Hamel & McAlister, Inc.

Andover requires a building permit for any HVAC system replacement, with the Building Department at the Town Offices on Bartlet Street handling review. A separate electrical permit covers heat pump circuits, and National Grid coordinates the meter inspection on panel upgrades. Standard permit turnaround is generally a few business days. The Andover Center Historic District around Phillips Academy and the downtown common requires Historical Commission review for any exterior change visible from a public way — including outdoor heat pump condensers. Ballardvale also has a designated historic district. Side or rear placement out of public view usually clears review without a hearing. Most established local contractors handle the filings as part of the project.

Andover HVAC pricing runs among the higher bands in Essex County because of the housing stock — larger homes with multiple zones, longer line runs, and more involved electrical work. A full whole-home heat pump retrofit on a 3,000–4,000 square foot home typically runs $25,000–$40,000 before rebates; on the largest estates, retrofits can exceed $50,000 with multi-zone systems and dedicated condensers. A single-zone ductless mini-split is $4,800–$8,000 installed; a gas boiler swap is usually $8,000–$13,000. Tight historic-district constraints around Phillips Academy add design time.

Massachusetts requires a written contract and a Home Improvement Contractor registration for most residential hvac work; ask for the registration number and check it before paying a deposit.

More on permits, costs, rebates and common questions, plus every other hvac contractor serving the town, on the HVAC in Andover page.