Since each construction job is unique, you must find a reliable and consistent builder with the required experience and know-how to finish their work to a high standard. However, be expected to wait for the best construction workers in your area; the excellent ones are probably busy, but they are almost always worth the journey.
Unless you're looking to hire a Smart home builder to work over an augmentation on your home, you'd like them to have a lot of experience with extension projects. When finding the right builder for a custom home, the obstacles are a bit different. There are smaller numbers of moving parts in smaller projects, and building a home requires extensive project management.