Business Details
38 Years
experience
Expert Drainage Solutions in Santa Rosa, CA
Dias & Sons Construction has been a trusted name in Northern California's drainage and construction industry for over 30 years. Founded in 1988 by Frank Dias, our family-owned business combines decades of hands-on experience with a commitment to solving complex water management challenges. We specialize in designing and implementing drainage systems, including French drains, sump pumps, and storm drains, tailored to protect residential, commercial, and industrial properties from water damage. Our team's expertise extends to excavation, retaining walls, concrete work, and masonry, ensuring comprehensive solutions for grading and erosion control.With a focus on quality materials and precise installation, we serve general contractors, business owners, and homeowners across Sonoma, Marin, and Napa counties. Our reputation for reliability is reinforced by our status as a licensed, insured, and bonded contractor, dedicated to delivering cost-effective, long-term infrastructure solutions. By maintaining close collaboration with clients and leveraging localized knowledge of regional drainage patterns, we consistently exceed expectations in both project execution and customer service.
Services
French Drains
Catch Basins
Sump Pumps
Channel Drains
Storm Drains
Retaining Walls
Concrete Services
Excavation
Masonry
Tree Removal
Details
- Year established: 1988
Highlights and features
- We offer over 30 years of drainage expertise in Northern California
- Family-owned business prioritizing personalized client solutions
- Licensed, insured, and bonded for client protection
- Specializing in French drains, sump pumps, and storm drainage systems
- Serving Sonoma, Marin, and Napa counties with excavation services
What people say
Superior water solutions
Excellent service
Knowledgeable team
Positive results
Attention to detail
Services
French Drains
French drains redirect water away from foundations using perforated pipes and gravel. Our systems prevent flooding and soil erosion through proper grading and debris-resistant fabric. Ideal for protecting residential and commercial properties in flood-prone areas.
Sump Pumps
Electric sump pumps manage groundwater around foundations in low-elevation areas. Installed in basins beneath structures, these systems automatically pump water away to prevent dry rot and structural damage while maintaining property value.
Retaining Walls
Constructed from concrete, stone, or brick, retaining walls stabilize slopes and prevent landslides. Designed to withstand soil pressure, these structures protect driveways, walkways, and building foundations from erosion-related damage.
Excavation
Backhoe and excavation services prepare sites for drainage systems and infrastructure projects. Specialized in V-ditches for commercial properties, our team ensures proper grading and soil management for effective water diversion.
Concrete Work
We provide stamped patios, driveways, and pathways with reinforced foundations. Using quality materials and proper compaction techniques, our concrete installations combine durability with aesthetic appeal for residential and commercial applications.
People
Frank B. Dias
Founder
With over 30 years in construction, Frank established Dias & Sons in 1988. His expertise in drainage solutions and commitment to client satisfaction have made the company a trusted local resource for water management systems.
Questions
What drainage services do you offer?
We specialize in French drains, sump pumps, storm drains, retaining walls, and excavation services for residential and commercial properties.
How long have you served Northern California?
Dias & Sons Construction has provided drainage solutions since 1988, serving Sonoma, Marin, and Napa counties for over 30 years.
Do you handle both residential and commercial projects?
Yes, we serve homeowners, general contractors, and business owners with customized drainage and construction solutions.
What areas do you service?
We operate in Santa Rosa, Petaluma, Windsor, Healdsburg, Novato, Sonoma, Napa, Marin County, and surrounding Northern California areas.
Are you a licensed contractor?
Yes, we are a licensed, insured, and bonded California general contractor with License #536723.
Reviews (2)
Meggan O'Haidigan
Jun 24, 2019
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Excellent drainage advice. Even though out of my area, Frank and his son, came to my house and spent an hour evaluating and providing recommendations. Also left samples of drainage pipe and cloth to install a drainage system.
James Wright
Jun 16, 2013
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I personally think Frank is a genies when it comes to drainage
he was able to stop the water from going under my house and damaging the houses wood floors witch would of cost thousands to replace them. He did a great job and isn't a pushy sales man, it shows he dose care about whats best for me and not him i like that (not trying to sell something i don't need)
I would recommend him to anyone that has a Drainage Problem and wants an honest opinion!!! Thanks Frank
he was able to stop the water from going under my house and damaging the houses wood floors witch would of cost thousands to replace them. He did a great job and isn't a pushy sales man, it shows he dose care about whats best for me and not him i like that (not trying to sell something i don't need)
I would recommend him to anyone that has a Drainage Problem and wants an honest opinion!!! Thanks Frank
