Looking for a reliable contractor in Saratoga? Hamilton Exteriors provides architect-led design-build services for homeowners across Saratoga, from the downtown village to the foothills of the Santa Cruz Mountains. We handle roofing, siding, windows, ADUs, home additions, custom homes, and decks — all with the same architect's eye and transparent pricing.
Why Saratoga Homeowners Choose Hamilton Exteriors
Saratoga homes come with unique challenges. The city sits in a Wildland-Urban Interface (WUI) zone designated as Very High Fire Hazard Severity Zone (FHSZ) by CAL FIRE. Properties in the foothills require Class A fire-rated roofing materials and Chapter 7A compliant construction. Our team, led by Alex Hamilton Li — a licensed architect and general contractor (CSLB #1078806) — understands these requirements and builds every project to meet or exceed them.
We are not a national franchise or a crew-for-hire. We are a local design-build firm that has completed over 500 projects across the Bay Area since 2018. Every estimate is fully itemized, every project gets a dedicated manager, and every homeowner gets direct access to Alex throughout the process.
Services We Offer in Saratoga
Roofing
Saratoga's climate demands a roof that handles both hot, dry summers and occasional winter storms. We install:
- Asphalt shingles from GAF, CertainTeed, and Owens Corning. Class A fire rated. 25 to 50 year lifespan. $940 to $1,125 per square installed.
- Metal roofing in standing seam, corrugated, and stone-coated steel. 40 to 70 year lifespan. Reflects up to 70 percent of solar energy (Oak Ridge National Laboratory). $1,200 to $1,800 per square installed.
- Tile roofing in clay and concrete. 50 to 100 year lifespan. Ideal for Mediterranean and Spanish-style Saratoga homes. $1,500 to $2,500 per square installed.
All roofing includes tear-off, synthetic underlayment, flashing, ridge vent, and permit. Structural repair and decking replacement quoted separately if needed.
Siding
We are a James Hardie Elite Preferred Contractor, the highest certification level for fiber cement siding installation. James Hardie siding is engineered for fire resistance (non-combustible) and performs well in Saratoga's temperature swings. We also install wood, stucco, and engineered wood siding.
Typical siding replacement costs $12,000 to $35,000 for a standard Saratoga home, depending on square footage, material, and complexity (Hamilton Exteriors 2024-2026 project data).
Windows
Energy-efficient window replacements reduce cooling costs during Saratoga's 95°F+ summer days and improve home comfort year-round. We install vinyl, fiberglass, aluminum-clad wood, and wood windows from leading manufacturers. All meet California Title 24 energy code requirements.
Window replacement typically costs $800 to $1,500 per window installed, including frame, glass, flashing, and trim (Hamilton Exteriors 2024-2026 project data).
See our full window replacement services
ADU Construction
Saratoga allows accessory dwelling units (ADUs) on most single-family lots under California state law and local zoning. We handle the full process: design, permitting, and construction. Typical ADU costs in Santa Clara County range from $200,000 to $450,000 depending on size, finishes, and site conditions (Hamilton Exteriors 2024-2026 project data).
See our full ADU construction services
Home Additions
Adding square footage to a Saratoga home requires careful design to match existing architecture and meet setback, height, and lot coverage requirements. We design and build second-story additions, room additions, and bump-outs. Typical costs range from $300 to $600 per square foot (Hamilton Exteriors 2024-2026 project data).
See our full home addition services
Custom Homes
For homeowners who want a completely new home on their Saratoga lot, we offer full custom home design and construction. Every project is architect-led from concept through final inspection. Costs vary significantly by size, complexity, and finish level.
See our full custom home building services
Decks
Saratoga's mild climate makes outdoor living spaces a year-round asset. We build decks in composite, cedar, redwood, and IPE. All designs meet California building code for structural load and railing height.
See our full deck building services
What Makes Saratoga Different?
Fire Risk
Saratoga is one of the highest-risk communities for wildfire in Santa Clara County. The western foothills — areas near Highway 9, Congress Springs Road, and Pierce Road — fall within the Very High FHSZ. This means:
- Class A fire-rated roofing is required for all new roofs and replacements.
- Ember-resistant vents (with 1/8-inch mesh) are required for new construction and major renovations.
- Defensible space clearance (100 feet from structures) is required per California Public Resources Code 4291.
- Some properties may need additional fire-resistant siding and decking materials.
We verify fire zone requirements for every Saratoga project before we start.
Climate
Saratoga experiences hot, dry summers with average highs above 90°F from June through September, and occasional spikes above 100°F. Winters are cool and wet, with most rainfall between November and March. This climate cycle — heat expansion, UV exposure, then winter moisture — accelerates wear on roofing and siding materials. Premium architectural shingles, metal roofing, and fiber cement siding perform best here.
Seismic Considerations
Santa Clara County sits near three major fault systems: the San Andreas, Calaveras, and Hayward faults. While Saratoga itself is not in a mapped liquefaction zone (those are concentrated in the San Jose alluvial plains), all new construction and additions must meet California's seismic bracing and foundation requirements. We design for seismic loads on every project.
Permits and Building Department
The City of Saratoga Building Division handles all permit applications, plan reviews, and inspections. Permit fees vary by project scope. We pull all permits on your behalf and coordinate all required inspections. Our team knows the Saratoga building code and has experience with the city's review process.
How We Price Projects
We believe in transparent, itemized pricing. Every estimate breaks down:
- Materials (by type and quantity)
- Labor (by trade)
- Permits and fees
- Cleanup and disposal
- Warranty coverage
We do not use lump-sum bids that hide markups. You see exactly where every dollar goes. Pricing is quoted as a range based on your specific project scope, and we discuss potential contingencies (decking repair, structural reinforcement, code upgrades) upfront.
Get Your Free Quote
Ready to start your Saratoga home project? Call (650) 977-3351 or fill out our online form. We serve all of Saratoga and the surrounding Santa Clara County communities.
Hamilton Exteriors. Architect-led design-build. CSLB #1078806. Serving Saratoga since 2018.
