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Get In Touch With Steadfast Septic

Whether you need a free estimate, have questions about your septic system, or you're dealing with an emergency — we're here and we respond fast.

Call or Text Us Directly
📞 208-889-9944
Emergency? Call now — we pick up.
49+
Years, Three Generations
Specialists
In Difficult Sites
✓ Licensed & Insured
✓ Free Estimates
✓ Every System Type
📞 You Talk to the Owner| 💰 Free Estimates| 🛡️ Licensed & Insured| ⚡ Emergency Response| 🔧 Every System Type| ⭐ 450+ Five-Star Reviews| 📋 Fixed-Price Quotes| 📞 You Talk to the Owner| 💰 Free Estimates| 🛡️ Licensed & Insured| ⚡ Emergency Response| 🔧 Every System Type| ⭐ 450+ Five-Star Reviews| 📋 Fixed-Price Quotes|

Licensed in Idaho & Washington · Factory-Certified

  • IDIdaho DEQComplex Installer · #15-11831
  • IDIdaho DEQLicensed Service Provider
  • WASpokane CountyMaster Installer
  • WASpokane CountyOperation & Maintenance
  • Certified Installer & O&M Specialist
  • Lowridge Certified Installer & O&M
  • Certified Installer
  • One Place
    Church
    Official Septic Installation & Repair Specialist
Real Customers, Real Results

Don’t Take Our Word For It

Watch real homeowners tell you exactly what it’s like to work with Steadfast. No scripts, no actors, just the truth.

Twin Lakes Rathdrum Idaho septic tank replacement customer testimonial
Verified Customer
Septic Tank ReplacementTwin Lakes homeowner on the new tank
Hayden Idaho septic backup repair customer testimonial
Verified Customer
Septic Backup RepairHayden homeowner, backup fixed
Septic system replacement customer testimonial
Verified Customer
Full System ReplacementBacking up into the shower — now a new system
Septic installation customer testimonial
Verified Customer
Septic InstallationEmergency complications handled by experts
Pressure distribution septic install customer testimonial
Verified Customer
Pressure Distribution InstallHomeowner on the finished system
Septic repair customer testimonial
Verified Customer
Septic RepairHappy homeowner, in her own words
Verified Google Reviews

What Customers Say About Steadfast

Every review below is a verified Google review from Steadfast Septic’s own Google Business Profile — real homeowners and contractors, in their own words.

★★★★★

“Tyler came out today and went above and beyond to fix a problem that ended up being a lot more than what we discussed over the phone. We were able to get it fixed the same day! Tyler’s price was more than reasonable. He was kind and showed up early to the job! A+ review for this guy. If you have any issues I strongly suggest you use him.”

— Riley Sullivan · Verified Google review for Steadfast Septic

★★★★★

“Tyler is awesome, his vast knowledge of his work is very impressive. My husband and I needed a septic repair. I loved working with him, not only did he get the job done but he was very personable and walked us through the entire process. There was no pressure when he came to check out the system to go with him just pure honesty on the job that needed to be done. 10/10 job and would highly recommend, he is your go to guy for septic!!”

— Katarina Thurber · Verified Google review for Steadfast Septic

★★★★★

“Tyler is knowledgeable and responsive! helped us get up and running asap at what I feel was a fair price. All in all very happy with the job.”

— Mark Burman · Verified Google review for Steadfast Septic

★★★★★

“I emailed this company regarding a few questions/concerns about my septic system and promptly got a phone call. They scheduled over the phone and took some information about the system. I received confirmation texts and a heads up that they were on the way. Tyler was thorough and professional. Great experience as he was genuinely concerned about my issues at hand. Excellent service!”

— Josh Gray · Verified Google review for Steadfast Septic

★★★★★

“As a contractor you need reliability, communication and precision. Steadfast Septic has delivered and exceeded every expectation on every job I have had them on. Not only this but every time I have referred them I have gotten incredible feedback about them as well. This is our go to company for all our septic installations and repairs. Thank you for keeping our job sites moving Tyler!”

— Anton Ramsey · Verified Google review for Steadfast Septic

★★★★★

“The best , reliable, honest and prompt. What else could you want! If you need any septic services he is the guy!”

— Jerinne Audel · Verified Google review for Steadfast Septic

What Homeowners Say★★★★★

Verified Google reviews for our sister company, Lilly’s Septic Service in King County, WA — 450+ five-star reviews. Steadfast is that same operation, same crew leadership and same standards, brought to North Idaho and Spokane County.

L
Linda Sing
Local Guide · 18 reviews
★★★★★

Our septic system was acting up, and after two disappointing and frustrating experiences with other companies, we were desperate for someone reliable, knowledgeable and good at troubleshooting. This team was a game-changer! They responded quickly, knew their stuff, and pinpointed the problem in just 30 minutes. They gave me a clear cost estimate on the spot and had a crew out within a week to fix it. Our system’s back to normal, and the relief is unreal (no pun intended!). Huge thanks to Darren, Josh, Jeremy, Tyler, and Grace for their professionalism and care. You guys deserve 10 stars out of 5!

Repair & Troubleshooting
E
Elena Jouhari
Local Guide · 32 reviews
★★★★★

If you need a septic company, this is the one you need. I cannot recommend them highly enough!!! Tyler took my call in the morning, put me on their schedule for the same day, communicated thoroughly through the process, did some research and troubleshooting and by 1pm he had our pump running again. Perfect manners, immaculate business ethics, highly professional, local through and through. I would give them 10 stars if I could! Literally, restored my faith in humanity today. Thank you!

Emergency Pump Failure
C
Craig H
2 reviews
★★★★★

We had an issue with our septic system drain-field over the weekend. On Sunday I left a msg on the phone for Lilly’s service. Monday morning I received a call and within an hour Josh and Tyler were at my door to assess the situation. They camera scoped the lines and explained the issue going on. They were very thorough and provided recommendations for correction. No pressure, no sales hype, just straight forward sharing of knowledge. I will be proceeding with Lilly’s to conduct the work needed. Good group, quick and responsive.

Drainfield Diagnosis
K
Katie Beck
5 reviews · 6 photos
★★★★★

True professionals! Darren and his team were extremely friendly and informative, answering our long list of questions pre-install, and orchestrating an extremely complex install project with multiple other vendors (plumber, electrician, tank manufacturer) over two days. It was impressive to watch, and we felt very well taken care of throughout what turned out to be a major process. I would hands-down recommend Lilly’s Septic Service to anyone needing a septic system installation or service.

Complex System Install
R
Ray Kneeland
8 reviews · 4 photos
★★★★★

Tyler showed up ahead of schedule and began assessing the issue with our septic system quickly. He took the time to determine the problem before just performing the requested pump out. He quickly replaced the float for the pump gave us great information for the future. Will use them again when we have an issue!!

Diagnosis Before Upsell
A
Andrew Knutzen
Local Guide · 25 reviews
★★★★★

Have used Lilly’s a couple times recently for septic inspections and repair on different properties in Maple Valley. Fast service. Can always get someone on the phone at the office. And when they make mistakes (don’t we all), they own up to them and fix it. I find that to be both rare and admirable. Will keep using them until they give me a reason not to!

Inspections & Repair
M
Megan Brehm
1 review
★★★★★

From my first call, I felt like Tyler really took the time to hear my concerns as a homeowner needing to replace a septic tank in failure. I could not have asked for a better experience - truly happy in my interactions with Lilly’s so far! Don’t have an estimate yet for the work so can’t speak to pricing but have been happy so far.

Tank Replacement
M
mark
3 reviews
★★★★★

I did a septic tank inspection and pumping and unfortunately the results were not good. However both guys did a great job, went to a lot of work to try to get it to pass and carefully explained everything and explained options and likely results. I really appreciated the job they did.

Inspection & Pumping

Ready to be our next success story?

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Reach Us

Multiple Ways to Connect

📞

Call or Text

208-889-9944

Call for immediate help or text us your question. Emergency calls prioritized, with after-hours text response.

📧

Email Us

Tyler@SteadfastSeptic.com

Send us details about your project or question. We respond within one business day.

🕐

Business Hours

Mon – Fri9am – 4pm
SaturdayBy Appt
SundayClosed
Emergency Service — Fast Callback
🚨
Septic Emergency?

Sewage Backup, Alarm, or Overflow?

Don't wait for business hours. If your system is backing up, overflowing, or your alarm won't stop — call us right now. We handle emergencies fast.

📞 Call 208-889-9944 Now
Why Us

Why Homeowners Call Steadfast

We're not the cheapest. We're the ones you call when you need it done right the first time.

⚡

You Talk to the Owner

Submit a request and we call you back quickly. No phone tag, no waiting days for a quote. We respect your time.

🔧

Every System Type — No Exceptions

Gravity, pressure, mound, sand filter, ATU, drip — whatever you've got, we know how to work on it. No job turned away because it's "too complicated."

💰

Straight Answers, Honest Pricing

We tell you exactly what's wrong, what it costs, and what your options are. No upselling, no mystery charges, no BS.

🛡️

49+ Years, Three Generations

Our team has decades of hands-on experience across installations, repairs, inspections, and complex system replacements. We've seen it all.

Coverage

Areas We Serve

Septic installation, repair, and inspection across North Idaho and Eastern Washington

📍

North IdahoKootenai & Bonner Counties

Athol
Bayview
Coeur d'Alene
Dalton Gardens
Hauser
Hayden
Post Falls
Rathdrum
Sagle
Sandpoint
Spirit Lake
Twin Lakes
📍

Eastern WashingtonSpokane County

Colbert
Deer Park
Green Bluff
Liberty Lake
Mead
Newman Lake
Otis Orchards
Spokane Valley
Don't see your city? Call us anyway — if you're in the region, we can probably help.
🔧

Ready to Get Started?

Whether it's a quick question or a full system replacement, the first step is the same — reach out and we'll take care of the rest.

When infrastructure matters, experience matters.