Roofing
Roof inspections, repairs, and replacements planned around condition, drainage, ventilation, material choice, and permits.
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Roof inspections, repairs, and replacements planned around condition, drainage, ventilation, material choice, and permits.
Exterior wall planning for cladding, weather barriers, flashing, trim, moisture damage, and required permits.
Window replacement based on opening measurements, frame condition, glass needs, flashing, efficiency, and installation method.
Property feasibility, design, permits, utilities, and construction planning for accessory dwelling units and garage conversions.
Planning for room extensions, second stories, structural changes, building systems, permits, and construction sequencing.
Site review, architecture, engineering, permits, and construction coordination for a ground-up home.
Projects Completed
Years Experience
Warranty Coverage
Average Rating
Public reviews from Northern California homeowners.
Chandra Williams
a week ago
Roof City did an excellent job on my roof. They were professional, fast, efficient, and clean. They over- delivered on their promise to do a five- star job in two days, which included all materials and permits needed. They deserve a 10 star rating 🌟 ✨ 💫🌟✨💫🌟✨💫☀️🙌🏾😀👍🏾
Eric W.
via Yelp
Hamilton Exteriors did an amazing job on my roof. The team was professional, and the quality of work was top-notch. Highly recommend!
Robert H.
via Angi
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.
Laura G.
via Nextdoor
Hamilton Exteriors repaired extensive dry rot damage on our home's exterior. Their attention to detail and commitment to quality were evident throughout the project. Our home looks better than ever.
Your proposal identifies included work, selected materials, permit allowances, payment timing, and exclusions before construction.
Hamilton Exteriors holds CSLB #1078806. We show manufacturer credentials only where they apply to the selected system.
We explain the product and workmanship warranty terms that apply to your selected scope before work begins.
One contact coordinates the schedule, field questions, inspections, and project closeout.
Hamilton Exteriors has completed projects across San Mateo — from San Mateo Park to North Central. Here are some of the communities we serve.
From energy-efficient window installations to ground-up custom homes, Baywood residents choose Hamilton Exteriors for our design-build expertise. With San Mateo's microclimate — Moderate Peninsula: summer highs 70-82°F, winter lows 40-48°F — material selection matters. We handle architecture, engineering, permits, and construction.
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We serve Northern California across three regions: the San Francisco Bay Area, Greater Sacramento, and the Central Valley. Our published guides cover 14 counties and 88 cities. Our Castro Valley and Sacramento offices support local estimating, permit coordination, and project planning across these regions.
Financing may be available for eligible projects with approved credit. Available terms depend on lender approval, project scope, and current programs. Your project manager can review the options that apply before work begins. We also accept checks, ACH, and major credit cards.
Yes. Hamilton Exteriors holds CSLB License #1078806, active general liability coverage, and the required contractor bond. We also hold GAF Master Elite and James Hardie Elite Preferred credentials. We can provide current proof of coverage before work begins.
Permit requirements depend on the project scope and local jurisdiction. Hamilton Exteriors coordinates required applications, plan documents, corrections, and inspections. Permit fees and allowances appear in the proposal before construction begins.
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.
21634 Redwood Rd Unit F, Castro Valley, CA 94546
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