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Plumber in Hermantown, MN

Leaks, Water Heaters and Backups in Hermantown, Fixed Right.

Water heaters, leaks, sump pumps, drains and septic lines. Often the same day, priced before work starts.
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4.5★

232 Google reviews

24/7

Emergency Service

5,000+

Twin Ports Customers

10+ Yrs

Industry Experience

Plumbing for Hermantown Homes, City Sewer or Septic

Hermantown’s housing is newer than Duluth’s or Superior’s. According to the U.S. Census Bureau’s American Community Survey 2024 5-year estimates, the median Hermantown home was built in 1993 and about 41 percent were built in 2000 or later. In houses that age the calls are less about crumbling pipe and more about the equipment: water heaters from that building wave reaching the 10 to 15 year mark, sump pumps, fixtures and the supply lines behind them.

Water and sewer are not the same everywhere in town. The City of Hermantown buys its drinking water from the City of Duluth and sends its sewage to the Western Lake Superior Sanitary District, but it also says not all residents have city water and sewer. Homes outside the mains run on their own well and a septic system or holding tank, which changes what a plumber needs to check.

Our five plumbers handle water heaters, leaks, fixtures, sump pumps, frozen pipes, drain cleaning and septic and holding tank work. See our plumbing services, or everything we do in town on our Hermantown service area page.

Call (715) 817-4404
Copper supply lines and shutoff in a basement

Signs You Need a Plumber in Hermantown

Water heater 10 years or older

Rust at the base, a rumble when it heats or water that will not stay hot are the warnings. Plan the replacement before it floods the basement.

Sump pump in the spring melt

If it runs constantly or not at all, have it checked before the next thaw. A battery backup keeps it going in an outage.

A leak you cannot find

Water stains, a musty smell or a meter that moves with everything off. Found early, it is a repair, not a remodel.

A frozen line in an unheated space

Garages, crawlspaces and outside walls freeze first. Shut the main and call before it thaws.

Slow drains house-wide on septic

It could be the tank, the line to it or something past it. We sort out which.

Fixture upgrades

New faucets, toilets and shutoff valves, installed and checked for leaks.

Ready to Get Your Plumbing Handled? Let’s Talk.

Whether it’s a repair that can’t wait, a tune-up before the season shifts, or a full system replacement, one call gets you a real technician and a real answer. No call centers, no runaround, no pressure.

How It Works When You Call Us

STEP 01

Tell us what is leaking

Where the water is, how long it has been going, and whether you are on city water or a well. We bring the right parts.

STEP 02

From our Superior shop

Hermantown is about 12 road miles from our shop at 1808 Tower Ave in Superior. We tell you on the call when a plumber can be there.

STEP 03

Full diagnostic, written pricing, repair or install

Every water heater install includes the expansion tank and venting work it needs. You see and sign the number before we open a valve.

Plumbing Experts Who Know Hermantown

Botten Plumbing joined us in 2021, and five plumbers now work out of our Superior shop. We also cover Proctor and Duluth.

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Why Hermantown Calls Advantage Air for a Plumber


Often Same-Day

Service is often the same day in Hermantown. We stock common shutoffs, supply lines, and fixture parts on our trucks.


All Brands Serviced

We install and repair every major plumbing brand. Moen, Delta, Kohler, Watts, Navien, Rinnai, and more. Whatever’s in your Hermantown home, we work on it.


Honest Recommendations

If a fixture or a water heater has years left, we fix it and say so. If it is done, we show you why before we price the replacement.


24/7 Emergency Service

Burst pipes and active leaks in Hermantown don’t wait for business hours. Our emergency team is always on call.

Copper supply lines and shutoff in a basement

One Company, Every Trade

Heating, cooling and plumbing from one company, with five HVAC techs and five plumbers on staff.

Plumbing Questions We Hear from Hermantown Homeowners

It depends on the job. You get the price before work starts, and it does not change after you approve it. Water heater replacements and new installs start with a free written estimate.

Call (715) 817-4404 and we will tell you when a plumber can be there. Tankless and heat pump water heaters need 1 to 3 days because of the electrical and venting work required.

For a water heater replacement, yes: the City of Hermantown requires a building permit for it. SAFEbuilt has run the city’s building department since August 19, 2026, with permits issued through the city’s online portal. We pull the permit.

Yes. The City of Hermantown notes that not all residents have city water and sewer. Inside the house, the plumbing works the same either way, and we also handle septic and holding tank work. Tell us your setup when you call.

Yes. We recommend a battery backup option on every replacement. A power outage during a wet spring is when a sump pump gets tested.

NOAA’s 1991-2020 normals for Duluth International Airport put the average January low at about 2°F, with about 38 nights a year below zero. Pipes on outside walls, in crawlspaces and in unheated garages are the ones that freeze, so insulate them and know where your main shutoff is.

Google reviews

What customers say about our plumbing work.

4.5 out of 5 from 232 Google reviews

Google
I had a fantastic experience with Advantage Air Plumbing company! From the moment I called, their customer service was friendly, professional, and very helpful. The plumbers arrived on time, the quality of the work was excellent, and they made sure everything was working perfectly before they left. I really appreciated their professionalism and respect for my home.
Denise Waltenburg
Google
Very quick,I had a clogged toilet th e y came early and got the job done I will be using them for now on
NATE
Google
Dan has been at our house for repairs twice now and both times we couldn't be happier with the work done. He is kind and informative. This time it was a leaky pipe issue and even after finding the one he thought was the issue he still made sure to check every other fixture just to be sure. Would 100% call them again for any other issues we have in our house
Blake Hatinen

Ready to Get Your Plumbing Handled?

Whether it’s a quick repair, a seasonal tune-up, or a full system replacement, Advantage Air is one call away. Upfront pricing and respect for your home.

CALL (715) 817-4404
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