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C-27 Licensed Drainage & Landscape Services
Property Drainage & Flood
Prevention in San Jose
San Jose's clay-heavy soils and seasonal rains can turn a small drainage problem into water damage, erosion, or a compromised foundation. We design and install drainage systems as part of a fully licensed landscape plan, backed by CSLB License #985639.
The Problem
Why San Jose Yards Flood
Many San Jose properties, especially in established neighborhoods with mature trees and older landscaping, sit on dense clay soil that drains slowly. When water has nowhere to go, it pools against foundations, erodes slopes, saturates root zones, and turns backyards into standing water after a heavy rain. Left alone, these conditions can lead to foundation damage, plant and tree stress, and costly repairs down the line.
The right fix depends on the property: the slope, the soil, where water is entering, and where it needs to go. That's why we start with an assessment, not an assumption.
Find Your Fix
What's Your Drainage Problem?
Jump straight to the solution that matches what you're seeing.
Our Services
Drainage Solutions We Provide
We design and install drainage systems as part of a broader landscape plan, addressing the source of the water problem rather than a single symptom.
Surface & Grading Solutions
Uses the natural slope of your property to direct water toward a designated drainage area. Best for properties where water can be moved naturally across the surface, away from homes, lawns, planting beds, and patios.
Reshapes or adjusts the elevation of the soil to improve how water flows across the property. Best for correcting low spots, uneven lawns, soil that slopes toward the house, or areas where water has no clear path to drain.
A shallow, gently sloped channel designed to direct surface water through the landscape. Best for properties with enough space and slope to redirect hillside runoff, control water flow, and reduce erosion around structures.
Uses natural stone or rock to create a defined path for surface water. Controls runoff and reduces erosion while safely directing water down slopes, blending into the surrounding landscape. Best for hillsides.
Underground & Collection Systems
An underground drainage system that collects excess water from the soil and redirects it away from a problem area, typically a perforated pipe surrounded by drainage rock. Best for persistent soil saturation and underground water.
A drainage box installed at the surface with a grate that collects rainwater and runoff, with underground pipe carrying the water away. Best for collecting surface water before it becomes a puddle or causes erosion.
Collects surface water from a specific location and directs it into an underground drainage system. Commonly used around patios, walkways, courtyards, and side yards.
An underground system that temporarily collects stormwater and allows it to gradually infiltrate into suitable surrounding soil. Not appropriate for every property; soil, groundwater, and local regulations are evaluated first.
Collects water in an underground basin and mechanically pumps it to another location. Useful in low areas where there isn't enough natural slope for gravity drainage.
Structure-Specific Drainage
Connects your home's roof downspouts to underground solid drainage pipe, carrying rainwater away from the house. Best for foundation and landscape problems caused by roof runoff.
Controls water as it moves downhill, helping slow, collect, redirect, and safely release runoff. Solutions may include French drains, catch basins, swales, rock channels, drainage pipe, and grading, matched to the property.
Allows water to escape from behind a retaining wall rather than becoming trapped against it, reducing water buildup, soil saturation, and hydrostatic pressure using drain rock, perforated pipe, filter fabric, and drainage outlets.
Drainage Repairs & Improvements
Sometimes the best solution is to repair or improve an existing drainage system rather than install a completely new one. We address clogged drains, damaged pipe, blocked catch basins, standing water, and drainage systems that no longer function properly. Best for properties with existing drainage systems that aren't working as they should.
Get a Repair AssessmentHow We Work
Our Drainage Process
Identify the Problem
We look at where water is coming from, where it collects, and how it currently moves across the property.
Determine the Cause
Drainage problems can result from grading, soil conditions, roof runoff, hardscape, blocked or inadequate drainage systems, or a combination of factors.
Develop a Solution
We recommend the most practical drainage improvement for the property rather than automatically installing the most expensive system.
Install the Drainage System
Depending on the project, our work may include excavation, grading, drainage pipe, catch basins, gravel drainage systems, surface drainage improvements, and restoration of the surrounding landscape.
Restore the Landscape
After drainage work is completed, we restore affected planting areas, lawn, soil, mulch, gravel, and other landscape features.
Why Us
Why San Jose Tree Service & Landscaping
We hold CSLB License #985639, with classifications in both Tree Service (C-61/D-49) and Landscaping (C-27). That combination lets one team handle drainage, grading, and any tree-related considerations on a single property, without coordinating between separate contractors.
We've been BBB-accredited since 2013 and maintain a 4.96-star average across 70 Google reviews.
Common Questions
Drainage & Flood Prevention FAQ
Common signs include standing water more than 24 hours after rain, soggy or spongy areas in the lawn, water pooling near the foundation, erosion on slopes, or mulch and soil washing out during storms. If you're seeing any of these, it's worth having the property assessed before the next rainy season.
It usually comes down to grading, soil composition, and where water naturally wants to go. San Jose's clay-heavy soil drains slowly in some areas, and even small differences in slope or landscaping between two properties can change how water moves. An on-site assessment is the only reliable way to identify the cause on your specific property.
Done correctly, no. That's part of why drainage and grading work benefits from being planned alongside landscape and tree considerations rather than treated as a standalone project. We look at root zones and existing plantings as part of the design so the fix doesn't create a new problem.
Some drainage projects require permits depending on scope and location. We handle drainage work under our CSLB License #985639 (C-27 Landscaping) and can advise on permit needs as part of the assessment.
Timelines vary based on the scope of the project, the size of the property, and the drainage solution involved. We'll give you a specific timeline once we've assessed the site and scoped the work.