The Extreme UPVC window is one of the most advanced window systems on the market and is supplied with a quality guarantee…

We are proud to offer customers nationwide solutions for their home improvement needs, and UPVC windows are often a crucial asset to any successful renovation project. UPVC windows are an affordable, low maintenance and attractive solution for your residence. Inspired by today’s modern demands, the Extreme collection (featuring casement windows, tilt & turn windows and bay & bow designs) takes classic UPVC windows to a whole new level. Engineered to the highest specification, our contemporary designs feature a mix of Extreme features.

Extreme UPVC Windows

To ensure you’re given maximum thermal efficiency, we’ve worked hard to ensure A+ energy rated glass is included as standard throughout the Extreme range to keep your home warm and cosy.

Extreme windows also come in the most celebrated window styles and just about any colour you can think of.

Grey Extreme UPVC Windows
Extreme UPVC Windows


UPVC Extreme windows can be supplied in multiple styles, including as casement windows, sliding sash windows, bay & bow windows, and tilt & turn windows.

Cream UPVC Cottage Windows


Casement windows are amongst our most popular. Stylish and adaptable, they can be made to suit virtually any type of property with ease.

UPVC Tilt & Turn Windows


If you need your UPVC windows to be nimble and versatile, then a tilt and turn window is ideally positioned and will expose your home to the outside.

UPVC Sash Windows


A sliding sash window has that rare ingredient of managing to merge strength with practicality, and its vertical opening is a priceless touch.

Wouldn’t you prefer windows with EXTREME protection?

You’re setting yourself up for trouble if you fail to take home security seriously. The EXTREME range has been specifically developed to curb burglaries and thefts, with each window coming with 11 visible points, making it 3 times more secure than your standard window. 

EXTREME enhanced security with centre VAULTBOLT and multi cam locking technology.

EXTREME enhanced durability with UNIQUE superglide gearbox ensures smooth operation.

EXTREME enhanced COMPRESSION and acoustics with interlocking hinge bolts and optimum weatherseals.

Herculean Hinge

Heavy duty, highly engineered hinges that provide increased load bearing. With anti-crowbar technology and sustained use for a lifetime.

Extreme Locking

Up to 9-point locking system and two high compression hinge bolts to create 360-degree solidity. Also available with enhanced security option designed to meet the requirements of the police-recognised Secured by Design initiative.

Extreme Frame

Highly engineered frames, that encompass 14 chambers (combined sash and frame) to provide supreme thermal performance. Maximum protection against twist and ageing so your windows will look and operate like new for longer.

Extreme Weather Seal

Dual density and high elasticity for twice the standard coverage. Long lasting airtight protection from the elements and added noise reduction.

Ultimate Glass

High performance next generation glass for superb energy efficiency. Ultra-clear outer pane and a super soft coat inner pane. Improved clarity for the perfect view.

Extreme Handles

Our Extreme Handles come in a range of colours to suit your home. Built to last with robust materials and quality finishes.
Earn your money back through great energy savings…

If the cost of your energy bill seems to be going up and up each month, your windows probably aren’t doing a good enough job of insulating your home. Replaced these windows with the latest thermally efficient designs and reap the rewards from it.

The draughts you used to experience will be gone and not as much heat will be lost through the windows. You’ll be left with a much warmer house that doesn’t cost you a fortune to heat.

White UPVC Windows
Oak Envisage Flush Windows
White UPVC Windows


Customising the window doesn’t just entail choosing a style. You also need to pick a coloured finish and some glazing and hardware as part of the buying process.

Be spoilt for choice with our exquisite colour range…

With literally hundreds of shades, textures, and wood effects to choose from, you certainly won’t be short of options with the Extreme collection. Finding a colour to match your property has never been so simple, whether you’re after emerging favourites or something more traditional. Traditional white UPVC will always have their place, but that doesn’t mean that you must always follow the crowd.

A definitive suite of glazing options, including privacy glazing…

Glass might be the most underappreciated element of any window design. As with the design itself, you should first decide what you want from your glass, be that either stylish good looks or rugged performance. Thankfully, Extreme comes with both. A Premium Retailer can also include privacy glass in Extreme windows if you want to obscure a room from view.

Handles that are masterfully made…

When you touch the traditional and contemporary-styled handles, you can feel their quality. Credit goes to the craftspeople behind their design for their exceptional work and dedication.

The moment the locking system inside the handles is engaged, it keeps the windows completely secure.


Simply fill in your details for your free, no obligation quotation, and click "Get Quote" and your nearest retailer will contact you as soon as possible to start your journey.

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