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 Sherwood
Quality Energy Efficient Double Glazed Windows & Doors




You’ve felt the temperature shifting in your home. Heating costs are rising. Condensation sits on or inside your windows every morning.
If that sounds like your home, your windows are giving you a clear signal.
Old windows drop their seal with age.
That gas between the panes? It seeps away. The rubber gaskets stiffen and contract. And what once kept keep the cold out hardly slows it down.
In a city like Sherwood, where rain and wind are often more regular than sunshine, ageing windows have a real effect on how warm and pleasant your house feels.
Not to worry. The Advanced Group brings over 38 years of trusted service. Single room or full house, replacement windows or doors, we’ll find the right option and fit everything properly.

Some problems are hard to miss. Cracked glass. Rotten timber frames. Handles that don’t close properly.
Some signs slip under the radar however, and by the time you notice them, they’ve been silently losing you money for months or even years.

Moisture or fogging between the two sheets of glass is a tell-tale sign. The sealed unit has broken down.
Once that seal breaks, the argon gas that provides insulation seeps out, and your window loses a huge portion of its thermal effectiveness.
Don’t pour money away with rising heating costs and make sure to bring back your home’s thermal performance with properly sealed new windows.

Here’s a quick test: place your hand near the edges of the window on a windy day. If cold air is sneaking through, the seals have broken down.
Draught proofing strips offer a temporary measure, but they’re just a sticking plaster on a issue that will only worsen as the rubber goes on to break down.

Windows that jam, bind, or won’t fasten correctly are a security risk as well as an insulation problem. Warped frames, worn hinges, and failed mechanisms all point to the window has come to the end of its useful life.
Multi-point locking systems on modern windows offer significantly stronger protection than the single-point catches used in older frames, and toughened glass choices provide an extra layer of safety.

Windows leak a significant amount of your home’s heat. They’re the barrier between you and the outside elements.
Double glazing from the past is exactly that, in the past. The energy ratings fall far below current standards, even if the original spec was decent back then.
Choosing new double glazed windows and doors is one of the most effective ways to shield your house from high energy costs.

Every Sherwood property is different, and the right window style depends on the house, the room, and how you live in it.
A full range of windows and doors, double glazed and triple glazed, is available from The Advanced Group, including uPVC casement, sash, tilt and turn, and top hung designs, all provided and installed by our team.
The casement window claims the title of the UK’s most widely chosen style. Side-hinged and opening outwards, they’re great for ventilation and a doddle to clean from inside.
Perfect for most property kinds, from modern builds to traditional villas, casement windows come in a wide range of colours and finishes, including woodgrain effects that mimic the appearance of timber without the maintenance or fear of warping.

Like the style of original wooden sash frames? Our sliding sash windows mirror that traditional look while delivering modern thermal efficiency and safety.
The proportions, sight lines, and opening mechanism match the traditional design. That’s essential if your property is in a conservation area or you just want to maintain its character.
Tilt and turn windows tilt inward at the top for safe ventilation, and turn completely inward on a side hinge for straightforward cleaning.
Upper-floor flat? Cleaning outside glass from a ladder isn’t practical. Tilt and turn windows solve that problem straight away.
Airflow without the security concern of a fully open window. That’s what the tilt function gives, and it’s particularly handy for families with young children.
Top hung windows are hinged at the top and open outward from the bottom, making them a sensible choice for ventilation while helping to keep rain out.
You’ll often see them in bathrooms, kitchens, stairwells, and bay window setups, rooms where both privacy and airflow are important.

French windows are full-length panels that open outward much like French doors.
Paired together, they perform wonderfully and can be combined with sidelights to cover a wide opening with glass and natural light.

We focus in uPVC frame materials. And for good reason.
Scotland’s weather doesn’t take it easy on your windows, and uPVC is built to handle it. It’s tough, resilient to rough, windy, wet conditions, and unlike timber, it won’t deteriorate the same way.
Not only that, but uPVC is low maintenance.
Wipe it down with soapy water. That’s it. It looks fresh.
The big benefit? Energy performance. Our uPVC windows are built with multi-chambered uPVC, and some frames achieve a U-value as low as 0.8 W/m2K. That brings back genuine energy performance to your home.
The icing on the cake? uPVC double glazing is the most budget-friendly option available.
This allows you to often choose higher-specification glazing without breaking your budget. We also provide glazed uPVC doors, including uPVC doors, composite doors, and patio doors to coordinate.

For a significant part of the year, Scotland’s weather is cold, wet, and windy.
In such a weather pattern, the energy efficiency of your windows has a genuine influence on your heating bills and the overall cosiness of your home day to day.
Thermal efficiency is measured by U-value.
The lower that value goes, the less heat gets through. Scottish building regulations require the maximum at 1.6 W/m2K for replacement windows at present.
Our standard double glazed windows reach 1.2 W/m2K, and our premium options can achieve values as low as 0.8 W/m2K. That’s superior double glazing and triple glazing that works twice as well as the regulatory minimum.
That improvement is clearly reflected on your energy bills.
A-rated windows and doors. Argon gas filled sealed units. Low-E glass coatings. Heat bounced back in, light still getting through.
Old single-glazed sash windows or 1990s double glazing? Replace them, and you could see a clear drop in heating costs before the first winter is over.
A lot of double glazing companies in Sherwood offer basic products, but not many can compete with the quality of the windows and doors we supply.

Our trusted installers often get asked about our triple glazing range.
The additional pane of glass in triple glazing allows it to provide superior insulation and better noise dampening.
Exposed area? Up a hill? Facing north? Near a busy road or flight path? The Advanced Group will talk you through the benefits of triple glazing.

We understand that new windows are a notable investment, and paying for them in full all at once isn’t always possible.
So we make available 0% APR and up to 4 years of interest free credit. Simple.
This helps you to install the windows you want while spreading the cost of your new windows and doors in a way that fits your finances.

38 Years of Experience
Since 1988, we have been installing double glazing throughout Scotland.
38 years teaches you a lot. What performs. Which suppliers to trust. How to train fitters who take real pride in their work. And it comes through on every job we finish.
15 Years of Cover
15-year guarantee on every installation. Product and workmanship included.
The reason our guarantee exceeds that of our rivals is our full certainty in the quality of our windows and the ability of our installers.
Should anything go wrong, you can trust us to fix it quickly.
As Scotland’s leading supplier of energy-efficient double glazing products, we’ve got an incredible choice of designs, frames, colours, and finishes ready for you!
You are invited to visit our showroom, where we will be more than happy to personally guide you through our entire collection.

Considering new windows or doors in your Sherwood property? The Advanced Group is here to assist.
Whatever your window and door needs might be, we’ll book a home survey at a time that fits you, get the measurements, go over your choices, and provide a written quote with no obligation and no pressure.
Want to see our selection in person before deciding? Our showroom doors is open, come in any time.
Want to move forward? Speak to a member of our helpful team today for your free quote or home survey!
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