Aluminium Windows Choices Explained

As you may know The Trade Village offer a wide range of aluminium window solutions. The question is though, how do you know which one to choose?

This quick guide will show you the key differences between each window we offer, and help you decide which may be best for your project.

Aluminium is one of the biggest growth areas in our industry, so now is the perfect time to embrace this product and start offering it to your customers. Not only does aluminium afford you much better margins than uPVC, it’s also a superior product that will result in less callbacks.

That’s a win-win for any installer!

Here’s a run down of the products currently on offer:

Reynaers SL68 Slimline Windows

The impressive Reynaers slimline aluminium window was specifically designed for the UK retail market, so it should tick all of the boxes. Developed by an expert team at Reynaers world renowned design and test facility, the brief to create the perfect window for discerning UK homeowners has resulted in the SL68 aluminium window.

It might not be the catchiest name, but the product is everything you would expect from a manufacturer with such a stellar reputation. The windows are slimline, sleek, and look effortlessly modern. All of the sight-lines are finished off in a very clean fashion, and the energy rating is superb (U values as low as 1.0 possible).

If you’re looking for an energy efficient window with minimal sight-lines, the SL68 is the perfect option.


  • High-end windows that are manufactured to the highest possible quality standards
  • Very contemporary, attractive finish that is perfect for modern homes
  • Impressive U value as low as 1.0 (with triple glazing)


  • Price point may not be suitable for some customers


Smart Alitherm 600 (Opal Living) Windows

Opal Living windows are our standard and most popular Smart aluminium window offering, suitable for both residential and commercial projects. The best thing about this window system is that it’s available in a choice of three sash options – Ovolo, Chamfered or Square so there is a style to suit every discerning homeowner.

It can achieve a U value of 1.3 and a window energy rating B. With the ultra slim frames, this window system allows more natural light to flood into the room and give the best views to the outdoors. Available in any colour and a range of textured finishes.

The Alitherm 600 is a well-priced aluminium window that makes it a great option for customers on limited budgets or transitioning from uPVC to an aluminium upgrade.


  • Our most competitively priced aluminium window option
  • Choice of 3 sash options
  • Slim outer frames


  • Externally beaded as standard (internal beading available at slight surcharge)

Smart Alitherm 800 (Opal Elegance) Windows

Opal Elegance windows have a flush sash finish and are the ultimate window for clean and modern aesthetics. The sash sits on the same plane as the rest of the window creating a flush, in-line cutting-edge look to this high performance window system.

Any window designs with fixed panes will be manufactured with a dummy sash, which ensures all glass lines run through perfectly. This is perfect for customers who want a detailed, uniform look.

The Alitherm 800 window is the perfect choice for customers who have embraced the popular trend of flush sash windows.


  • Flush sash window which is a rising trend with discerning homeowners
  • All glass lines line through exactly for a uniform, modern appearance 
  • Profiles have the option for either flat, square or chamfered edges.


  • Flush appearance reduces the glass area due to the dummy vents, so not the right choice for homeowners who want slimline profiles or larger glass area 

Smart Alitherm Heritage (Opal Heritage) Windows

Opal Heritage windows are the ideal window system for heritage applications such as listed building renovations where planning regulations demand a like-for-like steel replacement window with optimum thermal performance.

They are a traditional looking window and are often requested for cottage style properties. This system can also be used for single and double french doors to create a slimline, contemporary alternative.

For more period or traditional properties, the Alitherm Heritage window is perfectly suited.


  • Designed as a direct replacement for steel windows
  • Perfect for traditional properties
  • Wide range of complimentary hardware


  • May not be the best option for modern homes

Smart Eco Futural (Opal Tilt & Turn) Windows

Opal Tilt & Turn windows are high performance windows suitable for use as tilt & turn, pivot casement, fixed and open out casement windows. They are most common for commercial applications  but are also a great alternative for residential properties too.

The obvious benefit of tilt and turn windows is that they can be made in larger sizes that standard casement windows. These come in handy when a customer wants sashes bigger than the maximum, or a full height floor to ceiling window that can tilt for ventilation.

These windows are also a good choice for first floor or balcony windows, where they can be specified to tilt only. This will ensure the windows are compliant with current building regulations.

The Smart Tilt & Turn window is a versatile product that is perfect for both residential and commercial projects.


  • Well suited for a wide range of commercial and residential uses
  • Can achieve much larger sizes than standard windows, great if the customer wants oversized opening sashes
  • Tilt only function for balcony and upper level windows


  • More costly than standard casement windows
  • Opening inwards sashes not always suitable


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