509-237-6483

Available 24/7

Schedule Now
Schedule Now

Is your AC struggling? Get 6 months no payments & no interest on new AC systems!

Electric Generator Experts

Need an Electrician? We’re Here for You 24/7.

Give us a call!

509-237-6483
Mainstream Truck Outside of a House

WHOLE-HOME GENERATOR SERVICES

Whole-Home Generator Experts in Spokane

  • Schedule 24/7 - we're here when you need it most!
  • Certified Technicians - licensed & insured
  • Quick Repairs - done right!
  • Quality Service - you'll love!

We offer a full line of installation, maintenance and repair services your home generator system may require, no matter the problem or time of year. You can count on the trusted professionals at Mainstream Electric, Heating, Cooling, and Plumbing for exceptional service and quality craftsmanship every time.

A photo of a residential home generator

SPECIAL OFFERS

Mainstream Savings & Offers

$99 Electrical Safety Inspection

Expires:  09/30/2025

View details

Up To $2,500 Off New Generator with Free Quote

Expires:  09/30/2025

View details

$250 Off Modern Electrical Panel Upgrades

Expires:  09/30/2025

View details

FREE Scheduled Electrical Inspection with Any Paid Service

Get a FREE scheduled electrical inspection with any paid service from Mainstream! Ensure your home’s electrical system is in top shape. Schedule today!

Expires:  06/30/2025

View details

$99 Electrical Safety Inspection

Safety first! Get a $99 electrical safety inspection from Mainstream and ensure your home’s electrical system is secure and up to code. Schedule now!

Expires:  06/30/2025

View details

Up to $2,500 Off a New Generator with Free Quote

Ensure your home stays powered! Get up to $2,500 off a new generator installation with a free quote. Trust Mainstream for reliable backup power solutions.

Expires:  06/30/2025

View details

Jamie L.

My husband and I had to have a new circuit breaker panel installed. The team that came out was thorough and answered all of our questions. The process was smooth and the team was amazing. They even brought out a generator so I could hook up my laptop for work. The final inspection went great. Thank you to Mainstream for the great work. I would highly recommend Mainstream.

Alex W.

The office kept us up to date with electricians estimated arrival time. Appointment was in time frame promised. Sam did a great job of explaining options and work was done quickly. Will recommend Mainstream to anyone needing work done!

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.

Becky B.

My canister lights were flickering, so I called Mainstream Electric. Kendel’s  customer service was outstanding. He went above and beyond. He replaced my canister lighting and made some adjustments to my existing canisters to help me stay within my budget and get optimal usage of my lighting. Call Mainstream for all your electrical repairs and maintenance. They do it right!!!

Michael F.

I’ve dealt with electricians, repair techs. and countless companies but none compare to Mike Z and the team at Mainstream Electric. The repair was completed in a timely and professional manner and Mike explained everything I asked. He went so far as to write up safety issues that need attention. Mike knows his business. I can’t express how pleased I am. Thanks Guys!

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!

5-Star Service

Real Reviews

Experience the difference with Mainstream, where real customers in Spokane and Northern Idaho share their satisfaction. With over two decades of expertise in providing top-notch electric, heating, cooling, and plumbing services, our customer testimonials tell the story of our dedication and professionalism. From seamless installations to meticulous maintenance, discover why homeowners in your area trust us with their comfort needs. Our commitment to excellence and customer satisfaction is evident in every review. Explore the impact of our professional touch on homes throughout Spokane and Northern Idaho.

Schedule Your Service Online!

Schedule Now

Mainstream Isn't Just Whole-Home Generators

An up close photo of a person cutting wires in an outlet box in a home

Emergency Electricians

Rapid response for all your electrical emergencies—24/7 support to keep your home comfortable.

Learn More About Electrical
Mainstream Electrician Working on Wall Switch

Electrical Repairs

Fast and reliable electrical repairs to keep your home running smoothly.

Learn More About Electrical
Mainstream HVAC Technician Bringing In an HVAC Unit

Heating & Cooling

Professional installation, maintenance, and repair for A/Cs, furnaces, heat pumps, and other systems – ensuring year-round comfort.

Learn More About Heating & Cooling
Technician About to Work on Plumbing

Plumbing

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

Learn More About Plumbing
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.

Learn More About Drains & Sewers

Mainstream is Spokane’s #1 plumbing, electrical, heating, and air conditioning home repair specialists.

Call today to schedule your service!

Services
Company
More Info
Schedule Now
The BBB Accredited Business logo
License Numbers
  • WA General Contractor
    WA CC MAINSEL782UQ
  • WA Master Plumbing
    WA PC MAINSEL783C8
  • WA Electrical
    WA EC MAINSEL782DQ
  • ID Division of Occupational & Professional
    RCE-50061
  • ID Septic Installer
    15-107184
  • ID Plumbing
    0661089
  • ID Electrical
    ELE-J-18552
  • ID HVAC
    021329
©2025 Mainstream Electric, Heating, Cooling, & Plumbing

Privacy Policy | Terms and Conditions

Facebook Youtube Instagram X-twitter Linkedin