State Line Plumbing and Heating provides expert plumbing, heating, and HVAC services throughout Massachusetts and New Hampshire. We specialize in boiler installation and replacement, water heaters, plumbing repairs, drain and water piping, heating systems, remodels, new construction, gas piping, and emergency plumbing services. As a locally owned and operated company, we focus on fast response times, quality workmanship, and dependable customer service. Whether you need emergency repairs, a new heating system, or complete plumbing for a renovation project, our experienced team is ready to help. Proudly serving residential and light commercial customers on both sides of the line.