Commercial & homeowner

Vertical Sliding Windows

Sliding sash windows are synonymous with period properties. They are an integral feature of Georgian, Victorian, and early twentieth century homes. Many period properties still have their original timber windows. These may have failed and are no longer safe or efficient. Fortunately, there is a modern alternative.

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  • Screw Icon Quality Products Manufactured bespoke to
    exacting standards
  • Performance profile icon High Performance Ultra thermally efficient
  • Style icon Contemporary Styling Modern sash styling for
    great aesthetics
  • Colour icon Colour Range Standard, premium & RAL
    finishes available
  • Hardware icon Hardware Range Comprehensive hardware
    selection available

uPVC sash windows in Bath, Bristol, Wiltshire and Gloucestershire

At Techniglaze, we install uPVC wood effect sash windows from the Rose Collection. The three suites of windows: Ultimate, Heritage, and Charisma Rose have all the period detailing of traditional timber windows with all the benefits of modern uPVC.

With woodgrain finishes and traditional features such as authentic astragal bars and sash horns, these sash windows are a popular choice with homeowners across Bath, Bristol and the surrounding areas.

The Ultimate and Heritage Rose are so authentic that they are regularly approved for use in conservation areas across the UK. We also install the highest quality aluminium sash windows from Smarts. The Smart VS 600 combines the traditional style and opening function of a vertical sliding sash window with the modern performance of an aluminium profile.

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    Techniglaze uPVC vertical sliding windows can be finished in a selection of durable woodgrain foils. Choose popular White or Anthracite Grey for a modern and understated aesthetic. For a more traditional look, opt for a realistic timber inspired finish. If you want a different look on the interior and exterior of your windows, we offer dual coloured windows for the best in customisation. For our aluminium vertical sliding windows, choose from any RAL colour for their weather resistant powder coat finish.


    Techniglaze uPVC vertical sliding windows from the Rose Collection are fitted with their own bespoke hardware. It is purpose designed to replicate the style of traditional window furniture. For the Smart VS600 aluminium vertical sliding windows we use Caldwell hardware. Established over a century ago, Caldwell hardware sets the standard for high performing, super-secure window locks and handles.


    Techniglaze vertical sliding windows are glazed with high performance glass from either Pilkington, Guardian, or Saint Gobain. Each of these companies supply a wide range of glazing options including energy efficient glass, self-cleaning glass, anti-condensation glass, and textured and obscure glass. All our glazing meets stringent Building Regulations requirements for security, safety, and energy efficiency. For the best in traditional authenticity, choose glazing with Georgian bars or lead detailing.

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    Roseview Vertical Sliding Windows

    Crafted with heritage aesthetics at the forefront, the Rose Collection is made up of three window styles - Ultimate Rose, Heritage Rose and Charisma Rose.

    All three window designs combine traditional timber elegance with the high performance of uPVC. The finished result is an exquisite vertical sliding window that offers heritage charm with modern security and energy efficiency. Contact us today to find the perfect style to suit your needs.

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    Our latest reviews

    Ali & Fi

    We are delighted with the windows, and have already been complimented by our neighbours on the upgrade.

    Tyler and Paul were very professional and showed good initiative for the inevitable adjustments that needed to be made. They were particularly considerate of our house, it’s character and our pets! Please pass on our thanks and comments as appropriate.


    We are delighted with the windows. As you know we were concerned that they would look different and more “clunky” but really you can’t tell the difference except that the new ones are not falling apart!!! The guys who did the fitting were also good. They were working in freezing fog, really cold but they carried on regardless, they were extremely tidy and cleared up after themselves.

    Roy Robinson

    I am delighted with the recent installation, it’s good to look out of clear windows. The work was carried out professionally by two excellent gentleman.
    I will not hesitate to contact you when I am ready to replace others, also would certainly recommend you to others.

    Grant Spicer

    Really impressed with the customer service and professionalism from everyone at Techniglaze. Especially liked the follow up call after our doors were fitted to make sure we were happy. Would definitely recommend.

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    Dr S Irving

    Excellent. This company really care about doing a great job. Roger and Keith have been very helpful and explaining things in detail that a lay person may not understand.

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    UK Chiropractic

    Excellent customer service, range of products and attention to detail. I honestly can’t rate them highly enough. They stepped in and came to the rescue after Salisbury glass cost us 8 months of time and 100k in increased material costs.

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    Elsa Marques

    These guys have been great to us. Helped us out at short notice after we were badly let down by another supplier. We asked for several minor details that were not standard (e.g. different locking mechanisms), and they were flexible and open to ideas. We ended up also commissioning our front door from them; it is super sturdy and beautiful. Always courteous, professional, and good payment terms.

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    Adam Barnes

    First class service for my window repair, with tricky access issues and a large, heavy glazed unit to install. Really glad I chose this company.

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    Jim McGarity

    I was looking for a company that could deliver a bespoke pair of roof lights in the Alitherm system. Techniglaze offered the best price and worked with us to ensure the sizes were exactly right and conducted the sales process very professionally. The product is first class and we are exceptionally pleased with the service and product. I can highly recommend Techniglaze.

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