We’ve installed thousands of windows over the last 34 years, take a look at what we have installed more recently.
Fitting Scotland Perfectly
New Windows Danestone
Quality Energy Efficient Double Glazed Windows & Doors




Perhaps you’ve picked up on a change in temperature in your house. Bills rising. Or condensation forming on or inside your windows in the morning.
If that describes your home, your windows are sending you a sign.
As windows wear, they lose their seal.
Gas seeps out from between the panes. The rubber gaskets go rigid and pull away. What once did stop the cold now barely makes a difference.
In a place like Danestone, where rain and wind are frequently more frequent than sunshine, tired windows have a clear impact on how warm and cosy your home feels.
The Advanced Group is here to help, with over 38 years of trusted service. Whether you want new windows for a single room or a full house of replacement windows and doors, we’ll guide you to the right solution and ensure everything is installed properly.

Some issues are straightforward, such as cracked glass, rotten timber frames, and handles that won’t fasten properly.
But then there are the sneakier signs. The ones you miss until they’ve already been draining you money for months, possibly years.

If you can notice moisture or fogging between the two sheets of glass, the sealed unit has given way.
Once that seal goes, the argon gas that provides insulation seeps out, and your window loses a big portion of its thermal efficiency.
Don’t waste money away with increasing heating bills and make sure to bring back your home’s thermal performance with perfectly sealed new windows.

Try putting your hand near the edges of your window on a windy day. If you can feel cold air coming through, the seals have broken down.
Draught proofing strips can help temporarily, but they’re a sticking plaster on a problem that will only worsen as the rubber goes on to break down.

Got windows that jam, won’t fasten right, or just refuse to cooperate? That’s a safety risk and an insulation issue combined. Warped frames, worn hinges, and failed mechanisms all show you the window has come to the end of its useful life.
Multi-point locking systems on newer windows deliver far stronger protection than the single-point catches used in older windows, and toughened glass choices add an further layer of protection.

Your windows are responsible for a considerable proportion of the heat loss in your property. They’re the link between you and the outside world.
Double glazing from the past is exactly that, in the past. The energy ratings fall far below today’s options, even if the original specification was decent when first installed.
Shield your house from high energy costs. New double glazed windows and doors create the difference.

Danestone houses vary across all forms, and the right window type depends on your property, the room, and how you use it.
The Advanced Group has a complete lineup of double glazed and triple glazed windows and doors in stock, including uPVC casement, sash, tilt and turn, and top hung designs, all supplied and installed by our experts.

The most widely fitted window type in the UK. Side-hinged, opening outwards. Ideal for ventilation and easy to clean from inside.
Modern home or traditional villa, casement windows work with the lot. A wide range of colours and finishes is available, and the woodgrain effects capture the look of timber without any of the maintenance or warping fear.
The sliding sash windows we supply recreate the style of original wooden sash frames, while offering modern thermal performance and security.
The proportions, sight lines, and opening mechanism all mirror the traditional design, which is brilliant if your property’s in a conservation area or you just want to hold onto its character.

Tilt inward at the top for protected ventilation. Turn completely inward on a side hinge for quick cleaning.
For residents in upper-floor flats, tilt and turn windows are a practical choice, as cleaning the outside of the glass from a ladder is not practical.
The tilt mode lets air in without the safety risks of having the window wide open, which is especially useful if you’ve got young children.

Hinged at the top, opening outward from the bottom. Smart for ventilation and great at keeping rain out.
You’ll see top hung windows in bathrooms, kitchens, stairwells, and bay window setups, essentially anywhere that privacy and airflow are both a priority.

Full-length windows that open outward like French doors. That’s exactly what French windows offer.
In pairs, they work brilliant, and you can combine them with sidelights to fill a wide opening with glass and loads of natural light.

The Advanced Group concentrates in uPVC frame materials, and for really good reasons!
Scottish weather sends the lot at your windows. uPVC is made to take it, durable, resistant to wild, windy, wet weather, and free from the warping or rot worries that affect timber frames.
Low maintenance is baked in as standard with uPVC.
Just a quick wipe with soapy water and it looks good as new!
But more importantly, our uPVC windows are very energy effective. Designed with multi-chambered uPVC, some of our frames can hit a U-value as low as 0.8 W/m2K, helping recover energy efficiency to your home.
And better of all? uPVC double glazing is also the most cost-effective option.
So you can often fit higher-specification glazing and still keep within budget. We provide glazed uPVC doors too, including uPVC doors, composite doors, and patio doors to coordinate.
For a significant portion of the year, Scotland’s weather is cold, wet, and windy.
That weather means the energy efficiency of your windows counts. It shapes how much you shell out on heating and how cosy your property feels from one day to the next.
The thermal performance of a window is determined by its U-value.
A lower U-value indicates less heat getting out through the glass and frame. Scottish building regulations currently require a maximum U-value of 1.6 W/m2K for replacement windows.
Our standard double glazed windows sit at 1.2 W/m2K, and the premium range can achieve as low as 0.8 W/m2K. That’s double glazing and triple glazing working at twice the level of the regulatory minimum.
And where does that difference appear? Straight on your energy bills!
A-rated energy-efficient windows and doors with argon gas filled sealed units and low-E glass coatings bounce heat back into the room while still allowing light through.
If you are upgrading from old single-glazed sash windows or early double glazing from the 1990s, you may experience a significant decrease in your heating costs within the first winter.
A number of double glazing companies in Danestone sell basic products, but not many can match the standard of the windows and doors we provide.
Our trusted installers are regularly asked about the triple glazing products we supply.
An extra pane of glass makes triple glazing apart. It translates to better insulation and better noise dampening beyond standard double glazing.
If your house is in an exposed spot, up a hill, facing north, or near a busy road or flight path, The Advanced Group is more than happy to talk you through the advantages of triple glazing.

New windows are an big spend, and we know that paying for them all at once isn’t always realistic.
To assist with this, we provide 0% APR and up to 4 years of interest free credit.
The windows you deserve, with the cost spread in a way that works for you. That’s what 0% finance makes.

Over 38 Years in the Industry
We’ve been installing double glazing across Scotland since 1988.
That’s 38 years of learning what lasts, building relationships with suppliers, and training window fitters who take real pride in their work. And our experience comes through on every job we deliver.
Protected by a 15-Year Guarantee
Every window installation we complete is backed by a 15-year guarantee, covering both the product and the workmanship.
Our guarantee sits above the industry standard. Why? Complete assurance in the calibre of our windows and the ability of our installers.
If anything comes up, you can rely on us to fix it right.

As Scotland’s leading provider of energy-efficient double glazing products, we provide an unrivalled choice of designs, frames, colours, and finishes.
Why not swing by our showroom? We’d be more than happy to personally show you through our full range!

Considering new windows or doors in your Danestone home? The Advanced Group is here to assist.
Whatever your window and door requirements might be, we’ll arrange a home survey at a time that works for you, take measurements, talk through your options, and provide a written quote with no obligation and no pressure.
If you’d like to see our collection of windows and doors in person before reaching a decision, pop into our showroom any time!
Contact our friendly team today. Free quote. Free home survey.
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