Spokane
6 cities
Spokane & North Idaho Coverage
HVAC, Plumbing & Electrical in Every City We Serve
HVAC, plumbing, and electrical service across Spokane County and Kootenai County — same crew, same flat-rate pricing, every city.
Spokane & North Idaho service map
We Bring the Whole Truck to 22 Cities
Heating, cooling, plumbing, drains, electrical, and indoor-air-quality service across Spokane County and Kootenai County. Pick your city below or call us — same dispatch, same crew, same flat-rate pricing across the entire region.
- 22 Cities served
- 2 States: WA & ID
- 7am–7pm Same-day windows
- 24/7 Emergency HVAC, Plumbing & Electrical
City we service Mainstream HQ — Spokane, WA
Cities We Service
Tap a city for the full page, or call us if you don't see your town — we work just past every border listed here.
North Spokane
5 cities
West Plains
3 cities
East Valley
3 cities
North Idaho
5 cities
Don't see your town? We routinely run jobs in surrounding communities — give us a call and we'll let you know on the spot. Call (509) 237-6483.
Every service, every city
HVAC, Plumbing & Electrical under one roof — same crew, same dispatcher, same flat-rate pricing across the entire service map.
Air Conditioner Services
AC repair, replacement, and tune-ups for Spokane Valley homeowners — keeping your home cool through every summer heat wave.
More about Air Conditioner ServicesHeating Services
Furnace, heat pump, and boiler repair, replacement, and maintenance — keeping Spokane Valley families warm all winter long.
More about Heating ServicesPlumbing
From leaks and water heaters to 24/7 emergency plumbers and whole-home water filtration, Mainstream delivers trusted plumbing throughout Spokane Valley.
More about PlumbingDrains & Sewers
Drain cleaning, sewer repair, and camera inspections to keep Spokane homes flowing smoothly.
More about Drains & SewersElectrical
From panel upgrades to emergency repairs, our licensed electricians keep your home powered and protected.
More about ElectricalIndoor Air Quality
Indoor air quality solutions for Spokane families, including duct cleaning, filtration, and humidity control.
More about Indoor Air QualityWhy Choose Mainstream
Same-Day Service
Most service calls handled same-day across Spokane and Coeur d'Alene.
Upfront Pricing
Flat-rate pricing approved before work begins — no surprises on the invoice.
Licensed & Insured
Fully licensed in Washington and Idaho, bonded, and insured for your protection.
Satisfaction Guaranteed
If it isn't right, we make it right. Period.
What Our Customers Say
Don't just take our word for it — hear from our satisfied customers
★★★★★
They did an excellent job in replacing my water heater and pressure tank with virtually no notice.
