From standard drainfields on flat Coeur d’Alene lots to engineered systems on Lake Coeur d’Alene, we design, permit, and install septic systems across the Coeur d’Alene area. | Licensed for Simple and Complex Systems | BBB Accredited | Family & Veteran Owned |

Who We Serve

Property owners building on raw land, planning an ADU or bedroom addition, or installing septic for the first time on a Coeur d’Alene property.

Problems We Solve

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

Coeur d’Alene Is Adding Bedrooms, ADUs, and New Builds Faster Than Most Owners Realize They Need a Permit

Growth across Coeur d’Alene has driven a wave of ADU additions, basement conversions, and full custom home builds, and most of those projects require a new or upgraded septic system before a single building permit gets approved. Quality has to start from the ground up. Whether you’re installing septic on a raw lot, upsizing for an addition, or building new on a hillside above Lake Coeur d’Alene, we handle the design, the permits, and the installation.

The Septic Installation Work We Take On, Across Coeur d’Alene

From straightforward new installs to the engineered systems Lake Coeur d’Alene properties require, here’s the installation work we handle most.

New Installs

First-time septic on raw land in the Coeur d’Alene area, handled from soil testing through finish grade.

  • Soil testing and system design for Coeur d’Alene lots
  • Panhandle Health District permit coordination
  • Tank placement and drainfield installation

Full New Construction Installs

Installing septic on a new custom home build in Coeur d’Alene, from the foundation dig through final grade.

  • New install designed around your home’s bedroom count and site conditions
  • Current Idaho specifications and Panhandle Health District code
  • Most standard new-construction installs completed in a week or less

Capacity Upgrades for ADUs and Additions

Adding a bedroom, building a guest cottage, or converting to Airbnb in Coeur d’Alene usually means your septic needs to be upsized first.

  • Assessment of your existing system against planned bedroom count and square footage
  • Capacity math against Coeur d’Alene and Idaho code requirements
  • Installation of the upgrade before your building permit gets pulled

Complex and Lakefront Systems

Engineered systems for Lake Coeur d’Alene properties and lots over the Spokane Valley-Rathdrum Prairie Aquifer.

  • Drainfield design for steep hillside and shoreline lots on Lake Coeur d’Alene
  • Tilt rotator for precision access on tight lakefront sites
  • Nutrient-pathogen evaluation coordination for aquifer-sensitive installations

You Probably Recognize One of These

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

You’re Building a Custom Home and Need Septic Installed

The plans are drawn and the permits are in motion. You need a licensed installer who can put the septic system in on schedule so your foundation and framing crews aren’t waiting on an open site.

You Bought Raw Land and Have Never Dealt With Septic

You’re building from scratch on a Coeur d’Alene lot; maybe a hillside parcel, maybe something near the lake, and you’ve always been on city sewer. You need someone who can walk the property, explain what the lot actually requires, and handle the full installation as a single package.

You’re Planning an ADU or Adding a Bedroom

You’re finishing a basement, building a detached guest unit, or converting space to short-term rental, and someone just told you the existing septic won’t cover it. Call us before you finalize the plans. We’ll save you a denied permit and a scheduling delay.

You’re Buying a Property and There’s No Septic Yet

You’re closing on a Coeur d’Alene lot and the previous use didn’t include a permitted septic system. You need a clean starting point designed and installed to current Idaho code before the build can begin.

You’re Building New on a Lakefront Lot

Your property sits on Lake Coeur d’Alene, and the standard septic playbook doesn’t apply. Steep slopes, limited lot size, shoreline setbacks, and aquifer protection requirements all shape what’s allowed. You need someone licensed for the engineered designs and permit work these properties require.

Your Builder Needs a Reliable Septic Sub

You’re a custom home builder working in Coeur d’Alene and you need a septic installer who shows up on schedule, coordinates with the build timeline, and doesn’t leave your concrete crew waiting. We’ve worked behind enough builders to know what makes their job easier.

Working Across Coeur d’Alene

We’re based in Athol and handle septic system installation projects across Coeur d’Alene, including hillside lots above the city, lakefront properties on Lake Coeur d’Alene, and new construction throughout the area. For properties outside our usual coverage area, give us a call and we’ll talk through it.

Do I need a septic system if I’m building in Coeur d’Alene?

It depends on whether your lot is served by city sewer. Many Coeur d’Alene properties, especially hillside lots, parcels near Lake Coeur d’Alene, and rural land on the edges of the city, require private septic. Panhandle Health District determines what’s required during the permitting process. If you’re unsure, call us before you finalize the purchase or the plans.

How long does a new septic installation take in Coeur d’Alene?

Most standard new installations take a week or less from permit approval to backfilled and operational. Engineered systems and Lake Coeur d’Alene lakefront installs can take longer when soil conditions, aquifer setbacks, or engineered drainfield designs are involved. You’ll get a clear timeline in the written quote.

Who handles the permits for a Coeur d’Alene septic installation?

We do. Every new septic installation in the Coeur d’Alene area requires a permit through Panhandle Health District. We manage the full process; site evaluation, system design submission, and inspection coordination. You don’t file anything yourself.

Why does building on Lake Coeur d’Alene require a different septic process?

Properties on or near Lake Coeur d’Alene and lots over the Spokane Valley-Rathdrum Prairie Aquifer face additional regulatory requirements, including engineered drainfield designs, tighter setbacks, and nutrient-pathogen evaluations. We hold the complex installer license required for this work and have handled the permit process for lakefront installations throughout the Coeur d’Alene area.

Does adding a bedroom or ADU in Coeur d’Alene require a new septic system?

Almost always. Idaho calculates septic capacity by bedroom count, and adding a bedroom, finishing a basement room, or building an ADU almost always triggers an upgrade or new system requirement. Call us before you finalize your plans. We’ll save you the trouble of a denied building permit.

Do you also pump septic tanks after installation?

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

Building on a Coeur d’Alene Lot? Let’s Talk About the Septic First.

New build on raw land, ADU addition, lakefront property on Lake Coeur d’Alene, 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.