Casement Windows across St Helens

Casement windows are one of the most popular window options, as they come in many different styles and sizes. Because casement windows covers anything that opens outwards, they are flexible, offer high quality thermal performance and provide an advanced level of security.


Casement windows are a popular choice because they are versatile and can be designed to suit virtually any style of property, in precise sizes and glazing options.


All casement windows are fully sealed as the window sash presses against the frame, creating an airtight seal when closed. This will stop cold air getting in.

Clear Views

Casement windows will give you an unobstructed view, both when opened and when closed, and will bring light into any room in your Liverpool home.

Easy to Keep

These windows will just require an occasional wipe with a damp cloth, to be kept looking as good as new. They will never discolour and will not need to be repainted.


Casement windows open top to bottom and can be opened all the way out for maximum ventilation. They can also be opened at an angle to catch a breeze.


They are fitted with high performance multipoint locks and internal glazing, ensuring no one can remove the glass from the outside of your home.

Get a Quote Today

Use our online quoting engine to get an estimated price on our uPVC casement windows.

Colour Options

Glass Options

white chartwell-green dark-red brilliant-blue Steel-Blue agate-grey
clear casement-arctic-cutout casement-oak-cutout casement-pelerine-cutout casement-stippolyte-cutout casement-sycamore-cutout casement-minster-cutout casement-florielle-cutout casement-flemish-cutout casement-mayflower-cutout casement-everglade-cutout casement-contora-cutout casement-cotswold-cutout casement-digital-cutout casement-warwick-cutout casement-charcoal-sticks-cutout casement-autumn-cutout casement-chantilly-cutout casement-taffeta-cutout


For a stylish modern elegance, the unique beveled edge of the chamfered frame offers a contemporary design.

optima sculptured

Our sculptured frame is a more decorative design which replicates the traditional timber styles.

optima flush
Flush Sash

Flush designs emulate classical styles with the sash and outer frame being lined up level with each other.

Window Hardware

Clean Designs

The button sits horizontal to the handle.

Push to Release

To release the locking system simply push the button.


Passes the BSEN1690 salt and ammonia resistance test.


Advanced security with additional key locking features.


Left or right hand operation with our sculptured handle.

Colour Choices

Push button and colour cap screw available.

Triple Window Glazing Warrington

uPVC Casement Window Benefits

Fire Egress Hinges

Lipped slider hinges aid the ease of use. Simple friction adjustment means no metal parts make contact. We offer restricted hinges to safeguard children and other vulnerable people.

Stainless Steel Friction Stays

We test the durability and weather resistance of our installations through thousands of cycles. Choose ferritic 430 or austenitic 304 stainless steel for ultimate corrosion resistance.

Bespoke Hardware Choices

All our bespoke hardware comes in a variety of colours to complement any interior design. They are also supported by a ten year guarantee, promising their longevity.

Leading Locking Systems

Our high security multi point locking systems offer leading protection against forced entry. Additional bolts deliver enhanced stability and prevent hinge attacks.

Trickle Vents

Trickle vents are available in both aluminium and uPVC vents. They are compliant with latest regulations and can be delivered detached to avoid damage.

Weather Resistant

Our engineered casement windows are weather resistant, making draughts, cold spots and mould a thing of the past when you choose JWS double glazing!

Docking System Bolt

Our profile features a patent bolt that prevents sideways movement, reinforcing the window for a secure fit and hindering intruders.

Advanced Shoot Bolt

Our advanced heavy duty bolt has up to 300% greatest contract area compared to competitor shoot bolts.

Long Wearing Hardware

Our hardware is salt and spray resistant (BSEN1670) and has been cycle tested over 50,000 times for long wearing performance.

Casement Window Customisation

Our casement windows can be customised to suit you. We make bespoke to order, allowing you to find the perfect option for your property. Choose between a range of handles and colours, added accessories and glazing.

Use our helpful online tool to customise and configure our products. Choose from a range of glazing options and an eye catching selection of colours. Use our quoting engine to get priced up today.

Why Choose JWS?

1 - Good Prices

We pride ourselves in offering high quality casement windows at an affordable price point. Our double glazing costs are competitive to our St Helens based competitors. You will never be charged over the odds and we ensure there are no hidden costs. Our customers choose us for our clear, comprehensive quotes they can trust.

2 - Environmentally Conscious

We understand that producing windows can have a negative environmental impact. JWS are supporters of the Environmental Agency, and regularly recycle uPVC profiles and glass sealed units, because we understand our industry is part of the problem.

3 - Customer Care

We value every customer who uses our services and provide a stress free experience. Our installation process is hassle free for homeowners, we ensure everyone is kept in the loop and that our installation process is quick and efficient. We understand these installations can impact daily life, and we want to make this as minimal as possible.


Casement Window Prices St Helens

If you wish to get a price for our casement windows, please use our online quoting engine. It’s free to use, works on all devices and can offer instant and accurate prices for your double glazing. Enter your specifications and get your free quote.

Alternatively, we are happy to offer free quotes over the phone. Please fill in our online form, and we’ll get back to you. If you wish to contact us directly, for queries about our products and services, please call 01744 747030.

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