French Drain Installation
New french drain systems designed for your yard's slope, soil, and where water needs to go. We size the trench, gravel, and perforated pipe to the runoff you actually get during monsoon season.
Yard Drainage & French Drains
Standing water after a monsoon storm, soggy low spots, water pooling against the foundation — we build drainage that carries it away.
Serving Chandler, AZ and the surrounding area.
If your Chandler yard holds a pond for a day or two after a monsoon downpour, or water runs toward the house instead of away from it, you are dealing with a problem that our soil makes worse than most people expect. This site is for homeowners around Chandler who need a real answer to standing water — not a rain barrel, but a system that collects surface and subsurface water and carries it to a place where it can safely leave the property.
The reason drainage is stubborn here is caliche. Under a lot of Chandler yards sits a layer of calcium-carbonate-cemented soil that is nearly as hard as concrete and lets almost no water pass through it. When the summer storms drop an inch of rain in twenty minutes, that water cannot soak down. It spreads sideways, finds the lowest point, and sits. A french drain installation gives that water an engineered path — a gravel-packed trench with perforated pipe — so it drains by gravity instead of pooling.
We handle the full range of yard drainage work: new french drain service and system design, and french drain repair when an older line has clogged, crushed, or stopped moving water. Whether the trouble is a back yard low spot, water sheeting off a patio, or runoff collecting against your slab, the fix starts with understanding where the water comes from and where it can go.
Drainage design in Chandler is not the same job it would be in a wetter, softer-soil region, and copying a generic online plan usually fails here. Two local conditions drive every decision: the caliche layer and the pattern of the rain.
Because caliche does not absorb water, the classic advice to "let the drain dry into a gravel pit" often does nothing — the pit fills and stays full. In much of Chandler a french drain needs a real outlet: daylighting to a lower point on the lot, a connection to a properly sized dry well below the caliche, or a route to the street or an approved discharge point. Getting to that outlet frequently means trenching through the hard layer, which is slower and needs the right equipment. A trench that looks fine on paper but has no fall and no outlet will just relocate your pond.
The rain itself is the other factor. Chandler is dry most of the year, then the monsoon delivers short, intense storms between roughly July and September. A drain is not sized for the yearly average — it is sized for that twenty-minute deluge, when water arrives faster than the ground can shed it. That is why pipe diameter, gravel volume, and trench length all get set to the peak, not the typical day.
Arid heat matters too. Long dry spells let fine dust and silt collect in gravel and inlet grates, so systems that see little water for months can still clog. Landscape choices — decomposed granite, drip irrigation, mature tree roots seeking the one wet spot in the yard — all interact with a drain over time. Good design accounts for that from the start.
Three ways we solve standing water and runoff problems in Chandler.
New french drain systems designed for your yard's slope, soil, and where water needs to go. We size the trench, gravel, and perforated pipe to the runoff you actually get during monsoon season.
Ongoing drainage service — assessment, cleaning, and adjustments that keep an existing system moving water. Useful when you are not sure whether to repair or replace.
Fixing lines that have silted up, been crushed by roots or traffic, or lost their fall. We locate the failure point and restore flow instead of guessing.
Chandler and the surrounding East Valley communities, where caliche soil and monsoon runoff create the same drainage challenges.
A french drain is a gravel-filled trench with a perforated pipe that collects water and carries it away by gravity. It helps most Chandler yards where water pools after monsoon storms, because it gives the runoff an engineered path instead of leaving it to sit on hard caliche soil.
Much of Chandler sits over caliche, a hardened soil layer that lets almost no water soak in. When a monsoon storm drops a lot of rain quickly, the water cannot drain down, so it spreads to the lowest point and stays there until it evaporates.
Cost depends on trench length, how deep the caliche runs, and where the water can be discharged. We give a figure after seeing the yard rather than a one-size number, because a short run with an easy outlet is very different from a long trench cut through hard rock.
Sometimes reshaping the surface so water flows away from the house is enough. When the problem is subsurface water, a hard caliche layer, or a low spot with nowhere for water to go, a french drain is usually the more reliable fix. We look at both before recommending one.
Any dry stretch works, and many homeowners plan the work before or after monsoon season so the system is ready for the next round of storms. Trenching is easier when the ground is not saturated, which is most of the year in Chandler.
Describe your standing water or runoff problem — where it pools, how long it lasts after a storm, and what is nearby — and we can talk through whether a french drain, a repair, or another drainage solution fits your yard.
Serving Chandler and the surrounding East Valley.
Practical answers to the questions we hear most in Chandler, AZ.
What drives french drain installation cost in Chandler: caliche depth, trench length, and monsoon runoff. A plain-language breakdown for local homeowners.
A realistic look at DIY french drain installation in Chandler — the caliche problem, tools you'll need, slope, and when to call in help.
A practical do-it-yourself french drain installation guide for Chandler homeowners — planning, digging through caliche, slope, and outlets that work.