Heritage Home Service is the premier residential plumber, HVAC contractor, and electrician serving Hudson, Nashua, and Pelham. Our licensed team specializes in water heater repair, drain cleaning, and sewer line cleaning. As a leading electrical installation service, we provide electrical panel upgrades, surge protection, and home generator installation. Our residential expertise includes air conditioning repair service, furnace installation, and high-efficiency AC maintenance. For 24/7 emergency service, ductless mini-split installation, and reliable home comfort, trust Heritage Home Service in Litchfield, Merrimack, and across Hillsborough County. Expert technical care for your home.