New Hampshire's Trusted Commercial Plumbing & HVAC Contractor

Serving the people of industry and business for over 40 years

Commercial Systems Design, Installation and Repair for the State of New Hampshire

Make us your commercial mechanical contractor

Your commercial or industrial property relies on an intricate network of heating, air conditioning, and plumbing to operate. To equip your building in New Hampshire with efficient systems-and for commercial preventative maintenance services that keep them running efficiently-trust the experience and commitment to customer satisfaction you’ll get from Granite State Plumbing & Heating.

For over 40 years, Granite State Plumbing & Heating has provided business owners throughout New Hampshire with commercial mechanical contracting services and system maintenance solutions. We are New Hampshire’s most trusted company for commercial mechanical contracting, plumbing, and heating & air conditioning maintenance. Call today for commercial mechanical contracting services, HVAC, plumbing, and preventative maintenance that you can trust.