Deal of the Day
Free Pure Air Filtration System with the Purchase of a Qualifying Lennox System, Installation Included
$200 Off the Installation of a New 50-Gallon Water Heater or $350 Off the Installation of a New Tankless Water Heater.
Free Mobile Friendly Light-Switch with Panel Change, WIFI Required
Certified Plumbing, HVAC & Electrical Professionals Offering Comfort & Peace of Mind to the People of Northern Idaho

Lennox HVAC Products in Spokane & North Idaho

Installation & Repair of HVAC Systems from a Trusted Brand

When you’re looking to update your home with a newer, energy-efficient HVAC system or heater, you want the best in energy-efficient equipment. Lennox delivers that and, as a qualified distributor, Mainstream Electric, Heating, Cooling, & Plumbing is stepping up to help guide you through the process of updating your home’s equipment. From identifying the problem to selecting a new system, sizing the unit for your home, and installing it, our expert team does it all.

What’s more, you can find great deals and rebates on all Lennox products to help offset the cost of installation! It’s never been easier to upgrade your home’s heating and cooling system.


Lennox® furnaces are some of the most efficient and quietest heating systems you can buy*. They’re engineered for perfect warmth and savings.

Air Conditioners

Exacting precision makes Lennox® air conditioners among the quietest and most energy-efficient units you can buy.

Heat Pumps

Enjoy innovation in every season with precise, quietly efficient Lennox® heat pumps that keep your life simply perfect.

Solar Ready

Solar-ready air conditioners and heat pumps can be easily combined with SunSource® modules to deliver powerful savings.

Packaged Units

Self-contained units engineered for high performance and easy installation

Indoor Air Quality

Indoor air quality systems including home air cleaners, air purifiers, home air filters, and more from Lennox, the leader in home air quality.

Air Handlers

Lennox® air handlers are among the most efficient and quietest you can buy.


For homes in northern regions that rely on boilers for heat, there’s no better choice than Lochinvar Knight.

Garage Heaters

With a low-profile design and a range of capacities, Lennox® garage heaters bring reliable and efficient warmth to almost any garage or workspace.

Mini-Split Systems

When only certain rooms need heating and cooling, Lennox® Ductless Mini-Split heat pumps and air conditioners provide a smart, flexible solution.


Lennox® comfort is made even better with the precise, energy-saving control of Lennox thermostats, leading with the iComfort® S30.


By redirecting air to specific areas, a Lennox® zoning system keeps your family perfectly comfortable and keeps your home efficient.

To learn more about the Lennox HVAC products we have available for Spokane and North Idaho residents, please don’t hesitate to call Mainstream Electric, Heating, Cooling, & Plumbing at (866) 978-9297!

Why Hire the Mainstream

Electric, Heating, Cooling, & Plumbing Team?
  • Family Owned
    & Operated

  • Upfront
    Pricing Options

  • Friendly & Expert

  • Full Satisfaction

  • Drug-Free. Background

  • Licensed,
    Bonded & Insured

  • Ongoing Training &