How Long Do UPVC Windows Last? What Affects Their Lifespan?

UPVC windows are often chosen for their low maintenance, weather resistance, thermal insulation and long service life. But how long can you actually expect UPVC windows to last?
A good-quality UPVC window can typically remain functional for 20 years or more, while some industry life-cycle assessments use service-life assumptions of around 40 years for the complete plastic window.
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