Serving homeowners and businesses from the Seacoast through the Lakes Region of New Hampshire—and along the Route 125 to Route 16 corridor—Donovan Plumbing & Heating delivers dependable service backed by experience, professionalism, and pride in our work.

As a Licensed Gas Fitter and Master Plumber, we handle everything from everyday repairs to full system installations, always focused on doing the job right, safely, and with attention to detail.

We believe taking care of your home or business should feel simple and stress-free. As a locally owned and operated company, we’re built on hard work, integrity, and clear communication—showing up every day ready to provide solutions you can trust, whether it’s an urgent repair, planned upgrade, or routine maintenance.