Fiberglass doors are the premier choice for Colorado’s unique environment because they are specifically engineered to withstand extreme high-altitude conditions that typically damage wood or steel. They provide unmatched durability and thermal performance for our local climate.

We recommend fiberglass for several key reasons:

• Superior Insulation: With R-values typically ranging from 5 to 7, fiberglass offers significantly better insulation than steel (R-3 to R-4) or wood (R-2 to R-3). This high thermal resistance directly translates to lower heating and cooling costs.
• Weather Resistance: Colorado’s 40°F daily temperature swings and heavy snow cycles can cause wood to rot or warp and steel to rust. Fiberglass has minimal thermal expansion, meaning it won’t swell, crack, or lose its seal during freeze-thaw cycles.
• UV Protection: Our high-altitude sun is intense. Unlike wood, which requires constant resealing, fiberglass features factory finishes that resist UV fading and high-altitude sun damage.
• Longevity and Low Maintenance: A fiberglass door can last 30 to 50+ years with minimal upkeep, compared to much shorter lifespans for wood or steel doors in our dry, high-UV air.

Through our Design Build Services, we provide single-point accountability for your installation. We also assess the condition of your existing frame, as addressing potential rot through exterior door frame replacement is essential for a weather-tight fit. Estimates are preliminary and subject to change after site inspection and a full scope review. Please consult a licensed contractor for definitive advice; verify licensure with the Colorado Department of Regulatory Agencies (DORA). Project outcomes and timelines may vary based on site conditions, permitting, and material availability.

Let us help you get your project started. Contact us today for a custom quote.

• Best Energy Efficient Fiberglass Entry Doors in Centennial 2026