Hello, we are currently having our old timber windows replaced with aluminium rather than pvc as we want a slim profile without the upkeep of timber. Can anyone recommend a good aluminium window manufacturer as I am finding it hard to compare products
We are have so far been quoted for 2 systems:
Smarts alitherm 300 which I think is made by sternfenser www.sussexaluminiumsystems.co.uk/wp-content/uploads/2018/06/DATA-SHEET_Alitherm_Series_IMSALS.201504.pdf
and Cortizo cor60 www.cortizo.com/en/sistemas/ver/3/cor-60-rpt.html
The coritzo quote is coming out a lot cheaper but I cannot work out if the product is any better. We want a frame which is as slim as possible.
Does anyone have any experience of either of the above or are there any other recommended manufacturers?