The sliding sash window has been part of Glasgow’s architectural character for more than 200 years.
Replacing old sash windows in a period property often feels like it has to mean timber, with all the painting and joinery work that follows. It doesn’t.
uPVC sash windows replicate the traditional sash and case design exactly.
The vertical sliding mechanism and the street-facing profile match the original, and from the pavement, a well-installed uPVC sash window is indistinguishable from a timber original in good condition.
Inside the property, it performs considerably better on thermal insulation, noise reduction, security, and long-term running costs.
For innovative uPVC sliding sash windows across Glasgow and Central Scotland, speak to The Advanced Group today for your free quote and survey.
How uPVC sash and case windows work
A sash and case window uses a vertical sliding mechanism rather than the outward-opening hinge of a casement window.
Two independently sliding panels move up and down within the outer frame.
Traditional timber sash and case windows use lead weights inside the case walls to counterbalance the sashes.
The weights connect to each sash via cords running over pulleys at the top of the frame.
Modern uPVC sash windows replace that weight-and-cord system with spiral balance mechanisms built into the side channels of the frame.
The sash opens with light pressure and holds at any height for smooth operation, and the box sash weight chambers that traditional timber frames need are replaced by slim mechanisms within the uPVC profile.
The frames are multi-chambered for structural strength and thermal insulation.
For double glazing from window experts, contact The Advanced Group today.
Why Glasgow homeowners choose uPVC over timber sash windows
Timber sash windows require regular upkeep.
The painted finish needs stripping and reapplying every few years, the timber rots at the bottom rails and sills where water collects, and the cords snap and leave the sash dropped.
Glasgow is one of the wettest cities in the UK, which means wooden windows need constant upkeep so they remain functional.
uPVC doesn’t rot or warp in damp conditions, and the frames need no painting.
The spiral balances are sealed within the frame and maintenance-free.
Low maintenance is the most common reason Glasgow homeowners replace old sash windows with modern uPVC.
Upgrading to new uPVC is a substantial thermal improvement for your property.
Our new double glazed uPVC sash windows reach U-values as low as 1.2 W/m²K with the Advanced 70+ system, and heat loss through the glass drops substantially. Or for even better protection, our triple glazing can reduce the U-value to just 0.8 W/m²K
This helps your energy bills drop during the Scottish winter, protecting your home from rising heat costs.
Our uPVC sash windows include multi-point locking as standard.
The sash engages at multiple points along the frame simultaneously, so forced entry is significantly harder than with the single-catch hardware on most original windows.
uPVC sash window styling for period properties in Glasgow
uPVC window colours
Classic white is the standard finish and gives an authentic looking replacement for the painted timber sash windows found across Glasgow’s traditional housing.
But that isn’t the only finish we supply.
Woodgrain foil finishes in light oak, cherrywood, and Irish oak offer the classic charm of a traditional sash window without the maintenance timber brings.
They are perfect for properties where a classic style closer to natural wood is preferred or where the planning authority expects the replacement to match the original design.
Styles and shapes
Classic Georgian bar patterns, where glazing bars divide the pane into four or six lights, are available on all our uPVC sash windows. We also supply swept head and true arch shapes.
Box sash proportions and glazing bar positions are measured precisely during the survey and matched to the existing stone reveal.
The replacement window sits correctly in the opening and the building’s street-facing appearance is preserved.
Finishing touches
Your window is part of your home. It deserves to feel charming.
We can add special touches such as decorative horns, heritage knobs and locks, bow handles, ring pulls, and more.
Give your new windows the character to match your living, with The Advanced Group.
Double or triple glazed sash windows
Our uPVC sash windows are available in double glazed and triple glazed specifications.
Double glazed sash windows deliver the full step-up in thermal performance and sound reduction over original single glazing.
But for properties on busy roads, exposed top-floor flats, or situations where noise reduction is the primary concern, triple glazing goes further on both counts.
Our window experts will guide you through which glazing is right for your home or property during your initial consultation.
How we install uPVC sash windows in Glasgow
Looking to get new sash windows? You are in the right place with The Advanced Group.
Here is exactly what to expect from our services.
- Call 0141 473 4141, or complete our online form to arrange a free home survey. Our surveyor visits, measures each window opening, checks the condition of the reveals and sills, and confirms the planning position for your property.
- We provide a clear written quote for your installation, with no obligation to proceed. 0% finance is available on approved credit if you’d prefer to spread the cost over an agreed term.
- Your new uPVC sash windows are manufactured to the exact measurements from the survey. Our installation team fits them in a single visit for most properties, removing the old frames before the new ones go in.
- Every installation is covered by a 15-year guarantee. We take the old frames away, sweep up, and leave you with new double glazed or triple glazed sash windows that need no maintenance from day one.
Areas we cover for uPVC sash windows across Glasgow
We’re based in Glasgow and install uPVC sash windows Glasgow-wide, covering all G postcodes.
For sash and case windows, Glasgow properties need to be matched to stone reveals and period proportions. We survey, manufacture, and fit everything in-house.
In Glasgow, we work across the West End including Partick, Hyndland, and Hillhead, the South Side including Shawlands, Pollokshields, and Strathbungo, the East End including Dennistoun, Parkhead, and Shettleston, and the city centre.
We also cover Paisley, Motherwell, Hamilton, Rutherglen, Clydebank, Bearsden, Milngavie, and Newton Mearns, and extend across Lanarkshire and Renfrewshire.
Call us on 0141 473 4141, and we will confirm if we can help.
Why choose The Advanced Group for uPVC sash windows in Glasgow
We’ve been fitting new windows in Glasgow homes since 1988.
In that time, our teams have replaced sash windows in tenement flats, period villas, and conservation area properties across Central Scotland.
Over the 37 years in the industry, we’ve built an incredible reputation for our customer service.
Our Advanced 70+ uPVC window system achieves U-values of 0.8 W/m²K across our sash windows range.
But they don’t just help lower your home’s carbon footprint. We prioritise the environment in our production and supply too.
The uPVC material is 80% recycled or renewable as part of our recycling programme, and every installation comes with a 15-year guarantee covering both the frames and the sealed glazing units.
Talk to our team today to find out more ways you can benefit with new double-glazed windows by talking to our team.
uPVC sash windows Glasgow: your questions answered
Is there such a thing as uPVC sash windows?
Yes. uPVC sash windows have been manufactured and installed for over 30 years. The vertical sliding mechanism, the proportions, and decorative details including horns and glazing bars are all replicated in uPVC using moulded profiles designed to match the traditional timber original.
How much does a uPVC sash window cost?
The cost depends on the size, glazing specification (double or triple glazed), finish colour, and the number of windows you’re replacing. We give a clear written quote after a free home survey, with no obligation to proceed. 0% finance is available on approved credit. Call to arrange a free survey.
Book a free survey for uPVC sash windows in Glasgow
Energy saving modern windows from The Advanced Group.
Every installation comes with a 15-year guarantee and 0% finance is available on approved credit.
Call now on 0141 473 4141, or complete our online enquiry form to arrange a free, no-obligation home survey.
