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Hamilton Exteriors — roofing, siding, and exterior remodeling in Novato, CA
4.8-star rated by 39 verified Northern California homeowners

CSLB #1078806 · Architect & General Contractor · Building Northern California homes since 2018

Roofing, Siding & Exterior Remodeling in Novato

Serving Novato & Marin County
Licensed Bonded & Insured
$0 Down Financing Available
50-Year Warranty

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Factory-certified by our manufacturer partners

Owens Corning Preferred Contractor
CertainTeed ShingleMaster
GAF Master Elite Contractor
Tesla Powerwall Certified
James Hardie Elite Preferred

Portions of western Novato bordering open space and the Stafford Lake area are designated WUI fire zones. Homes in Indian Valley and Black Point neighborhoods may require Class A fire-rated materials. We work across Novato — including Hamilton, Bel Marin Keys and Indian Valley — with the architect-led design-build approach Hamilton Exteriors brings to every Bay Area project.

Hamilton Exteriors is an architect-led design-build general contractor serving Novato and all of Marin County. We handle roofing, siding, windows, ADUs, home additions, and custom homes — every project led by Alex Hamilton Li, a licensed architect and general contractor (CSLB #1078806). Get your free quote today.

Why Novato Homeowners Choose Hamilton Exteriors

Novato sits in the inland part of Marin County, where the climate is drier and warmer than coastal towns like Mill Valley or Larkspur. That means different material considerations — your roof, siding, and windows need to handle more direct sun and less marine moisture. We have completed projects across Marin and understand how Novato's specific conditions affect material selection and installation.

Our Services in Novato

Roofing in Novato

Novato is in a Wildland-Urban Interface (WUI) zone designated as High or Very High Fire Hazard Severity Zone (FHSZ) by CAL FIRE. This means any roof replacement must use Class A fire-rated materials and ember-resistant vents. We install GAF, CertainTeed, and Owens Corning asphalt shingles, standing seam metal, and tile — all compliant with California Chapter 7A standards. A typical asphalt shingle replacement on a 2,000 sq ft Novato home runs $18,000 to $26,000, including tear-off, synthetic underlayment, and permit fees. See our roofing services page for details.

Siding in Novato

Novato's warmer inland climate means siding materials face less moisture stress than coastal Marin, but UV exposure is higher. We are a James Hardie Elite Preferred Contractor and install fiber cement siding that resists cracking, warping, and fire. HardiePlank lap siding runs $8 to $14 per square foot installed, including trim and flashing. We also install wood, stucco, and metal siding.

Windows in Novato

Energy-efficient window replacements in Novato typically cost $800 to $1,500 per window installed, depending on frame material (vinyl, fiberglass, aluminum-clad wood) and glass package (dual-pane, Low-E, argon fill). Novato follows California's Title 24 energy code, which requires windows to meet specific U-factor and Solar Heat Gain Coefficient (SHGC) ratings. We handle all permitting and inspections. Browse our window replacement services.

ADU Construction in Novato

Novato allows ADUs (accessory dwelling units) up to 1,200 sq ft on single-family lots per California state law, with local zoning overlays. Permit fees in Novato typically range from $2,000 to $5,000 depending on size and complexity. A typical 600 sq ft one-bedroom ADU costs $180,000 to $280,000, including design, permits, construction, and utility connections. Learn more about ADU construction.

Home Additions in Novato

Adding square footage to a Novato home — whether a second story, bedroom, or family room — requires structural engineering for seismic compliance. Marin County is in Seismic Design Category D (moderate to high), per the California Building Code. A 400 sq ft first-floor addition typically costs $150,000 to $250,000. See our home addition services.

Custom Homes in Novato

We build custom homes from the ground up, handling everything from site planning and architectural design through final inspection. Novato's building department requires detailed plans, geotechnical reports for hillside lots, and fire-hardened construction in WUI zones. We have built custom homes in Novato and across Marin. Explore our custom home building.

Novato Permits and Building Department

All exterior work in Novato requires a building permit. The Novato Building Division handles plan review and inspections. Permit fees vary by project type — roofing permits run $300 to $800, ADU permits $2,000 to $5,000. We pull all permits on your behalf and schedule all required inspections.

Why Work with an Architect-Led Contractor?

Most general contractors in Novato are tradesmen-only. Hamilton Exteriors is different: Alex Hamilton Li is both a licensed architect and a licensed general contractor. That means your project gets design thinking from day one — not just construction execution. We evaluate how materials, structure, energy performance, and aesthetics work together, and we catch issues before they become change orders.

Get Your Free Quote for Your Novato Project

Ready to start your Novato home exterior project? Call us at (650) 977-3351 or request your free quote online. We provide on-site inspections and itemized estimates for every project. Hamilton Exteriors — architect-led, locally trusted, CSLB #1078806.

500+

Projects Completed

10+

Years Experience

50yr

Warranty Coverage

4.8

Average Rating

Rated 4.8 ★ from 39 Verified Northern California Homeowners

What Homeowners Say About Our Work

Real reviews from verified Northern California homeowners.

deborah maxey, Hamilton Exteriors customer

deborah maxey

in the last week

Great job and very professional the 1st photo is before and the other 2 is upon completion of work.

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!

R

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.

L

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.

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Local Expertise

Exterior Projects in Novato, California

Novato has approximately 20,000 housing units, making it one of the larger communities in Marin County. Many homes in the Hamilton and Bel Marin Keys areas were built in the 1970s-1990s and are due for roof replacement.

The City of Novato requires building permits for all re-roofing projects. Permit processing times are typically 5-10 business days. Novato's inland Marin location means summer temperatures are warmer than coastal areas.

Portions of western Novato bordering open space and the Stafford Lake area are designated WUI fire zones. Homes in Indian Valley and Black Point neighborhoods may require Class A fire-rated materials.

$950,000

Median home value

55,000

Population

55 minutes

From our office

WUI Zone

Fire-rated materials required

Permit Authority

City of Novato Community Development Department · (415) 899-8900

Local Tip

Novato's Hamilton neighborhood is built on the former Hamilton Air Force Base — the flat terrain and uniform lot sizes make it one of the most efficient areas in Marin for roofing crews, often resulting in faster project completion.

What We Build

Custom Home & Exterior Services in Novato

Custom Homes services by Hamilton Exteriors in Novato

Custom Homes

Ground-up custom homes designed for Novato's Hamilton Field Spanish Colonial Revival (1930s military housing) neighborhoods. Architecture, engineering, permitting, and construction — all under one roof.

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ADUs services by Hamilton Exteriors in Novato

ADUs

Detached ADUs, garage conversions, and junior ADUs in Novato. Full design-build with our 60-day permit guarantee.

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Roofing services by Hamilton Exteriors in Novato

Roofing

Roof replacement and repair in Novato. WUI fire code requires fire-rated materials on western hillside properties. Asphalt shingles, metal, tile, and cool roofing with manufacturer-backed warranties.

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Siding services by Hamilton Exteriors in Novato

Siding

Less redwood siding than southern Marin — stucco and wood-composite common on 1970s-80s tracts. James Hardie fiber cement, stucco, and waterproofing for Novato homes with 30-year product warranties.

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Windows services by Hamilton Exteriors in Novato

Windows

Energy-efficient window replacement in Novato — Title 24 Climate Zone 2 compliant. Less fog condensation but higher solar heat gain than southern Marin — SHGC matters more here.

Explore windows
Our Advantage

Why Choose
Hamilton Exteriors?

Transparent Pricing

Every estimate is itemized line by line — materials, labor, permits, cleanup. You see exactly where your money goes before we start.

Factory Trained Installers

Every crew member is manufacturer-certified and vetted — licensed, bonded, insured, and background-checked before they touch your home.

50-Year Warranty

50-year manufacturer warranty backed by our own workmanship guarantee for the full duration. If anything fails, we fix it — free.

Your Own Project Manager

One dedicated point of contact from first call to final walkthrough. You’ll always know who to reach.

Serving Novato's Best Neighborhoods

Hamilton Exteriors has completed projects across Novato — from Hamilton to Downtown Novato. Here are some of the communities we serve.

Hamilton

Hamilton is one of Novato's most sought-after neighborhoods. Homes here — Hamilton Field Spanish Colonial Revival (1930s military housing) — face specific challenges from warmest and driest of the Marin cities — past the fog belt with summer highs reaching low-to-mid 80s°F. Hamilton Exteriors has completed dozens of projects in Hamilton, from full roof replacements to custom ADUs.

Ignacio

Homeowners in Ignacio trust Hamilton Exteriors for everything from siding upgrades to second story additions. Common issues we address here include sun damage and heat cycling on asphalt shingles — faster granule loss than foggy southern Marin. 1970s-80s tract homes at the 30-40 year replacement window with original builder-grade materials.. Our team knows Marin County's Title 24 Climate Zone 2 requirements and takes pride in work that enhances the neighborhood's character.

Loma Verde

From energy-efficient window installations to ground-up custom homes, Loma Verde residents choose Hamilton Exteriors for our design-build expertise. With Novato's microclimate — Warmest Marin city — 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 (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.

How does billing and financing work?

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.

Are you licensed and insured?

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.

Do I need a permit for my exterior project?

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.

Why Work with an Architect-Led Contractor?

Most general contractors in Novato are tradesmen-only. Hamilton Exteriors is different: Alex Hamilton Li is both a licensed architect and a licensed general contractor. That means your project gets design thinking from day one — not just construction execution. We evaluate how materials, structure, energy performance, and aesthetics work together, and we catch issues before they become change orders.

How much does a general contractor cost in Novato?

General contractor rates in Novato range from $150 to $250 per hour for labor, or 15 to 25 percent of total project cost for a design-build firm (Hamilton Exteriors 2024-2026 project data). Hamilton Exteriors provides fully itemized estimates with per-square pricing for roofing and siding, and lump-sum pricing for ADUs and additions. Every estimate includes materials, labor, permits, and cleanup.

Do I need a permit for a roof replacement in Novato?

Yes. Novato requires a building permit for any roof replacement. Permit fees are $300 to $800 depending on roof size and complexity (Hamilton Exteriors 2024-2026 project data). Your contractor should pull the permit and schedule the final inspection. We handle this for every project.

What roofing materials are required in Novato's fire zone?

Novato is in a CAL FIRE-designated High or Very High Fire Hazard Severity

How long does an ADU take to build in Novato?

A typical 600 sq ft ADU in Novato takes 8 to 14 months from design through final inspection. This includes 2 to 4 months for design and permitting, and 6 to 10 months for construction. Permit review by Novato's building department typically takes 4 to 8 weeks.

Does Hamilton Exteriors serve other Marin County cities?

Yes. We serve all of Marin County, including Mill Valley, San Rafael, Tiburon, Ross, Fairfax, and more. See our full Marin County service area page.

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21634 Redwood Rd Unit F, Castro Valley, CA 94546

Serving Oakland, Berkeley, Fremont, San Jose, Palo Alto, Walnut Creek, San Rafael, Napa, Redwood City & more across Alameda, Contra Costa, Marin, Napa, San Mateo & Santa Clara counties. All 47 cities →

Hamilton Exteriors — Serving Novato, CA

Nearby Cities We Serve

Larkspur Mill Valley San Rafael Antioch Concord Richmond

Services in Novato

Custom Homes in Novato → Home Additions in Novato → ADUs in Novato → Roofing in Novato → Siding in Novato → Windows in Novato →