Fixed windows are divided into three distinct ranges: Extreme, Envisage, and Eclipse. Extreme and Envisage are both made out of UPVC, while Eclipse is made out of aluminium. While each range boasts its own unique design features, they all share the same high standards of performance, energy efficiency, and security.

Explore our fixed windows
Non-opening fixed windows place the focus on the view, offering clear, unobstructed sights of the outdoors while allowing plenty of natural light to fill your home.
UPVC Fixed Windows
Enjoy the beautifully framed views offered by a fixed window, all while benefiting from the inward warmth provided by its energy-efficient glazing. Fixed windows are cost-effective, available in larger sizes than many other styles, and their lack of moving parts ensures minimal maintenance.
Installing fixed windows will instantly enhance your home’s insulation, a benefit that lasts for the window’s entire lifespan. During your order consultation, our advisor will discuss whether you prefer double or triple glazing, both of which offer increased security for your home.

A colour range that’s rich, varied, and full of possibilities...
White windows complement most homes, but if they’re not the right fit for your property or personal preferences, Planet offers a wide range of alternative hues and tones to choose from.
Popular options include the sleek Anthracite Grey, bold Matt Black, and the timelessly elegant Chartwell Green. For added flexibility, consider our dual-colour option, allowing you to have different finishes inside and out.
Flush Fixed Windows
Timber flush casements were the most popular window style in the UK over a century ago, and they inspired us to create the Envisage window – a modern tribute crafted from a durable UPVC profile. By combining traditional design principles with advanced technology, our craftspeople have reimagined this classic style for today’s homes.
Envisage retains the signature flat finish of original flush windows but incorporates modern advancements to enhance security and energy efficiency. At first glance, you’ll be convinced it’s made of timber.

Flush windows featuring authentic finishes...
To ensure Envisage could stand as a true imitation of a traditional flush casement window, we carefully developed finishes that capture the authenticity of the originals. Light Oak, in particular, highlights how convincingly Envisage replicates the appearance of timber.
Run your hand over the frame and finish—you’ll notice it feels remarkably like wood. However, rest assured, no timber has been used in crafting Envisage. This lack of wood means maintenance is effortless, requiring only a quick wipe with a damp cloth to keep it looking pristine.
Aluminium Fixed Windows
UPVC might not be the ideal match for your home, making aluminium crafted fixed windows from the Eclipse aluminium range a more fitting choice. Sleek, strong, and exceptionally durable, these aluminium designs are built to impress.
The Eclipse range features some of the slimmest aluminium frames available, offering a larger glazed area that delivers uninterrupted views. Fixed windows are all about bringing the outside in, creating a seamless connection between your home and its surroundings.

Powder-coated finishes with class...
Eclipse aluminium frames boast vivid coloured finishes achieved through an advanced 11-stage powder-coating process, ensuring a striking and enduring appearance. This method has proven to be the most effective for creating eye-catching finishes that stand out.
For those drawn to the timeless charm of wood, our sublimated finishes offer a stunning alternative. Designed to replicate natural timber, these finishes feature realistic grains and textures, providing the authentic look and feel of wood on durable aluminium frames.
Request your free window & door quote
Simply fill in your details for your free, no obligation quotation, and click “Get Quote”
"*" indicates required fields
Why choose our double glazed fixed frame windows?
Investing in fixed windows from Planet is a decision made in your best interest if exceptional security and thermal insulation are priorities. Designed to provide lasting benefits for years to come, they offer reliable performance and can help you save significantly on energy costs.
20 year guarantee on window collections
Our most energy efficient window collections
Showroom in Kendal, Cumbria
Manufactured in Britain
Premium & robust materials
Broad range of colours
Need more inspiration? request a brochure
Simply select the brochure(s) you would like to browse, fill in your details, and then click ‘Download’.
Step 1 – Please select the brochure(s) you would like:
"*" indicates required fields
Our customers rely on our fixed windows for good reason..
Take a closer look at a fixed window to fully appreciate its many features. With a multi-chambered profile, it effectively blocks out external noise and minimises heat loss. Security is also a top priority, as the fusion-welded joints and corners make it incredibly difficult for intruders to break in.
Our 20 year guarantee speaks volumes about the lasting quality of these fixed windows – and you can expect them to perform well beyond that.

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 fixed windows deserve doors that live up to the same standard. Our stylish front and back doors are designed to complement your new feature 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
Simply fill in your details for your free, no obligation quotation, and click “Get Quote”
"*" indicates required fields