There's little doubt that choosing a builder to build or renovate a residential property isn't a straightforward task. Every homeowner wants to know that they've chosen the right builder to build, renovate or extend their home, but what should they look for in a builder so they can rest assured knowing they've made the right choice?Define your needs and source builders accordinglyBefore you start researching builders in your local area, you first need to define your needs. Are you building a new home, renovating your existing home or looking to increase your living space with a conversion or extension? Builders tend to specialise in certain types of projects, so if you're looking for a builder to renovate a luxury property on the Mandurah waterfront, a builder specialising in shop fitouts or garage conversions wouldn't be an ideal choice.Important factors to considerIn addition to relevant experience and expertise, there are a number of additional factors that you'll need to consider if you're to choose the right builder.CommunicationWhether you're building or renovating a property, ensuring that you and the builder are on the same page is crucially important. If a builder comes across as abrupt or seems unwilling to explain themselves, it's safe to say they're not the right choice. Even the smallest renovation project requires open, unencumbered communication between homeowner and builder, so look for a builder who's happy to discuss your ideas, explain the process and break down the costs involved.References and examplesAsking for references is essential if you're to choose the right builder. However, if you're to make the most of the references they provide you with, you need to know the right questions to ask. Asking to see examples of their previous projects is also essential, as this enables you to ensure that they'll be able to work to the specifications and style that you have in mind.Qualifications and insuranceBuilders must be registered with the relevant authorities and hold the relevant qualifications and insurance policies. If you're building or renovating a home in Perth, they would therefore need to be licensed by and registered with the Building Commission in Western Australia. Choosing a builder to build or renovate your home can be a lengthy process. However, it's a process that can't be rushed if you're to choose a builder who's passionate about turning your vision into reality.