Serving Central & Southern Maine
Heating & Cooling

Ductless Mini-Split Systems

Whether you want to heat and cool a single room, an addition, or your entire home, mini-splits deliver customizable comfort, energy savings, and whisper-quiet operation.

What We Offer

Energy Efficiency

Advanced heat pump technology with inverter-driven compressors that adjust output based on demand, reducing utility bills.

No Ductwork Required

Quick and easy installation without invasive construction. Perfect for older homes, basements, and additions.

Quiet Operation

Whisper-quiet sound levels with sleek, compact wall or ceiling-mounted designs.

Year-Round Performance

Operates efficiently in Maine winters with hyper-heating technology effective down to -13°F.

Superior Air Quality

Multi-stage filtration removes dust and allergens. No ductwork means easier maintenance.

Ductless Mini-Split Systems

Why Choose Knowles Mechanical

Zone control for customized comfort in each room
Lower energy bills compared to traditional HVAC
Fast, minimally invasive installation
Smart Wi-Fi-enabled temperature controls available
Single-zone and multi-zone options
Ideal for home additions and renovations
Efficiency Maine rebates available
Professional installation by certified technicians

Serving Central & Southern Maine

Augusta, Waterville, Bangor, Lewiston, Portland, Bath, Brunswick, Windham, Auburn, and surrounding areas.

24/7 Emergency Service Available: (207) 445-4092 ext 2

Ready to Get Started?

Contact us today for a free estimate. Our team is standing by to help.

Additional Heating, Cooling & Plumbing Services

Mini-splits pair well with traditional heating systems. If you also have a furnace, Knowles Mechanical offers furnace installation and responsive furnace repair for backup heat during extreme cold. Our technicians also provide expert heat pump repair to keep your system running efficiently.

For central air systems, we deliver fast air conditioner repair so you never have to endure a hot Maine summer without cooling. Our technicians are trained across all major brands and system types.

We also provide comprehensive plumbing services and skilled fixture installation for bathrooms and kitchens. Business owners interested in renewable energy can explore our solar contracting division.

Browse all of our services, visit our homepage, or contact us to schedule a consultation. We're also hiring — view our careers page for current openings.