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 Giffnock
Quality Energy Efficient Double Glazed Windows & Doors




A drop in temperature throughout the home. Increasing energy bills. Condensation sitting on or inside the windows each morning. Ring any bells?
If that matches your situation, your windows are sending you a message.
Old windows drop their seal over time.
Between the panes, the gas leaks. The rubber gaskets harden and shrink. What once held the cold back now hardly does a thing.
Living in Giffnock, you get that rain and wind sometimes beat the sunny days, and tired windows make a noticeable difference to how warm and comfortable your home feels.
Not to worry. The Advanced Group offers over 38 years of trusted expertise. Single room or full house, replacement windows or doors, we’ll find the right solution and fit everything correctly.

Cracked glass? Rotten timber frames? Handles that don’t lock right? Some problems are hard to miss.
Other signs are trickier to notice. By the time you do, they’ve been losing you money for months or years.

If you can notice moisture or fogging between the two sheets of glass, the sealed unit has given way.
Once that seal fails, the argon gas that gives insulation escapes out, and your window loses a huge amount of its thermal performance.
Don’t throw money away with rising heating costs and make sure to restore your home’s thermal efficiency with properly sealed new windows.

Put your hand near the window edges on a windy day. Cold air getting through? The seals have deteriorated.
Draught proofing strips can help temporarily, but they’re a sticking plaster on a fault that will only deteriorate as the rubber continues to break down.

Seizing windows that won’t fasten right aren’t just inconvenient, they’re a security risk and an insulation issue too. Warped frames, worn hinges, and failed mechanisms all suggest a window that’s hit the end of its useful life.
The single-point catches on older windows can’t match up with the multi-point locking systems on modern windows. Factor in toughened glass, and your home gains a real safety boost.
A large share of heat loss in any home occurs through the windows. They represent the barrier between your indoor space and the outside elements.
Double glazing from years ago is old news, and the energy ratings will be far below what’s on offer today, even if the specification was good when first fitted.
New double glazed windows and doors will protect your house from high energy costs.

Giffnock homes vary across all shapes and sizes, and the right window type depends on your property, the room, and how you live in it.
The Advanced Group provides and installs a full selection of windows and doors in both double glazed and triple glazed options, including uPVC triple and double and triple glazed casement, sash, tilt and turn, and top hung types.

Quite likely the most widely chosen window type in the UK, casement windows are side-hinged and open outwards, which makes them ideal for ventilation and easy to clean from inside.
Casement windows complement just about any property style, whether it’s a modern build or a traditional house! They come in a big range of colours and finishes, and the woodgrain effects look just like real timber without the maintenance or warping fear.

Our sliding sash windows mirror the look of original wooden sash frames while offering modern thermal efficiency and security.
Proportions, sight lines, and opening mechanism all mirror the traditional style. Great for conservation areas or maintaining your property’s character.

These windows tilt inward at the top for secure ventilation and turn fully inward on a side hinge for simple cleaning.
They’re especially popular in upper-floor flats, where getting up a ladder to clean the outside of the glass is not realistic.
The tilt mode allows airflow without the security risks associated with a fully open window, which is especially helpful for families with young children.
Hinged at the top, opening outward from the bottom. Smart for ventilation and good at keeping rain out.
Commonly used in bathrooms, kitchens, stairwells, and bay window configurations. Every space where privacy and airflow both are important.

French windows function just like French doors but are full-length windows that open outward.
Pair them up and match them with sidelights, and you can flood a wide opening with glass and natural light. The effect is beautiful.
The Advanced Group concentrates in uPVC frame materials, and for very good reasons!
Scottish weather throws all sorts at your windows. uPVC is made to take it, tough, resilient to harsh, windy, wet weather, and free from the warping or rot issues that affect timber frames.
Not only that, but uPVC is low maintenance.
Wipe it down with soapy water. Done. Looks as good as new.
But more significantly, our uPVC windows are extremely energy effective. Engineered with multi-chambered uPVC, some of our frames can achieve a U-value as low as 0.8 W/m2K, working to recover energy performance to your house.
And the better news? uPVC double glazing is the most budget-friendly option available.
Higher-spec glazing without exceeding the budget? That’s what uPVC offers. We also stock glazed uPVC doors, including uPVC doors, composite doors, and patio doors to go with.
Let’s be real, Scotland is cold, wet, and windy for a good chunk of the year!
In such a weather pattern, the energy performance of your windows has a noticeable influence on your heating bills and the overall warmth of your home on a daily basis.
Familiar with U-values? That’s how the thermal efficiency of any window is measured.
The lower that value goes, the less heat escapes. Scottish building regulations set the maximum at 1.6 W/m2K for replacement windows right now.
Our standard double glazed windows come in 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 operating at twice the level of the regulatory minimum.
You’ll spot the difference on your energy costs.
Argon gas filled sealed units and low-E glass coatings perform the hard work in A-rated energy-efficient windows and doors. Heat gets pushed back in. Light still flows through.
If you’re switching from old single-glazed sash windows or early double glazing from the 1990s, you could see a real drop in your heating spend within the first winter.
Giffnock has its share of double glazing firms, and most offer basic products. Few, though, match the quality of the windows and doors supplied by The Advanced Group.

Our experienced installers enjoy chatting about triple glazing, and it’s a topic that pops up a lot!
An extra pane of glass. Improved insulation. Better noise control. That’s triple glazing.
If your home 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 upsides of triple glazing.

New windows are an investment, and we appreciate that paying for them all at once isn’t always feasible.
That’s why we provide 0% APR and up to 4 years of interest free credit, making the whole thing much easier!
It means you can get the windows you want by helping you spread the cost of your new windows and doors in a way that fits for you.
38 Years and Counting
Installing double glazing across Scotland since 1988. That’s our history.
38 years teaches you a lot. What works. Which manufacturers to rely on. How to train fitters who take genuine pride in their work. And it comes through on every job we finish.
Covered by a 15-Year Guarantee
15-year guarantee on every installation. Product and workmanship included.
The reason our guarantee surpasses that of our rivals is our complete certainty in the calibre of our windows and the ability of our installers.
If anything goes wrong, you can trust us to fix it straight.

Scotland’s leading supplier of energy-efficient double glazing, that’s us. And the range of styles, frames, colours, and finishes we offer? Unrivalled.
You are encouraged to visit our showroom, where we will be more than glad to individually walk you through our entire selection.
If you are planning installing new windows or doors in your Giffnock property, The Advanced Group would be more than pleased to assist.
Whatever your window and door requirements, we’ll set up a home survey at a time that suits you, measure up, talk through your possibilities, and give you a written quote with no obligation and no pressure.
If you’d like to see our collection of windows and doors in person before deciding, you’re welcome to visit our showroom.
To request your free quote or home survey, please reach out to a member of our helpful team today.
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