Basement Services 911 is a leader in basement waterproofing in the Mid-Atlantic area. Committed to providing superior work at an affordable price, our no-frills approach allows us to keep our costs low while maintaining high customer service standards. Our technicians are certified and we are fully licensed and insured. Our service comes with a lifetime transferable warranty and we have several available financing options. We've helped thousands of satisfied customers with their basement needs for the last 30 years. Call us today for a free estimate 877-495-9111