Call 01977 649641 (Mon-Thurs 7:30am-4:30pm Fri 7am-3pm)

uPVC Mock Sash

Our uPVC mock sash sliding windows create the appealing appearance of a traditional vertical slider whilst utilising performance value of high quality uPVC range. Based on our stormproof window and utilising scribed mock horns to maintain the traditional appearance, this is a viable alternative to the traditional style with a dummy sash.
  • Available in Deceuninck 2800 decorative profile
  • Secure guarantee on products that feature MACO locks
  • Tested for durability and use
  • Range of colours and foiled finishes available
  • Choice of Fab & Fix hardware, or 'From the Anvil' ironmongery
  • Exceptional energy efficiency
For those customers looking to combine style and performance, our uPVC mock sash casement windows are the ideal solution. Combining the durability of our stormproof profiles with an unmistakable aesthetic that is highly desirable for many homeowners, our mock sash uPVC window styles offer countless advantages and a wide range of customisation options for your customers to choose from.

 Start Trade Quote
Bespoke timber conservatory

Give your customers a stylish alternative

Offer your customers uPVC mock sash windows that will add style and value to their home. They achieve 500 hours salt spray resistance, which can be doubled for coastal areas. Our friction stays enhance corrosion resistance – making our supply of mock sash windows suitable for all locations, regardless of weather conditions.

Why choose our uPVC mock sash casement windows?

  • Aesthetic appeal that suits all homes
  • Achieves ‘A’ window energy rating for high performing thermal insulation
  • Meets BS7950 security standards and Secured By Design police initiative
  • Friction stays tested to 30,000 full cycles
  • Choice of chamfered or decorative profile styles to suit all tastes
  • Choose from traditional or contemporary Fab & Fix hardware, or ‘From the Anvil’ ironmongery


High quality colour finishes

We have a wide range of ways for you to allow the consumer to personalise their uPVC mock sliding sash windows. We offer the choice of woodgrain foils to give the elegance of timber in colours such as Golden Oak and Chartwell Green. These give a professional finish without the maintenance required of timber, earning our uPVC mock sash windows the high performance and low maintenance reputation they are renowned for. Our popular Heritage shades are extremely durable and even allow a different colour on the interior frame. Our popular Heritage (H) shades are extremely durable and even allow a different colour on the interior frame. Our fast-track (F) colours are perfect if you need your uPVC casement windows quicker.


Energy efficient glazing options

We’re proud to offer uPVC mock sliding sash windows that deliver exceptional energy efficiency for your customers. Our exceptionally efficient glazing is available in a range of decorative styles which can also maintain privacy. From ripple effects to floral patterns, we can offer a wide variety suitable for all tastes. Leaded glass and astragal bars can also be incorporated into our windows to add some character to a modern home or emphasise a period property’s charm. Combining stunning aesthetics with promises of modern performance and delivering on all counts, uPVC mock sash windows from us are an excellent investment for your customers.


High quality hardware options

Our commitment to providing you with bespoke uPVC mock sash windows in a range of styles has led to us offering a vast selection of hardware accessories. Our trade supply of Deceuninck uPVC windows also come with Fab & Fix handles as standard, which have been tested for use thousands of times. For more premium applications, we offer the option of ‘From the Anvil’ ironmongery for a more traditional look. From PAS24 espagnolettes to shootbolts, all our locks offer security as well as style for uPVC windows without compromise.

Efficiency & Security

uPVC mock sliding sash casement windows that offer thermal performance to end users

For peace of mind and reduced energy bills, our uPVC casement windows achieve A+ WER ratings and are registered under the BFRC. We can simulate any glazing specification with our windows, making it easy for you to meet end user requirements. We put our products through their paces so you can be sure you’re making the right investment for your customers. When it comes to our uPVC mock sash window styles, we’re confident we will meet and exceed your expectations.

A key selling point of security

To appeal to the most discerning of homeowners, our uPVC stormproof casement windows achieve Secured by Design status, and any product that features MACO locks is backed by their secure plus scheme, which includes a decade of cover, emergency lock breakdown service and a secure key holder scheme. For security-conscious homeowners, our uPVC casement window styles offer total peace of mind with bespoke customisation to meet their needs.

Our uPVC windows and doors feature shoot bolts, mushroom adjustable cams, Fab & Fix handles, reinforced frames and hinge protectors that act as an anti-jemmy solution. With options for lower and higher budget specifications too, security is a selling point guaranteed if you choose our trade supply of uPVC casement windows.

Become an Inspire installer

Inspire your customers with the Inspire range from Dempsey Dyer with a dedicated retail website.

Inspire range logo Contact Dempsey Dyer

Download Centre

If you want to know more about our products, processes and accreditations, fortunately we offer a range of downloads. Download a range of literature free of charge, to refer to in your own time.

View all downloads


Installers and other businesses can only work effectively if they have a reliable trade supply service – offering the highest performing products. Luckily, here at Dempsey Dyer we only supply the latest options from market leaders. This guarantees quality, performance and durability – regardless of the product choice.


Get a Trade Quote

Colour matcher

Use our online
Quoting Tool

Copyright © 2024 Dempsey Dyer Ltd | Company No. 01309583 - Registered in England and Wales | website terms and conditions | modern slavery policy