Bay Area Siding Contractor. Transform Your Home's Curb Appeal

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.

Bay Area siding costs vary by material. Vinyl siding runs $975 to $1,275 per 100 sq ft installed. James Hardie fiber cement siding — our most popular choice — costs $2,100 to $2,325 per 100 sq ft. Stucco remediation and re-application averages $1,950 per 100 sq ft. A typical 2,000 sq ft Bay Area home costs $12,500 to $28,000 for full siding replacement depending on the material chosen and the number of stories. Multi-story homes require scaffolding, which adds $1,500 to $4,000 to the project cost. Homes with significant dry rot or water damage behind the existing siding will also need sheathing repairs before new siding is installed. Every Hamilton Exteriors estimate is fully itemized — materials, labor, trim, weather barrier, and disposal costs are all listed separately so you can compare options.

James Hardie developed its HZ5 fiber cement formula specifically for coastal and high-humidity climates like the Bay Area. It resists moisture, fog, salt air, and temperature swings that cause wood and vinyl to deteriorate. Fiber cement siding delivers an 86% return on investment at resale (Remodeling Magazine, 2024 Cost vs. Value Report), making it one of the highest-ROI exterior upgrades available. Hamilton Exteriors is a James Hardie Elite Preferred installer — the highest certification level — meaning our crews are factory-trained and your installation carries an extended warranty.

James Hardie fiber cement siding projects generally run 1 to 2 weeks depending on your home's square footage, number of stories, and architectural complexity. Vinyl siding is faster — typically 3 to 5 days. Every project includes removal of old siding, inspection and repair of underlying sheathing, installation of a weather-resistant barrier, new siding, and trim and caulking. If we discover moisture damage or dry rot during tear-off, repairs are completed before new siding goes on — this can add 1 to 3 days but prevents hidden problems from continuing behind the new material. We work in sections around your home so exposed walls are never left unprotected overnight. A dedicated project manager keeps you updated daily with progress photos.

Fiber cement (James Hardie) is made from cement, sand, and cellulose fibers — it will not melt, warp, or crack in Bay Area temperature swings. It carries a Class A fire rating, resists termites and rot, and can be painted any color. Vinyl siding costs less upfront but has a shorter lifespan (20 to 30 years vs. 50+ for fiber cement), can warp in direct sun, and melts in fire. For Bay Area homes — especially in fire zones or near the coast — fiber cement is the stronger long-term investment.

Yes. The average water damage insurance claim in the Bay Area is $12,500, making prevention far more cost-effective than repair. Properly installed siding with a weather-resistant barrier (WRB) is your home's primary defense against water intrusion. Hamilton Exteriors installs a full WRB system behind every siding project, including flashing around all windows, doors, and penetrations. We use both peel-and-stick flashing at critical junctions and mechanically fastened house wrap across wall surfaces, creating a continuous drainage plane that channels water down and out. We inspect the underlying sheathing during removal and repair any existing moisture damage before new siding goes on. Bay Area coastal homes are especially vulnerable — salt-laden fog accelerates wood decay and can cause water damage behind siding that appears intact from the outside.

Yes for most Bay Area homes. Fiber cement lasts 50+ years vs. 20 to 30 for vinyl, delivers 86% ROI at resale vs. roughly 70% for vinyl (Remodeling Magazine 2024), carries a Class A fire rating required in WUI zones, and resists Bay Area fog and moisture better than any alternative. The higher upfront cost ($2,100 to $2,325 per square vs. $975 to $1,275 per square for vinyl) pays for itself through longer lifespan and higher resale return. Vinyl remains a smart choice for rental properties and budget-conscious projects where fire zone compliance is not required.

Common signs include warping or buckling panels, soft or spongy spots (indicating moisture damage behind the siding), peeling paint that returns within 1 to 2 years of repainting, visible cracks or holes, mold or mildew growth between panels, rising energy bills from air infiltration, and dry rot visible at corners or around windows. If damage affects more than 30% of your siding, full replacement is more cost-effective than patching. Hamilton Exteriors provides a free exterior inspection. We check every wall, corner, and trim piece before recommending repair or replacement.

Yes. James Hardie fiber cement siding is significantly denser than vinyl and reduces exterior noise by 20 to 25% compared to single-layer vinyl. Homes near highways (101, 880, 280), BART lines, or Oakland/SFO airport flight paths benefit most. Adding an insulated weather barrier behind fiber cement further improves sound dampening. Stucco also performs well for noise reduction due to its mass and continuous surface.

Dry rot is fungal decay that destroys wood framing when moisture penetrates behind siding. Bay Area fog belt homes from Daly City to Half Moon Bay are especially vulnerable. Modern siding installation includes a weather-resistant barrier (WRB) with integrated flashing at every window, door, and penetration to create a continuous drainage plane. Fiber cement and vinyl siding are both immune to rot themselves, but the WRB system behind them is what protects your framing. Hamilton Exteriors inspects all underlying sheathing during tear-off and repairs existing damage before new siding goes on.