WINDOW REPLACEMENT

Window Replacement in Denver, Colorado

Windows are one of the most impactful upgrades you can make to a Colorado home. At elevation, UV intensity is significantly higher than at sea level, fading furniture, deteriorating seals, and accelerating frame degradation faster than in many climates. Add hail, temperature extremes, and dry winters, and the case for high-performance replacement windows becomes clear.

As certified installers for Pella and ProVia, The Roofing & Siding Company brings manufacturer-level expertise to every window replacement. We help you select the right products for your home's style and performance needs, then install them precisely, meeting manufacturer warranty requirements and achieving rated energy performance.

Signs It's Time to Replace Your Windows

• Drafts Near Closed Windows: Feeling cold air or seeing condensation on interior surfaces near window frames means seals and weatherstripping have failed. Heat is escaping and you're paying for it.
• Foggy or Cloudy Glass: Condensation or haze between the panes is a permanent sign that the insulated glass unit's seal has failed. The inert gas fill is gone and the insulating value is lost. The only fix is replacing the window or glass unit.
• Difficulty Opening, Closing, or Locking: Windows that stick, won't lock fully, or are painted or swollen shut are security risks and signs of frame deterioration.
• Visible Rot, Damage, or Decay: Wood frames that show rot, cracks, or significant wear allow water infiltration that can spread to surrounding framing and trim.
• Single-Pane Glass: Single-pane windows have virtually no insulating value. Upgrading to double or triple-pane dramatically improves comfort and energy bills.
• High Heating & Cooling Costs: Old or failing windows are often the leading source of heat loss in a home. New ENERGY STAR windows can reduce energy costs by 12–30% in Colorado.
• Excessive Outside Noise: Modern double and triple-pane windows provide meaningful sound reduction, noticeably quieter than older single or early double-pane units.

Window Brands We Install

• Pella Windows: One of the most recognized window brands in the U.S., Pella offers a full range from the Pella 250 Series (entry-level fiberglass) through the Architect Series (premium wood interior). Known for design flexibility, wide product range, and strong warranty coverage.
• ProVia Windows: A contractor-preferred brand known for outstanding energy performance, rigorous quality testing, and industry-leading warranty coverage. ProVia's Endure and Aeris series are engineered to outperform in demanding climates like Colorado's.

Window Types We Replace

• Double-Hung Windows: The most common residential window style. Both sashes slide vertically for easy cleaning and ventilation control.
• Casement Windows: Hinged at the side and cranked open outward, casement windows offer excellent sealing and unobstructed views.
• Sliding Windows: One or both sashes slide horizontally for a clean, contemporary look that works well in modern homes.
• Picture Windows: Fixed glass panels that maximize light and views. Often combined with operable windows on either side.
• Bay & Bow Windows: Projecting window configurations that add architectural interest and interior space.
• Specialty Shapes: Arched, angled, and custom-shape windows to match your home's unique architecture.

Our Replacement Process

• Free In-Home Consultation: We measure every window, assess existing conditions, and walk you through product options with exact pricing. No pressure.
• Custom Order: Your windows are ordered to precise measurements for a tight, energy-efficient fit with no filler strips or gaps.
• Professional Installation: Existing windows are carefully removed. New units are installed with proper flashing, insulation, and air sealing, as required to meet manufacturer warranty requirements.
• Interior & Exterior Trim: All interior and exterior trim is replaced or repaired and caulked for a clean, finished appearance.
• Final Walkthrough: We demonstrate operation of every window, review warranty documentation, and leave your home spotless.

Window Replacement Across the Denver Metro

We replace windows throughout the Denver metro area and surrounding communities. Whether you're replacing one window or all of them, our team is ready to help.

Window Replacement FAQ