Serrato Builders is Sylmar's expert C-8 licensed foundation contractor. We specialize in structural concrete foundations, hillside foundations with caissons and grade beams, ADU foundations, concrete slab foundations, and foundation replacement. Licensed, bonded, and insured — we pull permits and build foundations engineered to last a lifetime.
A building is only as strong as the foundation it sits on. In Sylmar, where hillside terrain, expansive soils, and seismic considerations all come into play, getting the foundation right isn't just important — it's essential. Serrato Builders brings decades of foundation experience to every Sylmar project. As a C-8 licensed contractor (#1115625), we pour structural concrete foundations that meet and exceed California's strict building codes.
Sylmar's location at the base of the San Gabriel Mountains means many properties require specialized foundation solutions. Hillside homes need caissons and grade beams. Flatland properties may need soil reports and engineered slabs. We work closely with structural engineers and geotechnical consultants to ensure your foundation is designed specifically for your property's conditions.
Sylmar's hillside properties require foundation systems that go far beyond a simple slab. We specialize in drilled caissons — deep concrete piers that anchor into stable soil or bedrock — connected by reinforced concrete grade beams. This system provides the stability and structural integrity needed for homes built on slopes. Our team handles every aspect: drilling, reinforcing steel, concrete pouring, and coordination with structural engineers and city inspectors.
Building an Accessory Dwelling Unit (ADU) in Sylmar? The foundation is the first — and most critical — step. We pour ADU foundations that meet all California ADU regulations and City of Los Angeles building codes. Whether your ADU needs a slab-on-grade foundation or a raised foundation with crawl space, we handle the excavation, formwork, reinforcement, concrete placement, and inspection coordination.
Older Sylmar homes — especially those built before modern seismic codes — may need full or partial foundation replacement. Cracks, settling, moisture intrusion, and seismic vulnerability are all signs your foundation needs attention. We assess your existing foundation, recommend the right solution, and execute the replacement with minimal disruption to your property.
Foundation costs vary significantly based on type (slab vs. hillside caissons), size, soil conditions, and engineering requirements. A standard slab foundation for a house might range from $15,000-$40,000, while hillside foundations with caissons can be $50,000+. We provide detailed estimates based on your specific project and engineered plans.
For most new construction, additions, and ADUs in Sylmar — yes. A geotechnical (soils) report is typically required for permitting. We can recommend qualified geotechnical engineers and coordinate the entire process for you.
A standard slab foundation can be completed in 1-2 weeks. Hillside foundations with caissons typically take 3-6 weeks depending on drilling depth, number of caissons, and inspection schedules. We'll give you a clear timeline during your estimate.
Get your free foundation estimate today. We'll assess your Sylmar property, discuss your project, and deliver a detailed quote.