With everything that makes our UPVC range so popular, but with a little extra stripped-back charm.

Envisage Flush Casement Windows are the perfect contemporary replacement windows for traditional timber windows.

The trim and elegant lines offered by the Envisage Flush Casement window are reminiscent of the styling you would commonly see in traditional timber windows. Without any of the ‘bulk’ that can become associated with standard casement, our Envisage flush casement sits neatly against its frame, both inside and out, for a graceful appearance. Many Permaframe customers have chosen our Envisage flush windows to introduce a refined, sleek aesthetic in their Somerset home.

Oak Envisage Flush Windows

You will also notice that the opening lights do not stand proud of the frame, exactly as it would have been if they had been created in a carpenter’s worktop years ago.

So that our Envisage flush windows are completely faithful to authentic flush casements, we supply them in a wide range of period finishes and hardware to ensure they match the character of your home.

Oak Envisage Flush Windows
Grey Envisage Flush Windows
About our Envisage Flush Windows

Our Envisage flush windows boast modern performance that will benefit your home in terms of security and energy efficiency, typical of the UPVC material.

Check out the features of our best-selling Envisage flush windows by clicking on the hotspots.

Envisage Flush Window

Envisage Locking

Featuring our robust shootbolt envisage locking system, you can rest assured you Envisage window will keep you home and family protected from the threat of break-ins.

Envisage Glass

Draughts and cold spots are a thing of the past. We’ve used smart design and high-performance next generation glass to guarantee your warmth and comfort. So, all you need to worry about is which style and colour to choose.

Envisage Frame

Appealing to the perfectionist in you, the perfectly balanced symmetrical panes make for a clean, flush and minimalist finish. Multiple astragal bars allow you to create a design that’s ideally suited for traditional properties.

Envisage Hinge

Easy-clean Friction Stay Hinges with smooth operation and anti-crowbar technology to prevent would-be intruders from accessing your home.

Envisage Handles

Whether you’re matching handles to a modern new-build or a traditional cottage property, you’ll find the Envisage hardware range is well positioned to meet even the most unique of needs.
The solution to expensive heating bills…

With a coating within the glass of our Envisage flush windows, you can be confident they will help drive down costs. To create these outstanding windows, modern technology has been ultilised, so you can enjoy a warmer and more energy efficient home.

Envisage Flush Windows
Envisage Flush Windows
Envisage Flush Windows


Never underestimate the impact the colour finish, glazing and hardware can make on your Envisage flush windows. We recommend you take your time making your decision and request our advice if you are unsure.

Glazing will play a part in making your home feel comfortably warm…

Our intelligent glazing is second to none. Within the glass, the sealed units are filled with gases and spacers to form a thermal barrier between warmth and cold air. Once our advanced windows are installed, you will no longer feel the need to constantly turn up your heating systems throughout winter. Our team of advisors can offer guidance on which glazing is right for you. We will work within your budget to help you reduce your high energy costs.

The final details make a big difference…

At Permaframe, we believe performance doesn’t have to come at the cost of style and that’s why every homeowner in Somerset will be delighted with our hardware range. Our collection of traditional and modern handles and other pieces of hardware will introduce a stylish flair to your windows, making them a true focal point of your home.


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Want to speak with an Advisor? Give us a call on 01373 794000

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


We invite you to join us at our showroom in Frome, to browse our many products in person and speak with our team of advisors and designers about your next home improvement project.