DIY home repairs can be fun, money-saving, and rewarding but when it comes to electrical and plumbing repairs that can result in property damage, injury, and even death, it's best to leave them to the pros. There's less chance of injury or death with DIY plumbing repairs, but unless you're well-versed in the mysteries of compression stops, expansion tanks, J-traps, P-traps, local codes, and permits, you're more likely to make the situation worse. Remember that a DIY plumbing error in one part of the house can cause a chain reaction of plumbing problems in other parts of the house, leading to ever-increasing further repair costs, possible flooding damage, and even more cleanup costs.