Glasgow uPVC Windows by Clyde Windows & Construction

Sash and Case Windows Glasgow

Traditional Proportions, Modern uPVC Performance

Vertical sliding sash windows for Glasgow tenements, villas and period homes, with authentic detailing and modern glazing.

Glasgow is home to countless period and traditional properties, from tenements to Victorian and Georgian villas, many sitting within conservation areas. Our uPVC sliding sash windows — also known as sash and case windows — recreate the classic vertical sliding sash look while delivering the energy efficiency, security, and low maintenance of modern uPVC.

Whether you're restoring a traditional timber sash window or replacing an ageing single-glazed window, our sash windows in Glasgow are designed to look every bit as authentic as the original, without sacrificing modern performance.

Why Homeowners Across Glasgow Choose Sash and Case Windows

Homeowners who want the proportions of a traditional sash window without timber upkeep can choose our uPVC range. If a simpler outward-opening style suits the property better, compare our casement windows.

Benefits of Sash and Case Windows

  • Modern double-glazed units and sealed uPVC frames that can reduce heat loss compared with ageing single-glazed windows
  • Integrated seals that help manage draughts, with performance depending on the complete specification and installation
  • Low maintenance, low-maintenance uPVC construction — no rot, no repainting, and none of the upkeep a timber sash window demands
  • Smooth, weighted sash lifts, cam locks, brush seals and a balanced sliding sash window system for easy, everyday operation
  • Locks, restrictors and safety features selected to suit the window and room
  • Good ventilation, with some vertical sliding sash windows also available with a tilt function for easy cleaning

Authentic Period Details

We replicate the appearance of traditional timber sash windows down to the detail — sash horns, pole eyes, a deep bottom rail, and optional astragal bars for a Georgian or traditional window style, all finished with traditional detailing that suits Glasgow's traditional architecture. Colours range from classic white, including white woodgrain effects, through to fully customisable finishes if you want the appearance of traditional timber frames without the upkeep. Our window experts can talk you through every option, whichever sash and case windows in Glasgow suit your home best.

uPVC sliding sash windows on a sandstone Glasgow tenement

Built for Glasgow's Period Properties and Modern Homes

Our sliding sash windows suit period streetscapes and newer homes whose design calls for vertical proportions. They can replace ageing timber windows or be specified for a new opening, combining the sash and case appearance with low-maintenance uPVC and modern glazing.

How We Fit Your Sash and Case Windows in Glasgow

1

Free Quote

Get in touch for a free, no-obligation quote on your new sliding sash windows.

2

Home Survey

We'll arrange a survey to confirm exact measurements and sliding sash windows options.

3

Manufacture

Your sliding sash windows are manufactured to your exact specification.

4

Installation

Our team fits your new sliding sash windows quickly and cleanly.

Loved by Homeowners Across Glasgow

I contacted Clyde via a recommendation from a friend and was so glad I did! A fantastic experience from start to finish; from Michael who did our initial visit through to Shug and James who carried out the fitting and ev…
Maureen Swanston
I am absolutely delighted that I chose Clyde Windows for my new windows and doors. The whole process from start to finish was amazing. From the initial visit and quote through to the survey and installation, everything w…
Matt Webb
The workmanship made the experience worth while, Tam and Alex were the best men to have doing my windows. The weather was a challenge in this heat i don't know how they coped but they did it to the highest spec. Can't th…
Michelle Mcdonagh
Well organised professional family business who provide a first class service building quality home improvements, extensions, garage conversions, conservatories and windows. Highly recommend.
William Kinghorn
Totally delighted with my new windows fitted by Clyde Windows and Construction . Right from my first appointment with Gordon, everything was explained fully and was given all information required up til final fitting. To…
Evelyn Henderson
Excellent from start to finish no pushy sales technics and the fitters were superb with the 2 doors fitted perfectly I will be using them again as there will be more work to be done later down the line.
Christopher
From initial enquiry to the job being completed it has been a great experience with Clyde Windows. Great advice in selecting our doors, clear and good value pricing. Communications spot on at all times. Alan and Tom, our…
Gordon Bryson
Our experience with Clyde Windows was exceptional from start to finish. We had a whole house needing double glazing, and the process from ordering and measuring through to installation was fantastic. I was most apprehens…
Heather Weir
Fantastic company, used previously for windows and again for new door from first initial meeting with Owen, dealing with the admin staff and the finally to the fitters James and Shug arrived on time, they went above and…
Gail

Sash and Case Windows FAQs

Will uPVC sliding sash windows suit a period property? +

Yes — our sash and case windows are designed to replicate the traditional vertical sliding sash look, including sash horns and a deep bottom rail, while giving you modern uPVC performance.

Do sliding sash windows still open the traditional way? +

Yes, they slide vertically like a traditional timber sash window, and some styles include a tilt function for easier cleaning.

Are uPVC sash windows more energy efficient than timber? +

A new double-glazed uPVC sash window will usually perform differently from an ageing single-glazed timber window, but timber and uPVC systems vary. Compare the whole-window specification rather than the frame material alone.

Interested in Sliding Sash Windows?

Get in touch today for a free, no-obligation quote.

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