Compare Fiberglass Windows vs Vinyl Windows in the Mid-Atlantic
Are you stuck comparing fiberglass windows vs vinyl windows and trying to figure out which option is right for your home? This is one of the most common questions homeowners in Delaware, Maryland, and Pennsylvania ask when planning a window replacement project. After all, window replacement isn’t something you do often, and it’s a big investment. You want windows that look good, last long, and help keep energy bills down.
At Ferris Home Improvements, we install high-quality ProVia windows, one of the industry’s leading manufacturers known for their exceptional fiberglass product lines. With over 40 years of home improvement experience, our team is here to help you understand your options and make a decision that suits your home and budget.
Fiberglass Windows vs Vinyl: What’s the Right Fit for You?
Vinyl Windows
- Budget-friendly and energy efficient
- Low maintenance and long-lasting (20–30 years)
- Great performance for most homes
- Come in a wide range of colors and styles
Fiberglass Windows
- Incredibly strong and can withstand extreme temps with less
expansion and contraction - Longer lifespan (up to 50+ years with minimal maintenance)
- Excellent energy performance, which is great for year-round comfort
- Can be painted for added design flexibility
- Mimics the look of wood with none of the upkeep

Why Fiberglass Windows Are Not Popular (Yet)
You might be wondering: "If fiberglass has so many advantages, why aren’t more people using it?"
The honest answer? Fiberglass windows are not popular yet simply because they’re newer to the market and come with a slightly higher price tag. Vinyl windows have been around longer, and for many, it’s the go-to default. But as more homeowners learn about the long-term value of fiberglass, demand is growing — especially in places like Delaware, Maryland, and Pennsylvania, where weather extremes really test a window’s performance.
How to Choose: Fiberglass or Vinyl?
- Prioritizing Budget – Vinyl windows are an excellent choice. They give you reliable performance at a lower upfront cost, and they still offer good energy efficiency and curb appeal.
- Focused on Long-Term Durability – Go with fiberglass windows. They’re stronger than vinyl, last longer, and hold up better in extreme weather.
- Want More Design Flexibility – Fiberglass gives you the option to paint your window frames for a custom look. This is ideal for homeowners wanting a modern black frame or a color that complements other exterior upgrades.
- Looking to Reduce Energy Bills – Both fiberglass and vinyl windows are energy efficient, especially when you choose ProVia windows, which are engineered to reduce heat transfer and improve insulation year-round.
Still can’t decide? No problem. We’re happy to walk you through samples, performance data, pricing, and more, so you feel completely confident in your choice.
Why Ferris Recommends ProVia Windows
We install both vinyl and fiberglass windows — because we believe your home deserves options that fit your unique priorities.
We proudly install ProVia windows. ProVia is known for its top-tier engineering, energy efficiency, and beautiful finishes that enhance your home’s curb appeal. Whether you're choosing fiberglass or vinyl, ProVia offers lasting quality you can count on.
Why Homeowners Trust Ferris
- Family-owned and operated, with over 40 years of local experience
- The Ferris Way — we don’t drop quotes and walk away. We consult, listen, and create a custom experience
- One-stop shop — windows, roofing, siding, interiors, exteriors — we do it all
- No project is too big or too small for our team
- Get rewarded for sending friends and family our way
Let’s Talk About Your Windows
If you're still deciding between fiberglass windows vs vinyl, for your home in Delaware, Maryland or Pennsylvania, Ferris Home Improvements can help. Let’s chat. Our team can answer your questions, walk you through pricing and design choices, and help you choose a window solution that actually fits your home, your goals, and your budget.
We’re here to help you feel confident, not confused. Contact us today to get started.