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Casement Windows

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Casement Windows

Heatseal’s range of Casement Windows allow for maximum ventilation throughout the home.

Heatseal’s range of uPVC casement windows open outwards like a door to a around 45 degrees and allow for maximum ventilation throughout the home. They are a popular choice for older style properties but are also well suited for newer homes as they can be manufactured in a wide range of configurations. They are a good choice for fire escape purposes and are available with retractable fly screens.

Our Range of Colours and Finishes

Our Range of Colours and Finishes

Anthracite (Grey), Light Oak (Timber Effect), Cream, White

uPVC Double Glazed Windows Specifications

uPVC Double Glazed Windows Specifications

  • 5 chambered, highly energy efficient profile
  • low line gaskets and weatherseals
  • steel reinforced frames
  • high security multi-point locking systems
  • stainless steel hinges
  • internally glazed for added security
  • key locking handles
  • virtually maintenance free
  • range of glazing options available
  • non combustable frames suitable for bushfire prone areas

See What 100s Of Our Happy Customers Say:

5.0
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Stasia T. profile pictureStasia T.
01:11 29 Jun 25
Paul and his team recently installed a lift and glide door and windows for our whole house. They are so beautiful and have made an amazing difference to the look of our home. The lift and glide door is absolutely stunning! They were so professional right from the first meeting, to scheduling and through to installation. We were very impressed and we highly recommend Paul and the Heatseal Double Glazing team.
George K. profile pictureGeorge K.
04:43 10 Jun 25
High quality product, and high quality service and communication. Really pleased with everything that Paul and Callum have been able to do for us. Highly recommend.
ben h profile pictureben h
04:46 15 May 25
If you're looking for an insanely solid windows and frames to sound proof or insulate your house then look no further. These guys are absolutely amazing to say the least. Their products are also well and truly above and beyond what you'd expect and the entire process has been nothing but amazing. Can't thank the team enough for all their work.

As far as my use case goes, I have quite a large hifi and seperate cinema system which can get insanely loud so I needed some serious glass to help keep the noise contained and this goes above what I was expecting. Anyone who's serious about their cinema needs to give these guys a call.
Joan C. profile pictureJoan C.
02:13 31 Jan 25
We had Heatseal install windows and doors at our previous home and we knew that the double glazing worked and was very efficient. We have found in our new home that the early morning temperature in the lounge area has been reduced by a good 5 - 10 degrees due to the new windows. Nathan, who did the job, was very efficient, a clean worker, friendly and eagerly helped us move furniture. 10/10 for the whole team.
Chelsea J. profile pictureChelsea J.
23:52 30 Jan 25
10/10 - would recommend HeatSeal to all family and friends - and have done so.

Price - affordable and competitive quote. HeatSeal was the only company open to completing smaller orders (not an entire new house build).

Innovative options - HeatSeal has the option of uPVC frames and double glazing.

Customer Service - Professional and friendly customer service by entire team.

Office staff and invoicing - simple and easy invoicing with instalments and quick and friendly response times by admin team.

Quoting staff - Professional and friendly. Explained works options in clear and simple terms to easily understand.

Trades - Set timeframes and met expectations. Clear communication throughout. Window was broken and boarded up - HeatSeal went above and beyond to complete works as soon as possible because of this. Final result - exceeded expectations, looks great!
El B. profile pictureEl B.
01:52 22 Jan 25
We’ve had several jobs undertaken by Heatseal, from replacement of several of our window frames and a door cut into a wall to access a new outdoor patio area.

Regarding the door, we went in wanting a French door but were unable to go with this due to space/engineering challenges. Paul went through our options to get something that was suitable for our needs and he has a sixth sense to provide a product that went above and beyond what I had imagined we’d end up with.

With our windows, we had our hearts set on the European style tilt and turn frames, something that’s a rarity in Australia and Heatseal were one of the few installers that offer this option. Not the cheapest way to go, but the quality and functionality was well worth it.

I can’t recommend highly enough the level of quality and service from Heatseal.
Christine A. profile pictureChristine A.
05:41 26 Nov 24
Absolutely fantastic service from beginning to end. Heatseal have a second to none communication style, impeccable service and excellent craftsmanship.
So happy.
Craig B. profile pictureCraig B.
02:29 11 Oct 24
After considering upgrading our older windows in the kids bedrooms to double glazed for years, experiencing the Bunbury tornado in 2024 quickly made that decision immediate. And what a shame we hadn't done it 10 years ago... the noise reduction, heat insulation is truly remarkable and the kids are now back sleeping through the night in their own beds. The fitting to the older frames was seamless, look great and all round service has been excellent. A real game changer for us, thanks Heatseal Bunbury
Caroline F. profile pictureCaroline F.
11:13 16 Sep 24
Fantastic after sales service! We had a minor issue and it was dealt with very rapidly by the Heatseal team. Thanks Paul.
Caroline & Greg
tim H. profile picturetim H.
09:24 18 Aug 24
We have purchased new windows and doors from Heatseal for our revovation/extension. We absolutely love the feel the windows give our home. Really happy we made the decision to go with Heatseal. Paul and all of his staff have made the process so easy and their customer service is above and beyond. Its so refreshing to deal with a company that provides quality product and top service. Thanks to all the team!
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