There are several ways to save money on your new garage build, including the following: Hire a local general contractor instead of finding each specialist individually. They can bring in subcontractors to work on the roof, walls, siding, painting, and any electrical or plumbing work.  Get multiple quotes from experienced local garage builders. Book a job during the low season when pros are less busy.  Purchase a prefabricated garage kit and conduct some of the finishing work yourself. You can also build to size, forgo windows, and eliminate upgrades like electricity, HVAC, and plumbing to make the project more cost-effective.