San Diego, CA Area
Professional Waterproofing Solutions
Medrano Co. has been protecting San Diego properties from water intrusion since 1989, bringing over 37 years of specialized experience in professional waterproofing services. As a family-owned company, we have completed more than 10,000 waterproofing projects across the region, earning a strong reputation for reliable, long-lasting protection against moisture damage.
We provide comprehensive waterproofing solutions designed to prevent water intrusion, reduce the risk of mold growth, protect structural integrity, and extend the life of your property. Every project is handled with precision, using proven techniques and high-quality materials to ensure lasting results in Southern California's unique climate.
As a local San Diego company, we deliver fast and dependable service, including free in-person estimates within 24 hours. Our team is available 24/7 for emergency situations, with same-day service available when urgent waterproofing needs arise. We understand that water issues can be stressful and costly, which is why we also assist with insurance claims and provide practical, cost-effective solutions tailored to your property.
10,000+ Successful Projects
37+ Years of Experience
Fast Service at an Affordable Price
24/7 Emergency Services
Locally Owned
Family Owned
San Diego's outdoor spaces need protection from moisture damage. Our deck waterproofing systems use advanced elastomeric membranes and specialized coatings that block water intrusion while preserving visual appeal.
Our below-grade waterproofing systems shield foundations, basements, and underground structures from groundwater infiltration. We install multi-layered membrane barriers and drainage solutions that prevent hydrostatic pressure buildup and protect against foundation deterioration.
Our French drain installations guide groundwater away from foundations and problem areas. These underground drainage systems stop water buildup and pressure that causes basement flooding and foundation damage.
A professional waterproofing inspection helps identify leaks, weak points, and potential water intrusion before major damage occurs. We provide thorough evaluations and recommend cost-effective solutions to keep your property protected.
Get Started
Contact us today to schedule your free consultation and discover how our professional waterproofing services can safeguard your property.
Free in-person estimates within 24 hours.