Los Angeles · Preliminary estimate
Drainage Contractor Quote in Los Angeles
Standing water, soggy turf, and runoff against the foundation are common LA yard problems. TerrainQuote helps you estimate a drainage contractor quote in Los Angeles based on yard size, slope, soil, and the type of drainage system you need.
Free & instant No phone calls Residential & commercial
Fast estimate
Get a preliminary budget range in about 60 seconds.
Local project matching
Connect with vetted LA-area landscaping providers.
No pressure
No phone calls required. Explore options on your terms.
Budget-based options
See tiered options that fit your real budget.
Cost factors
What shapes your estimate
Every project is different. These are the factors that most influence pricing across LA.
Type of drainage system
Surface drains, French drains, channel drains, and dry wells each have different installed costs.
Linear feet of trenching
Longer runs and deeper trenches drive up labor and material costs.
Soil and rock conditions
LA clay soil and rocky lots take longer to trench and may need extra equipment.
Slope and tie-in point
Where drains can outlet (street, alley, planter, dry well) affects design and cost.
Grading work
Re-grading the yard surface is often required to stop water before it reaches drains.
Access for equipment
Tight side yards common in LA can mean hand-digging instead of mini-excavators.
Common projects
Project examples
Typical project scopes we see across Los Angeles. Use them as a starting point for your own estimate.
Side yard French drain
Single trench run, gravel and perforated pipe
Lower budget tier
Backyard area drains + tie-in
Multiple catch basins, solid pipe to street
Mid budget tier
Whole-property drainage system
Grading, French drains, area drains, and downspout tie-ins
Premium budget tier
How TerrainQuote works
From idea to estimate in 4 steps
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1
Tell us about your project
Answer a few quick questions about scope, size, and finish.
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2
Share your budget and timeline
Pick a budget tier and when you'd like to start.
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3
See estimate options
Compare a transparent low–high project range.
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4
Connect with a local provider
Optionally route the job to a local LA landscaping pro.
FAQ
Common questions
How much does a French drain cost in Los Angeles?
Pricing scales with length, depth, and where the drain outlets. TerrainQuote helps you scope a realistic range for your yard.
How do I know if I need a drainage contractor?
Repeat puddling 24+ hours after rain, water near the foundation, soggy turf, or eroding soil are all signs you likely need professional drainage work.
Will new drainage damage my landscaping?
Existing turf, plants, and hardscape are usually disturbed along trench lines. Most providers include basic restoration in their quote.
How long does drainage work take?
Most residential drainage projects take 1–5 days depending on length, depth, and access.
Do I need a permit for yard drainage in LA?
Standard yard drains usually don't require a permit, but tie-ins to the street or storm system can. Your contractor will confirm during inspection.
Online estimates are preliminary and may vary based on site conditions, material choice, access, measurements, permits, and contractor inspection.