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Upgrade to Energy Efficient Fiberglass Windows for Less

Engineered strength, stable performance, and year-round efficiency with lower operating cost.

‍

Bay Area Installers

Regular$915
Now$549
per window installed
(888) 730-4144

We are – 100% employee owned & over 30 years in business!

Get Deluxe Windows for Less.
Fall Savings Event.

Starting from 915 $549* per window installed
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40% Off — Limited Time

Fiberglass Windows Installation & Replacement | Durability & Energy Efficiency

Fiberglass windows excel in durability, resisting swelling, cracking, and warping in any climate. Their sleek design suits both traditional and modern homes.

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Why Choose Fiberglass Windows?

Superior Strength & Longevity

Fiberglass frames are 8x stronger than vinyl and won’t flex or sag over time. They’re built to endure harsh weather, extreme temperatures, and years of everyday use.

Energy-Saving Performance

These windows seal tight, keeping out drafts and reducing energy loss. Combined with Low-E glass, they help stabilize indoor temps and lower your monthly bills.

Custom Wood Look — Without the Maintenance

Fiberglass can be painted and even textured to resemble real wood, giving you the design you want with none of the upkeep.

Window frame guide

Compare Window Materials

See how Fiberglass compares with other frame materials. Change either alternative to match the options on your shortlist.

Your current choice

Fiberglass

High stability and performance in a refined frame.

Best for: High-performance homes, larger glass areas and owners prioritizing longevity.

View Fiberglass details

Practical comfort with minimal upkeep.

Best for: Value-focused replacements, rentals and homeowners who want low maintenance.

View Vinyl details

Premium wood interiors protected by a durable metal shell.

Best for: Design-led homes needing rich interiors, broad exterior colors and strong weather protection.

View Aluminum Clad details
Upfront affordability Relative frame-material cost before project-specific options.
Fiberglass Mid-to-premium

Typically costs more than vinyl but less than many custom wood, clad or steel systems.

Vinyl Most budget friendly

Usually the lowest-cost material category, with many series and option levels.

Aluminum Clad Premium

Wood craftsmanship plus an engineered aluminum exterior places these systems in a premium tier.

Insulation potential The frame's potential to limit heat transfer when properly designed.
Fiberglass Excellent

Low-conductivity frames with insulated cavities can deliver excellent thermal performance.

Vinyl Very good

Multi-chamber PVC frames insulate well; foam-filled designs can improve performance.

Aluminum Clad Very good

The protected wood core limits conduction better than a typical all-aluminum frame.

Maintenance ease How little routine refinishing and upkeep the frame typically needs.
Fiberglass Low

Factory finishes need little upkeep; paintable products may eventually need refinishing.

Vinyl Very low

No painting is normally required; periodic cleaning and hardware care are typical.

Aluminum Clad Low outside

Factory-finished aluminum avoids routine exterior painting; interior wood care varies by finish.

Long-term durability Resistance to age, weather and dimensional change in a quality product.
Fiberglass Exceptional

Strong dimensional stability helps resist swelling, shrinking, warping and cracking.

Vinyl Very good

Resists moisture and decay, while quality and reinforcement affect long-term stability.

Aluminum Clad Exceptional

Extruded cladding protects the wood core when seams, flashing and drainage are correctly detailed.

Structural strength Frame rigidity and ability to support larger or heavier glazing.
Fiberglass Very strong

Stronger profiles can support substantial glazing with less reinforcement than vinyl.

Vinyl Good

Adequate for most residential openings; larger units may use internal reinforcement.

Aluminum Clad Very strong

Layered construction supports large sizes and robust architectural profiles.

Slim sightline potential Ability to use narrow profiles for more visible glass.
Fiberglass Slim

Strength permits relatively narrow frames while maintaining rigidity.

Vinyl Usually broader

PVC profiles generally need more frame width than stronger metal or fiberglass frames.

Aluminum Clad Slim to moderate

Exterior cladding creates crisp profiles, though the wood structure adds some depth.

Design flexibility Range of colors, finishes, textures and architectural applications.
Fiberglass Very good

Available in smooth, textured and paintable finishes, including convincing wood-look interiors.

Vinyl Good

Many common colors and styles are available, but premium finish options vary by line.

Aluminum Clad Exceptional

Combines rich interior woods with a broad palette of durable exterior colors.

Moisture & coastal fit Resistance to moisture and coastal exposure with the correct finish.
Fiberglass Excellent

Does not rot and remains stable in damp conditions when seals and installation are sound.

Vinyl Excellent

PVC does not rot and performs well around moisture when drainage and installation are correct.

Aluminum Clad Very good

The shell protects against weather, but correct detailing must prevent water behind the cladding.

Repairability Practicality of repairing or refinishing frame components.
Fiberglass Limited

Surface damage may be refinished, but major frame damage usually requires specialist replacement.

Vinyl Limited

Hardware and glass can be serviced, but damaged welded frame sections are difficult to repair.

Aluminum Clad Moderate

Interior surfaces are refinishable; exterior cladding and concealed damage need specialist work.

Environmental profile Relative longevity, recycled-content potential and end-of-life options.
Fiberglass Balanced

Long life and energy performance are strengths; composite construction can complicate recycling.

Vinyl Mixed

Long service and energy savings help, but PVC production and end-of-life recycling remain trade-offs.

Aluminum Clad Balanced

Long life and recyclable aluminum help, while mixed construction makes recovery more complex.

Fiberglass: Pros & Cons

View Fiberglass details

Pros

  • Dimensionally stable through temperature changes.
  • Strong frame material that can support larger glazing.
  • Excellent insulation potential with insulated cavities.
  • Low maintenance with paintable options on many lines.

Considerations

  • Higher initial cost than most vinyl products.
  • Fewer manufacturers and product lines in some markets.
  • Finish repairs require compatible products and preparation.
  • Damaged structural sections are not as easy to repair as wood.

Vinyl: Pros & Cons

View Vinyl details

Pros

  • Strong value across a wide range of product lines.
  • Good insulation and moisture resistance.
  • No routine painting or exterior refinishing.
  • Broad availability and short learning curve for maintenance.

Considerations

  • Frames are often wider than fiberglass, aluminum or steel.
  • Color and finish choices can be more limited on entry-level lines.
  • Thermal movement makes engineering and installation quality important.
  • Damaged frame sections are usually replaced rather than repaired.

Aluminum Clad: Pros & Cons

View Aluminum Clad details

Pros

  • Real wood interiors with extensive paint and stain choices.
  • Durable aluminum exterior reduces routine refinishing.
  • Broad exterior color and architectural profile options.
  • Good balance of insulation, strength and weather protection.

Considerations

  • One of the more expensive residential frame systems.
  • Installation and water management details must protect the wood core.
  • Dents or coating damage may require specialist repair.
  • Mixed-material construction is harder to separate for recycling.

Frame material is only one part of window performance. Exact U-factor, SHGC, sound control, security, warranty, lead time and installed price depend on the product series, glazing, size, hardware and installation conditions.

How we compare materials

Ratings are relative guides, not product certifications. Higher ratings indicate a more favorable material characteristic. Review the NFRC label for exact whole-window performance.

Our Guarantee

Vinyl windows
‍


Full lifetime
transferable warranty on parts and labor

Aluminum Wood clad, fiberglass, fiberglass clad


Offer 20 year on glass.

All Other Parts
‍


10 Years
Warranty

Manufacturer's warranty on glass and frame - lifetime**

Upgrade your entire home today with flexible payment options that

No FICO

Your credit rating does not impact your ability to qualify.

No Credit Score Required
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Second Chance Financing

Lower Fixed Rates

Payment remains the same for the life of your financing.

Budget-Friendly Payments
Long-Term Savings
Secure & Stable
Immediate Upgrades

Longer Terms

Flexible repayment terms - up to 30 years for some projects.

Custom Repayment Plans
More Buying Power
Up to 30-Year Terms
Upgrade Without Stress

4 Easy Steps

Our step-by-step process is designed to make replacing your windows and doors easy, stress-free, and fully tailored to your needs — from the first estimate to the final inspection.

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Start

Looking to replace your windows and doors? Reach out to Deluxe Windows for a complimentary estimate.

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Manufacture

If you are satisfied with the provided estimate and approve it, we will order windows and doors according to your specifications and needs.

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Remove and install

Once the products are ready, we will arrange a convenient time for installation and ensure your new windows and doors are expertly fitted.

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Final product

Upon completion, each window and door will be thoroughly inspected to ensure they operate correctly and meet the highest standards of fit and finish.

Your Dream Home
Starts Here

Tell us about your project — we’ll take care of the rest.

Deluxe Windows consultation

Do You Have Any Question?

Call us at (888) 730-4144 to ask your questions.

What are the downsides of fiberglass windows?

The main trade-offs of fiberglass windows: upfront cost runs higher than vinyl and there are fewer budget series to choose from. Whether that matters depends on the home's exposure and budget, which Deluxe Windows reviews openly.

Are fiberglass or vinyl windows better?

For Fiberglass, the answer depends on the exact series, glass and installation conditions. Deluxe Windows reviews the specifics during a free Bay Area consultation and puts the details in writing.

Is fiberglass a good material for windows?

Fiberglass products earn their reputation through dimensional stability, strength and paintable low-maintenance frames. The right call still depends on the home's openings, exposure and budget, which Deluxe Windows reviews during a free assessment.

Are fiberglass windows worth the extra money?

Fiberglass products earn their reputation through dimensional stability, strength and paintable low-maintenance frames. The right call still depends on the home's openings, exposure and budget, which Deluxe Windows reviews during a free assessment. Ask about Fiberglass specifics when booking the free estimate.

How much do fiberglass windows cost installed in the Bay Area?

For fiberglass windows, the current promotion prices installations from $549 per window installed (regular $915). The final quote reflects access, removal and finishing, and Deluxe Windows confirms exact installed pricing after measuring.

* Price applies to minimum window installation size of 24"x24".