What’s Your Window Made Of? A Not-So-Gentle Breakdown of Wood, Aluminum, Vinyl, and Fiberglass

Joe Underwood • June 28, 2025

Because not all windows are created equal — especially when Florida decides to do what Florida does best: destroy things with sun, salt, and storms.

Let’s face it — choosing window materials isn’t exactly the most thrilling part of homeownership. But ignoring it? That’s how you end up with a house full of warped, peeling, rattling regret. So today, we’re breaking down the major window types — wood, aluminum, vinyl, and fiberglass — and giving you the raw, unfiltered truth on which ones actually hold up in Florida’s tropical apocalypse of a climate.


🌲 Wood Windows: Nostalgia With a Side of Rot

Wood windows are charming. Warm. Rich. Beautiful. They also rot faster than leftover fish in the Florida sun. Unless you live in a time machine or a museum, we don’t recommend them. Sure, they can be clad in aluminum or fiberglass to help them resist moisture, but even then — Florida’s humidity, termites, and rainstorms will eventually win. And if you’re dreaming of low maintenance? Keep dreaming.


✅ Verdict: Pretty, but high maintenance. Like dating someone with a trust fund and emotional baggage.


🪵 Vinyl Windows: The Good, the Bad, and the Ugly

Here’s where things get spicy. People hear “vinyl” and think it’s all the same. Spoiler: It’s absolutely not.


There’s cheap vinyl — the kind that yellows, warps, and cracks faster than a plastic lawn chair at a Fourth of July BBQ. Then there’s premium virgin vinyl. The good stuff. UV-resistant, multi-chambered, thermally superior, and warrantied for life by top-tier manufacturers who know what they’re doing.


We love vinyl windows when it’s the right vinyl. Brands like Eastern Architectural Systems and CWS by Pella use premium blends that are engineered to withstand Florida’s heat, salt air, and humidity without cracking under pressure (literally).


And when you reinforce that high-grade vinyl with aluminum or composite, you get structural strength and thermal efficiency in one beautiful, mold-resistant package.


✅ Verdict: When done right, the MVP of Florida window materials. When done cheap? You’ll be replacing them before your kid finishes middle school.


🪟 Aluminum Windows: Strong… Until Florida Happens

Aluminum sounds strong. Rugged. Metallic. But here’s the truth: basic aluminum windows are thermal nightmares. They conduct heat like a frying pan and sweat like a Florida man in July.


Worse, they oxidize, pit, and corrode — especially near the coast. If your home’s within sniffing distance of the ocean, those frames will start looking like they’ve been through a Mad Max sequel in a few years.


Now, aluminum with thermal breaks is a different beast. These windows have insulating barriers (often resin or polyamide) between the inner and outer frames. That slows down heat transfer and keeps your electric bill from going into cardiac arrest.


✅ Verdict: We prefer aluminum windows with thermal breaks only, and usually only in specialty cases. Otherwise, premium vinyl still wins.


🦴 Fiberglass Windows: The Tank That Cracks

Everyone loves to say fiberglass is the most durable window material. And on paper, it is. But let’s not pretend it's perfect.


Here’s the catch nobody talks about: fiberglass windows aren’t 100% fiberglass. They’re actually a wood composite core wrapped in fiberglass. And when you throw that mix into Florida’s humidity stew? You start getting peeling, flaking, expansion, and contraction — especially on darker finishes.


Over time, even the “indestructible” can look downright sad. Also, have fun paying that premium price tag for a product that may need more babysitting than you were promised.


✅ Verdict: Looks strong on paper, but the Florida climate isn’t always kind. It’s the bodybuilder who forgot sunscreen.


🏆 Our Recommendation? Premium Vinyl Reinforced with Guts

Here at Windoor Retro Professionals, we’ve tried just about every window under the sun (and we mean under the sun). When it comes down to durability, thermal performance, cost-effectiveness, and long-term reliability, premium vinyl wins — hands down.


We specifically love installing vinyl windows reinforced with aluminum or composite. You get the flexibility and insulation of vinyl, the added strength of reinforcement, and none of the rotting, flaking, or oxidizing drama.


Brands like Viwinco, CWS by Pella, and Eastern Architectural Systems offer lifetime warranties because their vinyl is built for this exact kind of climate chaos. And that’s what we’re all about — products that are as tough as the weather they’re built for.


Final Thought 💭

Window material isn’t just about aesthetics or price — it’s about knowing what’ll still look good and function after ten Florida summers. Want help choosing what’s right for your home? Let us bring the expertise, the sarcasm, and the solutions.


Ready to upgrade your windows?
Call Windoor Retro Professionals today.

We install windows that actually last — and we’re not afraid to tell you when one won’t.

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