In addition to managing large construction projects, most general contractors are qualified to install irrigation plumbing, such as sprinkler systems. If your sprinkler system is part of a large landscaping project, a general contractor can manage and oversee other contractors, such as masons and landscapers. Because general contractors typically prefer to take on large projects, they are a poor choice for small installations.
Licensed plumbers are qualified to perform both interior plumbing, such as residential water supply and drains, and exterior plumbing, such as sprinkler systems. For projects that require permits and inspections, licensed plumbers are well versed in navigating through legal approval processes.
Landscaping specialists may be licensed building contractors or unlicensed landscape maintenance professionals. Both types of landscape specialists are qualified to install and repair sprinkler systems. However, if a job requires permits and inspections, many municipalities only allow licensed contractors to perform the work. Licensed contractors who specialize in landscaping often hold a special endorsement which qualifies them to perform plumbing.
Many localities allow unlicensed individuals to run small construction businesses if the projects remain under a specific size and cost. Individuals in charge of such businesses are generally referred to as "handymen." Handymen often charge lower labor fees than licensed individuals and specialists, and because many irrigation projects are small, handymen often have extensive experience working with sprinklers.