In the Boston area, HVAC installation typically runs about $6,000–$13,000 for a central (ducted) system and roughly $4,000–$8,000 per zone for a ductless heat pump in 2026, before MassSave rebates that can offset up to about $8,500 on qualifying high-efficiency equipment.
Last updated June 14, 2026 · Published by Boston Comfort Pros
Installed prices in the Boston area vary mostly by the kind of system. A central, ducted air conditioner or furnace generally falls in the $6,000–$13,000 range, depending on capacity and the condition of existing ductwork (see AC installation and furnace installation). Ductless mini-split heat pumps tend to run about $4,000–$8,000 per zone, so a multi-zone whole-home system scales up from there. Boiler replacements commonly land between $6,000 and $12,000 or more, with oil-to-gas conversions costing extra because of utility coordination and permitting.
The same system can quote very differently from house to house. The biggest swings come from correct sizing to the home's heat loss, whether usable ductwork already exists, venting and electrical updates, and removal of the old equipment. Homeowners on r/hvacadvice frequently point out that quotes move most on ductwork and electrical rather than the equipment itself — which matches the field reality that a clean swap lands lower while added ducts or a panel upgrade push the number up.
For high-efficiency heat pumps, MassSave is the main thing that lowers the out-of-pocket cost in 2026. Whole-home rebates run about $2,650 per ton and partial-home rebates about $1,125 per ton, each capped near $8,500, with larger amounts for income-qualified households and a 0% HEAT Loan to finance the balance. Eligible equipment must be ENERGY STAR Cold Climate certified, on the MassSave Qualified Products List, and use a next-generation refrigerant (R-32 or R-454B). A local installer can confirm which systems qualify; see heat pump installation in Boston for how the rebate path works.
MassSave rebates apply to qualifying high-efficiency heat pumps — equipment that is ENERGY STAR Cold Climate certified and on the MassSave Qualified Products List — rather than to standard furnaces or AC condensers. In 2026 those rebates reach about $8,500, with more for income-qualified households and a 0% HEAT Loan.
A straightforward system swap is often completed in one to two days. Projects that add ductwork, convert fuel types, or require electrical upgrades take longer, sometimes several days.
Equipment pricing stays fairly steady year-round, but scheduling outside peak heating and cooling demand can be easier and occasionally comes with better availability or promotions.
For an exact figure on your home, a free on-site estimate is the only way to price the specifics.
