Septic System Installation & Repair in Spokane, WA

Septic system contractors design, install and repair the on-site wastewater systems used by homes that are not connected to a public sewer. Their work covers septic tanks, distribution lines, pumps and the drainfield (leach field) that treats water in the soil.

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Common septic system services include:

  • New septic system design and installation
  • Drainfield repair and replacement
  • Septic tank, baffle and lid repairs or replacement
  • Pump, alarm and filter repairs for pumped systems
  • Inspections for home sales and troubleshooting

Call a septic contractor if drains back up, sewage odors linger outside, the ground over the drainfield stays soggy, or you are building on a lot that needs a new system. Routine pumping has its own category.

Top Professionals near Spokane, WA

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Affordable Drains
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Spokane, WA Septic System Installation & Repair

At Affordable Drains, we provide high-quality, professional drain cleaning and maintenance services for residential and commercial properties. With over 15 years of experience, our team, led by General Manager Chris Jordan, is dedicated to delivering efficient, reliable, and affordable solutions to keep your drains flowing smoothly. Whether it’s a clogged kitchen sink, bathroom drain, floor drain, storm drain, sewer, or septic line, we have the expertise to clear blockages efficiently. If you live in an older home, tree roots invading your pipes can become a recurring issue. We offer annual maintenance plans to help prevent future blockages and costly repairs.

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Boucher Construction LLC
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Spokane Valley, WA Septic System Installation & Repair

Boucher Construction, LLC has been providing high quality, residential and commercial excavation services in Spokane, the Spokane Valley, Liberty Lake, Deer Park, Colbert, and the surrounding areas since 2005. We are family owned and operated and fully licensed and bonded. We are dedicated to providing the highest quality workmanship and service at competitive rates. We specialize in excavation for foundations, site preparation, utility installation, septic system installations, sewer hookups, and much more.

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Gober's LLC
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Spokane Valley, WA Septic System Installation & Repair

We Keep Your Septic Tank & System In Good Working Order Over time tanks can leak or even crack. We seal tanks with seam leaks and replace unfixable tanks. If you have a bigger problem like slow or no drainage to the drainfield, we perform an exploratory to determine the problem. We also repair and replace baffles, lines, and filters. Keep your tank in great condition so you don’t end up spending a ton of money on replacing your septic tank or system.

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Lilac City Septic Services Co
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Greenacres, WA Septic System Installation & Repair

We offer commercial and residential regular maintenance scheduling, septic tank pumping, filter cleaning, drain field repair and replacement, baffle replacement and cleaning, grease trap cleaning, and line replacement. Riser installation, all excavation projects.

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Septic System Design
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Spokane, WA Septic System Installation & Repair

History of Septic Systems The use of septic systems is nothing new and dates back to the late 1800s. Prior to that time, the outhouse was the standard bathroom. It typically consisted of a hole in ground with a wooden bench centered above the hole. And if you’ve ever had the “opportunity” to use one, you quickly realize they’re not very appealing. The septic tank system is believed to have been invented in France in the 1860s. And it didn’t take long before it was being used in the United States. The first known installation of a septic tank in the United States was in 1876. With the increasing availability of electricity and pumps to provide running water inside buildings, it much longer before the bathroom moved indoors as well. Each state has developed its own codes to regulate the installation and use of septic systems. Florida uses Florida Administrative Code, Georgia uses the Department of Human Resources Chapter 290-5-26, Texas uses Texas Administrative Code Title 30 Part 1 Chapter 285. Regardless, always check the code requirements for the state in which the system will be constructed. There are differences, especially in system loading rates and setback requirements. THE COMPONENTS A typical gravity septic system consists of a septic tank, filter, effluent lines, a header pipe or distribution box, and a drainfield. Other systems may also include a dosing tank, an effluent pump, or an Aerobic Treatment Unit (ATU). The septic system can be a gravity system or a pumped system depending on the site conditions. And it could be an in-ground or an above-ground (mounded) system regardless of it being a pumped system... as we’ll see a little later in this course.

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Tri-County Septic And Grease Trap Solutions
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Spokane, WA Septic System Installation & Repair

Tri County Septic LLC specializes in residential and commercial septic tank and grease trap pumping services. We are family owned and operated, and have more than 18 years of experience! Call today

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Vietzke Trenchless Inc
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Airway Heights, WA Septic System Installation & Repair

"When you need large scale sewer and water line solutions, look no further! Your neighbors come to us for professional line repair, replacement, and more in Spokane, WA and surrounding areas. Call us today to schedule your next appointment to experience the difference with our team of experts. 24/7 Emergency services available! At Vietzke Trenchless we appreciate the opportunity to serve you. When you work with us, you can expect advanced solutions that are guaranteed to return your property to normal and increase its value. Take advantage of our resources—the best tools, technologies, technicians, and staff dedicated to your safety and comfort. We provide thorough assessments before starting any work, so you receive the right solution."

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Septic System Questions and Answers

What does a septic system contractor do?

A septic contractor installs new septic systems and repairs existing ones, including tanks, pipes, pumps, alarms and drainfields. Many also inspect systems for home sales and help owners understand the soil testing and design steps a new system requires.

What are signs my septic system needs repair?

Common signs include slow drains or backups throughout the house, sewage odors near the tank or drainfield, standing water or very green grass over the drainfield, and a pump alarm that keeps sounding. Pumping alone may not fix these problems if part of the system has failed.

How do I choose a septic contractor?

Look for a contractor experienced with the system types used in your area, ask how they will diagnose the problem before recommending replacement, and get written estimates. Septic work is often regulated locally, so ask what permits, soil tests or inspections the job requires and who handles them.

What affects the cost of septic installation or repair?

Cost depends on the size and type of system, soil and site conditions, the depth and accessibility of components, whether a pump or alternative treatment is needed, and local permit and design requirements. Restoring landscaping after excavation can also add to the total.

How should I prepare for septic system work?

Gather any records or diagrams of your system and know where the tank lid and drainfield are if possible. Keep vehicles off the system area, plan for reduced water use during the work, and make sure equipment can reach the site.