Flush Sash Windows

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Flush Sash Windows

With a flush casement, the opening part of the window sits flush in the frame.

The simple lines are ideal for older, heritage properties, but these windows also cut a dash with more contemporary and minimalist architectural styles. The design classic with its outwards opening panes will never go out of style.

From a simple arrangement with a single opener to a beautiful bay, flush casement windows suit so many homes and building types. And here’s the real beauty – Optima casements are adaptable.

You choose the layout to suit your home: the size and position of the opening lights, the location of handles and all the finishing touches.

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Modern windows, with traditional features

We’ll admit that we’ve copied the appearance of the original, timber flush casements, but the thermal performance and weather protection of our PVC-U frames is up to 21st Century standards.

There’s a simple chamfered shape to the exterior and your choice of shape for the interior to suit your home’s décor and your personal style.

The Optima Flush Casement suite includes all the extras required to recreate period details, and because every component has been purpose made, the proportions are a perfect match. We’ve selected period colours and sourced matching hardware including dummy peg stays and monkey-tail handles.

We’ve created a beautiful blend of traditional appearance and impressive performance that make the windows very easy to live while remaining attractive.

Our reassurance to you

The Optima system is purpose made, tested and accredited to British and European Standards to meet all the requirements for PVC-U windows and doors. It is made here, in the UK, by Profile22, a business which employs over 2,000 people, including some of the most innovative and experienced experts in PVC-U building products.

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What our customers have to say

"Top service from start to finish. Rhodri quoted me about 3 years ago and when phoned back to get updated quote 3 years on he was spot on and updated quote for me very quickly and still the best price I had.

Placing order for the windows were hassle free. Barry and Mike came fit windows they both were great couldn't do enough great job thanks all involved."

Nick Williams

"We used Ultimate to provide and fit a Solidor front door, side panels and a window in a new front extension. After having the "big three" round to quote first, it was a refreshing change just to be given a price.

No inflated prices and haggling down as has become the norm in the double-glazing industry. Job was carried out cleanly with no delays and no fuss. Door looks great. We're going to use them again for replacing a set of patio doors."

Kevin Wallace

"Great staff and brilliant value and a good selection, I would use them again. Will be a while as they did such a good job the first time."

Grant Wilkins

"I would like to say a huge thank you to Karl and Andrew who fitted a French door at Cwrt Pegasus in Cardiff today. They have done an excellent job and I'm extremely pleased. As the manager of the development I have dealt with a lot of contractors and they stand head and shoulders above.

Friendly, polite, informative and experienced. I wouldn't hesitate in using them again and recommending. A very happy resident and a very happy manager."

Angela Burford

"We are so pleased that we chose this family run business to install our new doors. From the initial visit by Craig to the installation undertaken by Andrew and Carl, the standard and professionalism has been exemplary.

It is obvious that this company take great pride in their work and that customer satisfaction is important to them. An excellent company to deal with."

Charles Cann

"I've used Ultimate Windows a number of times and have always found the product, installation and installers excellent. I have recommended them to neighbours and friends. All that have used them agree with my assessment of their high standards."

Alan Williams