Stairs leading down to the basement

The Basement Floor Crack: The Results

Earlier this week, we showed you a crack running along a basement concrete floor that was damp in places and asked if you thought it was something that would be covered under the warranty.

To help us out with the answer, we asked two of our resident experts on warranty matters, Dan and Bob.

Dan: “I’m going to have to agree with the builder on this one. This is a case of dampness, likely caused by moisture from beneath the concrete slab. It is definitely not an example of water penetration, because water is not pooling on the ground. Article 1.14 of the Construction Performance Guidelines states that ‘Only actual water leakage through the floor slab resulting in accumulation of water is warranted; dampness or condensation is not considered a warranted condition.’ If the homeowner is not comfortable with seeing the dampness, they should take measures to seal the crack.”

Bob: “I agree. In this case it’s possible the dampness is the result of a temporarily high water table, something that can occur after a heavy snow melt or after a prolonged heavy rainfall. For me, the key takeaway here is that the warranty is very specific about only covering water penetration through the floor slab when it results in the accumulation of water.”

Answer: Not Warranted.

Thank you for your feedback! Every time you let us know what you think, other homeowners are empowered. Stay tuned for our next “Warranted or Not Warranted story.


The goal of this blog is to provide you with general information about the warranty process by sharing real experiences from new homeowners. The blog should not be relied upon as legal advice. For privacy reasons, we will not address or resolve current cases in a public forum, so any comments or questions that are posted on this site that describe individual cases cannot be discussed. If you have a question about your warranty or Tarion generally, we would be pleased to discuss your issue, in the context of your particular circumstances and in confidence. We exercise reasonable care to avoid offensive, illegal or defamatory content from being posted, as well as comments that are intended solely for self-promotion or considered to be spam.