Marvin Ultrex Fiberglass Window Experts!

Gravina's Window Center of Littleton is THE expert in the best fiberglass window on the market - Infinity from Marvin!  

ULTREX PERFORMANCE

Cold, heat, and time – no worries

Ultrex resists the ravages of cold, heat, time and pressure to provide the most worry-free windows and doors available today. While vinyl can distort in extreme heat or streak and crack in the fluctuating temperatures, Infinity products offer the highest level of performance and are virtually maintenance-free.

 

Low thermal expansion means a stronger seal

Ultrex has an extremely low thermal expansion rate, which keeps the window stable and weathertight, reducing the risk of seal failures and air leakage into your home.

Tired of windows that are difficult to operate?

The low expansion of Ultrex means Infinity Windows resist sticking, swelling, and warping, providing easy operation for the life of the window.

 

 

Tired of high-maintenance windows?

The low expansion of Ultrex means Infinity’s patented finish stays looking like new and is virtually maintenance free. It resists discoloring, warping, rotting, corrosion, denting, rust and doesn’t require sanding, scraping, or painting.