Adi Tatarko and her husband, Alon, bought their first home in Silicon Valley in 2006. A ranch house built in 1955, the place needed a lot of repairs. Tatarko and her husband were excited to take on the remodeling project—at first, anyway. As costs mounted and they experienced more problems with contractors, Tatarko found the whole process to be a nightmare. “Renovating a home together is much more challenging than running the company together,” she says.