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4.7

509-237-6483

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Expert AC Installation

Blowout Sale - Up to $2500 Off Select HVAC Systems!

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509-237-6483
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Top HVAC Services

Depend on Us for Your Heating and Cooling Needs

  • Schedule 24/7 - we're here when you need it most!
  • Certified Technicians - licensed & insured!
  • Quick Repairs - done right!
  • Quality Service - you'll love!
When your AC or furnace breaks down, Mainstream responds fast with 24/7 emergency repairs across Spokane and Spokane Valley. Our expert HVAC technicians diagnose and fix any issue quickly, big or small. Don’t sweat the breakdowns—call now for reliable service that gets your comfort back on track!
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SPECIAL OFFERS

Mainstream Savings & Offers

A/C Tune-up $89

Expires:  06/30/2026

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$50 Off Any Service

Expires:  12/31/2026

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5-Star Service

Real Reviews

Harrison W.

I recently had Mainstream inspect my furnace and A/C and their service was nothing short of exceptional. Zach was not only punctual but also incredibly thorough in their inspection process. He took his time to ensure everything was checked and double-checked, leaving no stone unturned. 

Netha M.

Ryan was personable, professional, and extremely knowledgeable of our intricate A/C system. We make it a point to use Mainstream for all of our heating, cooling, and electrical needs. Top notch company that truly stands behind its work.

Shannon B.

They are courteous, responsive and very knowledgeable. The Technician repaired our furnace quickly! We are so grateful and will be using their service in the future!

Brandon E.

Joe was phenomenal. He not only did a thorough inspection of our furnace, he took the time to explain what he was seeing so that I could feel more confident in the overall status of my HVAC system. I will absolutely be sticking with Mainstream .

Laurie R.

Parts for the furnace were way back ordered but Kenny was able to do something to keep our furnace running during all this time. I would recommend Mainstream above and beyond ANY other heating and air conditioning service!

Sheree G.

Mainstream is prompt, professional and courteous. I had my entire HVAC system installed by Mainstream and it’s outstanding.

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Mainstream Isn't Just AC Installation

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Emergency HVAC

Instant peace of mind with our emergency HVAC services—because comfort can’t wait.

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AC Maintenance

Extend the life of your system and improve efficiency with our comprehensive maintenance services.

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Plumbing

Like most people, you might not think much about your plumbing – until something happens.

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Mainstream Technicians Working on Pipe in Home's Basement

Drains & Sewers

Your drains are nearly invisible, but far from invincible. We’re here to help keep things flowing.

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Electrical

Our electricians will help get the lights turned on in thousands of Spokane area homes.

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Expert AC Installation

Frequently Asked Questions

If your air conditioner is running but your home isn’t cooling, the issue is usually restricted airflow or a system that isn’t operating at full capacity. In Spokane Valley and Northern Idaho, this is often caused by a clogged air filter, dirty coils, or a unit that hasn’t been serviced recently. Start by checking your filter, then have the system inspected if the problem continues.
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