Business Details
38 Years
experience
Expert Drainage Solutions in Santa Rosa, CA
Founded in 1988, Dias & Sons Construction has established itself as a trusted leader in drainage solutions and general contracting across Northern California. Our family-owned business combines decades of hands-on experience with a commitment to quality, delivering tailored water management systems that protect properties from damage and flooding. Specializing in French drains, sump pumps, retaining walls, and excavation, we serve homeowners, contractors, and businesses throughout Sonoma, Marin, and Napa counties.Our team prioritizes client needs, leveraging deep local expertise to design cost-effective, durable solutions. As a licensed, insured, and bonded contractor, we uphold the highest standards of professionalism and reliability, ensuring every project meets our exacting benchmarks for safety and performance. With over 30 years of service, we remain dedicated to innovation and excellence, earning the trust of our community through consistent results and personalized service.
Services
French Drains
Sump Pumps
Retaining Walls
Excavation
Concrete Work
Catch Basins
Channel Drains
Storm Drains
Masonry
Drainage Systems
Details
- Year established: 1988
Highlights and features
- We have over 30 years of experience in drainage and construction services.
- Family-owned and operated since 1988.
- Licensed, insured, and bonded general contractor.
- Specialize in French drains, sump pumps, and retaining walls.
- Serve Sonoma, Marin, and Napa counties with local expertise.
What people say
Excellent customer service
Expertise in drainage
Positive results
Knowledgeable team
Attention to detail
Services
French Drains
French drains redirect water away from foundations using gravel-lined trenches with perforated pipes. Our systems prevent flooding by channeling water to safe exit points. Ideal for flood-prone areas, they protect properties with durable, low-maintenance solutions.
Sump Pumps
Sump pumps remove standing water from basements or low-elevation areas using electric-powered systems. Installed beneath homes, they prevent foundation damage by redirecting water away from structures. Essential for moisture-prone properties, ensuring long-term equity protection.
Retaining Walls
Retaining walls hold back soil or rock to prevent erosion and landslides. Constructed from concrete, stone, or brick, they stabilize driveways, walkways, and slopes. Custom designs enhance property aesthetics while providing structural support and water management.
Excavation
Excavation services prepare sites for drainage systems, including V-ditches for commercial properties. Our backhoe and excavation expertise ensures precise grading and soil removal. Tailored solutions support efficient water diversion, protecting properties from invasive moisture.
Concrete Work
Concrete services include stamped patios, driveways, and pathways with reinforced foundations. We use quality materials and rebar for durability, ensuring long-lasting surfaces. Finishing touches enhance aesthetics while maintaining structural integrity for residential and commercial projects.
People
Frank B. Dias
Founder
Frank Dias founded Dias & Sons Construction in 1988, leveraging decades of experience in drainage and general contracting. His focus on client needs and technical expertise has built a reputation for reliable, innovative solutions in Northern California.
Questions
What drainage solutions do you offer?
We specialize in French drains, sump pumps, catch basins, retaining walls, and storm drains to manage water effectively for residential and commercial properties.
Do you serve areas outside Santa Rosa?
Yes, we serve Sonoma, Marin, Napa counties, and surrounding areas in Northern California with customized drainage and construction services.
Are you licensed and insured?
Yes, we are a licensed general contractor (Lic. #536723), insured, and bonded to ensure safe, compliant service for all projects.
How long have you been in business?
We have served Northern California since 1988, providing drainage and construction expertise for over 30 years as a family-owned company.
Can you handle commercial drainage projects?
Yes, we design and install large-scale systems for wineries and businesses, including V-ditches and storm drains tailored to commercial needs.
