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 Haddington
Quality Energy Efficient Double Glazed Windows & Doors




Maybe you’ve picked up on a drop in temperature around your home. Bills rising. Or condensation sitting on or inside your windows each morning.
If that sounds familiar, your windows are sending you something.
Over time, older windows start to lose their seal.
Gas leaks from between the panes. The rubber gaskets harden and shrink. What used to hold back the cold now barely slows it down.
Haddington’s rain and wind can seem more frequent than the sun. Worn windows make a noticeable difference to how warm and comfortable your house feels.
Not to worry. The Advanced Group brings over 38 years of trusted expertise. Single room or full house, replacement windows or doors, we’ll find the right fit and install everything right.

Some signs are easy to spot, like cracked glass, rotten timber frames, and handles that don’t lock the right way.
Some signs sneak under the radar though, and by the time you pick up on them, they’ve been silently losing you money for months or even years.

Moisture or fogging between the two sheets of glass is a classic sign. The sealed unit has broken down.
The seal goes, and with it leaks the argon gas that delivered the insulation. The window loses a major portion of its thermal performance.
Don’t keep pouring money away on climbing heating prices. Bring back your home’s thermal performance with well 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? They’re a quick fix. The issue only worsens as the rubber keeps degrade.

A window that jams, won’t fasten properly, or struggles to open is not just an inconvenience. It’s a security risk and an insulation problem. Warped frames, worn hinges, and failed mechanisms are the window’s way of telling you it’s past its best.
Multi-point locking systems outperform the old single-point catches for protection. Toughened glass provides extra safety.

A large proportion of heat loss in any house comes from the windows. They represent the bridge between your living space and the outside world.
Double glazing from years ago is a thing of the past, and the energy ratings will be far below what’s on offer today, even if the specification was decent when first fitted.
New double glazed windows and doors will protect your property from high energy bills.

No two Haddington houses are the alike, and the best window style comes down to on the building, the room, and how you live in it.
The Advanced Group delivers a full selection 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 widely chosen window type in the UK, casement windows are side-hinged and open outwards, which makes them ideal for ventilation and simple to clean from inside.
Casement windows fit with most property types. Modern homes, traditional villas, the lot in between. On offer in a wide range of colours and finishes, including woodgrain effects that replicate the look of timber without the maintenance or warping fear.

Our sliding sash windows are made to recreate the appearance of original wooden sash frames, while providing modern levels of thermal efficiency and security.
The proportions, sight lines, and opening mechanism all follow the traditional style, which matters if your property is in a conservation area or you simply want to keep its 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.
If you live in an upper-floor flat, these are a brilliant option because cleaning the outside of the glass from a ladder just isn’t an option.
The tilt function lets air in without the safety concerns of having the window wide open, which is especially handy if you’ve got young children.
Hinged at the top, swinging outward from the bottom. Top hung windows give you ventilation and help keep the rain out at the very same time.
Commonly fitted in bathrooms, kitchens, stairwells, and bay window arrangements. Every space where privacy and airflow both count.

French windows are full-length windows that open outward in the same way as French doors.
In pairs, they work stunning, and you can pair them with sidelights to fill a wide opening with glass and plenty of natural light.

The Advanced Group specialises in uPVC frame materials for good reasons.
Scottish weather can be brutal, but uPVC takes it all! It’s long-lasting, resists wind, rain, and the harshest of it, and you won’t get the warping or rot issues that timber frames come with.
Not only that, but uPVC is low maintenance.
Soapy water and a wipe. That’s all it takes to keep uPVC looking as good as new.
Quite possibly most importantly, our uPVC windows provide strong levels of energy performance. Built with multi-chambered uPVC, some of our frames attain a U-value as low as 0.8 W/m2K, working to bring back energy efficiency throughout your property.
And the better part? uPVC double glazing happens to be the most affordable option on the market.
This means you can often choose premium-grade glazing without breaking the budget. We also stock glazed uPVC doors, including uPVC doors, composite doors, and patio doors to complement.

Scotland dishes out cold, wet, and windy weather for a large portion of the year.
With a climate like that, the energy efficiency of your windows makes a noticeable difference to what you pay on heating and how cosy your house feels day to day!
U-value. That’s the number that reveals you how thermally efficient a window truly is.
A lower number means less heat escaping through the glass and frame. At present, Scottish building regulations demand a maximum U-value of 1.6 W/m2K for replacement windows.
Our standard double glazed windows deliver 1.2 W/m2K, and our premium options can achieve values as low as 0.8 W/m2K. That’s high-quality double glazing and triple glazing that performs twice as well as the regulatory minimum.
The proof? It lands on your energy costs.
A-rated energy-efficient windows and doors with argon gas filled sealed units and low-E glass coatings are brilliant at sending heat back into the room while still letting lots of light through.
If you are switching from old single-glazed sash windows or early double glazing from the 1990s, you should notice a noticeable decrease in your heating spend within the first winter.
There are plenty of double glazing firms in Haddington selling entry-level products, but not many can rival the quality of what we supply.

We get asked about triple glazing a lot.
Triple glazing includes an extra pane of glass, which gives improved insulation and significantly better noise dampening.
If your property is in an exposed position, at a raised altitude, facing north, or close to a busy road or flight path, The Advanced Group would be more than happy to talk you through the advantages of triple glazing.

We completely appreciate that new windows are an significant spend, and paying for everything at once isn’t always practical.
To support with this, we provide 0% APR and up to 4 years of interest free credit.
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 works for you.

38 Years of Proven Experience
Installing double glazing across Scotland since 1988. That’s our history.
38 years of learning what works. Forming supplier relationships. Training fitters who take pride in each job. Our experience is visible on every project we complete.
Our 15-Year Guarantee
Every window installation comes with a 15-year guarantee that covers both the product and the workmanship, which is really good to know!
Our guarantee lands above the competitors. Why? Total certainty in the quality of our windows and the ability of our installers.
Should anything come up, you can count on us to resolve it promptly.
Scotland’s top provider of energy-efficient double glazing. An outstanding range of designs, frames, colours, and finishes.
Do visit our showroom and we will be more than glad to personally guide you through our range.

Planning new windows or doors in your Haddington house? The Advanced Group is here to help.
We start with a home survey at a time that works for you. Sizes taken, possibilities gone over, and a written quote given. No obligation, no pressure.
Should you wish to inspect our selection of windows and doors in person before making a choice, you are welcome to visit our showroom.
Your free quote or home survey is just a phone call away. Get in touch with our helpful team today.
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