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 Kilbarchan
Quality Energy Efficient Double Glazed Windows & Doors




Felt a temperature change in your house? Energy costs on the up? Or condensation appearing on or inside your windows in the morning?
That familiar feeling? It’s your windows telling you they need attention.
Windows don’t last forever, and older ones drop theirs over time.
The gas between the panes slowly leaks, the rubber gaskets stiffen and pull back, and what used to held the cold out now scarcely makes any difference.
Living in Kilbarchan, you know that rain and wind can beat the sunny days, and ageing windows make a real difference to how warm and comfortable your home feels.
Not to worry. The Advanced Group has over 38 years of trusted experience. Single room or full house, replacement windows or doors, we’ll find the right fit and install everything right.

Cracked glass? Rotten timber frames? Handles that don’t fasten properly? Some issues are easy to spot.
Some signs slip under the radar though, and by the time you spot them, they’ve been steadily costing you money for months or even years.

Moisture or fogging between the two sheets of glass? The sealed unit has gone.
Once that seal goes, the argon gas that delivers insulation seeps out, and your window loses a big amount of its thermal performance.
Don’t keep pouring money away on climbing heating bills. Restore your home’s thermal performance with well sealed new windows.

Place your hand near the window edges on a windy day. Cold air coming through? The seals have deteriorated.
Draught proofing strips? They’re a quick fix. The issue only deteriorates as the rubber keeps break down.

If your windows stick, won’t fasten properly, or are tough to open, this creates both a security risk and an insulation issue. Warped frames, worn hinges, and failed mechanisms are all signals that the window has come to the end of its useful life.
Multi-point locking systems on modern windows are far more secure than the single-point catches on older frames, and options like toughened glass provide additional security.
A significant share of heat loss in any property occurs through the windows. They form the boundary between your internal space and the outside world.
Older double glazing is a thing of the past, and the energy ratings will be far below what’s available now, even if they were a decent specification when they were first put in.
Guard your house from expensive energy costs. New double glazed windows and doors create the difference.

No two Kilbarchan houses are the same, and the best window choice hinges on the building, the room, and how you live in it.
The Advanced Group supplies and fits a complete range of windows and doors in double glazed and triple glazed configurations, including uPVC casement, sash, tilt and turn, and top hung styles.

The casement window takes the crown of the UK’s most popular type. Side-hinged and opening outwards, they’re great for ventilation and a breeze to clean from inside.
They complement most styles of property, from modern builds to traditional properties, and are available in a wide choice of colours and finishes. Woodgrain effects recreate the look of timber without the maintenance or risk of warping.

The sliding sash windows we fit mirror the appearance of original wooden sash frames, while offering modern thermal performance and safety.
The proportions, sight lines, and opening mechanism all match the traditional look, which is brilliant if your property’s in a conservation area or you just want to hold onto its personality.

Tilt and turn windows tilt inward at the top for safe ventilation, and turn completely inward on a side hinge for easy cleaning.
Upper-floor flat? Cleaning outside glass from a ladder isn’t an option. Tilt and turn windows solve that challenge straight away.
The tilt feature provides airflow without security concerns. Especially valuable for families with young children.
Hinged at the top, opening outward from the bottom. Smart for ventilation and effective at keeping rain out.
Frequently used in bathrooms, kitchens, stairwells, and bay window configurations. Any space where privacy and airflow both matter.

French windows are full-length windows that open outward, working in the same way as French doors.
They’re ideal in pairs and can be combined with sidelights to open up a wide opening with glass and natural light.
There are sound reasons why The Advanced Group specialises in uPVC frame materials.
Scottish weather can be rough, but uPVC withstands it all! It’s long-lasting, stands up to wind, rain, and the roughest of it, and you won’t get the warping or rot issues that timber frames bring.
Not only that, but uPVC is low maintenance.
Soapy water and a quick wipe down. That’s all it needs to keep uPVC looking brand new.
Energy efficiency is where our uPVC windows genuinely stand out. Multi-chambered uPVC engineering, U-values as low as 0.8 W/m2K on some frames, and a proper difference to the energy efficiency of your home.
And you want to hear the best news? uPVC double glazing is also the most affordable option available!
That means you can often opt for premium-grade glazing without breaking the budget. We also carry glazed uPVC doors, including uPVC doors, composite doors, and patio doors to complement.
Cold, wet, and windy. That’s Scotland for a large part of the year.
In that environment, the energy performance of your windows makes a noticeable difference to how much you pay on heating and how pleasant your home feels day to day.
A window’s thermal performance is measured by what’s known as its U-value.
The lower that value goes, the less heat escapes. Scottish building regulations cap the maximum at 1.6 W/m2K for replacement windows at present.
Our standard double glazed windows attain a U-value of 1.2 W/m2K, while our premium range can achieve values as low as 0.8 W/m2K, working at twice the standard of the regulatory minimum.
The difference is reflected on your energy bills.
Argon gas filled sealed units and low-E glass coatings perform the real work in A-rated energy-efficient windows and doors. Heat gets reflected back in. Light still gets through.
If you’re swapping out old single-glazed sash windows or early double glazing, you could see a clear drop in your heating costs within the first winter.
Many double glazing companies in Kilbarchan provide basic products, but few can compete with the quality of the windows and doors we install.

Our trusted installers often get asked about our triple glazing products.
Triple glazing has an extra pane of glass, helping it to offer improved insulation and reduced noise control.
If your property is located in an exposed area, up a hill, facing north, or near a busy road or under a flight path, give us a shout! The Advanced Group would be more than pleased to guide you through the upsides of triple glazing.

We understand that new windows are an big purchase, and paying for them all at once isn’t always realistic.
That’s why we offer 0% APR and up to 4 years of interest free credit, making the process much more manageable!
It means you can get the windows you deserve by helping you spread the cost of your new windows and doors in a way that fits for you.
38 Years and Still Going Strong
We’ve been installing double glazing across Scotland since 1988!
38 years of learning what works. Growing supplier relationships. Training fitters who take genuine pride in each job. Our experience shows on every installation we finish.
A Complete 15-Year Guarantee
15-year guarantee on every installation. Product and workmanship covered.
Our guarantee goes above the competition. We’re fully confident in our windows and our installers.
If anything goes wrong, you can rely on us to sort it straight.

As Scotland’s premier provider of energy-efficient double glazing products, we carry an unmatched range of styles, frames, colours, and finishes.
Visit our showroom. We’ll talk you through the full collection in person.
Want new windows or doors in your Kilbarchan home? The Advanced Group is here to help.
We’ll arrange a home survey when it suits you. Measure up. Go through your options. Give a written quote. No obligation. No pressure.
Want to see the collection in person first? You’re welcome to visit our showroom.
Your free quote or home survey is just a phone call away. Contact our helpful team today.
Get a Quote
It only takes 30 seconds!
By clicking ‘Send Now’ I consent to the Advanced Group’s data policy and allow them to contact me with the information provided above.












