Cost to Basement Waterproofing in Memphis, TN (2026)
If you’re budgeting a basement waterproofing in Memphis, most projects run $1,887-$10,292, 14% below the $5,500 national average. What moves that number most is usually one thing: Interior vs. Exterior Approach. On its own it can swing the cost by $1,500 - $20,000 difference, so that’s the decision to slow down on before you sweat the smaller stuff.
Easiest place to save: Start with grading and gutters before spending on interior systems - fixing exterior drainage often eliminates minor water problems for under $500.
$1,887-$10,292 in Memphis
14% below the national average · 0.86x cost multiplier
Expect to pay $1,887-$10,292 for a basement waterproofing in Memphis, about 14% below the national benchmark. The Southeast region's contractor market and material costs account for most of this difference. The detailed breakdown below shows how budget, mid-range, and premium projects compare at Memphis prices.
Cost Breakdown in Memphis
| Line Item | Low | Mid | High |
|---|---|---|---|
| Cost per sq ft | $3 | $5 | $10 |
| Materials | $455 | $2,275 | $7,280 |
| Labor | $325 | $2,847 | $8,133 |
| Permits | $0 | $273 | $455 |
| Total | $780-13% vs. national avg | $5,395-14% vs. national avg | $15,868-14% vs. national avg |
Budget
Interior waterproofing paint/sealant on walls, minor crack injection, improved grading around foundation. DIY-friendly exterior fixes.
Mid-Range
Interior French drain system with sump pump, or exterior waterproofing membrane on one wall. Addresses moderate water intrusion.
Premium
Full perimeter interior drainage system, battery backup sump pump, full exterior excavation and membrane on all walls, French drain, and discharge piping.
Material Options
Material prices below are national averages; availability in Memphis may shift costs slightly.
| Material | Cost/Unit | Best For |
|---|---|---|
| Waterproofing Paint/Masonry Sealer | $0.50-$2/sq ft applied | Slight wall dampness, minor condensation issuesLowest cost, DIY-friendly |
| Interior French Drain System | $50-$100/linear ft of perimeter | Most common solution for water intrusion in finished or unfinished basementsEffective at managing water, less invasive than exterior |
| Exterior Waterproofing Membrane | $8,000-$25,000 whole-house | Severe water problems, new construction additions, comprehensive permanent fixStops water at the source, most thorough solution |
| Epoxy/Polyurethane Crack Injection | $100-$500 per crack | Isolated foundation cracks with water intrusionPermanently seals individual cracks, targeted fix |
| Drainage Board and Dimple Mat | $2-$5/sq ft installed | Wall drainage in partially waterproofed basementsCreates a drainage gap between foundation wall and interior space |
Other Projects in Memphis
Memphis Estimate
Typical Range
$1,887-$10,292
vs. National Average
14% below national
Cost Multiplier
0.86x
Cost Per sq ft
$3-$10
This 0.86x estimate prices Memphis labor from BLS Occupational Employment and Wage Statistics (May 2025) and applies a lighter regional adjustment to materials and permits, which vary less by metro than labor does. Actual bids vary by contractor, project scope, and timing.
See national average costs →