Napa sits at the heart of California's premier wine country, where hot, dry summers regularly push temperatures past 100 degrees and winter nights drop below freezing. This extreme thermal cycling demands roofing materials that expand and contract without cracking. Class A fire-rated materials are required in expanding WUI zones east and north of the city, where the 2020 Glass Fire and 2017 Atlas Peak Fire demonstrated the real stakes. Hamilton Exteriors selects materials proven for Napa's Title 24 Climate Zone 2 conditions and backs every installation with our workmanship warranty.
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Roofing Contractor in Napa
500+ projects
Since 2018
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For local cost factors and planning, read our Roofing cost guide for Napa.
For detailed pricing factors, use our 2026 Bay Area roof replacement cost guide.
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Roofing certifications and contractor credentials
Customer-Service Obsessed
Responsive from consultation through project closeout
Architect and general contractor
One accountable team
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Roofing Services 
Choose the Roofing Service You Need
Roof Replacement
A full roof-system scope based on deck condition, water-control details, ventilation, material choice, permits, and cleanup.
Roof Repair
Targeted diagnosis and repair for leaks, damaged roofing, flashing failures, penetrations, and isolated storm damage.
Roof Inspection
A condition review of roofing, flashings, penetrations, drainage, ventilation, and visible deck concerns before a scope is set.
Gutters
Gutter and downspout planning tied to roof edges, drainage paths, fascia condition, discharge points, and site conditions.
Roofing Systems 
Explore Roofing Systems for Your Home
Asphalt Shingles
GAF shingle systems planned around roof geometry, ventilation, flashing, color, and applicable warranty options.
GAF Energy Solar Roofing
Timberline Solar ES 2 energy shingles coordinated with compatible Timberline roofing, electrical design, permits, and utility requirements.
Metal Roofing
Standing-seam and metal-panel options reviewed for slope, penetrations, drainage, finish, and connection details.
Tile Roofing
Clay and concrete tile systems planned around structural capacity, underlayment, flashing, drainage, and replacement access.
Torch-Down Roofing
Modified-bitumen roofing for eligible low-slope sections, planned around deck condition, drainage, penetrations, flashing, and application details.
TPO Roofing
Single-ply TPO membrane systems planned around attachment, insulation, heat-welded seams, drainage, penetrations, and edge details.
Napa's housing stock reflects over a century of growth. Pre-1920 Victorians and Queen Annes line Old Town streets, 1950s ranch homes fill Browns Valley and Westwood, and newer subdivisions extend toward Silverado. Each era presents different roofing challenges, from plank sheathing on historic homes to engineered trusses on modern builds. Our crews assess your home's specific structural requirements before recommending materials or starting work.
With median home prices around $850,000, a quality roof is both protection and investment for Napa homeowners. Insurance non-renewals have become common for homes with aging roofs in fire-prone areas. A Class A roof upgrade often restores eligibility for standard-market policies. Hamilton Exteriors provides the documentation insurers need, including material certifications, fire-resistance ratings, and permit sign-offs from Napa County.
Neighborhoods We Serve
Roofing Across Napa Neighborhoods
Local planning starts with the site, neighborhood context, access, and applicable city review.
Browns Valley
Browns Valley homeowners choose Hamilton Exteriors for roofing that handles Napa's extreme heat and fire risk. This established neighborhood of ranch homes and newer construction sits near WUI zones, making Class A fire-rated materials essential. Our crews are familiar with Browns Valley's mix of roof ages and styles.
Old Town Napa
Old Town Napa's Victorian and Queen Anne homes require roofing contractors experienced with historic structures. Plank sheathing, steep pitches, and period-appropriate aesthetics all factor into material selection. Hamilton Exteriors brings the expertise these heritage homes demand.
Westwood
Westwood's mid-century ranch homes are reaching the age where original roofs need replacement. We evaluate each Westwood home's roof deck condition before recommending materials, ensuring the new installation sits on a solid foundation. Architectural shingles are the most popular choice here.
Bel Aire
Bel Aire residents appreciate Hamilton Exteriors' attention to detail on roofing projects. This residential neighborhood benefits from our full-service approach, including permit handling, debris removal, and gutter integration. We treat every Bel Aire home with the care it deserves.
Silverado
Silverado properties often sit in or near fire zones, making roofing material selection a safety and insurance issue. Hamilton Exteriors installs Class A fire-rated systems with ember-resistant components. We verify your Silverado parcel's fire zone status during our free inspection.
Alta Heights
Alta Heights offers elevated views and hillside exposure that demand roofing rated for wind and UV. Hamilton Exteriors selects materials proven for Alta Heights' conditions, including high-wind-rated ridge caps and UV-stable shingles that maintain their appearance despite intense sun exposure.
Project Management How Hamilton Exteriors
How Hamilton Exteriors
Manages Your Roofing Project
Roof and Deck Review
We inspect the roof covering, accessible deck conditions, flashing, penetrations, ventilation, and drainage before defining the scope.
Roof System Scope
Your proposal identifies tear-off, deck repairs, underlayment, flashing, ventilation, selected GAF materials, permits, and cleanup.
Weather-Tight Installation
We coordinate dry-in, roofing installation, flashing details, ventilation, daily cleanup, required inspections, and site protection.
Warranty and Closeout
We review eligible GAF product and workmanship warranty terms, complete final checks, and provide the project closeout information.
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Google rating 4.6 ★ from 47 public reviews
Roofing Project Reviews
Homeowner feedback from this type of project.
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 🌟 ✨ 💫🌟✨💫🌟✨💫☀️🙌🏾😀👍🏾
Abe Mendoza
a month ago
Very Satisfied with Hamilton Exteriors work replacing roof. Good price and flexible payment plans. They took care of the permits and cleanup. Great communication and response times. Highly recommend.
Ernesto Garlitos
a month ago
The team dis an excellent job on our roof. Carlos and his team are punctual, communicative and kept the worksite clean throughout the project. There was a slight delay in the beginning but the whole process felt smooth and stress free. Alex was generous enough to add in extra service worth $759. Highly recommended, honest roofing work.
Laarni yet
a month ago
They offered a reasonable price for my roof replacement, and overall I’m satisfied with the work. The main issue was that it took quite a while to finish because of the permit process. At one point, I was worried that the roofing materials left at the property might be stolen, so I texted them about it. They responded to my message right away, which I appreciated, and luckily nothing was stolen. Overall, the price was fair, they were responsive when I had concerns, and the project was completed.
Google rating: 4.6/5 from 47 public reviews
Read reviews on Google Mid Market
Roofing Costs in Napa
$10,000–$20,000
Median home value in Napa: $850,000
Prices reflect Napa's mid market and Napa County labor rates. Actual costs depend on home size, materials, and project complexity. We provide free, itemized estimates with no hidden fees.
Get Your EstimateCompare Roofing Systems for Your Home
Swipe to compare all options.
| Feature | Asphalt Shingles | Metal Roofing | Tile Roofing | Torch-Down | TPO | Integrated Solar |
|---|---|---|---|---|---|---|
| Roof geometry | Sloped roofs | Sloped roofs | Sloped roofs | Low-slope roof sections | Low-slope roof sections | Compatible sloped roof sections |
| Early design review | Deck, ventilation, and flashing | Panel layout and penetrations | Structural load and underlayment | Deck, slope, drainage, and application details | Deck, insulation, attachment, and drainage | Solar access and electrical layout |
| Main coordination point | Roof-system warranty | Panel and finish details | Tile access and replacement | Membrane layers, seams, and flashings | Attachment, welded seams, and edge details | Roofing and electrical scope |
| Visual character | Architectural shingle courses | Clean standing seams | Clay or concrete profiles | Granulated or smooth membrane | Light-colored single-ply membrane | Low-profile energy shingles |
| Dedicated guide | Asphalt shingles | Metal roofing | Tile roofing | Low-slope roofing | Low-slope roofing | GAF solar roofing |
Roofing Financing
Plan Your Roof Project With Approved Credit
Financing may be available for eligible roof replacements and larger roofing projects with approved credit. During your roof consultation, we review the scope and explain current lender programs, terms, and payment timing.
Ask which current options fit your roofing project.
Call Now (650) 977-3351 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 roof replacement cost in Napa?
A typical Napa roof replacement costs $15,000 to $55,000 for a standard single-family home (Hamilton Exteriors 2024-2026 project data). Asphalt shingles run $15,000 to $35,000, metal roofs $25,000 to $55,000, and tile roofs $30,000 to $65,000. Prices include tear-off, materials, labor, and cleanup. Permit fees add $500 to $1,200. Fire-zone compliance adds $500 to $1,500 for Chapter 7A materials.
Do I need a permit for a roof replacement in Napa?
Yes. The City of Napa Building Division requires a permit for all roof replacements. Permit fees range from $500 to $1,200. Hamilton Exteriors handles the permit application and all inspections. Visit the City of Napa Building Division for details.
What roofing material is best for Napa's fire risk?
Class A fire-rated materials are required in Napa's WUI zones. Metal roofing offers the highest fire resistance and reflects 70 percent of solar heat. Premium architectural asphalt shingles from GAF, CertainTeed, and Owens Corning also carry Class A ratings. Tile roofing provides excellent fire resistance but adds significant structural load.
How long does a roof replacement take in Napa?
Most asphalt shingle roof replacements take 3 to 5 days. Metal roofs take 4 to 7 days. Tile roofs take 5 to 10 days. Weather delays are uncommon during dry season but can add time during winter months. Permit issuance typically adds 1 to 2 weeks before work starts.
Does homeowner's insurance cover roof replacement in Napa?
Insurance covers sudden, accidental damage from storms, fallen trees, or fire. It does not cover normal wear and tear. After a covered event, your policy typically pays actual cash value or replacement cost depending on your endorsement. Hamilton Exteriors works with major California insurers and documents damage with drone imagery for your claim.
Your Next Step
Plan Your Project With a Clear Scope
Financing may be available with approved credit for eligible projects.
Tell us about your project. We usually call within 3–5 minutes to schedule the next step.
Project Planning in Napa
The city of Napa has approximately 30,000 housing units. The historic Old Town district features homes from the late 1800s and early 1900s, while newer developments in the Browns Valley and Silverado areas have homes from the 1980s-2000s.
The City of Napa Building Division requires permits for roof replacements. Napa's inland valley location produces hot summers, and many homeowners are upgrading to reflective cool roofing to reduce energy costs.
Napa Valley's hot summers (regularly exceeding 95°F) and cool wet winters create significant thermal cycling that stresses roofing materials. Premium architectural shingles and metal roofing handle these temperature swings better than basic 3-tab products.
21634 Redwood Rd Unit F, Castro Valley, CA 94546
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