Drainage & Sump
Keep water away from the foundation: an exterior French drain per linear foot with gravel and pipe take-off, a sump pump install by line items, yard / surface drainage, and buried downspout extensions. Trenching near a foundation is excavation — use licensed pros and pull a permit.
Planning estimate: this is a planning estimate from the numbers you enter and standard reference quantities — not a bid or a contract. Get itemized written quotes from licensed contractors and confirm measurements before you commit.
French Drain CostEstimate French drain cost from trench length and your price per foot, plus the gravel cubic yards and perforated pipe the trench needs. Free, no signup.Sump Pump CostAdd up sump pump installation cost from your line items: pump, basin, check valve, discharge line, battery backup and labor. Free, no-signup planning estimate.Yard Drainage CostEstimate yard and surface drainage cost from channel length, your price per linear foot and catch basins. A free, no-signup planning calculator.Downspout Drain CostEstimate the cost to bury downspout drain lines from the number of downspouts, run length each and your price per linear foot. Free, no-signup calculator.
Every Drainage & Sump tool is calculated server-side — visible immediately — with its formula, a worked example and a reference table, and works on the prices you enter. Background reading is in the guides.