uPVC or aluminium windows?
A practical comparison of uPVC and aluminium windows for trade customers.
What is the main difference?
uPVC is lower cost and well insulated. Aluminium is stiffer, so frames can be slimmer, and it is powder coated in any RAL colour.
Which costs more?
Aluminium windows generally cost more than uPVC for the same size. Our guide price ranges show the difference.
Which is better for extensions?
Aluminium is often chosen for extensions and contemporary homes because of the slim sightlines and colour choice, especially alongside aluminium bifold or sliding doors.
Which is better for replacement work?
uPVC casements cover most replacement jobs on houses and flats because of cost, insulation and the range of foils and woodgrains.
This guide is general information for trade customers. The person carrying out the work remains responsible for meeting the building regulations and any planning requirements for the specific job.