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 Kelso
Quality Energy Efficient Double Glazed Windows & Doors




Perhaps you’ve noticed a change in temperature in your property. Heating bills rising. Or condensation gathering on or inside your windows in the morning.
If that matches your home, your windows are giving you a sign.
Over time, older windows start to lose their seal.
The gas between the panes seeps away, the rubber gaskets harden and shrink, and what used to keep the cold out now barely holds it back.
In a city like Kelso, where rain and wind are frequently more regular than sunshine, ageing windows have a noticeable effect on how warm and comfortable your house feels.
Over 38 years in the business, and The Advanced Group is still here, available to support you. Whether it’s one room or the whole house that is due new windows and doors, we’ll find the right solution and have everything installed the right way.

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

Seeing moisture or fogging between your two sheets of glass tells you the sealed unit has failed.
The seal goes, and with it escapes the argon gas that provided the insulation. The window loses a major chunk of its thermal performance.
Quit wasting money away on rising heating bills. Bring back your home’s thermal efficiency with perfectly sealed new windows.

Place your hand near the edges of the window on a windy day. If you can feel cold air getting in, the seals have broken down.
Draught proofing strips can help in the short term, but they’re a sticking plaster on a fault that will only get worse as the rubber goes on to degrade.

Windows that stick, won’t fasten properly, or refuse to open are both a safety risk and an insulation problem. Warped frames, worn hinges, failed mechanisms. The window has reached the end of its functional life.
Multi-point locking systems far exceed the old single-point catches for protection. Toughened glass gives further security.

Your windows are where a considerable share of your home’s heat is lost. That thin bridge between you and the outside world matters more than most people think.
Double glazing from years ago is outdated, and the energy ratings will be well below what’s on offer today, even if the specification was good when first installed.
Protect your home from high energy bills with new double glazed windows and doors.

No two Kelso properties are the alike, and the ideal window choice depends on the property, the room, and how you live in it.
The Advanced Group has a wide selection of double glazed and triple glazed windows and doors in stock, including uPVC casement, sash, tilt and turn, and top hung types, all supplied and installed by our experts.
Possibly the most widely chosen window choice in the UK, casement windows are side-hinged and open outwards, which makes them ideal for ventilation and straightforward to clean from inside.
Modern build or traditional villa, casement windows suit the lot. A wide range of colours and finishes is on offer, and the woodgrain effects replicate the look of timber without any of the maintenance or warping risk.

Want the appearance of original wooden sash frames? Our sliding sash windows mirror that traditional look while packing in modern thermal performance and security.
The proportions, sight lines, and opening mechanism all match the traditional look, which is great if your property’s in a conservation area or you just want to hold onto its character.
Tilt and turn windows tilt inward at the top for protected ventilation, and turn completely inward on a side hinge for simple cleaning.
Upper-floor flat? Cleaning outside glass from a ladder isn’t feasible. Tilt and turn windows sort that issue easily.
The tilt feature is a genuine benefit! You get airflow without the security concerns of a fully open window, which is especially great if you’ve got young kids at home.
Top hung windows are hinged at the top and open outward from the bottom, offering a smart solution for ventilation that also helps to keep rain out.
You’ll often spot them in bathrooms, kitchens, stairwells, and bay window arrangements, places where both privacy and airflow count.

French windows are full-length panels that open outward, functioning in the same way as French doors.
They perform well in pairs and can be combined with sidelights to open up a wide opening with glass and natural light.

The Advanced Group specialises in uPVC frame materials for strong reasons.
Scotland’s weather won’t go easy on your windows, and uPVC is built to take it. It’s hardwearing, resistant to wild, windy, wet conditions, and unlike timber, it won’t warp the same way.
Not only that, but uPVC is low maintenance.
Soapy water and a quick wipe down. That’s all it needs to keep uPVC looking fresh.
And here’s the genuinely important part: our uPVC windows are seriously energy efficient! Designed with multi-chambered uPVC, some of our frames achieve a U-value as low as 0.8 W/m2K, which genuinely helps boost your home’s energy performance.
And you know the better part? uPVC double glazing is also the most affordable option available!
Higher-specification glazing without exceeding the budget? That’s what uPVC makes. We also carry glazed uPVC doors, including uPVC doors, composite doors, and patio doors to match.

Scotland’s weather is cold, wet, and windy for a good part of the year.
That weather means the energy performance of your windows makes a difference. It affects how much you pay on heating and how warm your home feels day to day.
The thermal performance of any window is measured by its U-value.
A lower U-value translates to less heat being lost through the glass and frame. Scottish building regulations currently set a maximum U-value of 1.6 W/m2K for replacement windows.
Our standard double glazed windows achieve 1.2 W/m2K, and our premium models can hit 0.8 W/m2K! That’s performance at twice the regulatory minimum!
The difference is reflected on your energy bills.
Argon gas filled sealed units and low-E glass coatings do the hard work in A-rated energy-efficient windows and doors. Heat gets bounced back in. Light still flows through.
If you’re upgrading from old single-glazed sash windows or early double glazing from the 1990s, you could see a properly noticeable drop in your heating costs within even the first winter!
Kelso has no shortage of double glazing companies. Few come close to the standard of our windows and doors.

Our trusted installers enjoy talking about triple glazing, and it’s a question that pops up regularly!
An extra pane of glass sets triple glazing apart. It means stronger insulation and improved noise dampening over standard double glazing.
Exposed location. Up a hill. Facing north. Near a busy road or under a flight path. If any of those fits like your property, The Advanced Group is here to walk you through the benefits of triple glazing.

New windows are an investment. Paying for the lot at once? Not always practical. We understand that.
So we offer 0% APR and up to 4 years of interest free credit. No fuss.
The windows you deserve, with the cost spread in a way that fits for you. That’s what 0% finance allows.

38 Years of Trusted Experience
Since 1988, we have been installing double glazing throughout Scotland.
38 years of learning what works. Growing supplier relationships. Training fitters who take genuine pride in each job. Our experience is visible on every project we finish.
Covered by a 15-Year Guarantee
A 15-year guarantee is included with every window installation, protecting both the product and the workmanship.
The reason our guarantee goes beyond that of our peers is our total certainty in the calibre of our windows and the ability of our installers.
If anything happens, just call us and we’ll fix it right.
Scotland’s leading provider of energy-efficient double glazing, that’s us. And the choice of styles, frames, colours, and finishes we carry? Unrivalled.
Visit our showroom. We’ll guide you through the full range in person.

Planning new windows or doors in your Kelso home? The Advanced Group is here to help.
We’ll arrange a home survey when it suits you. Size up. Go through your choices. Provide a written quote. No obligation. No pressure.
If you’d like to see our selection of windows and doors in person before you decide, you’re invited to pop into our showroom.
To arrange your free quote or home survey, please contact a member of our welcoming team today.
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