At Donovan Plumbing & Heating, we provide trusted residential plumbing, heating, and gas services in New Hampshire, proudly serving homeowners from the Seacoast through the Lakes Region, including communities along the Route 125 to Route 16 corridor. Whether you need a quick repair, system upgrade, or full installation, we deliver dependable, high-quality service you can count on.

As a Licensed Gas Fitter and Master Plumber, we bring the experience and skill needed to handle everything from small household fixes to complete home system installations. Our focus is simple—do the job right, do it safely, and make the process easy and stress-free for you.