- MATERIAL GUIDE
Compare Window Frame Materials
Understand the key differences between the three most popular window frame
materials before making your investment decision.
Premium Composite
Wood-Composite Blend
Budget-Friendly
- Composition
- Glass fibers + resin matrix
- Wood fiber + thermoplastic
- Polyvinyl chloride (PVC)
- Durability Rating
- Energy Efficiency
- Maintenance Level
- Very Low
- Low
- Very Low
- U-Factor Range
0.17 – 0.27
0.20 – 0.30
0.22 – 0.35
- Expected Lifespan
50+ years
30–40 years
20–40 years
- Color Options
Paintable + factory colors
Select factory colors
Many factory colors
- Cost per Window
$1,120 – $2,100+
$840 – $1,680
$420 – $1,120
- Thermal Expansion
- Minimal
- Low
- Moderate
- Best For
Long-term value seekers, extreme climates
Andersen buyers wanting durability
Budget-conscious homeowners
- Energy Efficiency Performance Comparison
Lower U-Factor = Better Insulation
Fiberglass
96 / 100
- Top Rated
Fibrex®
82 / 100
Vinyl
74 / 100
- Good
Premium Choice
Strongest long-term investment. Dimensionally stable in extreme cold and heat. Paintable for any aesthetic. Brands like Infinity by Marvin and ProVia use fiberglass.
Ideal for
Climate-zone homes
Andersen Exclusive Blend
Proprietary to Andersen Windows. Combines wood fiber rigidity with thermoplastic versatility. Stronger than vinyl but only available through Andersen’s lineup.
Ideal for
Andersen brand buyers
Value Choice
Most widely installed material. Excellent price-to-performance ratio. Highly recyclable and low maintenance. Best for mild climates and budget-focused projects.
Ideal for
Climate-zone homes
Not sure which material is right for you?
Our Materialmate advisors help you match material to your budget, climate, and home style.
- Ratings are based on aggregated industry data and independent testing. U-Factor ranges reflect double-pane glass packages. Costs are approximate installed averages and vary by region, window size, and installer. Materialmate does not manufacture windows and is an independent buyer's guide.