Project. Cost. Baseboard drainage channels. $30 to $150 per linear foot. Cement waterproofing. $20 to $22 per square foot. Concrete sealing. $1 to $3 per square foot ...

Jennifer F from Toronto Canada writes: Hi Mike, My husband and I live in a 90-ish year old house with a sometimes leaky unfinished basement. It hasn't leaked since we re-routed our eave downspouts ...