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Fitting Scotland Perfectly
New Windows St Davids
Quality Energy Efficient Double Glazed Windows & Doors




A drop in temperature inside the house. Increasing bills. Condensation sitting on or inside the windows come morning. Sound familiar?
If any of that feels familiar, your windows are telling you something.
Over time, older windows start to lose their seal.
The gas between the panes seeps away, the rubber gaskets stiffen and pull away, and what once did hold the cold out now barely makes a difference.
In St Davids, where the rain and wind can seem more regular than sunshine, ageing windows truly affect how warm and comfortable your home feels.
However not to worry, The Advanced Group is here to assist with over 38 years of trusted expertise. Whether you require new windows for a single room or a full house of replacement windows and doors, we can point you towards the right option and get everything fitted the right way.

Some issues are hard to miss. Cracked glass. Rotten timber frames. Handles that don’t lock correctly.
But then there are the quieter signs. The ones you don’t notice until they’ve already been draining you money for months, perhaps years.

Can you notice moisture or fogging forming between the two sheets of glass? That tells you the sealed unit has broken down.
When the seal goes, the argon gas that acts as insulation escapes, and the window loses a significant chunk of its thermal efficiency.
Stop wasting money away on increasing heating prices. Recover your home’s thermal performance with properly sealed new windows.

Place your hand near the window edges on a windy day. Cold air sneaking through? The seals have worn away.
Draught proofing strips might help in the short term, but they’re only a sticking plaster on a fault that’ll only worsen as the rubber continues to breaking down.

Seizing windows that won’t lock correctly aren’t just inconvenient, they’re a security risk and an insulation concern too. Warped frames, worn hinges, and failed mechanisms all signal a window that’s reached the end of its working life.
Modern windows have multi-point locking systems that are significantly more secure than the single-point catches on older models. Options like toughened glass add further security too.

Windows account for a considerable proportion of heat loss in any property. It is the barrier between you and the outside world.
Your old double glazing? It’s had its day! The energy ratings are far below what’s available now, even if the original setup was solid at the time.
Want to shield your house from those high energy bills? New double glazed windows and doors are the solution.

The right window choice for your St Davids house will depend on the house itself, the room in question, and how you occupy it.
The Advanced Group stocks and fits a complete selection of windows and doors in double glazed and triple glazed configurations, including uPVC casement, sash, tilt and turn, and top hung designs.

The casement window claims the crown of the UK’s most widely chosen style. Side-hinged and opening outwards, they’re practical for ventilation and a doddle to clean from inside.
Suitable for most property types, from modern homes to traditional villas, casement windows are available in a wide choice of colours and finishes, including woodgrain effects that mimic the look of timber without the maintenance or risk of warping.

Want the appearance of original wooden sash frames? Our sliding sash windows recreate that classic style while providing modern thermal performance and safety.
Proportions, sight lines, and opening mechanism all match the traditional look. Ideal for conservation areas or maintaining your property’s character.

These windows give two options: tilting inward at the top for secure ventilation, and turning completely inward on a side hinge for simple cleaning.
They’re especially popular in upper-floor flats, where climbing up a ladder to clean the outside of the glass isn’t an option.
The tilt feature is a genuine benefit! You get airflow without the safety worries of a fully open window, which is particularly useful if you’ve got young ones at home.
Top hung windows open outward from the bottom while staying hinged at the top, which is brilliant for getting air in without letting rain through.
Commonly installed in bathrooms, kitchens, stairwells, and bay window setups. Any space where privacy and airflow both are important.

French windows look just like French doors but are full-length windows that open outward.
Paired together, they perform wonderfully and can be paired with sidelights to open up a wide opening with glass and natural light.

The Advanced Group concentrates in uPVC frame materials for good reasons.
uPVC frame materials are particularly well suited to the unforgiving Scottish weather, delivering durability and resilience to harsh, windy, and wet weather. Unlike timber frames, uPVC won’t suffer from the same warping or rot issues.
Low maintenance comes in as standard with uPVC.
Soapy water and a cloth. That’s all it needs to get uPVC looking good as new.
More to the point though, our uPVC windows are very energy efficient. With multi-chambered uPVC construction, some of our frames can achieve a U-value as low as 0.8 W/m2K, helping to restore your home’s energy efficiency.
Best of all? uPVC double glazing is the most budget-friendly option.
This means you can often fit higher-spec glazing without blowing the budget. We also provide glazed uPVC doors, including uPVC doors, composite doors, and patio doors to match.
Let’s be real, Scotland is cold, wet, and windy for a good chunk of the year!
That climate means the energy efficiency of your windows makes a difference. It affects how much you pay on heating and how comfortable your home feels day to day.
A window’s thermal efficiency is measured by what’s known as its U-value.
The lower the value, the less heat is lost 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 efficient as the regulatory minimum.
The evidence? It lands on your energy bills.
A-rated energy-efficient windows and doors, supplied with argon gas filled sealed units and low-E glass coatings, function by reflecting heat back into the room while still managing to let light 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 bills within the first winter.
A lot of double glazing businesses in St Davids sell basic products, but not many can match the quality of the windows and doors we provide.

Our trusted installers often get asked about our triple glazing options.
An extra pane of glass. Improved insulation. Greater noise dampening. That’s triple glazing.
Exposed area. Up a hill. Facing north. Near a busy road or under a flight path. If any of that rings true like your property, The Advanced Group is on hand to talk you through the advantages of triple glazing.

New windows are an significant spend. Paying for everything at once? Not always realistic. We get that.
0% APR. Up to 4 years interest free credit. That’s what we offer.
This lets you get the windows you want by spreading the cost of your new windows and doors in a way that works around your budget.
38 Years of Proven Experience
Since 1988, we have been installing double glazing throughout Scotland.
38 years of learning what performs. Growing supplier relationships. Training fitters who take genuine pride in every job. Our experience shows on every job we finish.
A Complete 15-Year Guarantee
Every window installation comes with a 15-year guarantee covering both the product and the workmanship.
The reason our guarantee goes beyond that of our competitors is our total confidence in the standard of our windows and the skill of our installers.
Something goes wrong? We fix it right. That’s the promise.

Scotland’s leading provider of energy-efficient double glazing. An unmatched range of designs, frames, colours, and finishes.
Come along to our showroom and we’ll be more than happy to personally guide you through our range.

If you are thinking about the installation of new windows or doors in your St Davids home, The Advanced Group would be more than glad to support you.
We begin with a home survey at a time that suits you. Measurements taken, options discussed, and a written quote given. No obligation, no pressure.
Should you wish to see our range of windows and doors in person before reaching a choice, you are welcome to visit our showroom.
To book your free quote or home survey, please reach out to a member of our helpful team today.
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