
High-efficiency mini splits replace your oil bill and your window units in one move. Mass Save rebates and 0% financing make this the best time there's ever been to switch.
South Shore homes were built around oil boilers and window ACs. A cold-climate heat pump replaces both — quieter, cleaner, cheaper to run, and heavily subsidized to install.

That one room that's never right — the bonus room, the sunroom, the bedroom over the garage. One head, one quiet outdoor unit, fixed.
Two to five indoor heads on one outdoor unit: per-room control for the floors you live on, with the biggest comfort jump per dollar.
Retire the oil boiler entirely. This is the project the $10,000 rebate was built for — and the one we design most carefully.
One free visit. Real rebate numbers. Zero pressure.
Check My EligibilityTell us about your project — we'll reach out within one business day. No pressure, no obligation.