San Rafael homeowners looking for a window replacement contractor face a specific set of challenges. The coastal fog that rolls through the Terra Linda and Lucas Valley neighborhoods accelerates seal failure on standard windows. Homes in the Dominican Heights and Peacock Gap areas sit on hillsides with exposure to strong Pacific winds. And much of San Rafael falls within CAL FIRE-designated Wildland-Urban Interface (WUI) zones, which means replacement windows must meet specific fire-resistant material requirements under California Chapter 7A.
Hamilton Exteriors is an architect-led design-build firm serving San Rafael and all of Marin County. We handle window replacements from initial consultation through final inspection, with a dedicated project manager on every job. Our founder, Alex Hamilton Li, is a licensed architect and general contractor (CSLB #1078806) who oversees every project personally.
Why San Rafael Homeowners Choose Hamilton Exteriors
Most window replacement companies in San Rafael are tradesmen-only operations. They install what you pick from a catalog and move on. Hamilton Exteriors is different. We bring an architect's perspective to every project, evaluating how new windows affect your home's energy performance, structural integrity, and overall design.
- Architect-led process. Alex Hamilton Li reviews every window specification personally. He considers factors like solar heat gain, U-factor ratings, and how the window style complements your home's architecture.
- Factory-certified installers. Our crews hold certifications from Milgard, Andersen, Marvin, and Anlin. Every installer is background-checked, licensed, bonded, and insured.
- 50-year manufacturer warranty. All windows we install carry a 50-year manufacturer warranty, backed by our own workmanship guarantee for the full duration.
- Transparent pricing. Every estimate is itemized line by line. You see the cost of each window unit, trim, flashing, labor, and cleanup before we start.
Window Replacement Costs in San Rafael
Window replacement costs in San Rafael depend on the style, frame material, and number of windows. These prices reflect fully installed costs for typical San Rafael homes. Pricing reflects Hamilton Exteriors 2024-2026 project data.
| Window Style | Price per Window (Installed) | Typical Total for 15 Windows |
|---|---|---|
| Single-hung vinyl | $650 - $950 | $9,750 - $14,250 |
| Double-hung vinyl | $700 - $1,100 | $10,500 - $16,500 |
| Casement (fiberglass) | $900 - $1,400 | $13,500 - $21,000 |
| Picture window | $800 - $1,200 | $12,000 - $18,000 |
| Sliding glass door | $2,500 - $4,500 | $2,500 - $4,500 per door |
All prices include removal of existing windows, new flashing, materials, labor, trim, and cleanup. Energy-efficient Low-E glass is standard on every window. Pricing varies based on window size, frame material, glass options, and installation complexity. Contact us for an itemized estimate specific to your San Rafael home.
San Rafael Building Permits for Window Replacement
San Rafael requires building permits for window replacements that change the size or location of the opening. In-kind replacements (same size, same location) typically do not require a permit, but we recommend pulling one anyway to document the work for future home sales. Permit fees in San Rafael range from $200 to $600 depending on the scope of work. We handle the entire permit process for you. Visit the San Rafael Building Department for current fee schedules.
Windows for San Rafael's Coastal Climate
San Rafael sits at the transition zone between the coastal fog belt and the warmer inland valleys. Homes in the Canal area and near the bay experience salt-laden marine air that corrodes standard aluminum frames. We recommend fiberglass or vinyl frames for these locations. Homes in the Terra Linda hills and Lucas Valley areas face fog and wind exposure. Casement windows, which seal tighter than sliding windows, perform best in these conditions.
Fire-Safe Windows for WUI Zones
Much of San Rafael, particularly the hillside neighborhoods, is in a CAL FIRE-designated High or Very High Fire Hazard Severity Zone. California Chapter 7A requires windows in these zones to meet specific fire-resistance standards. Dual-pane tempered glass windows with non-combustible frames (fiberglass or metal) are typically required. We install windows that meet or exceed these standards and provide all documentation needed for your insurance company.
Seismic Considerations
Marin County sits near the San Andreas Fault, which runs along the western edge of the county. While most of San Rafael is in a moderate seismic zone, older homes built before 1980 may have windows that are not properly anchored to the structure. We inspect the rough opening during every installation and add seismic-rated fasteners where needed at no extra cost.
Window Styles for San Rafael Homes
San Rafael has a mix of architectural styles, from mid-century modern homes in the Peacock Gap area to Mediterranean-style homes in the Dominican neighborhood and ranch-style homes in Terra Linda. We install all major window styles to match your home's architecture.
- Casement windows. Best for fog-belt homes. Crank-open design provides 50 to 90 percent more airflow than sliding windows and seals tighter when closed.
- Double-hung windows. The classic choice for traditional San Rafael homes. Both sashes tilt in for easy cleaning.
- Sliding windows. Ideal for mid-century modern and Eichler-style homes common in the Terra Linda area.
- Picture windows. Large fixed panes that maximize natural light and frame views of Mount Tamalpais or the San Rafael hills.
- Sliding glass doors. Connect your indoor living space to your San Rafael backyard or patio.
What Homeowners Say
"Hamilton Exteriors did an amazing job on our window replacement in San Rafael. The team was professional, and the quality of work was top-notch. Highly recommend!" - Eric W., via Yelp
"From the very first consultation, we knew we'd made the right choice. The team was knowledgeable and genuinely listened to our concerns about energy efficiency and design. We've already noticed a drop in our energy bills." - Robert H., via Angi
Related Services
- Window replacement services - Full overview of our window offerings
- Window replacement cost guide - Bay Area pricing breakdown
- San Rafael home exterior services - Roofing, siding, and more
- Marin County service area - All cities we serve
Get Your Free Quote
Ready to replace your San Rafael windows? Call us at (650) 977-3351 or fill out our contact form. We'll schedule a free on-site consultation within 3 days. Every estimate is itemized, and we handle all permits and inspections.
Call Now (650) 977-3351 
