Sash and Case Windows: The Traditional Look, Without the Draughts
Sash and case windows, sliding sash, vertical sliders: three names for the same window, and the one most Scottish homes were built with. Glasgow and Stirling are full of them: tenements, Victorian terraces, Edwardian villas and 1930s semis. Original timber sashes look right, but they rattle, stick, let the heat out and need painting every few years.
Near you: Sash windows in Glasgow → · Sash windows in Stirling →
Our VEKA vertical sliding sash windows keep everything that’s good about the original, the proportions, the glazing bars, the up-and-down action, and lose everything that isn’t. No draughts, no rot, no painting, and A-rated double glazing behind a frame that looks the part from the street.
Fitted by our own installers across Glasgow, Stirling and Scotland.
The traditional look, without the draughts
Authentic looks
Deep bottom rail, run-through sash horns, slim meeting rail and optional Georgian or astragal bars. From the pavement, most people can’t tell them from timber.
Both sashes slide and tilt
Open top and bottom for proper ventilation, then tilt both sashes inwards to clean the outside glass from inside, no ladders, no window cleaner.
Weathertight
Independently tested to Class 4 air permeability and Class 7A water tightness, with a bottom gasket and brush seals on every sliding edge, no more rattling in a westerly.
No maintenance
Original sashes need repainting every few years and re-cording when they stick. uPVC needs neither.
Warm and quiet
Multi-chambered VEKA frames with U-values as low as 1.2 W/m²K double glazed, A-rated available, and acoustic glazing for main-road tenements and flats.
Secure by design
Multi-point locking, restrictors so the window can be locked slightly open, and PAS 24 approved for enhanced security.
Welded or mechanically jointed: your choice
Every sash window we fit is the VEKA Imagine Vertical Slider, and we offer it two ways:
Standard welded corners. The frame and sashes are fusion-welded at the corners and the joint is cleaned off smooth. It’s strong, weathertight and the most cost-effective option, and from the street, most people won’t notice the difference.
Mechanically jointed. The corners are cut square and joined with concealed fixings, exactly as a joiner would make a timber sash. From close up, inside and out, the window reads as timber. This is the option for conservation areas, listed buildings and anyone who wants the most authentic finish. Run-through sash horns and deep bottom rails are mechanically jointed as standard, because they can’t be welded.
Not sure which you need? Both showrooms have welded and mechanically jointed corner samples on display, so you can see and feel the difference before you decide.
Built for Scottish period homes
Sash windows are where getting the details right matters most. We fit the VEKA Imagine Vertical Slider, specified for use in conservation areas and listed buildings, and we’ll match:
- Sash horns: run-through, clip-in, or none at all for a cleaner modern look
- Glazing bars: sculptured Georgian bars or astragal bars to replicate six-over-six, two-over-two and other traditional patterns
- Deep bottom rail: 105mm, the correct proportion for older properties
- Slim sightlines: a 50mm upper sash and 64mm lower sash, so you get more glass and more light than most uPVC sashes
- Three cill options: 85mm stub cill for a minimal look or where there’s an existing stone cill, 150mm standard cill for most homes, and a 225mm large cill for a deeper, more traditional projection, to suit the existing stonework
- Heritage hardware: cam locks, sash eyes, knobs and pulls in a choice of eight finishes
- Heritage colours: off-whites, creams, sage and dark greens, plus woodgrain foils in oak, rosewood and painted-timber effects
- Any shape or size: including arched-head sashes and the tall, narrow openings common in tenements; sashes up to 1400mm wide by 2450mm high
- Bays: bay pole and coupling options for bay windows, which many Glasgow sash houses have
For flats, we’re used to working with factors and joint-owner arrangements, and can quote for individual flats or whole closes.
Colours and finishes
White remains the classic choice, but sash windows suit heritage shades particularly well.
Glazing options
A-rated double glazing comes as standard. Add any of these to suit the room, the road outside or building regulations.
Double glazing
A-rated, argon filled, low-E glass
Acoustic glazing
Laminated acoustic glass for main roads and city-centre flats
Integrated blinds
Sealed inside the double glazed unit, never need cleaning (double glazing only)
Obscure glass
For bathrooms and stairwells
Safety glass
Toughened or laminated where building regulations require it
Trickle vents
Optional, recommended for background ventilation
Not sure which glass?
Read our glazing guide →
What do sash windows cost in Scotland?
Sash windows cost more than casements of the same size because of the sliding mechanism and the extra detailing. Price depends on size, colour, glazing bars, glass spec and whether you’re replacing one window or a whole flat.
Sash windows start from £825 per window, fully fitted, including VAT. We give you one fair, fixed price after a free home survey. No countdown discounts, no pressure.
Conservation areas and listed buildings
Many parts of Glasgow (the West End, Dennistoun, Pollokshields, parts of the Southside) and Stirling (the Old Town, Bridge of Allan) are conservation areas. Replacing windows there usually needs planning consent, and the council will want the new windows to match the originals in style and proportion.
uPVC sash windows are accepted in many conservation areas provided the detailing is right, but rules vary by council and by street. Listed buildings are stricter. If you’re unsure, we’ll advise on what’s likely to be accepted before you commit to anything.
No appointment needed
Sash windows on display, along with welded and mechanically jointed corner samples so you can compare the two. No appointment needed.
Glasgow Showroom
34 Houston Street, Kinning Park, Glasgow G5 8RS
0141 378 6400 · info@nu-view.co.uk
Mon, Tue, Thu 9am to 4:30pm · Fri 9am to 3:30pm · Closed Wednesday and weekends
Glasgow showroom →Stirling Showroom
Block 4, Unit 6, 20 Munro Road, Springkerse, Stirling FK7 7UU
01786 437 209 · info@nu-view.co.uk
Mon to Thu 9am to 4:30pm · Fri 9am to 3:30pm · Closed weekends
Stirling showroom →Take a closer look at home
Browse the full range, colours and options at your own pace – then come and see it for real in our Glasgow or Stirling showroom.
Your questions answered
Do uPVC sash windows look like timber ones?
From the street, yes, provided the proportions, horns and bars are done properly. Bring a photo of your existing windows to the showroom and we’ll show you how close we can get.
Can I replace sash windows in a tenement flat?
Yes. Tenement windows are tall and narrow, and we make every window to measure. If the building is in a conservation area, you may need consent, we’ll advise.
Will the windows still slide up and down?
Yes. Both sashes slide vertically on spring balances, replacing the old weights and pulleys, and both tilt inwards for cleaning.
What’s the difference between welded and mechanically jointed sash windows?
Welded corners are fused and cleaned off smooth; mechanically jointed corners are cut square and fixed like timber joinery. Both are equally strong and weathertight. Mechanically jointed costs a little more and is the choice for conservation areas and anyone wanting the most authentic timber look. Corner samples of both are in the showroom.
Are sash windows draughty?
Original timber ones usually are. A modern uPVC sash has brush seals on every sliding edge, so it performs like any other A-rated window.
Can you fit sash windows on the upper floors of a tenement?
Yes, it’s the majority of our sash work in Glasgow. Our own team handles access and makes good internally.
Can you reduce traffic noise?
Yes. Standard double glazing typically cuts outside noise by 30–35 dB. Our acoustic glazing typically achieves 40–45 dB, and because every 10 dB is roughly a halving of perceived noise, that’s the difference between hearing every passing car and barely noticing the road. If noise is your main concern, we’d suggest leaving trickle vents off those windows.
Why do windows get condensation, and will new windows stop it?
Condensation forms when warm, moist air inside the house meets a cold surface. Cooking, showers, drying washing and even breathing put litres of water into the air every day, and old single or early double glazing is usually the coldest surface in the room, so that’s where it collects. New A-rated windows are much warmer on the inside, so condensation drops dramatically, but it can still appear, especially in the first winter. That’s because new windows are far more airtight than the ones they replace, so the moisture that used to escape through the gaps now stays in the house. The fix is ventilation, not the windows: use extractor fans, open trickle vents, and air rooms briefly each day. One more thing that catches people out: condensation on the outside of new glass on cold mornings is a good sign. It means the low-E coating is keeping heat inside so the outer pane stays cold, and it clears as the day warms. Condensation between the panes, on the other hand, means the sealed unit has failed and is covered under guarantee.
Do you fit sash windows outside Glasgow and Stirling?
Yes, across Scotland including Falkirk, Lanarkshire, Dunbartonshire, Renfrewshire and Perthshire.
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