Most waterproofing contractors offer a warranty, and they can sound similar at first. The details are where they differ, so read yours before you sign.
What it should spell out
- What's covered. Leaks through the repaired area? The whole basement? Only the walls that got drain tile?
- How long. A number of years or "lifetime," and whose lifetime: yours, the house's or the company's.
- What they'll do. Fix the leak at no charge? Pay for damaged finishes, or just the repair?
- Transferability. Whether it passes to the next owner if you sell, and whether there's a fee.
Common exclusions
- Sump pumps and other mechanical parts, which often have a separate, shorter manufacturer warranty
- Damage from power outages, floods or surface water from outside sources
- Areas of the basement that weren't part of the repair
- Problems caused by later changes, such as new finishing that blocks access
Questions to ask
- Can I see the warranty in writing before I sign the contract?
- If water comes back, how quickly will you come out?
- Is there an annual inspection or service requirement to keep the warranty valid?
- What happens to the warranty if the company closes?
A clear, written warranty from a licensed, established local company is usually worth more than a longer promise that's vague about what it covers.