Roofing, Siding & Exterior Remodeling in San Mateo

We serve Northern California across three regions: the San Francisco Bay Area (six counties from Alameda to Santa Clara), Greater Sacramento (Sacramento out to Roseville, Folsom, and Davis), and the Central Valley (Stockton to Modesto). Our crews are based in Castro Valley. We handle permits and know the building codes for each jurisdiction, which matters because requirements and fees vary significantly between cities.

We offer $0-down financing with approved credit, 12-month same-as-cash plans, and extended terms up to 15 years for larger projects. You only pay for completed, inspected work — we never ask for full payment before the job is done. Your project manager will walk you through every option during your estimate appointment. We also accept checks, ACH, and all major credit cards.

Yes. CSLB License #1078806 — verify it anytime at cslb.ca.gov. We carry $2M general liability, full workers’ comp, and are bonded per California law. We hold GAF Master Elite, Owens Corning Preferred, CertainTeed ShingleMaster, and James Hardie Elite Preferred certifications — each requires annual training and quality audits to maintain. We’re happy to provide proof of insurance before any work begins.

Most exterior projects in Northern California require a building permit. Fees vary by city — Oakland runs $200–$600, Peninsula cities often more. We handle the entire permit process: application, plan submission, and scheduling inspections. Permit fees appear as a separate line item in your estimate so you’ll see every cost upfront. For homes in WUI fire zones (Berkeley Hills, Oakland Hills, parts of Marin), we ensure full compliance with local fire-rated material requirements.

Costs in San Mateo reflect the premium market and local labor rates. Roof replacements typically run $12,000–$25,000 for a standard home, siding from $24,000–$42,000, and window replacements from $500–$1,000 per window depending on type and frame material. ADUs range from $210,000–$450,000. With median home values at $1,600,000 in San Mateo, these improvements are strong investments. We provide free, itemized estimates for every project — no hidden fees.

San Mateo is Peninsula's most populous city blending established neighborhoods with a walkable downtown, with housing stock that includes 1940s-50s ranch homes and Cape Cods in San Mateo Park and Hillsdale, pre-war Colonials and Tudors in Baywood, mid-century Eichler-influenced homes, and recent mixed-use near downtown. These homes face specific challenges: moisture-related wood rot on north-facing eaves and fascia of 1940s-50s homes. Original wood-frame windows in San Mateo Park show widespread seal failure and paint deterioration.. With median home values at $1,600,000, exterior work is a significant investment that demands a contractor who understands San Mateo's unique conditions. Hamilton Exteriors brings local knowledge of San Mateo County building codes, Title 24 Climate Zone 3 requirements, and climate-specific material selection to every project.

We serve all San Mateo neighborhoods including San Mateo Park, Hillsdale, Baywood, Beresford, Fiesta Gardens, and surrounding areas. With a population of 105,661, San Mateo has a wide range of home styles — 1940s-50s ranch homes and Cape Cods in San Mateo Park and Hillsdale, pre-war Colonials and Tudors in Baywood, mid-century Eichler-influenced homes, and recent mixed-use near downtown. Our crews are familiar with the architectural character of each neighborhood and carry materials suited to San Mateo's climate: Moderate Peninsula: summer highs 70-82°F, winter lows 40-48°F. Fog intrusion moderate, more persistent on western hillside. Annual rainfall 20-22 inches.

San Mateo's climate — moderate marine influence with summer fog burning off by late morning. Baywood hillside homes see more wind exposure and moisture retention from afternoon fog drip. — creates specific challenges for homeowners. The most common issues we see are moisture-related wood rot on north-facing eaves and fascia of 1940s-50s homes. Original wood-frame windows in San Mateo Park show widespread seal failure and paint deterioration.. For roofing, Composition shingles dominate. Homes bordering Hillsborough have larger, steeper roofs with architectural shingles or concrete tile. Flat roofs on mid-century conversions need TPO or modified bitumen. Permits 2-3 weeks. For siding, Wood lap prevalent on 1940s-50s homes — many layers of paint over redwood. Stucco on post-1960 homes. Fiber cement growing rapidly. Baywood has larger homes with board-and-batten needing custom profiles. Hamilton Exteriors selects materials proven to perform in San Mateo's conditions and backs every installation with our 50-year warranty.

Yes. With San Mateo's median home value at $1,600,000, exterior upgrades deliver strong ROI. A new roof recoups 60-65% of its cost at resale in the Bay Area, while fiber cement siding (James Hardie) recovers up to 86%. In competitive San Mateo neighborhoods like San Mateo Park and Hillsdale, curb appeal directly impacts days on market and final sale price. Hamilton Exteriors helps San Mateo homeowners choose materials that maximize both protection and resale value.

San Mateo and San Mateo County sit between the Pacific fog belt and the warmer inland Peninsula. Homes in western and elevated neighborhoods experience persistent fog, moisture, and salt air that accelerate wood rot and metal corrosion. Eastern and lower-elevation homes see more sun and heat. Hamilton Exteriors selects materials based on your home's specific microclimate — fiber cement siding resists coastal moisture, while cool-roof-rated shingles manage heat on sun-exposed slopes. We use corrosion-resistant fasteners on all Bay-adjacent projects.

Yes. San Mateo County and the city of San Mateo require building permits for roof replacements, siding installations, and window changes. Some San Mateo neighborhoods have additional design review requirements for exterior changes — particularly in older residential areas with historic character. Hamilton Exteriors handles all permit applications, plan submissions, and inspections as part of every project. Typical permit turnaround in San Mateo is 2-3 weeks for standard residential work.