Same-Day Service
Most service calls handled same-day across Spokane and Coeur d'Alene.
Sump Pumps
A working sump pump is the cheapest insurance against a basement flood.
Most basement floods happen because of three things: a sump pump that failed quietly, a sump pump that didn’t have battery backup during a power outage, or a sump pump that was undersized for the water volume. We fix all three.
We install primary submersible pumps from Zoeller, Liberty, and Wayne; sealed-cover pedestal pumps where the application requires; and battery-backup secondary systems that take over automatically when power fails or the primary pump can’t keep up. Annual service available for Care Club members.
- Licensed plumbers Washington & Idaho licensed, bonded, and insured — never sub-contracted.
- Stocked trucks Pipe, fittings, fixtures, and diagnostics on board — one-trip repairs.
- Flat-rate quotes Approved before any work — never charged by the hour.
- Warrantied work 1-year labor warranty plus full manufacturer parts coverage.
When to Call
Sump pump warning signs
Sump pumps fail quietly. You usually don't know yours is dead until the basement floods. These are the warning signs you can catch first:
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Loud or unusual noises
Grinding, rattling, or excessive vibration — motor or impeller wearing out.
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Cycling on and off rapidly
Failed float switch, stuck check valve, or undersized pump for the load.
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Sump pump over 7–10 years old
Average lifespan. Replacement before failure is much cheaper than after.
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No battery backup
Spring storms knock out power exactly when you need the pump running.
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Pump won't turn on
Float switch failure, motor burn-out, or breaker trip — diagnose same-visit.
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Pump runs constantly
Stuck float, failing check valve, or high groundwater — all worth a same-day check.
What We Do
Full sump pump service
Repair, replacement, battery backup, and annual maintenance — sized to your basement and groundwater.
- Primary pump install/replace 1/3 HP, 1/2 HP, and 3/4 HP submersibles sized to your sump pit and water volume.
- Battery backup systems AC/DC dual systems that switch automatically on power loss or primary-pump failure.
- Sump pump repair Float switches, check valves, motor capacitors, and discharge-line repairs.
- Discharge line repair Frozen, clogged, or improperly graded discharge lines repaired or rerouted.
- High-water alarms Wi-Fi alarms that alert you when the pit rises — peace of mind when you're away.
- Pit cleaning & service Annual sump pit cleaning, pump testing, and check-valve service.
- Pit covers & venting Sealed sump pit covers and radon-mitigation venting where applicable.
- New sump pit install Adding a sump system to a previously unprotected basement.
How It Works
Our sump pump service process
Test first. We make sure the pump actually runs before quoting anything.
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Call & schedule
Same-day appointments for failed pumps. 24/7 emergency dispatch for active flooding.
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Inspect & test
Pump cycle test, check valve, discharge line, float switch, and battery backup status.
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Approve the price
Repair vs replacement options with flat-rate quotes for each.
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Service & guarantee
Most jobs done same-visit. Backed by a written labor warranty.
Current Specials
Save on the work your home needs most.
Why Choose Mainstream
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.
Sump pump out or noisy? Before the next storm.
Same-day service across Spokane & Coeur d'Alene — flat-rate pricing, no surprises.
What Our Customers Say
Don't just take our word for it — hear from our satisfied customers
★★★★★
Ricky Saldana the technician that came out was fantastic. He was so knowledgeable about my plumbing issues and his recommendations were spot on. He was on time and very pleasant to work with. I would highly recommend him for any plumbing work that needs to be done.
Thanks Ricky for all of your input.
★★★★★
Jake was on time and very good about looking at my furnace. I appreciate all his help. I reccomend him and mainstream electric very highly. thank you Sharon Scott
Maintenance Membership
Join the Care Club
Total home service care, on a schedule.
Members get priority scheduling, seasonal HVAC tune-ups, an annual plumbing & electrical safety inspection, and exclusive discounts — for less than the cost of a single emergency call.
- Priority scheduling
- Seasonal HVAC tune-ups
- Annual safety inspection
- Exclusive member discounts
- Free dispatch on repairs
- No long-term contracts
Sump Pumps — Frequently Asked Questions
How long does a sump pump last?
Average lifespan is 7–10 years for primary pumps. Quality matters: a high-end Zoeller or Liberty pump can last 15 years; a $79 box-store pump often fails inside of 3. We size and select based on your actual water volume, not the cheapest option.
Do I really need battery backup?
If your basement is finished or stores anything valuable, yes. Spring thaw season + a windstorm power outage is exactly when sump pumps are needed most — and exactly when they can’t run without backup. The math: a battery backup costs less than a single insurance deductible after a basement flood.
How often should I test my sump pump?
At least twice a year — typically in fall before winter and in spring before snow melt. Pour a 5-gallon bucket of water into the pit and watch the pump run. Listen for noise, time the cycle, and confirm the discharge flows freely outside. We can do this as part of annual Care Club maintenance.
Why does my discharge line freeze?
Discharge lines run outside through cold winter air — and if water sits in a low spot, it freezes solid and blocks the pump. We re-route, re-grade, or add freeze-resistant fittings to fix it. A frozen discharge line is one of the most common causes of basement flooding in late winter.
Is the work warrantied?
Every install includes a 1-year Mainstream labor warranty plus the manufacturer warranty (typically 3–5 years on pumps). Care Club members get an extended 2-year labor warranty.
*Offers cannot be combined with other promotions or applied to dispatch fees. No cash value. Must present offer at time of service. Call for details.
