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TRUSTED BY POST FALLS, ID HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon49
    Verified septic tank services reviews

Top-Rated Septic tank pros in Post Falls - Updated Nov 2026

Avatar for Rocky Mountain Excavation & Concrete, LLC
Rocky Mountain Excavation & Concrete, LLC
5.0(
7
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For Business

Serving Post Falls, ID and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

"Last fall I had my septic tank pumped and found the leach field was failing. I called 12 places that put in septic system to do the work. Only one called back but was too busy. I filled out a computer help add for this service. Within 10 minutes John called me and was interested in doing it. The next afternoon he showed up and gave me a bit which was reasonable price. I already researched this. Couple months later we have a new leach field. Extremely happy with John and crew. Strongly recommend him. Thanks John."
4 foot trench to grade
First exit
45 elbow
mini ex
Clients house

+6

Response time1 day
5 neighbors recently requested a quote
Recommended by83%of homeowners
Pain Free Excavation
4.7(
11
)
Septic System - Install or ReplaceSeptic System - RepairSeptic System - Install or Replace - For Business+1 more

Serving Post Falls, ID and surrounding areas

Approved

In business since 2018

Free estimates

Credit card accepted

"This company was everything you could ask for. Their communication was perfect and they showed up when they said they would, were professional, and their bid was reasonable. They stayed on the job until it was finished and they left the site in as good of condition as it was when they started. I would hire them again."
Response time1 day
5 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Inovate, LLC
Inovate, LLC
4.7(
6
)
Septic System - Install or ReplaceSeptic System - RepairSeptic System - Install or Replace - For Business+1 more

Serving Post Falls, ID and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"needed a septic repair ASAP because of a cracked tank. Dustin was there the next day and removed the 1000gal tank, sealed it and had it back in place the following day. He ran into some challenges (digging with trench shovel) ETC. More than enough equipment to handle the job. I would highly recommend Dustin. PS I am trying to talk him into doing some other work for me. Thank You"
septic installation
septic tanks
drain field
Mother in law apartment
concrete/Framing

+12

Response time1 day
Response rate91%
27 neighbors recently requested a quote
Avatar for Stone Fox LLC
Stone Fox LLC
5.0(
6
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+1 more

Serving Post Falls, ID and surrounding areas

Approved

In business since 2023

Free estimates

Credit card accepted

"If you are looking for a truly exceptional construction company, look no further than Stone Fox Construction, and owner, Ryan Morris. Morris, (the name he likes to be referred to), and his team, (Tim, Elijah and Dennis), constructed a large retaining wall on my property in Hayden, ID. The retaining wall material was the Rosetta collection Grand Ledge and Kodah, which was fabricated and obtained from Kimber Precast located in Post Falls, ID. The retaining wall was over 200 lineal feet, and about 6' high at the highest point. Morris and his team did an absolutely phenomenal job installing the Grand Ledge and Kodah retaining walls. To describe the installation as extremely detailed and meticulous would almost seem understated. Stone Fox Construction left no stone, (pun intended), unturned in assuring the retaining wall was installed correctly. I would give Morris, and his team Tim, Elijah, and Dennis, (aka Stone Fox Construction), 10 stars if that were possible. Fantastic job!"
Retaining Wall
Retaining Wall
Precast Steps
Drainfield Supply
Eljen Drainfield

+4

1 neighbors recently requested a quote
Avatar for Duncan Construction & Development LLC
Duncan Construction & Development LLC
4.9(
9
)
Septic System - Install or Replace - For Business

Serving Post Falls, ID and surrounding areas

Approved

In business since 1990

Free estimates

Warranties offered

"I would highly recommend Duncan Construction & Development! Great communication, Fair pricing, reliable., and quality work. They did a great job from start to finish!! Answered all our questions at our site evaluation and finished our job in a timely manner. Did a great job with our excavation and septic install . Will definitely use them again in the future on more projects!"
Response time2 hrs
Response rate97%
Recommended by87%of homeowners
Avatar for Inland Northwest Contracting, LLC
Inland Northwest Contracting, LLC
5.0(
5
)
Septic System - Install or Replace

Serving Post Falls, ID and surrounding areas

Approved

In business since 2021

Free estimates

Small jobs welcome

"Matt was awesome to work with. Called me within two minutes of using Angi's list. Very professional and came out the following day to do an estimate. Now that the project has been completed, my two French Bulldogs are in heaven on their new lawn! Highly recommend Inland!!!"
Response time10 hrs
6 neighbors recently requested a quote
Recommended by100%of homeowners
PLUMBNH2O LLC
New to Angi
Septic System - Install or Replace

Serving Post Falls, ID and surrounding areas

Approved

In business since 2024

Credit card accepted

Offers commercial services

About us \nQuick and reliable service to all 5 boroughs and Nassau County. We cover outdoor sewer replacement, outdoor water mains, drain cleaning, camera inspection, water jetting, NYC backflow installation and inspection. Don't hesitate to contact our team of professional plumbers today.

19 neighbors recently requested a quote
Showing 1-10 of 17
Septic Tanks FAQs, answered by experts

Both materials are suitable for septic tanks, but concrete usually lasts longer than plastic. If you’re buying a new tank, the prices are similar for plastic ($500 to $2,500) and concrete ($700 to $2,000). However, there’s a notable difference in repair prices, with plastic tank repair costs ranging from $150 to $2,000, while concrete repairs are between $700 and $5,000.

You only need to pump the septic tank. The leach field allows the liquid and waste to naturally seep into the ground, so there’s no need to pump the leach field. You should call a local septic tank pumping service to remove the materials from the tank every three to five years. Without pumping the septic tank occasionally, solids could flow into the leach field pipes and clog them.

Septic distribution boxes, also called D-boxes, tend to last over 30 years if taken care of extremely well. In most cases, however, they tend to last anywhere from 15 years to 40 years. Regular cleaning and maintenance, as well as living in an area that doesn’t flood the tank or the system regularly, will all have an impact on the lifespan of the box.

How do you set your well’s pressure tank? All you need to do is first drain the tank of water and find the pressure switch. Remove the switch cover and adjust the switch with a wrench—clockwise to increase water pressure, and counter-clockwise to reduce it. Each complete turn of the nut on the switch should equal 2.5 psi. Once this is done, replace the switch cover. All that’s left is to adjust the pressure of the tank itself using an air compressor and a tire gauge to support the new setting.

If you aren’t sure if you have a septic tank or a cesspit, you can check your property records or inspect your drainage system. A septic tank has an outlet pipe that allows liquid to drain into a soakaway or drain field, while a cesspit is a sealed tank that requires frequent emptying. If you notice a manhole cover and no nearby drainage field, it’s likely a cesspit. Signs like slow drainage or a frequent need for pumping can also provide clues. A professional inspection is the easiest way to confirm if your home runs on a septic tank or cesspit.

The Post Falls, ID homeowners’ guide to septic tank services

From average costs to expert advice, get all the answers you need to get your job done.