EXTREME UPVC WINDOWS

The Extreme UPVC Windows range is one of  the UKs number one, top selling UPVC window system available. Sensibly priced windows, thermally advanced, superior quality, ultimate security.
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EXPLORE OUR EXTREME UPVC WINDOW RANGE
One of the UKs top selling windows!

Looking for specific UPVC windows? You will find all in our range including sliding sash, bay and bow and tilt and turn designs, and many others, all ‘A’ energy rated as standard. 5 Star are FENSA approved Installers.

UPVC grey Casement Windows

CASEMENT Extreme UPVC WINDOWS

High security, thermally efficient, A+ energy rated window, whose frame has one or more openers attached by Herculean incredible hinges at the side or top. Made to measure, in a choice of colours.

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UPVC Tilt & Turn Windows

TILT & TURN Extreme UPVC WINDOWS

Two opening choices in one window with one handle. Tilt – opens inwards at the top for secure room ventilation. Turn – engages the side hinges to open the window inward, allowing more fresh air, cleaning and an emergency escape!

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Sliding Sash Windows

SASH Extreme UPVC WINDOWS

Modern Sliding Sash Window replacements will transform your home with no more cold draughts! Save on heating bills and maintenance costs – no more painting with UPVC.

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UPVC Fixed Windows

FIXED FRAME Extreme UPVC WINDOWS

Maximum light and a better view outside – when you want a window with no opening sections, also called a Picture Window.

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Windows buyers guide to Grey UPVC Bay & Bow Windows

BAY & BOW Extreme UPVC WINDOWS

Bay and Bow Windows protrude outside from the room to make more space inside, giving a panoramic view and a distinctive feature to the look of your house. Bay windows are angular in design while Bow windows follow a curved arc shape.

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UPVC French Windows

FRENCH Extreme UPVC WINDOWS

French windows date back hundreds of years, a design classic. When a child draws a house, the windows are always French style, both sides fully open and with Extreme there’s no annoying fixed central bar!

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Do your Windows deserve EXTREME protection?

Only our next generation UPVC windows are called Extreme because they are Extreme! We are delighted to offer 5 Star customers the Extreme range of UPVC Windows.  A vast improvement on older UPVC windows, they combine up to nine visible locking points, giving three times more security than before. All Extreme Windows include as standard - key locking handles, Extreme herculean hinges for increased load bearing with anti-crowbar technology and a lifetime guarantee. Also - double or triple glazing units, all Argon filled and with black warm edged spacer bar and optimal Planitherm Total + coated glass as standard to keep your heat in!  For extra sound proofing acoustic options are available.

Casement Windows

HERCULEAN HINGE

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

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. - SECURER

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. - IMPROVED

EXTREME WEATHER SEAL

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

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. - FUTURISTIC

EXTREME HANDLES

Our Extreme key locking handles come in a range of colours to suit your home. Engineered to last with robust materials and quality finishes. - TOUGHER

Extreme Anti-Freeze Weather Seal

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

EXTREME security

EXTREME heightened security with centre VAULTBOLT and multi cam locking technology - SAFER.

EXTREME Durability

EXTREME heightened durability with UNIQUE SUPERGLIDE gearbox ensures smooth operation – SMOOTHER.

Personalise the design of your new UPVC windows

Please explore the window styles in our Extreme range - everything is made to measure and fitted by our experienced teams.  You can replace your windows like for like or else modify any elements you wish – you could add extra vents or move them around and redesign your replacement windows completely.  Change the colour, inside or out, move the hinges from side to top, with changes to the opening direction - everything is up to you, and one of our friendly and experienced designers is on hand to help – there is no charge for their time so please do use them, just visit or call and one of our Showrooms receptionists will arrange a convenient visit.

Not all UPVC windows are white...

UPVC Windows finished in white are the most popular choice around. More houses have white UPVC windows than any other colour as it never goes out of fashion. It is the easiest colour to repair, easy to clean and the cheapest finish to choose.  White has stood the test of time with even the early inferior white UPVC windows lasting over 30 years. However, if white is not for you, we do offer a selection of other colours for those wanting something different with options including Black, Cream, Woodgrain White, a selection of Greys, Irish Oak, and Chartwell Green - plus many other fantastic colour finishes.

Our glass is futuristic!

We use coated glass, which has a clever film on the inner pane of all our energy-efficient Insulating Glass Units. This coating reflects the heat back into your room whilst also using the sun’s warmth and light to give you a brighter and cosier living space – meaning reduced heating and lighting costs. You can choose double or triple glazed units in your new windows, a 5 Star Designer will explain all your options (and we do not charge for Designer appointments).  If you’re getting a replacement bathroom window (or indeed for any room that you don’t want people to look in upon), then opt for our Textured Glass - the surface distorts natural day light which gives privacy without reducing the amount of light coming in - ask one of our Designers to show you our Glass Pattern Options.

Superbly made handles…

We benefit from the skills of the finest craftspeople in the industry, who each take tremendous pride in their work, as you can tell when you see our traditional and contemporary-styled handles. They’re a great fit for our windows and work effortlessly. The secure locking system fitted within our handles keep the window securely fastened when locked, locked safe when in the slightly open ‘night ventilation’ position and even locked open (to prevent a window being closed when you need it left open). So, our handles look great, feel great, work great, and last for a lifetime!