Jamison Basement Waterproofing has been the most trusted basement waterproofing company in greater Philadelphia for over 25 years. Our family is here for your family, to ensure the health, and protect the value of your greatest investment…your home! You can trust that our highly trained, caring staff will treat you with compassion and respect, while providing a custom solution to the problems you are experiencing in your own home. We provide basement waterproofing solutions, sump pumps & battery backups, basement egress window installations, crawl space encapsulation, moisture dehumidification, foundation repair & stabilization, and much more.