Get the new windows you deserve for expert energy saving from The Advanced Group.
The Advanced Group supplies and installs sliding sash windows throughout Edinburgh and the Lothians.
Every installation comes with a 15-year guarantee and 0% finance is available on approved credit.
Call 0131 370 0444 to arrange a free survey.
Traditional sash and case windows in Edinburgh: what homeowners deal with
Edinburgh’s stone-built tenements, Georgian terraces, and Victorian villas were built with sash and case windows that set a high standard for their era.
After a century or more of Scottish winters, the timber frames have shrunk and cracked, the putty has failed, the sash cords are either broken or stretched past the point of holding, and the gaps around the meeting rail let draughts in at floor level.
This lets the cold into your home causing draughts. With the unpredictable energy prices, this affects your comfort and heating bills.
But it isn’t just heat loss and bills you have to worry about.
If you still have single glazing, noise transmission is higher. This can impact on your sleep, living, and lifestyle.
Whether your home has wooden sash and case windows or old double glazing that has begun to fail, we are here to update your living with innovative, energy efficient windows.

Why uPVC over timber sash and case windows in Edinburgh
Modern uPVC sash and case windows replicate the sliding sash mechanism, the proportions, and the period detail of traditional timber sash and case windows without all the hassle of maintenance.
The frames come perfect as they are and stay that way. uPVC doesn’t need any painting over the years when compared with wood.
But that isn’t all.
uPVC is more resistant to damage than wood, meaning it doesn’t require regular checking for faults.
And in Edinburgh’s wet and windy climate, it remains strong against the weather.
Our modern uPVC sash and case window profiles are built to match the period character of the traditional timber windows precisely.
With finishes that mimic the look and feel of wood, you can upgrade your windows whilst preserving the look of your property.
uPVC sash and case windows in Edinburgh’s many conservation areas
Edinburgh has more conservation areas than any other city in Scotland.
A high proportion of the central residential neighbourhoods fall within those designations, and sash and case windows are a character-defining feature in all of them.
Marchmont, Bruntsfield, Morningside, Newington, Gorgie, Dalry, Leith, Stockbridge, and Portobello all fall within designated conservation areas. The New Town is part of Edinburgh’s UNESCO World Heritage Site, with the strictest planning in the city.
The 2024 changes to Scottish planning rules changed the position for many Edinburgh homeowners significantly.
Prior notification for front elevation windows replaced the full planning permission requirement, and the material of the replacement window no longer always needs to match the original.
For Edinburgh conservation areas, our surveyors can confirm the planning position for your property during the free home survey.
We carry out sash and case window replacement throughout Edinburgh’s conservation areas regularly and can guide you through the prior notification process for your street and postcode if it applies.

Listed properties and Grade A listed buildings in Edinburgh
Edinburgh has a high concentration of listed buildings, particularly in the city centre and New Town.
Listed building consent is required separately from planning permission and applies regardless of conservation area status.
For Grade A listed properties in Edinburgh, the planning authority will typically require timber sash and case windows on primary elevations. uPVC is generally not approved for the external elevations of Grade A listed properties.
For Category B and C listed buildings in Edinburgh, the consent outcome depends on the specific property and the authority’s assessment.
We value upfront honesty at The Advanced Group. We won’t take up your time if our services aren’t possible.
Our surveyor will advise on realistic options at your free survey and confirm what consent will be needed before any window replacement is ordered.
Tilt mechanism and uPVC sash and case window design for Edinburgh properties
Easy cleaning from inside
Our uPVC sash and case windows include a tilt facility that allows both sashes to tilt inward for easy cleaning from inside the property.
For Edinburgh tenement flats on upper floors, this matters practically.
This allows you to clean the outside of the glass without a ladder or scaffolding.
Traditional sash and case windows provide no equivalent access. Our innovative tilt mechanism leads to an easy clean, without any equipment.
Double glazed and triple glazed specifications
We supply double glazed sash and case windows as standard, with triple glazing available for properties where maximum insulation or noise reduction is the priority.
For tenement flats on busy Edinburgh roads, triple glazing is the one to beat.
We work out your priorities and price point to guide you to the upgrade that suits your home.

Period detail and ventilation
Your windows need detail, it’s what gives your home character.
If you want to retain elements from your tradition window like sash horns, bow handles, heritage locks, ring pulls, or more, we can help!
All our windows come with trickle vents to allow for controlled background ventilation.
The window design for each opening is carefully measured from the survey and manufactured to precisely fit the existing stone reveal.
We also have a variety of shapes available from classic Georgian to swept head and true arch. To ensure you find the perfect window for your property.
Casement windows for later Edinburgh properties
Sash window style not for you? The Advanced Group also supplies and installs double glazed casement windows as a fantastic alternative.
For Edinburgh homeowners who want a modern window alternative to timber, our uPVC range covers all configurations.
Our casement windows are available in the same finish colours and glazing specifications as our sash and case range.
Energy efficiency and grants for Edinburgh sash and case windows
New double glazed sash and case windows from our Advanced 70+ system can achieve U-values as low as 0.8 W/m²K.
For reference, the Scottish Building Standards require a maximum U-value of 1.4 W/m²K for replacement windows, and our system runs at nearly half that requirement!
This translates to incredible savings and new double glazed windows that improve your EPC rating.
For any property that is worried about the rising cost of energy bills, this is a great solution to help protect your home.
And if you are thinking about selling in the future? Improving your EPC rating is a fantastic way to make your home more attractive to prospective buyers.
Replacement sash and case windows: how the installation works
Buying new double-glazed windows has never been easier with The Advanced Group.
Here is exactly what you can expect when you choose our team for your home improvements.
- Call 0131 370 0444, complete our online form to book a free home survey, or come and visit our showroom! Our surveyor visits your Edinburgh property, measures every window opening, checks the stone reveals and sills, and confirms the planning position for your address before anything is committed to.
- You receive a clear, itemised written quote for the new sash and case windows, covering glazing specification, finish colour, and all installation costs. 0% finance is available on approved credit if you’d prefer to spread the cost.
- Your new sash and case windows are manufactured to the exact measurements from the survey. Every window is manufactured to the exact dimensions of its individual stone opening.
- Our installation team carries out the work in a single visit for most Edinburgh properties. The existing windows are removed carefully, the reveals are prepared, and the new sash and case windows are fitted and sealed. Every workman on our team is employed directly by The Advanced Group and cares about the task they do.
- Once the team has completed the job, old frames are removed and the property is left clean and covered by a 15-year guarantee for complete peace of mind.
Why choose The Advanced Group for Edinburgh sash windows
We have been supplying and installing windows throughout Scotland since 1988.
With decades in the industry, we know exactly what to look for when supplying windows to our valued customers. We also know how to fit them precisely for ultimate draught proofed windows.
The window manufacturers we work with supply frames to our specification, and every element of the installation (survey, manufacture, fitting, and aftercare) is handled by our own team.
But don’t just take our word for it! Listen to the voices of our many happy customers.
With over 500 Trustpilot reviews with a 9.6 score, our team specialise in workmanship quality and clear communication cited consistently throughout.
Every installation on our excellent uPVC windows and doors comes with a 15-year guarantee covering frames, sealed glazing units, and workmanship.
Areas we cover for sash and case windows across Edinburgh and the Lothians
We install replacement windows throughout Edinburgh city and help homes looking to upgrade with our window services.
But our reach doesn’t end there!
We also cover the Lothians: East Lothian, Midlothian, and West Lothian throughout. Musselburgh, Dalkeith, Livingston, Linlithgow, Haddington, North Berwick, and Dunbar are all within our service area for new sash and case windows.
Call 0131 370 0444 to confirm we cover your postcode before booking a survey. We can usually arrange a survey within a few days of your first call.
Book a free sash and case window survey in Edinburgh
Upgrade your home by getting new windows from The Advanced Group.
Our surveyor will visit your Edinburgh property, measures each window opening, confirms the planning position for your address, and gives you a clear written quote covering glazing specification, finish colour, and all installation costs.
Call 0131 370 0444 or complete our online enquiry form to arrange a free, no-obligation survey.
