We never had a problem with a drain before, so it wasn't a pleasant experience for us when it started backing up. Called one company and they sent their technician , who just looked at the floor flooded with sewage and offered complete drain repair for 9500 dollars. It looked very suspicious how he determined the problem. We needed second opinion on that matter and called Umbrella. Vlad spent with us 3 hours, cleared the drain and then showed us on a tv monitor what caused the problem. He offered to fix it for much less than the previous company and we didn't need to do a complete repair right now. It works perfectly! Would greatly recommend them!