How much do double glazed window materials cost? uPVC casement windows are very popular (lena_zajchikova - stock.adobe.com) ...

Kolbe Windows & Doors manufactures custom windows and doors. It produces high-performance windows and doors, focusing on custom craftmanship, energy efficiency and pleasing designs.

Building a greenhouse can be inexpensive if you use recycled doors or windows. And a small DIY greenhouse is a great way to grow a few vegetables right through the coldest months of the year.