Are You Looking for HVAC Contractors in Hooksett, NH?

Eckhardt & Johnson is a premier commercial and industrial mechanical contractor serving New Hampshire since 1917. We specialize in HVAC systems, plumbing, and design/build solutions for diverse markets including healthcare, education, and manufacturing. Our family-owned business combines century-old expertise with modern technology to deliver cost-effective, reliable mechanical systems.

HVAC Unlimited provides comprehensive HVAC, mechanical contracting, and plumbing services to commercial and industrial clients. Established in 2005, we employ OSHA-certified technicians with expertise in installation, maintenance, and emergency repairs. Our services cover New Hampshire and Southern Maine, serving healthcare, education, manufacturing, and government sectors.

G & O Heating & A/C provides expert HVAC and plumbing services to residential and commercial clients in New Hampshire. Established in 1985, we combine technical expertise with customer-focused service, offering installations, repairs, and maintenance for heating, cooling, and plumbing systems. Our licensed technicians prioritize energy efficiency and long-term reliability, ensuring year-round comfort for clients.