"Ryan, Brad and Casey did a fantastic job. My house has a poured concrete cistern I wanted to convert into a room or maybe storm shelter. Rion Waterproofing cut a 5'x2' door right through the reinforced concrete, turning the cistern into an easily accessible 8'x13' room! AWESOME! It was a surprisingly quick operation: they started cutting around 9am and were done by 1pm. Before they left, they took the time to clean up after themselves, even mopping up the stairs. Not only did they do a good job cutting the door into the cistern, they also made sure to size and place the door so it doesn't compromise the structural integrity of the rest of the cistern or the house. They also used the concrete blocks they cut out to make a landing inside the cistern so it's a small step to get inside, not a giant leap. All told, it was a super affordable and easy way to add a whole new room to my house. If you're thinking about turning a concrete cistern into a room, call Rion Waterproofing. You will not regret it!"