Windows
Fiberglass windows — the strongest, most stable frame material available.
Fiberglass window frames expand and contract at the same rate as the glass itself, creating the tightest seal in the industry. Stronger than vinyl, more stable than wood, and maintenance-free for life.
1,200+·4.9★·50+ Years·0
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Fiberglass
Fiberglass — the strongest, most stable frame on the market.
What makes fiberglass windows different?
Fiberglass windows are made from pultruded glass fibers bonded with resin — the same material used in boat hulls, aircraft, and automotive components. The result is a frame that is 8x stronger than vinyl, virtually immune to expansion and contraction, and completely impervious to moisture, rot, and insect damage.
The key advantage of fiberglass is dimensional stability. Because the frame is made from glass fiber, it expands and contracts at nearly the same rate as the glass pane itself. This means the seal between the frame and glass stays tight through decades of temperature swings — from frozen New Jersey winters to humid summers. That tight seal translates to better energy performance and a longer-lasting gas fill.
At CLIQBUILT, we install ProVia fiberglass windows — widely regarded as the premium fiberglass window brand in the residential market. ProVia's Aeris and ecoLite series offer slim profiles, deep color options (including true painted finishes that look like wood), and best-in-class structural ratings for wind resistance and water penetration.
Fiberglass is the premium window choice for homeowners who want the absolute best in energy performance, structural integrity, and long-term value. While the upfront cost is higher than vinyl, the 50+ year lifespan and zero-maintenance frame make it the lowest cost-per-year option available.
Why CLIQBUILT for fiberglass windows
ProVia fiberglass
We install ProVia Aeris and ecoLite fiberglass windows — the highest-rated fiberglass window brand in America. Real painted finishes, not laminate.
8x stronger than vinyl
Fiberglass frames are 8x stronger than vinyl and won't warp, bow, or sag — even in oversized configurations. They pass the most demanding structural tests.
Matched expansion rate
Fiberglass expands at the same rate as glass. The seal between frame and glass stays tighter, longer — which means better energy performance for decades.
Installed by our own crews
Every fiberglass window is installed by CLIQBUILT W-2 employees. No subcontractors, no day laborers, no compromises.
Brands we install
Built to last
Fiberglass — when you want it done once.
Interior detail
Slim sightlines. Maximum glass.
Fiberglass frames are 8x stronger than vinyl, allowing slimmer sightlines and bigger glass panels. They expand and contract at the same rate as glass, eliminating seal failures over time.
- 8x stronger than vinyl
- Paintable interior and exterior
- Triple-pane glass available
Materials & options
We install ProVia fiberglass windows exclusively — the industry's most awarded fiberglass window brand with a lifetime warranty and true painted finishes.
ProVia Aeris Series
- Premium pultruded fiberglass frame with real painted exterior finish (not laminate)
- Available in 30+ exterior colors including custom color matching
- Triple-pane glass with krypton gas fill and dual Low-E coatings standard
- DP50+ structural rating — designed for coastal and high-wind applications
ProVia ecoLite Series
- Mid-range fiberglass with the same structural benefits at a more accessible price
- Double-pane argon-filled glass with Low-E coating
- 10+ exterior colors with white or woodgrain interior
- Ideal for whole-home replacement at a competitive price point
Styles Available
- Double-hung, casement, awning, slider, picture, geometric
- Bay and bow configurations with fiberglass frames
- Custom shapes: arches, circles, trapezoids, half-rounds
- Simulated divided light (SDL) and grilles-between-glass (GBG) options
How it works
Free Consultation
45-60 minWe visit your home, measure every opening, and discuss your priorities — energy savings, curb appeal, sound reduction. You receive an exact fixed price.
Custom Manufacturing
4-6 weeksProVia manufactures your windows to exact dimensions with your chosen color, glass, and hardware. Lead time is typically 4-6 weeks.
Installation
1-2 daysOur crew removes old windows, inspects rough openings, and installs new fiberglass windows with proper flashing, insulation, and interior/exterior trim.
Final Walkthrough
30 minEvery window tested for smooth operation, locking, and seal integrity. Warranties registered, cleanup completed.
Pricing
Fiberglass windows are a premium product. Pricing reflects the superior materials, painted finishes, and 50+ year lifespan.
Starting price
From $950/window
Factors that affect final price:
- Number of windows
- Series: Aeris (premium) vs. ecoLite (mid-range)
- Glass configuration: double-pane vs. triple-pane
- Exterior color (standard vs. custom color match)
- Window style and size
- Specialty shapes and configurations
What's included
No surprise add-ons. Every fiberglass windows job includes these line items.
Frequently asked questions
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Starting price
From $950/window
Fiberglass Windows starting price. Final price depends on scope, size, and materials.
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