From U-values to frame materials, here's what actually matters when you're comparing double glazing quotes in West London.
Choosing double glazing is more than picking a frame colour. The right windows will cut your energy bills, quiet a noisy street, and lift the kerb appeal of your home for decades.
What to look for Energy ratings run from A++ down to E. For most West London homes we recommend A-rated units as the sweet spot between cost and performance. Look at the U-value on the spec sheet — anything under 1.4 W/m²K is excellent for a whole window.
uPVC vs aluminium uPVC is warm, well-insulated and cost-effective. Aluminium gives you slim sightlines and a modern, architectural look — ideal for extensions and period conversions. Both can be A-rated when specified correctly.
Installation matters A great window fitted badly will leak heat, air and money. Always check the installer is FENSA registered and ask for references from recent local jobs.
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