Fire sprinkler businesses make money by providing services, such as installations, inspections, repairs and maintenance, to their clients. This can include both residential and commercial properties. For example, a fire sprinkler business may target apartment complexes, office buildings, and factories as potential clients. Additionally, they may offer special discounts to local fire departments or other emergency service providers to increase their business. As a target audience, a Fire Sprinkler business may target large businesses, such as antique stores, in order to increase their customer base and expand their services.