When you're investing in new windows for your Colorado home, the material you choose will impact everything from your daily comfort to your home's long-term value. With so many options on the market—wood, fiberglass, vinyl, and aluminum-clad—how do you know which material is right for your specific situation?
The truth is, not all window materials are created equal, especially when you factor in Colorado's unique climate challenges. From hailstorms along the Front Range to intense UV exposure at mile-high altitudes, your windows need to withstand conditions that would challenge materials in other parts of the country.
Let’s break down the four main window frame materials available today, so you can make an informed decision for your home.
Wood Windows: Timeless Beauty with Modern Performance
The Appeal:
Traditional wood windows offer unmatched natural beauty and authentic character. Real wood provides excellent insulation and can be customized with virtually any stain or paint color. For homeowners who value craftsmanship and classic aesthetics, wood windows create a warm, inviting atmosphere that synthetic materials simply can’t replicate.
The Reality:
Modern wood windows have evolved far beyond the high-maintenance reputation of decades past. Today’s engineered wood frames feature advanced moisture barriers and protective finishes that dramatically reduce upkeep while preserving the natural beauty homeowners love.
Best For:
Historic homes, luxury properties, and homeowners who prioritize authentic materials and are willing to invest in proper maintenance.
Fiberglass Windows: The Marketing Promise vs. Reality
The Appeal:
Fiberglass windows are widely promoted as
low-maintenance and
durable. Materials like Ultrex® fiberglass—used in
Infinity from Marvin®—offer dimensional stability and resist expansion and contraction, which can help maintain long-term performance.
The Reality:
Fiberglass performs well overall but comes with a few important considerations. Many fiberglass products feature simulated wood interiors, such as EverWood®, which mimic wood grain but cannot be refinished like real wood. Scratches or surface damage may require professional repair and can sometimes remain visible.
In addition, most fiberglass windows use an acrylic cap finish to protect the material. While these finishes perform well in most environments, Colorado’s combination of high-altitude UV exposure and occasional hail may favor more impact-resistant materials such as extruded aluminum.
Best For:
Budget-conscious homeowners seeking better performance than vinyl and who prefer a clean, modern aesthetic with low maintenance.
Vinyl Windows: The Budget Option
The Appeal:
Vinyl windows provide the lowest upfront cost and require very little maintenance. They’re widely available and can offer adequate performance for basic replacement needs.
The Reality:
Vinyl has inherent limitations that become more noticeable in Colorado’s climate. The material can become brittle in extreme cold and may expand and contract with daily temperature swings. Color options are limited, and vinyl cannot be painted or refinished. Over time, vinyl frames often show age and wear more visibly than other materials.
Best For:
Rental properties, tight budgets, or short-term homes where basic weather protection is the priority.
Aluminum-Clad Wood: The Best of Both Worlds
The Appeal:
Aluminum-clad windows combine the natural beauty and insulation of real wood interiors with the durability and low maintenance of aluminum exteriors. This hybrid approach addresses the traditional weaknesses of both materials while maximizing their strengths.
The Reality:
High-quality aluminum-clad windows—such as Marvin Signature® Ultimate—feature extruded aluminum exteriors finished to AAMA 2605 commercial-grade standards, which resist fading, chalking, and weather damage even under intense UV exposure. The interior wood can be stained, painted, or refinished, offering timeless warmth and unlimited design flexibility.
When properly manufactured and maintained, these windows can carry 20-year exterior finish warranties and remain beautiful for decades. They balance the permanence of real wood with the protection of aluminum—a combination ideally suited to Colorado’s demanding climate.
Best For:
Forever homes, luxury renovations, and homeowners who want premium design flexibility and long-term performance.
Colorado Climate Considerations
Living at altitude presents unique challenges for window materials:
- UV Exposure:
At 5,280 feet and higher, UV radiation is far stronger. Acrylic finishes may fade or chalk faster than extruded-aluminum coatings.
- Hail Damage: Severe storms are common along the Front Range. Extruded aluminum typically provides superior impact resistance compared to lighter finishes.
- Temperature Swings:
Rapid daily temperature shifts cause materials to expand and contract. Real wood with aluminum protection manages these changes better than vinyl or low-grade composites.
- Dry Climate:
Colorado’s low humidity can affect certain materials over time. Properly sealed wood interiors with aluminum-clad exteriors maintain stability year-round.

Making the Right Choice for Your Home
Consider these questions before you choose:
- Is this your forever home?
If you plan to stay long-term, investing in higher-quality materials such as aluminum-clad wood makes sense over a 20+ year lifespan. - How important is customization?
Aluminum-clad wood provides virtually unlimited color, shape, and hardware choices compared to more standardized fiberglass or vinyl options. - What’s your maintenance tolerance?
Real wood interiors can be touched up and refinished, while synthetic wood-look surfaces generally cannot. - What’s your budget horizon?
Weigh total cost of ownership—including warranty coverage, repairability, and resale value—rather than focusing only on the upfront price.
The Bottom Line
For Colorado homeowners serious about long-term value, performance, and design freedom, aluminum-clad wood windows offer the strongest balance of beauty and durability. While the upfront cost may be higher than vinyl or fiberglass, the 20-year exterior warranty, customization flexibility, and weather resilience often make them the smarter investment over time.
At Five Seasons Windows & Doors, we recommend Marvin Signature® Ultimate aluminum-clad wood windows based on our field experience across hundreds of installations throughout Colorado. In our view, these windows deliver exceptional protection, craftsmanship, and long-term satisfaction—exactly what’s needed to thrive in the state’s demanding conditions.
Ready to explore your options?
Contact
Five Seasons Windows & Doors today for a free consultation. Our experts will help you evaluate which window materials make the most sense for your home, your budget, and your long-term goals.
Five Seasons Windows & Doors is Colorado’s top-rated local window company with over 230 five-star reviews. We offer expert advice, no-pressure quotes, and flexible project options—including phased installations.
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Five Seasons Windows & Doors is Colorado’s top-rated local window company with 230+ 5-star reviews. We offer expert advice, no-pressure quotes, and flexible project options — including phased installs. Schedule your consult today.




