Custom Homes Contractor in Brentwood

We serve six Bay Area counties — Alameda, Contra Costa, Marin, Napa, San Mateo, and Santa Clara — covering 47 cities from Oakland to San Jose. Our crews are based in Castro Valley, putting us within 45 minutes of every city we serve. We handle permits and know the building codes for each jurisdiction, which matters because requirements and fees vary significantly between cities.

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.

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.

Most exterior projects in the Bay Area 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.

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

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

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

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

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

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

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 Brentwood homeowners request net-zero capable homes.

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

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

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