Concrete Dry Well Cost Guide

Homeowners and builders typically pay for a concrete dry well based on size, depth, materials, and site access. The cost range reflects variability in formwork, excavation, and drainage needs, with the primary drivers being concrete volume and installation complexity. This article provides a concrete dry well cost, price, and budgeting framework in USD.

Item	Low	Average	High	Notes
Concrete Dry Well (complete installation)	$2,000	$3,500	$7,000	Includes materials, labor, and basic site prep
Per-Cubic-Foot Concrete	$120	$170	$210	Assumes standard 8″ diameter, 3–4 ft depth
Excavation & Backfill	$500	$1,200	$2,500	Depth and access drive costs
Permits & Inspections	$100	$350	$1,000	Region dependent
Gravel/Drainage Material	$150	$350	$800	Underlayment and trench materials
Labor (craftsmen hours)	$800	$2,000	$4,000	Crew size and time influence total

Overview Of Costs

Cost ranges cover typical residential installs with standard materials and mid-slope drainage. Total project ranges usually fall between $2,000 and $7,000, while per-unit ranges can be quoted as $120–$210 per cubic foot depending on concrete strength and wall thickness. Assumptions include backyard or driveway access, standard perforated pipe, and basic soil conditions.

Cost Breakdown

Materials	Labor	Equipment	Permits	Delivery/Disposal	Warranty	Contingency	Taxes
Concrete, Gravel, Pipe	40–60%	15–25%data-formula=”planning_time × crew_rate”>	5–10%	5–8%	2–5%	5–10%	0–8%

What Drives Price

Key price factors include concrete volume, wall thickness, and required reach of perforated piping. Heavier loads or steeper grades raise excavation, backfill, and drainage costs. Concrete grade and strength (compressive strength in psi) also shift material costs, while site conditions such as clay or rock increase labor and equipment time. For smaller projects, DIYers might reduce costs by supplying some materials, but permitting and inspections remain fixed in many jurisdictions.

Regional Price Differences

Prices vary by region due to labor rates and material availability. In the West Coast, expect higher installation costs; the Midwest often provides a middle range; the Southeast can be more economical due to lower labor rates. These regional deltas can be +/- 10%–25% from the national average depending on demand and local codes.

Labor, Hours & Rates

Typical crew sizes include two to three workers with a 1–2 day timeline for standard installations. If trenching or multiple inlets are required, labor can extend to 3–5 days. Labor rates commonly range from $60 to $120 per hour depending on local market conditions and contractor experience. A mini formula note: data-formula=”labor_hours × hourly_rate”>.

Additional & Hidden Costs

Unexpected items can influence total: heavy soil where trenches collapse, required drainage upgrades, or additional backfill to meet compaction standards. Permits, holdbacks, and inspections vary widely by locality and may add 5%–15% to the base price. Landscaping restoration after installation may incur extra charges not included in initial estimates.

Real-World Pricing Examples

Assumptions: residential lot, standard 24″ diameter dry well, 4 ft depth, normal soil.