Mitsubishi Diamond Contractor | Greater Portland, Maine
Whisper-quiet comfort in every room, every season. Zone-by-zone control, cleaner air, and year-round heating and cooling from a single system. Rebates up to $9,000 available.
We call within 1 business day
We make the whole process simple, transparent, and stress-free.
We evaluate your home's layout, insulation levels, and heating needs to design the right system: right-sized, right-priced.
We specify the exact Mitsubishi units for your home, calculate your rebate eligibility, and provide a detailed written quote.
Our certified crew installs your system in one day. We handle all Efficiency Maine paperwork and deduct your rebate upfront.
"Our heat pump has been running all winter, even during the cold snaps, and our heating bill is down 40%. The installation crew was professional and done in one day. Horizon handled all the Efficiency Maine paperwork."
"I was skeptical about heat pumps in Maine winters. Horizon walked me through the data, showed me real performance numbers, and now I'm a believer. The system is incredibly quiet and the house is comfortable in every room."
"We got three quotes. Horizon was the most thorough by far. They actually measured our rooms and explained exactly why they were recommending the units they did. The rebate came off our invoice immediately. Couldn't be happier."
