Welcome to Basement Authorities NH
We're Northern NH and Western Maine's premier specialists in basement waterproofing and structural foundation repair, we even offer 24hr emergency services including clean up and disaster restoration serving Carroll, Coos and Grafton counties in NH and Oxford, Cumberland (including Portland) and York in Maine. We'll diagnose your situation and fix the problems, whether it's foundation wall cracks, a faulty sump pump, leaking window wells, musty, moldy, muddy crawl spaces, high humidity, foundation settling, wet, damp basements and more.
See why we are a clear cut above the rest
Think about what you can do with a basement that is warm and dry.
We are locally owned and employ certified technicians. We are very active within our communities as volunteers and care about the people and businesses we are involved with. We offer some of the best warranty's in the industry including up to a lifetime transferable warranty that stays with your home, a huge advantage if you were to sell your home.
Free in home inspections - We'll listen to your concerns and desires and custom design a system based on your planed use of space.