Get Commercial HVAC, Plumbing, and Process Systems Solutions for Your Business

Commercial systems design, installation and repair for the state of New Hampshire

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 30 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.

Constructing a new commercial building in New Hampshire?

Make us your Commercial Mechanical Contractor

Building an efficient facility is vital to the success of your business. Granite State Plumbing & Heating has over 30 years of experience with commercial construction services and can provide commercial solutions that are ideal for your new commercial structure.

Call (603)529-3322 today to have a local, established commercial mechanical contractor create and install efficient heating, cooling and plumbing systems for your business. Once you have a state-of-the-art system from Granite State Plumbing & Heating, trust our skilled technicians to provide reliable ongoing maintenance and repair services.

Ensure proper performance of your systems with scheduled Preventative Maintenance

HVAC and Backflow maintenance in New Hampshire

Avoid having to make an emergency repair call and keep your systems running efficiently year-round with maintenance services from Granite State Plumbing & Heating. We offer scheduled maintenance on HVAC and plumbing that are vital to your New Hampshire business. Call today to learn more about our commercial system preventative maintenance programs (603) 529-3331. We service New Hampshire and the surrounding communities of, Concord, Manchester, Nashua, Salem, Keene, Portsmouth, Laconia, and Lebanon.

  • Granite State Plumbing & Heating, LLC

    Weare, NH 03281


    Call Us
    Toll Free: (866) 540-1542
    Main Line: (603) 529-3322
    24/7 Service : (603) 529-3331

  • Granite State Plumbing & Heating, LLC

    10 Technology Drive Suite 1A
    West Lebanon, NH 03784


    Call Us
    Phone:: 603-529-4866

We are so thankful to be honored three years in a row!

We're Where You Need Us

Granite State Plumbing & Heating Serves Locations All Over New Hampshire, Including:

  • Concord
  • Dover
  • Keene
  • Laconia
  • Lebanon
  • Manchester
  • Nashua
  • Portsmouth
  • Rochester
  • Salem

Call us today for all of your HVAC or plumbing needs!