About Company

Performance Windows is a national replacement-window company that simplifies and speeds up the window-buying and installation process. The company supplies luxury, energy-efficient replacement windows manufactured by Alside, provides custom measurement and production, and typically completes installations in one day while offering flexible payment options. Performance Windows emphasizes lowering customer costs compared with traditional brands, improving home comfort and energy efficiency, and backing products with Alside’s Limited Lifetime Warranty. The company operates through local teams across many U.S. markets, follows a no-pressure sales approach, and has completed over 10,000 installations with strong customer testimonials.

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