UPVC Casement Windows

November 20, 2017

UPVC Casement Windows

New or Replacement uPVC Casement Windows

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a rated windowsThe ultimate guide to stylish & versatile uPVC casement window designs for all types of homes.

In terms of the ideal new or replacement window for your home, the casement window design is one which can be used in almost any style of property, from a country cottage to an inner city apartment.

What are the main attractions of uPVC Casement Windows that make them so popular?

The amount of variation available when it comes to size, appearance and function, make casement windows, and uPVC casement windows in particular, a very popular choice.

Slim-line Appearance

Modern slimline profile uPVC casement windows are more in balance with the property. No more “bulky” thick frames to overpower the look of your home, spoil the view or block natural sunlight.

The Look of Your choice

Whatever the character of your home, you can find a way to match with uPVC casement windows. With optional design features such as “faux-sash”, sculptured beads, astragals or Georgian bars, you can go classic or contemporary.

Ease of Use

Featuring a single lever handle for each moveable section, opening & closing a casement window could not be easier. Turn the handle one way to open, turn it back to close & lock – simple.

Fresh Air & Ventilation

The opening sections of uPVC casement windows have a wide angle of movement which allows excellent ventilation. The hinge system also allows for part opening without the fear of the window being blown wide open or shut by a gust of wind.

Quality Hardware & Fittings

Strong stainless steel hinges and high quality handles mean your uPVC casement windows open & close properly and remain tight fitting for many years. Weatherproofing is provided by long-life neoprene or butyl gaskets that also act to “cushion” the frame upon closing.

High Security Levels

With home security high on the list of priorities, you can rely on the multi-point locking system fitted to keep your new windows as resistant to forced entry as possible. Internally fitted window beadings add an extra level of crime prevention.

Price Range

Compared to Hardwood or Aluminium window products, uPVC casement windows are lower priced in the majority of situations when compared on a like-for-like basis. If you consider prices when compared to UPVC Sash windows, the savings are even greater.

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Why you should buy uPVC Casement Windows

To sum it all up, uPVC Casement windows are the ideal choice for so many homeowners because they look great, are super easy to use, last a long time and offer excellent value for money.

UPVC Casement Windows M Trickle Vent

What are the design options for new or replacement uPVC Casement Windows?

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You can configure the design of your window to suit the location and purpose quite easily. The number of opening sections in each window is entirely optional, and flexible enough to cope with any demands.

There are 4 options for the opening function, fixed, top, side or bottom hinged;

  • Bottom hinged are sometimes called hoppers and should open inwards.
  • Top openers are sometimes called awning casements and should open outwards.
  • Side hinged windows will open outwards for convenience, but you can find inward opening casement window variants in the form of uPVC Tilt & Turn designs.
  • Fixed – none of the window sections open.

How you combine the above in terms of appearance or how many sections open, and where the opener is located, is completely up to you.

upvc windows configurations
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  • Energy efficient “solar” glass
  • Multi-point locks for improved security
  • Toughened safety glass where required
  • Internal window beading
  • “Wood grain” finishes
  • Available in a range of colours
  • Low Maintenance (no painting!)
  • Check out cheap upvc windows
  • Discounts & Special offers
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Specialised or Bespoke uPVC Casement Window Designs

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Flush Fitting uPVC Casement Windows.

Many homeowners are now choosing to install “flush fitting” casement window designs for their clean lines and modern look.

A normal casement window opening section, when closed, will have a frame that sits “proud” of the main window to which it is attached – in other words the opening window gives a raised profile to the appearance.

With flush fitting casements, when you close the window it sits completely level with the outer main window frame and gives a completely flush surface with no raised sections.

Flush fitting casement windows are not a new idea; they were very popular way back in the 19th Century, well before “lipped” windows became the more prevalent design, sometime in mid-1950’s Britain, but are now making quite a resurgence.

Bay, flush and reversible windows

Reversible UPVC Casement Windows

By means of specialised hinges, the reversible window can be opened in such a way as to effectively spin the window through 180 degrees so that the outside of the window can be easily accessed – great for upper floors or apartment windows.

There are two other popular specialised design variations and these are always made to order and therefore you can refer to them as bespoke products, and they are;

UPVC Bay Windows & UPVC Bow Windows – both of which can make use of the casement as primary design influence.

Bay and Bow windows are “projection windows” in that they extend outwards from the property.  Bow windows extend outwards in a gentle curve, whilst bay windows extend in an angular fashion.

In this way, both the Bow and the Bay add extra space to the room. Read more about bay windows.

Personalising your new uPVC Casement Windows

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There are a lot of things you can do in order to make your new windows look even better. From choosing different colours, to the type of glass or even what type of surface finish to use, is all open to variation – here are some of the options available.


There are 2 ways to achieve colorisation of uPVC, the first is via a spray paint coat, the other is by a process known as foiling (more about colours here)

Spray paint coats are just that – a coat of paint sprayed on, but with additional heat treatment. This is best done in the manufacturing process; however, you can have them sprayed after installation by specialists.

Foiled UPVC Casement windows go through the process at the factory and it involves adding coloured film to the surface of the uPVC and treating it under heat & pressure to bond it to the surface. Foils are very durable and resistant to peel, flake and fading problems.

upvc window colour chart

Glass & Glazing Options -1) appearance

Patterned glassFor sure you will be fitting your new windows with double glazed sealed units as standard, but you can choose the style of glass that goes into the unit.

Plain glass is obviously the most popular choice, but you can add decorative features such as “lead” strips, coloured glass and patterned or obscure glazing.

Frosted glass is used mainly to offer a high degree of privacy for bathroom, shower or toilet windows.

Glass & Glazing Options – 2) energy efficiency & security

cross section upvc windowsAs we mentioned above, double glazed sealed units for uPVC Casement windows come as standard. In order to get even more energy efficiency, you can add some or all of the following options.

  1. Low emissivity glass – can be fitted to one or both panes of the double glazed unit
  2. Argon gas filled cavity – the space between the double glazed panes can be filled with gas to lower heat & cold convection.
  3. Warm edge spacers – these are the strips inside the gap that keep the panes separated. Using warm edge spacers reduces heat transfer.
  4. Triple Glazing – whist it does cost more, using triple glazing increase energy efficiency “across the board”.

In terms of security, in general, a double glazed sealed unit is quite difficult to break without applying a good deal of force, however, by adding toughed glass it will make the window significantly more secure.

Toughened glass can be used on the outside, inside or both sides of the window.

One step up from toughened glass is laminated glass. Exceptionally strong and safe, but it does come with quite a significant price increase over both toughened and standard glass.

Finished Surfaces

dark wood grain upvc casement windowThere are 2 main options when it comes to the finished surface of the window – smooth or wood-grain. Smooth surfaces are the standard finish for the average casement window.

As mentioned previously, uPVC can feature coloured foil finishes however, these foiled finishes can also be textured to recreate the look and feel of genuine timber-grain.

Foiled wood-grain finishes give your windows amazing visual appeal, and are bonded into the surface of the uPVC.

Wood-grains are designed and applied in such a way that they don’t peel, crack, shrink, fade or otherwise deteriorate like a typical coat of paint.

UPVC Casement Window Furniture (hardware)

The furniture, or hardware, for windows really refers to the type of locks, handles or hinges fitted and there is an extended catalogue from which to choose.

For example, you may see reference to handles with a spur, a spade, a spindle, espag or even a fork. All of these window handles will have a key lock fitted.

  1. Cockspur – a simple straight handle
  2. Cranked – has a small offset in the line of the handle
  3. Monkey tail – a handle with a curly section at the end (looks like a monkey tail!)

window handles and furniture

Check with your installer to see which types of handles they stock.

You can also fit movement restrictors, which allow you to partly open the window whilst preventing further opening from both inside or outside (keeps out unwanted guests).

Restrictors are also useful if you have children at home to add a precautionary safety feature.

What are the benefits of fitting uPVC casement windows?

window energy rating labels

Energy Efficient

UPVC Casement windows are available with A++ energy ratings, helping you to manage your heating costs & save money.

How Much do Bay Windows Cost?

Easy Operation

One handed operation means that whenever you want to open or close the windows you don’t have to struggle!

simple to look after

Easy to Look After

All you ever need to do is keep them clean, and lightly lubricate the moving parts one or twice a year – simple.

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Value for Money

Compared to Hardwood or Aluminium, UPVC Casement windows cost less to buy, so you save money.


Safe & Secure

With quality locking handles & multipoint frame locks, you get the peace of mind that comes with high security.

long life span

Guaranteed Quality

UPVC windows come with a guarantee of a long, trouble free, lifespan so you don’t have to worry about more expense later on.

How much do UPVC casement windows cost?

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The final configuration, size and even the number of windows you eventually settle upon is going to make the cost of the work vary quite a bit.

If you are replacing all the windows in your home, you are going to get a better price “per window” than if you are just buying a single unit.

Labour is also another big factor in the cost of installing replacement windows, not only by companies charging different rates, but also by the actual “degree of difficulty” in doing the work itself.

get quotes buttonHowever, to give you a rough idea of what to expect, here are some prices for UPVC Casement Windows.

  • 2 bed terraced house – £2,000 – £3,500
  • 3 bed semi-detached house – £3,500 – £5,000
  • 4 bed detached house – £5,500 – £6,500

On average there are 8 to 10 various sized windows for the typical 3-bedroom semi-detached house and 10 to 12 for a medium sized 4 bedroom house.

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