scotland flag | The Advanced Group WindowsFitting Scotland Perfectly

Double Glazing Trinity

34 years trans | The Advanced Group Windows
Founded in 1988, Advanced has over 34 years of experience in the industry and has quickly grown to become Scotland’s go to choice for double glazed and triple glazed uPVC doors and windows.
scotland flag | The Advanced Group WindowsFitting Scotland Perfectly

Double Glazing Trinity

We provide a substantial range of A-rated elegant and practical products, offering unrivalled energy efficiency, flexibility, and durability from traditional casement windows to the current innovative tilt and turn technology, all at incredibly competitive prices.
To learn more on the benefits of secondary glazing, new window installation, or to organise a free survey of your home by among our expert installers, call our expert sales group today on 0141 473 4141.

zero deposit | The Advanced Group Windows
zero percent | The Advanced Group Windows
5 years | The Advanced Group Windows
15 years | The Advanced Group Windows

34 Years of Home

Our windows guarantee to enhance the
appearance of your home both inside and out.
casement before | The Advanced Group Windows BEFORE
casement after | The Advanced Group Windows AFTER


We’ve installed thousands of windows over the last 34 years, take a look at what we have installed more recently.

Popular Colour Options

Whatever look you are going for with your home, there is a  colour choice type to match, with a huge range of styles and decorative finishes available.

Our Brochure

white windows | The Advanced Group Windows
oak | The Advanced Group Windows
rosewood | The Advanced Group Windows
mahogany | The Advanced Group Windows
black | The Advanced Group Windows
cream | The Advanced Group Windows
charcoal | The Advanced Group Windows

Our Brochure

white windows | The Advanced Group Windows
oak | The Advanced Group Windows
rosewood | The Advanced Group Windows
mahogany | The Advanced Group Windows
black | The Advanced Group Windows
cream | The Advanced Group Windows
charcoal | The Advanced Group Windows

About Advanced Windows

The substantial range of windows and doors available to our <a href=”/locations/double-glazing-Trinity“>Trinity</a> customers is of the highest quality possible, created using the current most sustainable production techniques in among Europe’s most innovative extrusion facilities.

Leading the marketplace when it comes to sustainability, with 80% of our uPVC frames built from recycled materials, all our products are made to last and are driving the future of double and triple glazed windows.


Badly fitted window frames are Trinity properties, leaving property owners with costly energy expenses, and highlighting the value of selecting windows with highly energy efficient and weather condition resistance frames.

All the frames used in our products are thoroughly developed and built utilising a several internal chamber design that serves as a barrier versus the cold outside air and prevents the heat from your home getting away.

This heat retention is important to avoiding extortionate energy expenses preventing heat getting away practically as fast as your home heater is able to generate it.

Our frames permit our customers to enjoy fantastic energy efficiency rankings throughout even the coldest winters and are among our major reasons for our windows being A ranked by the BRFC.


Energy reflecting glass is fitted in all our double and triple glazed units, transmitting solar energy from outside to within your house, whilst reflecting and retaining internal heat.

Thermo spacers have also been installed to prevent cold areas from forming around the edges of the glass panes, in turn reducing the chances of condensation and mould growth and increasing the overall efficiency of the windows.

Energy Efficiency

Home heating expenses have escalated over the last few years, and Trinity homeowners are paying more than necessary as a direct result of badly installed, or inadequately performing, doors and windows.

In fact, over 20% of all the heat loss from a standard domestic home in Scotland is estimated to be a direct result of this, suggesting that choosing the most proper new triple or double glazed windows is an extremely important financial decision.

Given the major impact that energy efficiency has on your family’s finances, and the fact that finding windows with the highest possible energy efficiency can be an incredibly difficult task, we understand that finding the right window for your requirements is a daunting prospect.

For this reason, we’ve worked hard to create a highly energy efficient range of units for you to select from, with our products already saving our customers hundreds of pounds every year after installation in lowered energy expenses.

The energy efficiency of a window is gauged in U-Values, with the lower the U-Value, the more energy efficient it is.

Advanced’s products have some of the most excellent u-vales of any doors and windows on the market, with our standard double glazed windows alone offering an excellent u-value of 1.4 W/m2K (A-rated).

Our double glazing also features the option of further minimizing this to just 1.2 W/m2K, and by using Soft Coat Xtra and Argon Gas, our triple glazing has the ability to attain a u-value of just 0.8 W/m2K, ideal for those wanting to increase their energy efficiency.

It is approximated that by having existing windows and doors changed by double or triple glazing installed by the specialist fitters here at Advanced, you could conserve yourself as much as 40% on your annual heating bills.


Absolutely nothing is more important than the safety of our liked ones, and selecting units that offer excellent security functions is important when selecting your replacement doors and windows.

Initially, it’s crucial to keep in mind that merely updating from standard single glazed windows to double or triple glazed windows is a major enhancement for home security as adding extra layers between you and a burglar makes it a lot harder for them to enter your house.

At Advanced, we take security an action further, however, with fully welded robust frames, and internal glazing ensuring that the safeguarding glazing bead can not be taken off from outside the property.

Strong hinges, high quality handles, and high performance multi-point locking system are also included as standard.

For those who are after a much more secure option, we also offer strengthened or laminated glass that can be fitted upon demand.

We check our products to guarantee they’re the most resilient and robust offered on the marketplace, with all the hardware elements in the units checked for 600 hours prior to being accepted into production. (3x longer than the market standard).

Casement Windows

Casement windows have been the most popular window design in the UK for many years, and with a timeless traditional design and outstanding flexibility, this does not look like altering at any time soon.

Our casement windows can be hinged from either the side or from the top and are considered among the most energy efficient choices for nearly any property.

Product Performance | The Advanced Group Windows

Product Performance

We thoroughly develop all our products so they’re incredibly high quality, and offer a 15-year warranty for every single installation, offering you peace of mind that if anything goes wrong you won’t be faced with pricey repair expenses.

Multi Chambers | The Advanced Group Windows

Multi Chambers

Multi chambers within the frame of all our windows work to retain heat and keep your home at the ideal temperature all year long, significantly decreasing the amount of energy you are squandering year on year.

Energy Performance | The Advanced Group Windows

Energy Performance

Thanks to the industry leading innovation behind our heat reflecting glass, all our casement windows are A-rated for energy efficiency.

Concealed Gaskets | The Advanced Group Windows

Concealed Gaskets

To maximise the noticeable glazing area of your window, all the glazing gaskets on our windows are contained within the frame of the window itself, guaranteeing that gasket rubber is concealed and does not interrupt your view.

Positive Drainage | The Advanced Group Windows

Positive Drainage

All our frames come equipped with inbuilt channels to facilitate effective drainage, and are fully sealed and water tight, meaning that your new uPVC windows and doors will prosper throughout even the most severe of Scottish winters.

Frame Finish | The Advanced Group Windows



Tilt and Turn Windows

With the addition of an innovative hinge system that enables ultimate versatility, tilt and turn windows are a popular variation on the timeless casement window.

Tilt and turn windows can either be opened with the leading ’til ted’ inwards for optimum ventilation or ‘turned’ as much as 90 degrees inwards from the side.

When opened fully in the ‘turn’ position, a tilt and turn window can be used as a legitimate fire escape option.

French Windows

French windows work in the same way as french doors, with two openings, each opening from either side of the frame.
French windows are a highly elegant window option and serve as a reliable emergency exit when both sides remain in the fully employment opportunity.


As a contemporary business, we run with the current climate emergency at the heart of whatever that we do. We’ve tailored every aspect of our manufacturing procedure so that it matches this principles without jeopardising our product quality and efficiency.

Minimising Waste

To limit the quantity of waste that happens as a by-product of our manufacturing, 80% of the material utilized in our uPVC frames are created using recycled materials, with most of the waste produced being processed in a recycling center instead of being sent out to landfill.

Decreasing Carbon Emissions

We not just do all we can to limit our own carbon emissions, but we are also continuously searching for ways to assist our customers reduce their own carbon footprint, and conserve a lot of cash along the way.

Our multi-chamber technology and thermo spacer bars could help you reduce the frame carbon emissions of your home by up to 70%, by substantially minimising the amount of time you need to have your home heating system turned on.

Get in Touch

Call your regional experts at The Advanced Group is you are trying to find double glazing services in Trinity or the surrounding area.

Our range of triple and double glazing products is second to none, from sash windows to patio doors.

We have developed a wonderful reputation for quality double glazing Trinity products and excellent client care, with both our domestic and business customers, and will put your requirements initially from the initial visit to the final installation of your new windows.

For more details on our full range of Trinity glass and glazing products, a free quote, or to set up a free survey, contact our expert team today on 0141 473 4141.