Water in the Basement? Let us solve your wet basement problems Over 60% of homes have a leaking basement. You are not alone! Wet basements are the most frequent complaint of homeowners. Most new homes develop basement leaks within 10 to 15 years. Do it right the first time It's almost a cliché. But when it comes to waterproofing concrete, not doing it right the first time can have truly disastrous results. A leaky foundation in a residential building can damage finishes and furnishings, even the structure itself. In a commercial building, water can ruin expensive equipment and disrupt vital work. It all adds up to lost money, wasted time. Our Guarantee GLC contractor guarantees quality of workmanship and high standards of practice, we have the highest degree of knowledge.