Marvin Fiberglass Windows Seattle | Signature Window
Why INFINITY from MARVIN? Why Should You Do It Now? Why Choose Us?

INFINITY from MARVIN Fiberglass Windows…

Quite Possibly The World's Only Perfect Replacement Window for Seattle & The Entire Pacific Northwest.

Dollar-for-Dollar, Apples-to-Apples, Our Fiberglass Replacement Windows Beat All Other Windows On The Market Today… Hands Down—It's Not Even Close. Here's Why.

Infinity Windows

Infinity Windows

Made From Our Proprietary Ultrex Fiberglass — It's 8x stronger than vinyl, 3.5x stronger than wood/vinyl composites (Fibrex), and one square inch can support 34,000 pounds!

Our Fiberglass windows have a 38% longer useful life expectancy than vinyl – that means that for all practical purposes, you'll probably never have to replace your windows again…ever. That alone will save you 10's of thousands of dollars.

Our patented Ultrex Fiberglass — has extremely low expansion and contraction rates… this provides easy operation for the life of the window and seals that are going to last for the life of your home. True energy efficiency is measured over the life of the window and not when a window is "fresh out of the box." Your windows have to be just as energy efficient as the day you installed them whether it has been 10, 20, or even 30 years.

As strong as low carbon steel – this strength keeps windows square, level, plumb and true. That means no warping, cracking, or premature failure of the frame. It's a fact… Pacific Northwest weather is brutal on windows. The constant hot and cold causes contraction and expansion that destroys lesser frames by causing cracks… usually in the corners at the joints. Out Ultrex is so strong…we guarantee it, for life.

Virtually maintenance free – you won't spend money needlessly trying to upkeep and maintain our windows.

Manufactured with the base material of silica sand — an abundant natural resource and NON-TOXIC… unlike vinyl that needs massive amounts of petroleum and other harmful chemicals. If you're concerned about your carbon footprint, Infinity Brand Windows are the way to go.

Made with Intricate profiles that replicate the look of traditional wood windows – in short, our windows are absolutely stunning. You can get the beauty of wood without all the maintenance.

Infinity Windows - Narrow Profiles

Narrow profiles — because of its exceptional strength, Infinity window frames are smaller allowing for more visible glass area and expanded views

Long-term stability — reduces the risk of seal failures and air leakage through the windows.

Marvin Fiberglass Windows

Patented, mechanically bonded inline acrylic finish — is up to 3x thicker than competitive finishes, providing superior resistance to discoloring, scratching, and denting. First and only window frame on AAMA's (American Architectural Manufacturer's Association) verified components list complying to 624-10 & 625-10. This means Ultrex was tested with acid, baked in an oven, and exposed to extremely cold temperatures and did not have any corrosion, blistering, or peeling. Ultrex performed in cold temperatures of -40 to hot temperatures up to 350 degrees with no expansion or contraction. Ultrex emits no VOC's (Volatile Organic Compounds).