HVAC Installation & Replacement | Derry, NH

🏠

Whether you are replacing a system that has reached the end of its life or installing HVAC in a new addition or home, The Air Department handles the full scope in Derry, NH and throughout southern New Hampshire. Brad manages the equipment selection, installation, permits, and startup testing himself. No subcontractors, no handoffs.

A full HVAC replacement is one of the larger investments a homeowner makes, and getting the equipment sizing right matters more than most contractors let on. An oversized system short-cycles, which means it never runs long enough to properly dehumidify the air in summer or evenly distribute heat in winter. An undersized system runs constantly and falls behind on the coldest and hottest days. Brad performs a Manual J load calculation on every new installation to make sure the equipment matches the actual heating and cooling load of your home.

New Hampshire offers meaningful incentives for upgrading to high-efficiency equipment. Federal tax credits cover 30 percent of the cost for qualifying heat pump systems, central AC units above a certain efficiency threshold, and high-efficiency gas furnaces and boilers. NH homeowners with Eversource can also access efficiency rebates on qualifying equipment. Brad is familiar with what qualifies and factors it into his recommendations so you are not leaving money on the table.

For new construction and home additions, Brad works directly with builders and homeowners to design the right system from the start. Getting HVAC into the planning phase early means you avoid the compromise solutions that come from trying to fit a system into a space that was not designed for it. Brad is familiar with permit and inspection requirements in Derry and surrounding NH towns and coordinates that process as part of the installation.

What's Included

✓ Gas and propane furnace installation
✓ Central air conditioning installation
✓ Heat pump and mini split installation
✓ Boiler installation (gas, oil, propane)
✓ Complete system replacement
✓ New construction HVAC
✓ Home addition HVAC
✓ Manual J load calculation and equipment sizing

Common Questions About HVAC Installation & Replacement in Derry, NH

How long does a full HVAC system replacement take?

A like-for-like furnace or air conditioner replacement typically takes one day. A more complex installation involving new ductwork, a heat pump, or both heating and cooling in one visit may take two days. Brad will give you a clear timeline during the estimate so you can plan accordingly.

What HVAC brands do you install?

Brad installs equipment from a range of reputable manufacturers and matches the brand to the right application rather than pushing one line exclusively. He installs Mitsubishi heat pump and mini split systems and sources furnaces, boilers, and AC equipment that match the job requirements and budget. He will explain the tradeoffs between options during the estimate.

What tax credits are available for a new HVAC installation in NH?

The federal 25C tax credit covers 30 percent of the cost of qualifying heat pump systems, central AC, and high-efficiency gas furnaces and boilers, up to applicable limits. The credit applies to equipment meeting minimum efficiency ratings. Eversource NH also offers rebates on qualifying heat pumps. Brad factors current incentives into his recommendations so you know what you will net out of pocket.

Can you install HVAC in a home with no existing ductwork?

Yes. Ductless mini split systems are designed exactly for this situation. A multi-zone mini split can heat and cool an entire home without any ductwork by connecting multiple indoor heads to a single outdoor unit. Brad installs these throughout Derry and southern NH and will size the system correctly for your square footage and layout.

Ready to Schedule?

Call or text Brad directly, or fill out the estimate form.

📞 Call (603) 315-7227 Request a Free Estimate

HVAC Installation & Replacement in Derry, NH & Southern New Hampshire