Hiring a siding contractor in San Francisco is a meaningful decision. We’ve been working in San Francisco since 2010. SF construction has its own challenges — steep hillsides, Victorian building stock, strict DBI permitting, and seismic requirements that most out-of-town contractors get wrong. We know this city’s codes, its neighborhoods, and what it takes to get a project through the Department of Building Inspection without surprises.
What to Look for in a Siding Contractor
Siding failure is usually a moisture problem. Old wood siding cracks, loses its paint seal, and starts absorbing water — which gets into the wall system. Fiber cement solves this permanently: it doesn’t absorb moisture, doesn’t rot, and holds paint far longer than wood. We install it correctly — proper flashing, nailing, gaps, and a complete moisture barrier. Verify the contractor’s CSLB licence at CSLB.ca.gov before signing anything. For most siding work, a B (General Building) licence or the appropriate specialty classification is required.
What a quality siding scope includes:
- James Hardie certified installers
- Wood, fiber cement, and engineered wood options
- Complete moisture barrier installation — no shortcuts
- Matching existing profiles on historic homes where possible
- Trim, flashing, and caulking included — complete system
Permit Requirements in San Francisco
Most siding projects in San Francisco require permits through the San Francisco Department of Building Inspection (DBI). A licensed contractor manages the permit process. Never work with a contractor who suggests skipping permits on significant renovation work.
The IronNest Approach in San Francisco
Old siding loses its seal, lets moisture in, and drives up heating bills. We replace deteriorated wood siding, install fiber cement products like HardiePlank, and handle all trim, flashing, and caulking so nothing comes back later. We have been working in San Francisco long enough to understand the specific conditions this city presents — from building stock to local permit timelines. CSLB Licenced #1130134 — serving San Francisco and the Bay Area since 2010.
Request a Free Estimate
Contact IronNest for a written, fixed-price siding proposal. We provide in-person assessments, clear scopes, and defined timelines. No phone estimates — every project is site-specific.