Heat pump installation
Cold-climate ductless and ducted heat pumps that actually perform at -10°F. We'll size it right and help you claim every Efficiency Maine rebate you qualify for.
Heating · Cooling · Heat Pumps · Indoor Air
Maine weather is extreme.
Your comfort shouldn't be.
Fast, clean, on-time HVAC service across Greater Portland — with flat-rate pricing you see before we start.
Cardinal Heating & Cooling installs and services the systems that keep southern Maine homes warm in February and cool in July. NATE-certified techs, upfront quotes, and a truck that shows up in the window we promised.
22 years
Serving southern Maine homes & businesses
9,000+ systems
Installed and serviced since 2003
NATE-certified
Licensed, insured, and factory-trained techs
Same-day
Emergency service available 24/7 in winter
Services
One company for every season.
Install it, fix it, or keep it running — we handle all of it.
Furnace & boiler service
Oil, gas, and propane heating diagnosed and repaired fast. We carry the common parts on the truck so most no-heat calls are fixed the same visit.
Central air conditioning
Quiet, efficient cooling sized to your home — not oversized to look impressive and then short-cycle all summer.
Ductless mini-splits
Room-by-room comfort with no ductwork to tear into. Perfect for additions, finished attics, and that one room that's always too hot or too cold.
Indoor air quality
Whole-home filtration, humidifiers, and HRV/ERV ventilation that clears out winter stuffiness and pollen without opening a window.
Maintenance plans
Two tune-ups a year, priority scheduling, and discounted repairs. The cheapest way to keep a system out of the emergency-call line.
Why homeowners choose us
No surprises. No upsells. No waiting all day.
Flat-rate, upfront pricing
You approve the price before we turn a wrench. No hourly meter running while a tech "figures it out."
Real arrival windows
We give you a two-hour window and text you when the tech is on the way — your whole day isn't held hostage.
We fix it right the first time
Fully stocked trucks and NATE-certified techs mean fewer return trips and a system that stays fixed.
Rebate experts
We do the Efficiency Maine and federal tax-credit paperwork with you, so the savings actually land in your pocket.
How it works
From call to comfort in four steps
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1
Book online or call
Pick a window that works for you. For no-heat emergencies, we answer 24/7 all winter.
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2
Diagnose & quote
Our tech inspects the system and hands you a flat-rate price before any work begins.
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3
Fix or install
Most repairs are done on the spot. Installs are scheduled fast and finished clean — drop cloths down, debris hauled out.
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4
Confirm & follow up
We test the system with you, register the warranty, and check in after install season to make sure it's still humming.
Our story
A Portland company built on the second call.
Cardinal started in 2003 when Mike Cardinal, a furnace tech tired of watching big franchises nickel-and-dime homeowners, hung his own shingle in Westbrook. His rule from day one: quote it honestly, fix it right, and earn the second call — the tune-up, the AC install, the neighbor's referral.
Two decades later Cardinal runs a fleet of eleven trucks and a team of fifteen techs, every one of them background-checked and factory-trained, and every one living right here in southern Maine. Mike still reads every review that comes in.
11trucks on the road
15local techs
2003family-owned since
Rebates & financing
A new heat pump for less than you think.
Maine has some of the best HVAC incentives in the country. We help you stack them.
Efficiency Maine rebates
On qualifying cold-climate heat pumps. We're a registered partner and file the paperwork for you.
Federal tax credits
Up to a 30% federal tax credit on eligible high-efficiency systems — we'll give you the documentation your accountant needs.
Financing options
Approved monthly plans that often cost less per month than the oil you'll stop buying.
Savings estimate
Tell us your current heating source and we'll model what a heat pump would actually save you each winter — in dollars, not vague promises.
Reviews
Southern Maine trusts Cardinal.
★★★★★
Our furnace died at 11pm in January with a newborn in the house. Cardinal had a tech here within the hour and heat back on before 1am. I'll never call anyone else.
★★★★★
They installed two heat pumps and walked me through every Efficiency Maine rebate. The final cost was thousands less than the franchise quote down the road.
★★★★★
What sold me was the upfront price. No mystery hourly charges, no "oh and you also need this." Honest people, clean work.
★★★★★
Their maintenance plan caught a cracked part before it failed. They literally saved me a no-heat weekend. Worth every penny.
Serving Greater Portland
Let's get your comfort handled.
We serve Portland, South Portland, Westbrook, Scarborough, Falmouth, Cape Elizabeth, Gorham, Windham, and the surrounding towns. Book a service call online in under a minute, or call us for a free install quote.