AC Installation in Southern Maine | Southern Maine Mechanical
24/7 Emergency — Call (207) 560-7890
5-Star Rated · Greater Portland, ME

AC Installation in Southern Maine — Stay Cool All Summer

Maine summers are short but genuinely hot and humid. Southern Maine Mechanical installs central air conditioning and ductless cooling systems sized and commissioned correctly for your home, so you stay comfortable through every heat wave. Free in-home estimates across greater Portland and southern Maine.

Licensed & Insured in Maine
24/7 Emergency Available
Efficiency Maine Qualified Partner
EPA Certified
Licensed Gas & Oil
5-Star Google Rated
Free Estimates on Installs

Free In-Home AC Estimates & Proper Sizing

We size every air conditioning system with a real load calculation. An oversized AC cools too fast, leaves the air clammy, and wears out early; an undersized one runs constantly and never quite catches up. We factor your home's insulation, windows, and layout to specify a system that cools evenly and controls humidity.

Central Air & Ductless Mini-Split Cooling

Whether your home has existing ductwork for a central air system or you need a ductless mini-split solution for a home without ducts, we install the right approach. We work with Carrier, Lennox, Trane, Mitsubishi Electric, Daikin, Fujitsu, Bosch, and Samsung equipment, chosen to fit your home and budget — not vendor incentives.

Heat Pumps — Cooling Plus Efficient Heating

Many homeowners choose a heat pump instead of a cooling-only AC because it provides efficient air conditioning in summer and low-cost heating the rest of the year — and may qualify for Efficiency Maine rebates. We'll show you the cost difference so you can decide what makes sense for your home.

Permits, Commissioning & Warranty

We pull required permits, install line sets and condensate drainage correctly, verify refrigerant charge, and commission the system to spec. Every installation includes manufacturer equipment warranties and our own labor warranty, with equipment registered on your behalf.

Ready to Get Started?

Free estimates on all installations. Same-day service available.

(207) 560-7890 Free Estimates
No surprise pricing
Licensed & insured
Locally owned
24/7 emergency service

Get It Done Now, Pay Later

Financing Available for HVAC Installations

Southern Maine Mechanical offers flexible financing options for qualified customers on heat pump installations, boiler replacements, furnace replacements, central air systems, and other HVAC projects.

Promotional Financing

  • 0% interest if paid in full within 6, 12, or 18 months
  • Deferred interest may apply if the balance is not paid in full by the end of the promotional period

Fixed Monthly Payment Plans

  • Reduced APR options may be available
  • Common terms may include 60-month financing
  • Great for larger heat pump, boiler, furnace, and central air installations

Example Monthly Payments

  • $8,500 system~$142/mofor 60 months
  • $12,000 system~$200/mofor 60 months
  • $20,000 system~$333/mofor 60 months

Financing is subject to credit approval. Terms, rates, promotional periods, and monthly payments may vary. Promotional financing may include deferred interest. Southern Maine Mechanical does not guarantee approval or specific loan terms.

Signs It's Time to Install AC

Relying on window units that are loud and inefficient
Rooms that never cool down on hot, humid days
Sticky, high indoor humidity in summer
An aging AC that's expensive to keep repairing
Adding cooling to an addition or finished attic
Wanting whole-home, even temperatures
Interest in a heat pump for cooling and heating
Poor indoor air quality from open windows

Frequently Asked Questions

HVAC Emergency? We Answer 24/7.
Talk directly to a technician — not an answering service.
(207) 560-7890