Yard Drainage Solutions in San Diego County
French Drains, Channel Drains, and Grading That Move Water Away From Your House.
Standing water, a soggy yard, or runoff pooling against the foundation is a clay-soil problem with a real fix. We install French drains, channel drains, catch basins, and dry wells, and re-grade so water goes where it should, not into your slab.
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Tell us where the water pools. We respond same day, usually faster.
Drainage Solutions for San Diego County Homes
Standing water, a soggy yard, or runoff pooling against the foundation is a clay-soil problem with a real fix. We install French drains, channel drains, catch basins, and dry wells, and re-grade so water goes where it should, not into your slab.
French Drains
A gravel-filled trench with perforated pipe wrapped in landscape fabric that collects subsurface and standing water and carries it to a safe outlet. The standard fix for a soggy lawn, a wet side yard, or runoff sheeting toward the house.
Channel & Trench Drains
Surface channel drains set flush across driveways, patios, and pool decks to catch sheet water before it reaches the garage or house. Cast into concrete or paver flatwork with a grate sized to the flow.
Catch Basins & Dry Wells
Catch basins collect water at low points and pipe it away; dry wells give runoff a place to percolate on lots with nowhere to daylight a drain. We size and place them to your grade and soil, not a guess.
Re-Grading & Downspout Tie-Ins
Sometimes the fix is dirt, not pipe. We re-establish positive slope away from the foundation and tie roof downspouts into a solid outfall so gutter water is carried away instead of dumped at the footing.
What Goes Into a BES Drainage Solutions Project
Four steps, nothing skipped. The same process on every job, big or small.
Free On-Site Diagnosis
We walk the property during or right after you describe the problem, find the low points and the direction water actually travels, and identify where it needs to go. Drainage done without reading the grade is drainage done twice. You get a written price and a plan.
Utility Locate & Excavation
We call 811 for a utility locate, then excavate trenches and basin pits to the depth and slope the system needs. Slope is everything: too flat and the line holds water instead of moving it.
Pipe, Gravel, Fabric & Basins
Perforated or solid pipe is laid to grade, wrapped in gravel and landscape fabric to keep clay fines from clogging it, and connected to catch basins, channel drains, or a dry well. Every joint set for flow, not just assembled.
Backfill, Restore & Test
We backfill, restore the surface, and run water through the system to confirm it drains where it should. We walk the result with you, and if it is a rainy-season job, we make sure the outlet handles real flow.
What We Specify on Every Drainage Solutions Job
The finish only lasts if what is underneath it is built right. Here is what BES specifies on drainage solutions work across San Diego County:
- Perforated pipeRigid perforated PVC or corrugated pipe laid to positive slope, which resists crushing and clogging better than flimsy flex tubing over the life of the drain.
- Drain rock & fabricWashed drain gravel around the pipe and landscape fabric wrapping the trench, which keeps San Diego's clay fines from silting up and clogging the system, the most common reason cheap French drains fail.
- Catch basins & channel drainsNDS and equivalent catch basins, channel drains, and grates sized to the expected flow and set flush in flatwork or at yard low points.
- Dry wellsA gravel-filled or chambered dry well that lets collected water percolate into the soil on lots where a drain cannot daylight to the street or a slope.
- Outfall & downspout fittingsSolid pipe, pop-up emitters, and downspout adapters that carry water to a safe discharge point away from the foundation and off your neighbor's property.
- Concrete tie-insWhere a drain crosses or terminates in concrete flatwork, we form and pour the tie-in clean, an advantage of having the concrete crew and the drainage crew be the same people.
Honest Answers Before You Pick Up the Phone
Cost, permits, materials, and what actually holds up here. No sales spin.
How much does a French drain or yard drainage system cost in San Diego County?
Yard drainage in San Diego County typically runs $1,500 to $8,000+ depending on the length of trenching, the number of catch basins or channel drains, and whether a dry well or long outfall is needed. A single soggy side yard falls lower; a full-property system with multiple collection points runs higher. BES quotes a firm written price after diagnosing the grade on site.
Why does my yard flood or stay soggy?
In San Diego County it is almost always the expansive clay soil, which absorbs water slowly and holds it at the surface, combined with grade that slopes toward the house instead of away. Water sheets to the low point and sits. The fix is collecting it in a drain and re-establishing slope so it leaves, which is exactly what we design.
Is water pooling near my foundation a real problem?
Yes. Water pooling against the slab or footing saturates the expansive clay, which then swells and shrinks and can crack or lift the foundation and flatwork over time. Moving that water away is one of the cheapest ways to protect the most expensive part of the house. It is worth fixing before it becomes a foundation repair.
Do I need a permit for drainage work?
Most residential surface-drainage work does not require a building permit, but grading over certain thresholds, tying into the public storm system, or discharging across property lines can trigger requirements. BES confirms what applies with the City of Poway or County of San Diego before starting.
Will a French drain clog over time?
A cheap one will. French drains fail when clay fines silt into the pipe because the gravel and filter fabric were skipped or undersized. We wrap the trench in landscape fabric and surround the perforated pipe with washed drain rock specifically so the clay cannot clog it, which is what makes the drain last.
Can you fix drainage without tearing up my whole yard?
Usually, yes. We trench only the lines the system needs and restore the surface as we go. On finished landscapes we plan routes to protect existing planting and hardscape, and because we also do the concrete, we can cut and restore flatwork cleanly where a drain has to cross it.
A Poway Crew That Knows Where the Water Goes
BES has worked San Diego County's clay soil since 2016. We have seen what standing water does to slabs and footings, and we fix drainage by reading the grade and building the system to last. Same crew, same written-quote standard.
- We diagnose the grade first, so the drain is built once, not twice
- Perforated pipe wrapped in washed rock and fabric so clay can't clog it
- French drains, channel drains, catch basins, dry wells, and re-grading
- 811 utility locate before any trench is dug
- Same crew does the concrete tie-ins, so flatwork is cut and restored clean
- Licensed (CSLB #1026938), insured, and BBB accredited since 2016
Questions San Diego County Homeowners Ask Before Calling
How much does a French drain cost in San Diego County?
Why does my San Diego yard hold water and stay soggy?
Is standing water against my foundation dangerous?
Do I need a permit for drainage work in San Diego County?
Why do French drains fail, and how do you prevent it?
What is the difference between a French drain and a channel drain?
Can you tie my roof downspouts into a drainage system?
Related Services
Outdoor living projects rarely stop at one trade. Same crew, same written-quote standard across all of it.
Let's Look at Your Drainage Solutions Project
Free on-site quote, written before we start, honored when we finish. No pressure, no obligation.
Licensed & insured (CSLB #1026938) · BBB accredited #1087327 · Serving all of San Diego County from Poway

