Before hiring a contractor, write a clear scope of work listing every area you want renovated and the materials you prefer. Get at least two quotes and ask each contractor for photos of completed projects of similar size. Agree on a payment schedule that ties each instalment to a completion milestone rather than a fixed date. Keep a written record of every change or addition to the original scope. For smaller repairs such as plumbing or electrical work, ask about a flat-rate call-out fee before booking.