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 Westfield
Quality Energy Efficient Double Glazed Windows & Doors




Maybe you’ve picked up on a shift in temperature throughout your house. Heating costs going up. Or condensation building up on or inside your windows each morning.
If that sounds like your home, your windows are sending you a sign.
Older windows lose their seal over time.
That gas between the panes? It seeps away. The rubber gaskets go rigid and pull away. And what once kept keep the cold out no longer holds up.
In a part of the country like Westfield, where rain and wind can often feel more common than the sun, worn windows make a noticeable difference to how warm and cosy your home feels.
No need to worry about it! The Advanced Group has been helping homeowners for over 38 years. Whether you want new windows for just one room or a full set of replacement windows and doors, we’ll match you with the right choice and get it all installed the right way.

Some issues are obvious. Cracked glass. Rotten timber frames. Handles that don’t fasten properly.
Other signs are harder to catch. By the time you do, they’ve been costing you money for months or years.

Moisture or fogging between the two sheets of glass is a tell-tale sign. The sealed unit has failed.
When the seal fails, the argon gas that acts as insulation leaks, and the window loses a big chunk of its thermal efficiency.
Don’t let climbing heating costs chip away at your budget. Bring back your home’s thermal performance by installing perfectly sealed new windows.

Try a quick test: put your hand near the edges of the window on a windy day. If cold air is sneaking through, the seals have deteriorated.
Draught proofing strips can help in the short term, but they’re a sticking plaster on a issue that will only get worse as the rubber continues to break down.

Windows that catch, won’t fasten correctly, or refuse to open are both a security risk and an insulation concern. Warped frames, worn hinges, failed mechanisms. The window has hit the end of its working life.
Multi-point locking systems on modern windows are much more protective than the single-point catches on older windows, and options like toughened glass provide extra safety.

Did you know that windows account for a significant share of heat loss in any home? They’re the barrier between your home 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 installed.
New double glazed windows and doors will protect your property from high energy costs.

Every Westfield property has its own feel. The right window style hinges on the building, the room, and how you live in it.
The Advanced Group provides a full range of windows and doors in both double glazed and triple glazed configurations, including uPVC casement, sash, tilt and turn, and top hung styles.
Possibly the most common window type in the UK, casement windows are side-hinged and open outwards, which makes them practical for ventilation and easy to clean from inside.
Casement windows suit most property kinds, from modern houses to traditional houses, and are available in a wide choice of colours and finishes, including woodgrain effects that recreate the look of timber without the maintenance and risk of warping.

Our sliding sash windows look like original wooden sash frames. Modern thermal performance and safety come as standard.
The proportions, sight lines, and opening mechanism all match the traditional style, which is perfect if your property’s in a conservation area or you just want to hold onto its character.
These windows offer two functions: tilting inward at the top for protected ventilation, and turning completely inward on a side hinge for straightforward cleaning.
If you are in an upper-floor flat, these are a great choice because cleaning the outside of the glass from a ladder just isn’t an option.
The tilt function allows airflow without the security risks that come with a fully open window, which is especially handy for families with young children.
Hinged at the top, opening outward from the bottom. Practical for ventilation and great at keeping rain out.
You’ll often spot them in bathrooms, kitchens, stairwells, and bay window arrangements, rooms where both privacy and airflow matter.

French windows work just like French doors but are full-length windows that open outward.
Great in pairs. Pair them with sidelights to fill a wide opening with glass and natural light.

The Advanced Group’s speciality is uPVC frame materials, and this choice is backed by sound reasons.
Scotland’s weather won’t play nice with your windows, and uPVC is made to take it. It’s tough, resistant to rough, windy, wet conditions, and unlike timber, it won’t warp the same way.
And here’s one more bonus: uPVC is seriously low maintenance!
Just give it a wipe with soapy water and it’ll look as good as new.
But more importantly, our uPVC windows are highly energy efficient. Engineered with multi-chambered uPVC, some of our frames can hit a U-value as low as 0.8 W/m2K, helping restore energy efficiency to your house.
And best of all? uPVC double glazing is also the most budget-friendly option.
That allows you can often choose higher-specification glazing without blowing the budget. We also supply glazed uPVC doors, including uPVC doors, composite doors, and patio doors to complement.

For a large portion of the year, Scotland’s climate is cold, wet, and windy.
In that weather, the energy performance of your windows makes a measurable difference to how much you shell out on heating and how comfortable your home feels day to day.
Thermal performance is measured by U-value.
The lower the value, the less heat gets out through the glass and frame. Scottish building regulations currently demand a maximum U-value of 1.6 W/m2K for replacement windows.
Standard double glazed windows: 1.2 W/m2K. Premium models: as low as 0.8 W/m2K. That’s twice as good as the regulatory minimum.
That difference is clearly visible on your energy costs.
A-rated energy-efficient windows and doors, fitted with argon gas filled sealed units and low-E glass coatings, perform by pushing heat back into the room while still managing to let light through.
If you are switching from old single-glazed sash windows or early double glazing from the 1990s, you may experience a clear reduction in your heating costs within the first winter.
Many double glazing companies in Westfield offer entry-level products, but few can match the quality of the windows and doors we install.

Our experienced installers are regularly asked about our triple glazing range.
Triple glazing has an extra pane of glass, helping it to offer better insulation and reduced noise reduction.
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 on hand to talk you through the advantages of triple glazing.

New windows are an big purchase. Paying all at once isn’t always realistic. We know that.
That’s why we provide 0% APR and up to 4 years of interest free credit, making the purchase much more manageable!
It means you can get the windows you deserve through helping you spread the cost of your new windows and doors in a way that works for you.

Over 38 Years in the Business
1988. That’s when we started installing double glazing across Scotland.
That’s 38 years of knowing what performs best, building solid relationships with suppliers, and training window fitters who really take care in what they do. And truly, our experience speaks for itself on every single job.
A Full 15-Year Guarantee
A 15-year guarantee comes with every window installation, covering both the product and the workmanship.
Our guarantee stands above the competition. Why? Total assurance in the quality of our windows and the ability of our installers.
Anything goes wrong? We’ll put it straight.
Scotland’s top provider of energy-efficient double glazing, that’s us. And the selection of styles, frames, colours, and finishes we carry? Unrivalled.
Come along to our showroom and we’ll be more than happy to individually guide you through our collection.

New windows or doors for your Westfield home? The Advanced Group is more than glad to help.
Whatever your window and door plans may be, we will set up a home survey at a time that suits you, carry out accurate measurements, go over your choices, and supply a written quote with no obligation and no pressure.
Want to see the range in person first? You’re invited to visit our showroom.
For your free quote or home survey, reach out to a member of our welcoming team today.
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