716 Basement Waterproofing Cost in Buffalo, NY
Short answer
Published 2026 estimates for the Buffalo area put a typical basement waterproofing project around $4,600, with most projects between about $1,840 and $9,200 (CostWhale). Full interior drain tile and sump systems are quoted higher, roughly $5,500 to $14,000, and exterior excavation about $9,000 to $22,000 (HomeownerHenry).
Published cost ranges
| Item | Range | Source |
|---|---|---|
| Typical project, Buffalo (low / avg / high) | $1,840 / $4,600 / $9,200 | CostWhale |
| Interior sealant | $500 to $2,000 | CostWhale |
| Interior drainage + sump | $3,000 to $8,000 | CostWhale |
| Interior drain tile + sump system | $5,500 to $14,000 | HomeownerHenry |
| Exterior excavation waterproofing | $9,000 to $22,000 | HomeownerHenry |
| Mortar repointing / crack repair (stone or brick) | $2,000 to $7,500 | HomeownerHenry |
| Interior footing drain tile | $2,000 to $14,000 | Buffalo Environmental & Construction Group |
| Exterior footing drain tile | $4,000 to $18,000 | Buffalo Environmental & Construction Group |
These are third-party published estimates retrieved October 2026, not quotes from 716 Basement. Your price depends on your house.
What drives the price
- Linear feet of wall that need drainage
- Foundation type: stone and brick rubble walls often need repointing first
- Interior vs. exterior approach and excavation access on narrow city lots
- Finished space that must be removed and restored
- Pump quality and whether a backup is included
Frequently asked questions
Why do quotes vary so much?
Companies propose different scopes. Compare linear footage, the drainage method, pump model and warranty, not just the total.
Is the cheapest quote OK?
It can be, if the scope is the same. Ask what is excluded.
Sources
Find pros
Get up to 3 quotes
Tell us about your project and we'll connect you with local pros. Free, no obligation.
Start my free quote request