Competitive uPVC Sliding Sash Window Prices

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Why Choose Us?

Sash Window Styles East Grinstead


A wide spectrum of design choices are available. Find your preferred uPVC sash window style and enhance it with your desired colour and finish.

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The colour of your new installation won’t fade; the performance of your double glazing won’t diminish over time either.

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Our aim is to install uPVC sash windows of the best quality for our East Grinstead customers, but without compromising on service.

uPVC Sash Windows Made by Leading Manufacturers

Our stunning uPVC sash windows are designed and tested by Masterframe, a recognised leader in the double glazing industry.

When selecting from our Masterframe portfolio, you’ll be able to pick your preferred product from the Classic or Vintage Collection.

The Perfect Fit

Your newly-installed uPVC sash windows will blend in with the architectural style of your home in East Grinstead. Explore our exquisite range of colours and authentic looking woodgrain foils to truly refine the design of your double glazing.

Strong Performance

The eye-catching designs of our uPVC sash windows are matched in equal measure by outstanding performance. Your installation will deliver market-leading thermal efficiency levels that’ll keep your home in East Grinstead warm 24/7.

Better Protection

Your priority is keeping your home protected from unauthorised attempts to gain access. Your new double glazing will keep you, your family and possessions safe from most intruders, thanks to the market-leading hinges and locks included as standard.

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We Offer Stunning uPVC Flush Sash Windows, Too

Explore our range of beautiful uPVC flush sash windows if you’re looking for inspiration for your home improvement project.

Our flush option is manufactured by Halo, a company recognised for the strong visual quality and performance of its designs.

Authentic Appearance

You can take a closer look at flush designs by visiting almost any traditional home in the UK. If you want to add a touch of period style to your home, the flush frames that typify this design of window will give you the authentic look you desire.

Shut Out the Cold

Our uPVC sash windows perfectly fuse enduring heritage aesthetics with thoroughly modern performance. The thermally broken profile included as standard with your new double glazing will create a protective barrier that’ll keep your home in East Grinstead warm.

Better Peace of Mind

The security hardware built into all of our uPVC sash windows has been designed to stop almost all intruders in their tracks. The cutting edge locking mechanisms included with your purchase will deter even the most persistent and experienced of burglars from entering.

The Stylish Option

Improve the market appeal and value of your home in East Grinstead, so that guests will comment on the appearance of your uPVC sash windows. Potential vendors will also be tempted by the enduring grandeur of your brand new double glazing.

Contact Thermaframe to discuss the style options available and learn more about the performance of our exquisite flush Halo range today.

What Do We Offer?


Outstanding Thermal Efficiency

Our uPVC Sash and Flush Sash windows excel at retaining heat. Enjoy lower U-values and a better Windows Energy (WER) rating with our high-performing double glazing.


Are You Replacing Your Windows?

If you live in a heritage area and need to remove windows that are no longer performing, our team can install new units that will deliver improved aesthetics and better performance.


A Unique Look To Match Your Home

Make your property in East Grinstead stand out by enhancing your uPVC sash windows with a colour that matches your decor and an authentic-looking woodgrain foil that looks just like timber.


More Time For Other Things

Unlike wooden windows, our sash and flush sash range require only periodical cleaning and maintenance to maintain their fresh appearance - so you’ll be able to relax in your East Grinstead home more often.


Extremely Durable Double Glazing

You want your new uPVC sash windows to last. Our Halo and Masterframe products are weather proof. They can also resist harsh impacts, resulting in double glazing that’s extremely resilient.


Setting the Industry Standard

Thermaframe has chosen windows built only from the best materials. Our double glazing includes market-leading hardware, glazing, accessories that come as standard with every purchase.

uPVC Sash Windows Prices - East Grinstead and Local Areas

Get a fast answer to your questions – and a guideline quote – when you call or email the Thermaframe team. Get costs for your project quickly by visiting our design tool as often as you need to, then contact us to arrange for us to visit you in your East Grinstead home.

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