ThermEco™ Sash 42 Casement Window

The Alsysco ThermEco™ Sash 42 Casement Window is an affordable and reliable aluminium window that is durable and corrosion resistant.

Alsysco Casement Windows ARE PERFECT FOR:
Balconies & Patios
Casement Windows
Living Spaces
Office Spaces


The Alsysco ThermEco™ Sash 42 Casement Window
complies with AAAMSA A4 design standards.

Alsysco Aluminium Systems are tested according to various industry standards for the purpose of safety. You can have peace of mind that our systems are reliable and will perform as expected, even in the harsh African environment. Learn more about AAAMSA here.

ThermEco™ Resources

The Alsysco ThermEco™ Sash 42 Casement Window offers high performance 16mm stainless steel friction stays allow for larger than normal sash sizes. LEARN MORE:

Casement Windows FAQ

A casement window is a window that is hinged at the side or the top and will open outwards. They also allow having multiple configurations & fixed panels.

Casement windows are among the safest windows on the market thanks to their airtight seal and multi-point locking system. These windows can also serve as egress windows, serving as an exit in case of fire.

Yes, they require low maintenance and can be easily maintained using our guidelines provided.

A casement window allows for glass replacement and can be done by your fabricator/installer.

Yes, we offer the system in a powder coating finish that is available in a range of architectural colours.

Yes, they are suitable replacements and will be able to match most standard configurations of the replacement.

Alsysco casement profiles are much thicker and designed with hollow cavities on profiles that require drainage.

Thermeco lite 31 A3 PCR

ThermEco sash 42 A4 PCR

Multi-point lock available only on ThermEco sash 42

Thermeco lite 31: max Width 1200 max Height 1200 max Weight 26 kg

Thermeco sash 42: max Width 1800 max Height 1800 max Weight 120 kg

Thermeco lite 31: permanent restrictor available

Thermeco sash 42: detachable restrictor available with key for maintenance

Yes and Alsysco has specified the type of handle to be used on these systems

We have PVC gaskets sealing the windows and drainage on the outer frame & sash

Thermeco lite 31 can accommodate 18mm to 20mm double-glazed units

Thermeco sash 42 can accomodate18 to 28mm double-glazed units

We have a list of accredited fabricators on the Alsysco website.

Be Inspired by Alsysco Systems

Alsysco aluminium windows and doors will transform your home into a space that reflects your style. Our systems are available in a range of popular architectural colours and finishes to match your personal preference.


Elevate your home with Alsysco Aluminium Systems:

Aluminium is the smart choice for your home because it is reliable, durable and looks great. Discover why you should choose Alsysco aluminium: Read more >>.
Aluminium Systems
Increase the value of your home

Aluminium sliding windows and doors, balustrades and insect screens add retail value to your home.

Aluminium Systems
Easy Maintenance

Alsysco systems require low maintenance, reducing upkeep costs.

Aluminium Systems