Vinyl Windows

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Fiberglass Windows. Built Better than Vinyl.

Whether you’re remodeling an older home or building a new one, choosing the right window material is essential for comfort, energy efficiency, and long-term performance. While vinyl windows were once a popular option due to their lower upfront cost, Custom Exteriors no longer offers vinyl windows. Instead, we focus exclusively on premium fiberglass window solutions, which outperform vinyl in durability, stability, and longevity.

Fiberglass windows provide superior energy efficiency, resist warping and cracking over time, and maintain their appearance in a wide range of climates. By investing in fiberglass rather than vinyl, homeowners gain a higher-quality window with longer lifespan, better performance, and stronger long-term value for their home.

FIBERGLASS WINDOWS: MAIN ADVANTAGES

EXCEPTIONAL DURABILITY

Fiberglass windows are extremely strong and resistant to warping, cracking, rotting, and denting. Unlike vinyl or wood, fiberglass maintains its structural integrity in extreme heat, cold, and moisture, making it ideal for long-term performance in varied climates.

SUPERIOR ENERGY EFFICIENCY

Fiberglass expands and contracts at nearly the same rate as glass, which helps maintain tight seals and consistent insulation over time. This stability reduces air leakage and drafts, leading to improved indoor comfort and lower heating and cooling costs.

LOW MAINTENANCE

Fiberglass windows require minimal upkeep compared to other materials. They don’t peel, swell, or require frequent repainting, and they can be easily cleaned with basic household product which saves homeowners time and maintenance expenses.

LONG-TERM VALUE & SUSTAINABILITY

With a longer lifespan than vinyl or wood, fiberglass windows offer excellent long-term value. They require fewer replacements over time and are often made using environmentally responsible manufacturing processes, making them a more sustainable choice for homeowners focused on durability and efficiency.

The Custom Exteriors team can help you find the best window replacement solution for your Bay Area home! Contact us today.

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Five-Star Reviews

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"Loved working with Custom Exteriors. Very responsive to inquiries. Precise in their measurements, estimate and timeframe for completion. Highly recommend them."

Brian I.

Tampa, FL

"Custom Exteriors provided a great product and good service in replacing 2 sliding glass doors and 2 other windows in my townhouse. One was a custom window that required extra work in refitting the plantation shutters to the new window. Although there were some bumps along the way, Jeff and his foreman Ryan excelled at follow up. I would recommend Custom Exteriors."

Carole N.

Tampa, FL

"Custom Exteriors did a wonderful job. The installation crew were neat and thorough. My salesman Mark kept me informed about delivery and the windows are beautiful, quiet and warm house. I’m very pleased."

Susan G.

Tampa, FL

"Kevin one of the owners of Custom Exteriors contacted me the following day and immediately tried to make things right. The first thing, I was impressed about was he took my call without hesitation. Many medium sized business will bounce me around to different people before finally being able to talk to the owner. He was an attentive listener and took to the time understand my needs and wants in an exterior entry door.His communication was top notch, sending me estimates the same day or the following day. He gave me choices in fiberglass doors: ProVia and Therma-Tru, hardware: Trilennium vs Emtek, and single point vs multiple point locks. I just ordered a ProVia doors through Kevin. This surprised both to my husband and me. Before contacting Custom Exteriors, we thought we were going to get a Therma-Tru door, but that totally changed once we the information we needed from Kevin. I get the sense that he truly wants to give customers options and information, but respects the customer's final decision. There is not high pressure sale pitch. Kevin wants customers to be informed and happy with the end product."

Hellen K.

Tampa, FL

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