French Drain vs. Surface Drain Cost in 2026: Which Drainage System Do You Need?
French Drain vs. Surface Drain: Cost Comparison for 2026 French drains cost $10-$50 per linear foot installed in 2026, while surface (trench) drains run $30-$150 per linear foot. French drains handle subsurface groundwater -- soggy yards, wet basements, and foundation drainage. Surface drains handle visible runoff -- driveway water, patio pooling, and downspout discharge. A typical 50-foot yard French drain costs $500-$2,500, while a 20-foot driveway trench drain costs $600-$3,000. I installed drainage systems on eight properties in Bucks County last year, and the most common mistake I correct is homeowners installing the wrong type. A client in New Hope had standing water in the yard after every rain. He wanted a surface channel drain like his neighbor's driveway. The problem was not surface runoff -- it was a high water table pushing groundwater up through the soil. We installed a 60-foot French drain with perforated pipe and gravel at...
How Much Does a French Drain Cost in 2026? (Interior & Exterior Pricing)
How Much Does a French Drain Cost in 2026? French drains cost $10 to $100 per linear foot installed in 2026, with exterior yard drains running $10-$35/ft and interior basement systems running $40-$100/ft. The average residential project falls between $2,000 and $10,000, while full interior basement perimeter systems can reach $4,000-$17,000. The wide price range comes down to one question: are you digging through your yard or cutting through your basement floor? I installed seven French drain systems last year across eastern Pennsylvania, and the pricing gap between exterior and interior work surprises every homeowner I talk to. On a 120-foot exterior French drain I completed in Lehigh County last September, the total came to $3,360 -- about $28 per linear foot. Two months later, I did a 90-foot interior basement French drain in Allentown for $7,200 -- $80 per linear foot. Same type of pipe, same gravel, same basic...