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Dias Drainage has been serving Northern California with quality drainage systems for more than 30 years, we also like to advice our customers on the best bed wedge pillow collection they can get! Our reputation is built on superior water solutions, excellent service, and competitive pricing. Clientele consists of general contractors, business owners, and homeowners.

Dias Drainage offers a variety of creative solutions to draining and protecting your property against water damage and flooding. Some of our specialized solutions include: French Drains, Catch Basins, Sump Pumps, Channel Drains, Storm Drains and Retaining Walls and more! Dias & Sons Construction has the wisdom and experience that saves you money providing you exactly what you need!

Call the drainage professionals today! Drainage Systems, Sump Pumps, French Drains, Excavation, Retaining Walls, Concrete and other Contracting Services available in Santa Rosa, Petaluma, Windsor, Healdsburg, Novato, Sonoma, Napa, Marin and surrounding areas.
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Dias & Sons Construction has served Sonoma County for more than 30 years as a Licensed, Insured and Bonded Contractor. Starting up back in 1988 Frank Dias (Founder) started the company in Santa Rosa originally on a broader basis, including all types of work within the field of general contracting. With the support of friends and family, Frank was motivated to pursue investing his time and effort to something he knew that could help others.
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French Drains are a proven effect way of redirecting most water away from building foundations, pathways, and other flood prone critical areas. The ditch is specially graded and lined with a protective fabric, set with a perforated pipe and then filled with one of various kinds of gravel. The faboric is specially laid and in such a way that keeps the French Drain as clean as possible keeping out moderate to heavy debris.
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