Graham Walker Builders is a Registered Master Builder, a member of Site Safe and a licensed building practitioner, so you can be sure you are getting the most qualified people for the job. r Builders also has our own joinery factory so we can do any building job you require, from making new window frames to cabinetry to new house builds. In addition to constructing your kitchen cabinets, the team can also create beautiful furniture-to-order for your new home or office space.