Fiberglass Windows Costs

Fiberglass windows costs range from $350 to $1,000 fully installed for a normal sized opening. Fiberglass windows are a more expensive option than vinyl and are generally considered a slightly nicer and better overall looking window than vinyl. They are also more expensive.

Fiberglass Window Basics

Most conusmers will have a difficult time distinguishing fiberglass from vinyl windows. Both are of course inorganic materials and have a similar texture and look to them. Fiberglass is a great material for window frames, arguably the best in terms of energy efficiency. They are strong and durable, although they will typically run 20% to 30% more than a comparable vinyl window. Fiberglass is also sometimes used as an exterior cladding on wood windows.

Budget Prices

Budget fiberglass window prices will run $350 to $500 fully installed and will usually be from a local or regional company, as opposed to a larger national manufacturer. This is not to say that smaller companies produce less well made windows, but typically consumers get a better warranty and a stronger company that should stand behind their products and will be less likely to go out of business (this happened to quite a few window companies during the recession years of 2009 - 2012).

Mid Range Costs

Mid range fiberglass window costs will run $500 to $700 fully installed and will usually be from a larger manufacturer. The mid range price point products will typically have less of the bells and whistles of the more expensive models. There may be less options in terms of custom features and upgrades as well. Sample brands and models at this price point include...

Milgard Ultra
Marvin Integrity

Premium Pricing

Premium fiberglass window prices will run $700 to $1,000 fully installed and will usually be from a well known manufacturer and will include all the bells and whistles that drive up the per window price. This includes an upgraded glass package, better spacer, frame fills, a reinforced sill and custom exterior or interior frame colors and textures. Sample brands and models at this price point include...

Pella Impervia
Marvin Infinity
Inline Fiberglass Windows