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

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

Custom Homes Contractor in Lafayette

Serving Lafayette & Contra Costa County
Licensed & Insured
Free Estimates

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Hamilton Exteriors provides professional custom homes services in Lafayette, California. Licensed under CSLB #1078806, we handle all Lafayette building permits and inspections. Call (650) 977-3351 for an estimate.

Local Expertise

Custom Homes in Lafayette: What Local Homeowners Need to Know

Lafayette's housing stock includes 1950s-60s California ranch and split-levels on quarter- to half-acre lots in Burton Valley and 1930s-40s cottages near downtown. For homeowners who want something purpose-built for Lafayette's climate and lifestyle, a ground-up custom home eliminates the compromises of renovating aging structures.

Lafayette's climate — sheltered inland valley with summer highs 88-98°F, Diablo winds funnel through Reliez Valley gap with gusts to 60 mph — directly impacts custom homes performance and material selection. The most common issues we address in Lafayette include aging 1950s-60s roofing stock on second or third replacement cycle and original wood shake needing fire-safe conversion on hillside homes. Hamilton Exteriors selects materials proven for Lafayette's Title 24 Climate Zone 12 conditions and backs every installation with our 50-year warranty.

Lafayette's housing stock spans 5% pre-1940, 15% 1940-1959, 40% 1960-1979. Architectural styles range from 1950s-60s California ranch and split-levels on quarter- to half-acre lots in Burton Valley to 1930s-40s cottages near downtown. Each era and style presents different custom homes requirements — from material compatibility to structural considerations. Our crews know what to expect before they arrive on site.

Lafayette sits in a valley that traps summer heat (high 90s) while its hillside properties face significant wildfire risk as part of the Lamorinda fire zone. Our custom home designs for Lafayette account for these conditions with proper insulation, strategic overhangs, energy-efficient systems, and materials rated for local temperature extremes.

Lafayette features large-lot homes from the 1950s-70s alongside custom hillside estates, with median home values exceeding $2 million in this affluent Lamorinda community. As the existing stock ages, teardown-and-rebuild projects are becoming increasingly common, allowing homeowners to create modern, efficient homes tailored to their exact needs.

The City of Lafayette Building Department handles permits with care for hillside development regulations and fire-safe construction requirements, typically in 4-6 weeks. Hamilton Exteriors (CSLB #1078806) manages the complete custom home permitting process in Lafayette, from plan check through final inspection, with deep familiarity with local building department procedures.

Factory-certified by our manufacturer partners

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

Northern California home with financing options available through Hamilton Exteriors
Financing Options

Financing Options Available For Everyone

Most Northern California exterior projects range from $15,000 for a standard roof replacement to $600,000 for a custom ADU — and paying out of pocket isn't the only option. Hamilton Exteriors partners with multiple lending providers to 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. Whether you're replacing a roof, upgrading siding, or building an ADU, your project manager will walk you through every payment option during your free estimate so you can choose what fits your budget.

Ask about same-as-cash plans during your estimate.

Premium Market

Custom Homes Costs in Lafayette

$300,000–$600,000

Median home value in Lafayette: $1,900,000

Prices reflect Lafayette's premium market and Contra Costa County labor rates. Actual costs depend on home size, materials, and project complexity. We provide free, itemized estimates with no hidden fees.

Get Your Estimate

Rated 4.8 stars by Northern California homeowners across BBB, Trustpilot, Google, and Yelp

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What Custom Home Services Are Available?

Ground-Up Construction by Hamilton Exteriors in Northern California

Ground-Up Construction

Build your dream home from the ground up. We manage every phase — site prep, foundation, framing, electrical, plumbing, and finishing. One team, one point of contact, no miscommunication.

Design & Architecture by Hamilton Exteriors in Northern California

Design & Architecture

Our in-house architects and designers work with you from concept to blueprints. We create floor plans, 3D renderings, and construction documents that bring your vision to life — tailored to your lot, budget, and lifestyle.

Engineering & Permits by Hamilton Exteriors in Northern California

Engineering & Permits

We handle structural engineering, Title 24 energy compliance, soils reports, and all permit applications. Bay Area permitting is complex — we navigate city planning departments daily so you don't have to.

Additions & Renovations by Hamilton Exteriors in Northern California

Additions & Renovations

Expand your home with second story additions, room additions, or full-scale renovations. We handle structural engineering, load-bearing wall removal, and seamless integration with your existing home.

Neighborhoods We Serve

Custom Homes Across Lafayette Neighborhoods

Happy Valley

Happy Valley homeowners frequently choose Hamilton Exteriors for custom homes. Lafayette's housing stock includes 1950s-60s California ranch and split-levels on quarter- to half-acre lots in Burton Valley and 1930s-40s cottages near downtown. With Lafayette's Summer average 90°F with 5-10 days above 100°F, material selection in Happy Valley requires local expertise.

Reliez Valley

In Reliez Valley, homes are predominantly 1930s-40s cottages near downtown. For homeowners who want something purpose-built for Lafayette's climate and lifestyle, a ground-up custom home eliminates the compromises of renovating aging structures.. Our crews are familiar with Reliez Valley's architectural character and building requirements.

The Trails

From The Trails to Springhill, Lafayette homeowners trust Hamilton Exteriors for custom homes that stands up to sheltered inland valley with summer highs 88-98°F. We handle permits, engineering, and installation — you get a single point of contact.

Burton Valley

Custom homes in Burton Valley should complement the established neighborhood character while expressing the owner's vision. Our architect-led design process ensures both goals are met.

Trails

Building in Trails requires understanding of local soil conditions, drainage patterns, and utility connections. We conduct thorough site analysis before breaking ground.

Springhill

The Springhill neighborhood commands premium home values in Lafayette, making custom construction a sound investment. Quality materials and thoughtful design ensure strong appreciation.

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.

Our Latest Projects

Powered by BackOffice
Architectural Shingle Roof Replacement in Antioch Roofing

Architectural Shingle Roof Replacement

Location

Antioch

Products

GAF Architectural Shingles

Completed

Jun 25, 2026

Architectural Shingle Roof Replacement in Fremont Roofing 3

Architectural Shingle Roof Replacement

Location

Fremont

Products

GAF Architectural Shingles

Completed

Jun 10, 2026

Architectural Shingle Roof Replacement in Fremont — photo 2Architectural Shingle Roof Replacement in Fremont — photo 3
New Roof Installation in Hayward Roofing

New Roof Installation

Location

Hayward

Products

GAF Architectural Shingles

Completed

Jun 5, 2026

Full Roof Replacement in Walnut Creek Roofing

Full Roof Replacement

Location

Walnut Creek

Products

GAF Architectural Shingles

Completed

Jun 2, 2026

James Hardie Siding Installation in Pleasanton Siding

James Hardie Siding Installation

Location

Pleasanton

Products

James Hardie

Completed

May 28, 2026

GAF Roof Replacement in Oakland Roofing

GAF Roof Replacement

Location

Oakland

Products

GAF Architectural Shingles

Completed

May 15, 2026

Architectural Roof Replacement in Berkeley Roofing

Architectural Roof Replacement

Location

Berkeley

Products

GAF Architectural Shingles

Completed

Apr 10, 2026

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.

How much does it cost per square foot to build a custom home in Lafayette?

Custom home construction in Lafayette ranges from $350-$600 per square foot depending on finishes, site conditions, and complexity. Hamilton Exteriors provides detailed cost estimates during our design phase.

How long does it take to build a custom home in Lafayette?

A custom home in Lafayette typically takes 12-18 months from ground-breaking to completion. The full timeline including design and permitting spans 18-24 months.

What permits are needed for custom home construction in Lafayette?

Custom homes in Lafayette require building permits, grading permits, and various inspections. Hamilton Exteriors manages the entire permitting process through the local building department.

How do I find a buildable lot in Lafayette?

We work with local real estate agents specializing in Lafayette vacant lots and teardown properties. Our team evaluates soil conditions, utilities access, and zoning before you purchase.

Do you handle design and architecture for custom homes in Lafayette?

Yes. Hamilton Exteriors is architect-led (CSLB #1078806), providing integrated design and construction. This single-source approach saves time and eliminates communication gaps.

What financing options exist for custom homes in Lafayette?

Custom home buyers in Lafayette typically use construction-to-permanent loans that convert to a mortgage upon completion. We work with lenders experienced in Lafayette construction lending.

Can you build a green or energy-efficient custom home in Lafayette?

We design and build to exceed California's Title 24 energy standards. Options include solar-ready design, high-performance insulation, and Energy Star appliances. Many Lafayette homeowners request net-zero capable homes.

What is the resale value of a custom home in Lafayette?

Custom homes in Lafayette typically command a 15-25% premium over comparable production homes. Quality construction and thoughtful design ensure strong long-term value retention.

How do I choose the right custom home builder in Lafayette?

Look for CSLB licensing, architect credentials, a portfolio of completed Lafayette projects, and transparent pricing. Hamilton Exteriors offers all four, plus our local expertise in Contra Costa County building codes.

What architectural styles are popular in Lafayette?

Lafayette custom homes range from modern farmhouse and contemporary to Mediterranean and Craftsman. We design homes that complement the neighborhood while reflecting your personal style.

Ready to start? (650) 977-3351

Call now — we pick up in minutes. Or fill out the form above and we'll call you.

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 →