K Construction did a really good job of replacing my 160 year old window sashes with new double glazed units even though one window had a curved top.
The new windows slide really easily in the frames and the new brass hardware catches and pulley wheels are a major improvement. Your tradesmen worked late to finish the installation and left my flat very clean. I found it relatively easy to give the new windows and refurbished cases the final gloss painting.
Many thanks for this. Very impressive window upgrade!