturers’ REHAU. These installations come from their stunning range of window options.

These combine functionality and form. Classic and timeless aesthetics are enhanced through modern performance and innovation. These double glazed flush sash windows will transform your thermal performance, security, soundproofing and weatherproofing. We are confident that these are a worthwhile investment that will protect you and potentially help you to save money.

Taking inspiration from traditional timber joinery, these profiles will provide outstanding performance and smooth functionality. These will not be affected by the weather or from being exposed to hot or cold climates. If you would like to find out more information, please reach out to us today. We are ready and waiting to hear from you!

Flush Sash Windows Features

Low Maintenance

Despite emulating the look of a traditional timber profile, our flush sash windows are incredibly low maintenance. This means that you won’t have to waste your time sanding them down or repainting them to have them stop working soon after. There will be no bending, bowing, cracking or rotting. Instead, enjoy enduring aesthetic appeal.

Thermal Performance

With each of our flush sash windows, you can be sure that they will keep your home warm. This is important during those cold winter months. However, they work the opposite way – keeping heat out – during the summer too. You could save money on your energy bills and shrink your carbon footprint significantly. Get in touch today!

Home Security

Our flush sash windows feature a robust design that utilises multi-point locking mechanics. This is to ensure that you have peace of mind that no unwanted visitors can gain unlawful entry to your property. You and your family will benefit from enhanced protection so that you can rest easy and relax knowing that you’re protected.

Perfect For Hertiage Sites

One of the significant benefits that come from flush sash windows from the Rio collection from REHAU is the fact that it can benefit heritage properties. If you live in a heritage site, conservation area or even a listed building our double glazed flush casement windows can be the ideal solution for you.

They adhere to the period aesthetics by replicating traditional joinery styles. We always encourage to check with local planning authorities and building regulations. However, these flush sash windows are constructed with conservation and building regulations in mind. Cut through the red tape with our flush sash windows. Living in a traditional structure doesn’t mean that you have to deal with cold spots, draughts and condensation. These can often lead to mould growth within the home, which is damaging to your health.

Our goal is to make your double glazing dreams become a reality. We also want to protect you from things that can cause health problems. Our flush sash windows can provide you with everything you need to get your home performing at the optimum level. However, these aren’t just for heritage buildings. Their minimalist style will also be the perfect fit for a modern or contemporary solution.

Customisation Options

Our flush sash windows don’t just come in a single colour. You can choose from a range of stunning woodgrain foils that come in a wide range of colour shades. These colours have been inspired by the outdoors. This means that you can get an installation that seamlessly complements your garden as well as your property. This means that you can get the installations that are built to last. If you have any questions, please do not hesitate to reach out to us today!

View the REHAU Brochure

Flush Sash Windows Video

Flush Sash Windows Prices

We supply and install beautiful flush sash window to homeowners in Darlington, Harrogate, Ripon, Northallerton, Stokesley, Yarm, Richmond and the surrounding areas. Our team will install these profiles quickly and efficiently for your benefit.

If you would like a quote, please use our online cost calculator. This will take you through a simple step by step process that will require you to design your ideal installations. This is a free, no-obligation price, so there is no need to fret!

Alternatively, you can reach out to us today by using our online contact form. One of our helpful and friendly team members will get back to you with everything you need to know about our flush sash windows. We will gladly answer any questions that you may have about our flush sash windows.

We hope to hear from you very soon!


Start Your Flush Sash Windows Quote

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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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