Septic System Installation in North Idaho And Eastern Washington

A&J Hardison Excavation installs septic systems for homes and properties across Coeur d'Alene, ID.

Idaho Contractor License #RCE-28073 · Washington Contractor License #AJHARHE742NG

Call (208) 446-4655
  • System sized and placed to match your Coeur d'Alene property's soil type and site slope
  • Proper drainfield installation reduces risk of effluent surfacing or yard saturation
  • Code-compliant installation supports Panhandle Health District approval
  • Correct setbacks from wells and surface water protect your property and neighbors
  • Professional excavation and backfill preserves your yard grade after installation
  • A properly installed system protects long-term property value and resale readiness
Excavation crew installing a septic tank and drainfield on a residential lot in Coeur d'Alene, Idaho. Heavy equipment is positioned beside an open trench with exposed soil and a concrete septic tank being lowered into place.

Expert Septic System Installation in North Idaho And Eastern Washington

A&J Hardison Excavation handles septic system installation for residential properties in Coeur d'Alene and the surrounding Kootenai County area. We work on new construction builds, full system replacements, and properties where public sewer access is not available. Our process covers site evaluation, excavation, tank placement, drainfield installation, and backfill. North Idaho properties present real site challenges. Varied soil types, seasonal groundwater shifts, and proximity to surface water all affect how a system must be designed and placed. Panhandle Health District oversees septic permitting for Kootenai County, and every installation must meet their site-specific conditions before work begins. We coordinate that process so your system is sized correctly and installed to code. If you are building on a new lot or replacing a failing system, call A&J Hardison Excavation to get a clear plan for your Coeur d'Alene property.

What's included

  • System sized and placed to match your Coeur d'Alene property's soil type and site slope
  • Proper drainfield installation reduces risk of effluent surfacing or yard saturation
  • Code-compliant installation supports Panhandle Health District approval
  • Correct setbacks from wells and surface water protect your property and neighbors
  • Professional excavation and backfill preserves your yard grade after installation
  • A properly installed system protects long-term property value and resale readiness
Family-owned and operated
20+ years of experience
Licensed general contractor
Full-service site development
Custom design and permitting

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Septic System Installation FAQ

Common questions about septic system installation in North Idaho and Eastern Washington.

Yes, a site evaluation is required before a septic permit is issued in Coeur d'Alene. Panhandle Health District reviews soil conditions, groundwater depth, and proximity to water sources before approving any installation.

Panhandle Health District issues septic permits for Kootenai County, which includes Coeur d'Alene. Each permit lists site-specific conditions your system must meet before installation can proceed.

Yes, we install septic systems on new construction lots in Coeur d'Alene. We handle excavation, tank placement, and drainfield installation to match your lot's specific soil and slope conditions.

Soil type, site slope, groundwater level, and distance from wells or surface water all affect system design in Coeur d'Alene. North Idaho's varied geology means each property requires its own evaluated layout.

That depends on your site's soil percolation rate, slope, and groundwater depth. A site evaluation by Panhandle Health District will determine which system type your Coeur d'Alene property can support.

After installation, Panhandle Health District inspects the system before the site is fully backfilled and closed. Your Coeur d'Alene property must pass that inspection for the permit to be finalized.

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Here's what our clients say.

5.0
2 Google reviews

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We absolutely love our new kitchen! A&J Hardison did an amazing job with our remodel and made the whole process so much easier than we expected. They were reliable, easy to work with, and the quality of their work really shows in the finished space. Even better, they came in on budget and had everything finished within the timeframe they originally gave us. No surprise costs or project that dragged on forever! Our kitchen turned out better than we imagined, and we couldn’t be happier with it. I would absolutely recommend A&J Hardison to anyone looking for quality work from people who actually do what they say they’re going to do. We’ll definitely use them again for future projects!

Tristin Warren Google review · September 2026

Jason and Amy helped us with a full remodel of our home. Everything looks absolutely amazing. They made the whole process very easy and had excellent communication and even recommended ways for us to save money. Would definitely recommend them.

Ayonna Lentz Google review · August 2026

Proudly Based in Post Falls, ID

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Idaho License #RCE-28073

Hours

  • Monday 8:00 AM - 6:00 PM
  • Tuesday 8:00 AM - 6:00 PM
  • Wednesday 8:00 AM - 6:00 PM
  • Thursday 8:00 AM - 6:00 PM
  • Friday 8:00 AM - 6:00 PM
  • Saturday Closed
  • Sunday Closed

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