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§ 01—HYDROSTATIC WATER CONTROL

DRAINAGE & FRENCH DRAINS IN FORNEY, TX

QUICK ANSWER

French drains, catch basins, and downspout extensions redirect water away from your foundation. In Houston Black clay, stopping standing water prevents the localized corner heave that cracks brick and sticks doors.

Drainage & French Drains in Forney, TX matter more here than in most places, because Houston Black clay takes water in fast when it's cracked and dry, then barely lets it drain once it's wet. When rainwater ponds against a slab corner, the clay expands violently, causing upward heave that damages finishes and interior doors.

Perforated pipe and gravel in a French drain trench, drainage and French drains in Forney, TX
FIG. 1 — SUBSURFACE FRENCH DRAIN TRENCH WITH WASHED GRAVEL & PERFORATED PIPE
CROSS-SECTION DETAIL · TYPICAL FRENCH DRAINFALL ≥ 1% TO DAYLIGHT
LAYER 1TOPSOIL (2–3 IN)
LAYER 2NON-WOVEN FILTER FABRIC
LAYER 3WASHED GRAVEL
CORE4 IN PERFORATED PIPE
SUBGRADESLOPED CLAY BED
DIAGRAM 1 — DRAINAGE INTERCEPTION SYSTEM (SLOPE ≥ 1/8 INCH PER FOOT)
§ 02—DRAINAGE SPECIFICATIONS

What Is a French Drain and Does My Forney Home Need One?

A French drain is a gravel-filled trench encompassing a perforated subsurface pipe designed to collect groundwater before it reaches the foundation. Your Forney home needs one if water stands within 10 feet of your slab for more than 24 hours following rain.

§ 03—ESTIMATING GUIDELINE

How Much Do French Drains Cost in Forney, TX?

French drains in the Forney area generally cost between $25 and $75 per installed linear foot. A typical residential run of 60 to 80 feet alongside a home commonly estimates between $1,500 and $4,000, depending on root systems and outlet connections.

TECHNICAL INQUIRIES & EVALUATIONS

Drainage & French Drains: FAQs

A surface drain (catch basin) quickly catches standing puddles and surface runoff from paved driveways and patio corners. A French drain is a subsurface trench filled with perforated pipe and washed gravel designed to intercept underground saturation before it pools against the slab.

TICKET Nº 0123 · FIELD EVALUATION DISPATCHKAUFMAN & ROCKWALL CO.

Water ponding by your slab? Fix the water first.

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