What Warranties or Guarantees Should a Waterproofing Company Offer?
When you invest in waterproofing your basement or crawlspace, you’re not just paying for materials and labor—you’re paying for peace of mind. A reputable waterproofing company should stand behind its work with clear, written warranties and guarantees. If a company can’t explain their warranty in simple terms, that’s a red flag.
At Better Basements and Waterproofing, we believe homeowners should fully understand what protection they’re getting. Here’s what you should expect from any trustworthy waterproofing company.
Table of Contents
- Workmanship Warranty
- System or Performance Guarantee
- Manufacturer’s Material Warranty
- Clear Exclusions and Conditions
- Ongoing Support and Service
- Red Flags to Watch For
- Green Flags to Watch For
1. Workmanship Warranty
This covers how the system is installed. Even the best materials won’t perform properly if they’re installed incorrectly.
A workmanship warranty should include:
- Protection against installation defects
- Coverage for leaks caused by improper installation
- A clearly stated time frame (often several years or more)
If a company avoids talking about workmanship warranties, that’s a concern. Installation quality is everything in waterproofing.
2. System or Performance Guarantee
Many professional waterproofing companies offer a performance guarantee that the system they install will keep your basement or crawlspace dry.
This usually means:
- If water enters the treated area, they will return to fix it
- The guarantee applies to the specific system they installed
- Terms are outlined in writing
This type of guarantee shows confidence in both their products and their process.
3. Manufacturer’s Material Warranty
Waterproofing systems use components like:
- Vapor barriers
- Drainage pipes
- Sump pumps
- Waterproof membranes
- Dehumidifiers
These products often come with manufacturer warranties that protect against defects or failure of the material itself. A good company will explain:
- What parts are covered
- How long the coverage lasts
- What happens if a product fails
4. Clear Exclusions and Conditions
A legitimate warranty should clearly explain what is not covered. For example:
- Damage from plumbing leaks
- Flooding beyond system design limits
- Structural changes made after installation
- Lack of maintenance (like unplugged sump pumps)
Transparency is key. A good company won’t hide these details in tiny print.
5. Ongoing Support and Service
A warranty is only as good as the company behind it. Look for a waterproofing company that offers:
- Easy access to customer support
- Follow-up inspections if needed
- Clear instructions for maintenance
- A local presence (so they’re still around in five years)
If a company disappears after installation, the warranty doesn’t mean much.
Red Flags to Watch For
Be cautious if a company:
- Only offers verbal promises
- Refuses to put warranty terms in writing
- Uses vague language like “lifetime guarantee” without explanation
- Won’t explain what happens if a problem occurs
- Avoids discussing service calls or follow-ups
A professional waterproofing company should welcome questions about their warranty.
Green Flags to Watch For
A quality waterproofing system should come with:
- A workmanship warranty
- A system or performance guarantee
- Manufacturer material warranties
- Clear written terms
- Ongoing customer support
Warranties show that a company believes in its work and is willing to stand behind it. When choosing a waterproofing contractor, don’t just ask about price—ask what happens if something goes wrong later. The right warranty protects your basement, your home, and your investment.
