Which Building and Remodeling Professional Does What and When?

When planning to build a new home or remodel an existing one, whom do you call to start the ball rolling on making your dreams a reality? Finding the starting line for a residential building project can feel a bit illusive, so we have created a flow chart to help you navigate these potentially uncharted waters. Note that the timing on the charts pertains to hiring, not necessarily interviewing these professionals.

A list of the primary professionals who may be engaged for your project, along with their educational and professional qualifications, is presented below in alphabetical order. Don’t be surprised by the number and variety of professionals it may take to make your dreams come true.


An arborist advises on the health, pruning, removal and relocation of various types of vegetation and the potential impact thereof on the property or project. The basic professional certification for an arborist is Registered Consulting Arborist. With documented work hours and certification exams, one can advance to a Certified Arborist and Certified Master Arborist, administered by the International Society of Arboriculture (ISA).