The Top 7 Plumbing Emergencies (and How to Handle Them Fast)

When your home’s plumbing turns against you, every minute matters.

A burst pipe, a flooded basement, or a toilet that won’t stop running—these problems don’t wait for business hours, and they certainly don’t wait for a convenient time. At Mainstream Electric, Heating, Cooling, and Plumbing, we’ve been handling plumbing emergencies across Spokane Valley and the Inland Northwest for over 20 years. We know the warning signs, the hidden risks, and the damage that even a small leak can cause if it’s left unchecked. Let’s walk through the top plumbing emergencies we see most often—and what you can do before help arrives.

1. Burst or Active Leaks

Why it happens: Freezing winters, aging pipes, and shifting ground can all contribute to sudden pipe leaks in Spokane homes—especially in basements or crawl spaces.

What to do: Shut off your home’s main water valve immediately. It’s usually in the basement or garage. The faster you act, the less water damage you’ll face.

Call Mainstream: Mainstream’s licensed plumbers can quickly locate the leak—even if it’s behind walls—and make lasting repairs. We’re also here for restoration guidance if floors, drywall, or electrical were affected.

2. No Hot Water

Why it happens: Many Spokane Valley homes have water heaters tucked into mechanical closets or tight basement corners. Age, sediment buildup, or a faulty thermostat can suddenly leave you in the cold.

What to do: Check your breaker (for electric models) or relight the pilot (for gas). If everything looks fine but the water’s still cold, it’s time to call.

Call Mainstream: Whether your unit needs a repair, flush, or full replacement, we’ll diagnose the issue fast and get your hot water running again. We even handle tankless systems.

3. Overflowing or Constantly Running Toilets

Why it happens: Backups, worn parts, or hidden drain clogs can cause toilets to overflow or endless running. In homes with older plumbing, this isn’t uncommon.

What to do: Shut off the water valve behind the toilet and don’t flush again. A plunger might help—but beware of repeat offenders.

Call Mainstream: Mainstream can repair or replace faulty components. And if the problem goes deeper (like a main line clog), we have the tools to solve it—all without bringing in another contractor.

4. Sewer or Older Drainage Backup

Why it happens: Spokane’s older neighborhoods often have clay or cast iron sewer lines. Roots, debris, or collapsed lines can cause nasty backups.

What to do: Stop using all water—sinks, showers, toilets—and call us right away. This is not a DIY moment.

Call Mainstream: We use camera inspections, hydro-jetting, and trenchless technology to clear or repair your main line fast. From diagnosis to dig, we’ve got you covered.

5. Leaking Refrigerator Water Line

Why it happens: That tiny water line behind your fridge can crack, pop, or leak—especially if it’s still hard copper or poorly installed.

What to do: Unplug the fridge and shut off the water line (usually nearby). Mop up standing water to prevent floor damage.

Call Mainstream: We replace faulty lines with durable braided options and check behind the fridge for hidden damage. Yes—Mainstream handles that, too.

6. Groundwater Seepage

Why it happens: In spring, when Spokane’s snowmelt mixes with rain, groundwater can sneak into basements—especially if your sump pump fails or drainage is poor.

What to do: Clear exterior drains and check your sump pump if you have one. If water’s entering your home, it’s time to call.

Call Mainstream: We service sump pumps, inspect perimeter drains, and coordinate repairs to keep your foundation dry. Our team doesn’t just handle pipes—we protect your whole home.

7. When Something Just Feels Off

Why it happens: Gurgling drains. Musty smells. Water in places it shouldn’t be. Sometimes you can’t pinpoint it—but something’s wrong.

What to do: Trust your gut. Small issues have a way of becoming big problems when ignored.

Call Mainstream: Our all-in-one team handles plumbing, electrical, HVAC—and even those mystery issues that don’t fit in a box. We’ll track it down and fix it right.

We’re Here When You Need Us—24/7

At Mainstream, we know plumbing problems don’t wait until Monday morning. That’s why we offer 24-hour emergency plumbing service for homeowners throughout Spokane, Spokane Valley, Post Falls, and surrounding areas. Whether it’s a gushing leak at 2 AM or a sewer backup during your only day off, we’ll be there—fast, professional, and fully prepared to handle whatever your home throws at us.

Don’t wait for the damage to spread. One call to Mainstream gets it done.