Fiberglass Window Costs
Fiberglass window costs range from $300 to $900 per window installed. This is a big range - let's say a good fiberglass unit can be installed for $650 - this would be for a Marvin Infinity with no upgrades and nothing too complicated with the installation. Fiberglass is an excellent option for homeowners who want a window that performs well, likes the look of wood but can't afford a woodclad option and/or doesn't want to deal with have the maintenance issues that go along with wood frames.
Basics Of Fiberglass Windows
Fiberglass windows are typically composite type products, meaning they are mostly fiberglass plus other materials to create a strong and durable frame. They can be made to look remarkable similar to wood, but with much greater strength and insulation properties than wood. Their performance numbers are probably not as good as a high end vinyl window, although there is debate whether they are better in comparison as the years go by (and the vinyl numbers go down).
Price: $300 to $900 installed
Product Prices: $250 to $650 (Window Only)
Builder Grade: $250 to $350
Mid Range: $350 to $500
Premium: $500 to $650
Pricing On Installation: $50 to $250
Simple inserts will run $50 to $75, while full tear outs can go as high as $250 per opening. The only way to really get the cost of installation for your project is to get some bids from local contractors and see how they price it out. Don't just get one bid, make sure you have three or four bids from different companies to make sure the install price is reasonable and in line with the others.
Inserts: $50 to $75 an opening
Standard: $100 to $150 an opening
Replacement On An Historic Home: $175 to $200 an opening
Full Frame / Tear Outs: $175 to $250 an opening
Completed Project Prices
Builder Grade: $300 to $425 per window installed
Mid Range: $425 to $650 per window installed
Premium: $650 to $900 per window installed
Sample Customer Pricing
Serious 525 Series