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Casement Windows

Modern double glazed casement windows.

Maximum thermal efficiency.
Enhanced security features.
Customisable with a range of colours.
20 year guarantee.
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As well as the beautiful looks they will bring to a property in Cumbria or Lancashire, our casement windows will also make your home more secure. The locking systems fitted to them are extremely tough and will be enough to keep your home protected from outside interference.

Grey Extreme UPVC Windows

Explore our casement windows

Kudos to our immensely skilled craftspeople for producing a supreme example of a casement window, done with the aid of the latest technology and prime glazing. Planet put their heart and soul into creating the arresting solution, which you have the option to effortlessly customise.

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Extreme UPVC Casement Windows

Casement windows have been around for what seems like forever and still they continue to enchant homeowners. What is it that’s made them such a persistent favourite? Adaptability of a casement window would be one reason, as would its evidenced timelessness. If you go flush or non-flush, your casement windows can come with top or side openers and whatever requested touches you indicate to us.

As a guaranteed feature in all Planet casement windows is energy-efficient glass, present for the purpose of keeping your house warm and heating bills down. Choose from double glazing or triple glazed windows depending on your budget.

White Extreme UPVC Windows

An extremely wide variety of finishes...

Just because you want UPVC window frames doesn’t mean they have to be coloured white. Planet’s colour palette stretches to endless hues and shades just in case you find that white won’t complement your home or simply isn’t what you want.

Anthracite Grey is well regarded by replacement window buyers, one of the sleekest and modern of all finishes, whilst Chartwell Green similarly earns lots of appeal. In case you’re not aware, Planet is happy for its customers to combine finishes and have dual-coloured windows.

Envisage Flush Windows

A few generations ago, flush casement windows were the overriding window style employed at UK homes and as big admirers of them, we decided to develop our own version of a flush design. The collection has been named ‘Envisage’ and retains the foremost hallmarks of traditional flush windows.

An Envisage window has the same flat external finish, proportions and details of flush windows, convincing you that it is crafted from wood, when in fact, it isn’t. No, it’s UPVC-manufactured, which removes extensive maintenance, such as painting, varnishing etc. and helps Envisage perform to much superior levels.

Envisage Flush Windows

Flush windows featuring authentic finishes...

Faithful to tradition, Planet has curated a colour palette for Envisage that includes finishes originally used on past flush casement windows. Light Oak is a notable example and helps to reinforce the uncanny resemblance Envisage has to classic flush creations.

A feel of an Envisage frame will leave you persuaded that it possesses a timber frame, and its appearance will reiterate this belief. However, not one bit of timber has been utilised to craft it, only the very finest UPVC material.

Eclipse Aluminium Windows

UPVC may look improper at certain homes. If yours would be one of them, a solution would be to select aluminium window frames instead with our Eclipse range. An Eclipse aluminium window has a super-smart aesthetic and performs outstandingly in all facets.

Eclipse is amongst the slimmest window options available, offering abundant glass, which means that your home will receive profuse natural light. Exploit Planet’s design adaptability by requesting Eclipse in whatever size you require.

Eclipse Aluminium Windows

Powder-coated finishes with class...

Our aluminium finishes always astound customers as rarely have they seen such rich and exhilarating window colours. The technique involved in applying the finishes is an 11-stage power-coating process. Multiple methods were trialled to achieve the perfect aluminium finish, and this is the one that produces the best results.

It is possible to have aluminium mimic wooden frames, entailing a sublimation strategy, which involves a good amount of time to execute the desired woodgrain. A woodgrain-finished aluminium window is almost an exact replica of genuine timber windows. Assess the colour possibilities and make your choice.

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Why choose our double glazed casement windows?

Casement windows give you everything – first-rate thermal efficiency, reliable security and colossal style. Planet engineers them to spectacularly high standards, something we’ve been doing for decades now.

20 year guarantee on window collections

Our most energy efficient window collections

Showroom in Kendal, Cumbria

Manufactured in Britain

Premium locks & hardware

Broad range of colours

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Enduring designs that uphold safety...

Replacement casement windows secured via Planet have a multi-chamber construction, designed to keep heat loss under control and restrain external noise invasion. The weatherproof frame needs minimal preservation and will usher in a cosier living environment for inhabitants.

And the benefits don’t end there! Durability is assured thanks to the high-impact frames containing fusion-welded joints and mitred corners. Should you request side-opening windows, the windows will have special egress hinges, allowing them to be opened a full 90 degrees in the event of an emergency. They live up to their “easy clean” nature too, being straightforward to maintain.

Grey UPVC Casement Windows

Casement windows security

Our safety-first approach compels us to create high-security casement windows, as we want them to make you feel safe in your space. Learn about the many security features of the windows.

Cranked Window Handles

Cranked Window Handles

Our cleverly moulded cranked handles combine practicality with elegance, uncomplicating the exercise of opening and closing the designs.

Extreme Window Hinge Bolts

Window Hinge Bolts

Forced window entries are inconceivable as there are extra-resilient hinge bolts to overcome. They won’t shift even when subjected to intense pressure.

Herculean Window Hinges

Herculean Window Hinges

A lifetime of protection will come from the heavy-duty herculean hinges, essential for load-bearing support and capable of resisting crowbar attacks.

Multiple Window Locking Systems

Multi Locking Mechanisms

State-of-the-art locking mechanisms are bad news for wannabe intruders, who have next to no chance of breaking them to gain accessibility to a house.

Premium window accessories bespoke to you

After settling on casements as your favoured style, your next job is to accessorise them with decorative and functional accessories. A handle and some glazing will obviously be critical, and there’s plenty more touches to magnify their elegance.

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Ergonomic handles for comfort...

Our handles can stand up to years of prolific usage, refusing to diminish in appearance or performance. Choose between one of multiple traditional and contemporary handles, all abundantly handsome.

A pretty handle is all well and good though. What it really also needs to be is dependable in terms of security. Have no doubt that these handles are mega resilient.

Engaging colours that underline the windows’ presence...

Move on to the nominating of a handle colour once your hardware choices have been settled on. Planet’s handles can adorn a series of alluring-coloured effects – ask for white, black, chrome or gold window hardware.

No matter how often the handles are used, no signs of rusting, flaking or wear and tear will become apparent, testament to just how hard-wearing our finishes are.

Premium glazing for your casement windows...

Whichever glazing type you get, anticipate the glass funnelling maximum light into your home, boosting aesthetics and keeping your interior warm. If clear glazing won’t suffice in certain areas of the house, ask us about privacy glazing, which doesn’t have the same translucence.

Aside from the exceptional insulation offered by our glazing, it will also provide an element of soundproofing, a relief to anyone residing in a noisy neighbourhood. Seek advice from a Planet advisor if you experience difficulty with glazing selection.

Astragal, Georgian or leaded bars...

Get some added detail into our casement windows with traditional leaded, astragal or Georgian bars, sure to amplify the effect they have once assimilated into your property. Planet will let you dictate how the bars are arranged and organised.

Casements with bar detailing are so impactful and will almost certainly attract lots of positive feedback from home visitors, filling you with pride.

Aluminium Windows

Did you know our windows & doors come with a 20 year guarantee?

That’s double what most other double glazing companies offer for their windows & doors – giving you total peace of mind.

Have you explored our front & back doors to complement your new windows?

New casement windows deserve doors that live up to the same standard. Our stylish front and back doors are designed to complement your new casement windows perfectly – offering a seamless look, improved energy efficiency, and enhanced security across your entire home.

Planet customer reviews

Don’t just take our word for it, read a selection of reviews from our customers and their experiences with Planet.

Request your free quote today

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Want to speak with an advisor? Give us a call on 0800 612 2255

Our friendly team will be pleased to help with any questions you may have.
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