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Waterproofing tips & tricks


How long is waterproofing warranty?

When a company does waterproofing work for its customers, both parties sign a legally binding agreement whereby the company guarantees that its work won’t need any repair and is free of defects for a given period of time under certain conditions.

It is worth mentioning that the waterproofing warranty may cover all the work done by the company or just some parts of it.

What’s the purpose of a waterproofing warranty?

A waterproofing warranty guarantees that the work done complies with the highest quality standards. In other words, it provides peace of mind to the customer.

In case the customer encounters any problems with the work while still being under warranty, the company will perform the necessary repair work free of costs.

How long is waterproofing warranty?

Waterproofing warranties range between 5 to 25 years depending on the type of work done, the materials used, and the company in charge of the task. The warranty usually covers the cost of the waterproofing materials. If the materials are defective, the waterproofing company will repair or replace them free of charge.

The duration of the waterproofing warranty depends on the materials that the company guarantees for. In certain cases, the company may agree to a custom warranty under certain conditions.

⇒ Learn more: How much does waterproofing a crawl space cost?

Waterproofing warranty limitations

Keep in mind that waterproofing warranties also carry some disclaimers of liability. You need to carefully read the contract beforehand to know in what cases the contractor won’t assume liability for the waterproofing system’s failure.

For example, the contractor won’t be liable for any damages caused by mold, water entering through the chimney, or other aspects that are out of their control.

As a customer, you need to keep in mind that a warranty is only as good as the company offering it. So, before choosing to work with a particular company, make sure to check their background as well as the feedback they got from other customers.

Avoid working with companies that have shady reputation even if this allows you to cut down on costs. Low quality work will need repair much sooner that high quality work. This will cost you more in the long run.


Waterproofing warranties vary a lot depending on the type of work done, the materials used, and the company in charge of the job. Generally speaking, waterproofing warranties range between 5 to 25 years. Double check the waterproofing warranty clause before signing the contract.

I hope this post answered your questions.

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Last updated in October 2021 to add additional information.

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