Keeping Maine Homes Comfortable Year-Round
Citizen Energy LLC is your local HVAC team — honest work, fair prices, and a crew that treats your home like their own.
Licensed & Insured
Fully licensed in the state of Maine
Serving Maine Since 2020
Over a decade of local HVAC expertise
24-Hour Emergency Service
We're here when you need us most
What We Do
From the first cold snap to the hottest July, we've got every corner of your home's comfort covered.
Heating Installation & Repair
Whether your furnace needs a tune-up or it's time for a full replacement, we'll keep the cold out. We work with all major brands and fuel types.
Learn More
AC Installation & Repair
Maine summers can surprise you. We install and service central air and ductless systems so you're ready when the heat arrives.
Learn More
Heat Pumps
Modern heat pumps are the smart choice for Maine homes — efficient heating and cooling in one system. We're certified installers for leading brands.
Learn More
Indoor Air Quality
Breathe easier. We install air purifiers, humidifiers, ventilation systems, and filtration upgrades to make your home's air as clean as Maine's outdoors.
Learn MoreWhat Our Neighbors Say
Citizen Energy came out the same day our furnace died in January. Had us warm again by evening. These guys are the real deal.
Dave M.
Portland, ME
We had a heat pump installed last spring and our energy bills dropped noticeably. The crew was professional, clean, and explained everything.
Sarah K.
Scarborough, ME
Honest pricing, no upsells, and they showed up on time. Hard to find that combination. We won't call anyone else.
Tom & Linda R.
Falmouth, ME
Ready to Get Comfortable?
Call us or fill out a quick form and we'll get back to you the same day.