Roofing
Roof inspections, repairs, and replacements planned around condition, drainage, ventilation, material choice, and permits.
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Home Remodeling Contractor in Calistoga
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What We Build 
Available Services in Calistoga
Siding
Exterior wall planning for cladding, weather barriers, flashing, trim, moisture damage, and required permits.
Windows
Window replacement based on opening measurements, frame condition, glass needs, flashing, efficiency, and installation method.
ADUs
Property feasibility, design, permits, utilities, and construction planning for accessory dwelling units and garage conversions.
Additions
Planning for room extensions, second stories, structural changes, building systems, permits, and construction sequencing.
Custom Homes
Site review, architecture, engineering, permits, and construction coordination for a ground-up home.
Decks
Site, structural, material, railing, access, and permit planning for new decks and major deck renovations.
500+
Projects Completed
10+
Years Experience
50yr
Warranty Coverage
4.8
Average Rating
Google rating 4.6 ★ from 47 public reviews
What Homeowners Say About Our Work
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 🌟 ✨ 💫🌟✨💫🌟✨💫☀️🙌🏾😀👍🏾
E
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!
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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.
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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.
Local Expertise
Exterior Projects in Calistoga, California
Calistoga is a small community at the northern end of Napa Valley with approximately 2,000 housing units. The combination of hot springs geothermal activity and extreme summer heat creates unique material considerations.
Calistoga requires building permits for roof replacements. The city is surrounded by wildfire-prone areas, and Class A fire-rated roofing materials are strongly recommended for all properties.
Calistoga is surrounded by wildland areas and was directly impacted by the 2020 Glass Fire. The city strongly recommends and often requires Class A fire-rated roofing. Metal and composite roofing are increasingly popular post-fire.
$900,000
Median home value
5,800
Population
85 minutes
From our office
WUI Zone
Fire-rated materials required
Permit Authority
City of Calistoga Building Department · (707) 942-2763
Local Tip
After the 2020 Glass Fire, many Calistoga homeowners upgraded to metal or Class A composite roofing. The city's experience with wildfire has made fire-resistant materials the default choice, and insurers may offer discounts for verified fire-rated roofs.
Project Management How Hamilton Exteriors
How Hamilton Exteriors
Manages the Work
Itemized Scope
Your proposal identifies included work, selected materials, permit allowances, payment timing, and exclusions before construction.
Relevant Credentials
Hamilton Exteriors holds CSLB #1078806. We show manufacturer credentials only where they apply to the selected system.
Warranty Review
We explain the product and workmanship warranty terms that apply to your selected scope before work begins.
One Project Contact
One contact coordinates the schedule, field questions, inspections, and project closeout.
Serving Calistoga's Best Neighborhoods
Hamilton Exteriors has completed projects across Calistoga — from Downtown Calistoga to Diamond Mountain. Here are some of the communities we serve.
Knights Valley
From energy-efficient window installations to ground-up custom homes, Knights Valley residents choose Hamilton Exteriors for our design-build expertise. With Calistoga's microclimate — Hottest Napa microclimate — valley narrows to a point between Mt — material selection matters. We handle architecture, engineering, permits, and construction.
Frequently Asked Questions
Didn't find the answer to your question? Call Now (650) 977-3351
What areas do you serve?
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.
How does billing and financing work?
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.
Are you licensed and insured?
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.
Do I need a permit for my exterior project?
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.
How much does a general contractor cost in Calistoga?
Most Calistoga general contractors charge $75 to $150 per hour for labor, or quote a fixed price per project (Hamilton Exteriors 2024-2026 project data). At Hamilton Exteriors, we provide fully itemized fixed-price estimates for every project. A typical roofing project on a 2,000 sq ft home runs $18,000 to $28,000; a siding project runs $12,000 to $25,000. Every estimate includes material, labor, permit, and cleanup costs.
Do I need a permit for home exterior work in Calistoga?
Yes. Calistoga and Napa County require building permits for roof replacements, siding replacement, window replacement, ADU construction, and home additions. Permit fees vary by project scope. Your contractor should pull the permit and schedule all required inspections. We handle the entire permitting process for every project.
What roofing material is best for Calistoga's fire risk?
Class A fire-rated materials are required in WUI zones. GAF Timberline HD
How long does a roof replacement take in Calistoga?
Most residential roof replacements take 2 to 5 days. Asphalt shingle roofs on single-story homes typically take 2 to 3 days. Metal and tile roofs take 4 to 7 days. Permit issuance adds 1 to 2 weeks before work begins. We schedule around weather forecasts to avoid rain delays.
Does Hamilton Exteriors serve all of Napa County?
Yes. We serve Calistoga, St. Helena, Yountville, Napa, and all communities in Napa County. See our Napa County service area page for the full list.
21634 Redwood Rd Unit F, Castro Valley, CA 94546
Serving 88 cities across the Bay Area, Greater Sacramento, and Central Valley. Explore all service areas →