Septic Services

Septic Installation and Replacement for North Idaho’s Lots, Lakefronts, and Lake Cabins

From standard drainfields on flat valley lots to engineered systems on lakefront property, we design and install septic systems across Kootenai and Bonner Counties.

Licensed, Bonded & Insured

BBB Accredited
Family & Veteran Owned

Who We Serve

Property owners dealing with a failed system, planning an ADU or addition, or building from scratch on raw or lakefront land.

Problems we solve

We design and install septic systems that meet Idaho code, hold for 30+ years, and pass inspection cleanly when the property changes hands.

Septic Systems Installed in the 1990s Are Reaching End-of-Life Across North Idaho

The 1995-2005 building boom in Kootenai and Bonner Counties put thousands of systems in the ground that are now hitting their natural failure window. Quality has to start from the ground up. Whether your system already gave up or you’re getting ahead of one that will, we replace it cleanly and to current Panhandle Health District code.

The Septic Work We Take On, Across North Idaho

From standard installs to the engineered systems lakefront properties require, here’s the work we handle most.

New Installs

First-time septic on raw land, handled from soil testing through finish grade.
Soil testing and system design
Permit guidance, with full submission available on request
Tank placement and drainfield installation

Full Replacements

When a system reaches end-of-life or already failed, we replace it cleanly to current code.
Tear-out of the existing tank and drainfield
New install to current Idaho specifications
Most standard jobs done in a week or less

Capacity Upgrades for ADUs and Additions

Adding a bedroom, building an ADU, or converting for rental usually means upsizing your septic.
Assessment of your existing system
Capacity math against your planned changes
Installation of the upgrade Idaho code requires

Complex and Lakefront Systems

Engineered systems for lakefront properties and lots over the Spokane Valley-Rathdrum Aquifer.
Drainfield design for steep and complex sites
Tilt rotator for precision on tight lots
Nutrient-pathogen evaluation coordination
Service Map

We Work Across North Idaho

We’re based in Athol and serve Kootenai and Bonner Counties, with regular projects in Coeur d’Alene, Hayden, Post Falls, Sandpoint, Bayview, Spirit Lake, and the smaller communities between. For properties outside our usual coverage area, give us a call and we’ll talk through it.

You Probably Recognize One of These

Most septic calls fall into one of these situations. If yours does, we’ve handled it before.

Your System Just Failed

The yard is wet, the house smells, or sewage is backing up into the basement. You don’t have time to shop around, and you need somebody licensed who can show up fast and tell you straight what you’re looking at.

You Weren’t Planning on a New Septic

Septic replacement rarely fits a budget, and it lands hardest on retirees and working families. We’ll walk the situation with you honestly, lay out what’s actually required, and quote it without padding.

You’re Planning an ADU or Adding a Bedroom

You’re finishing a basement, building a guest cottage, or planning an Airbnb conversion, and somebody just told you the septic might not support it. Call us before you finalize plans. We’ll save you the trouble of a denied permit.

You Bought a Property and the Septic Is a Question Mark

Inspection flagged the system. Or you’re moving from a city where septic was somebody else’s problem and you’ve never owned one. Either way, you need a clear answer on what you actually have.

You’re Building New on Raw Land

First time installing septic, often on a lakefront, hillside, or rural lot. You need someone who can handle soil testing, design, and installation as a single package.

You’ve Got a Lakefront Lot and a Complex Permit Process

Your property is near the lake or over the aquifer, and the standard septic playbook doesn’t apply. You need someone licensed for the engineered designs and permit work these properties require.

What Others Say About Us

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Toby Wagner profile picture
Toby Wagner
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We needed a leach field in the middle of the winter 2B Construction came out. They handled all the permits and worked through the snow and cold to get us taken care of so we could have a working septic system. Excellent job and timely repair. Great communication and cleanup afterwards. Highly recommend 2B Construction! Thank you Ron and Tyler!
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Jon Cooke profile picture
Jon Cooke
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I was in need of a plugged septic line that was on city right of way. The inspector gave me Ron's phone number. He met with me the next day to see what he was able to do. My situation unfortunately needed to be done asap and I didn't expect him to drop the project he was on. Fast forward to a month later, Ron worked on a private road drainage issue that affected me and others. The problem was quickly found and fixed plus he was able to bring our road up to county standards if not better. I am very impressed and satisfied with his company and would recommend them.
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Ludwig Tomasini profile picture
Ludwig Tomasini
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I am validating all of the 5 star reviews about 2 B Construction. I had a failing septic field. Any question I had prior to or during the replacement of the septic field was answered quickly. Very, very professional, courteous, competent and knowledgeable employees. These guys were working in very rainy weather. Some of the dirt turned to mud yet my yard was left very flat with no tire trenches. Very impressive! I would not hesitate for a second to use them again. Thank you Ron and crew.
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Travis Hathaway profile picture
Travis Hathaway
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We had an issue with our main septic line. That was causing the basement to backfill. 2B was incredibly prompt. Fit us in to relieve our family of the stress with incredible work and a fair price. Would recommend for all projects !
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Jennifer Davis profile picture
Jennifer Davis
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There is no way my words can do justice for the sheer amount of gratitude I have for the work these guys did. The job at my house wasn’t easy, I needed to install two septics along with a whole new drain field (and my land is basically sitting on sheer rock) and the path to make it all work was intertwined with water lines and power lines etc. They made it look like cutting butter and they ensured my property was put back better than they found it. I was referred to them initially by the company that cleans my existing septic tanks and I am so thankful for that. Ron, Tyler, Dave and every person that worked on my property treated it as their own, fully explaining everything along the way. Definitely the best guys to have on your job in town, truly great people and I am truly blessed to have found them.
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Chris Hickel profile picture
Chris Hickel
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Great customer service
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Daniel Larson, DC profile picture
Daniel Larson, DC
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Our drain field failed. We have very limited space on our lot by the lake. 2B worked with the county to make a plan that made replacement possible. They also redid our driveway. Everything came out better than expected. Thanks guys for an excellent job!
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P Nelson profile picture
P Nelson
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2B Construction installed a semi-complex septic system after the current system failed. The installation required a lot of excavation, rock, verti-block, new poly-lines, frost-free faucets, and the installation of several yards of screen drains. They were professional, friendly, prompt, and very skilled. I could not have asked for a better outcome. I can, and have, recommended them with the highest confidence.
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K Minor profile picture
K Minor
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2B did a fantastic professional job on our septic system. With constant communication and efficient workflow, 2b was a breeze to work with.
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Madison Hanners profile picture
Madison Hanners
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I bought a new home with a cracked septic and roots growing into. They reviewed the video I had of my septic and went to town. They were able to squeeze me into their schedule which I was thankful for. Their work turned out wonderful.

Septic Questions We Hear Often

How do I know if my septic is failing?

Common signs include slow drains across multiple fixtures, sewage smells in the yard or near the tank, soggy or unusually green spots over the drainfield, sewage backing up into the lowest drains in the house, and gurgling sounds in the plumbing. Systems older than 20 to 30 years are also at higher risk of drainfield failure regardless of visible symptoms. If you’re seeing any of those, call us for an assessment.

How long does a replacement take?

Most standard replacements take a week or less from permit approval to backfilled and operational. Complex systems and lakefront installs can take longer when soil conditions or engineered drainfield designs are involved. You’ll get a clear timeline in the written quote.

Do I need a permit, and who handles it?

Yes. Every septic install or replacement in Kootenai and Bonner Counties requires a Panhandle Health District permit. The application itself is straightforward enough that most clients submit it directly to PHD to save the extra fee, and we walk you through exactly what to include. On our side, we handle the technical work behind the application: site evaluation, system design, and inspection coordination. If you’d rather not deal with the paperwork at all, we can submit on your behalf as a paid add-on.

Why concrete tanks instead of plastic?

Concrete tanks last 30+ years with proper maintenance and hold up to ground shift, root intrusion, and the moisture conditions found on lakefront lots. We spec concrete on every install because it’s the system that’s still working when the property changes hands.

Can I add a bedroom or ADU without upgrading my septic?

Almost never. Idaho calculates septic capacity by bedroom count, and adding a bedroom, finishing a basement room, or building an ADU almost always triggers an upgrade requirement. Call us before you finalize plans. We’ll save you the trouble of a denied permit.

Do you also pump septic tanks?

We don’t pump, but we work closely with Little Stinker, a long-trusted septic pumping service in North Idaho. We refer all our clients to them for ongoing pumping and routine maintenance, and they refer their replacement and install work to us. You’re in good hands either way.

Septic Problem or Septic Project? Let’s Talk About It.

Failed system, planned addition, lakefront build, or something in between. Send us the project details and we’ll get back to you within one business day, schedule a site visit if it makes sense, and give you a written quote you can compare against any other bid.