Top-rated septic system installers and replacers.

Get matched with top septic system installers and replacers in Lebanon, MO

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Septic system installers and replacers in Lebanon

Avatar for Honest Abe's Home Services
Honest Abe's Home Services
4.2(
195
)

Serving Lebanon, MO and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"Very professional ,prepared, exactly what I needed. System replaced with excellent recommendation water quality recognized within hours of installation !!!!!"
During Demo
After New Sub-floor
Job Complete
Floor Repair
Sub-floor Repair

+2

Response time10 hrs
17 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for Dan's Well Done, LLC
Dan's Well Done, LLC
5.0(
7
)

Serving Lebanon, MO and surrounding areas

In business since 2024

Free estimates

Dan's Well Done, LLC proudly serves our customers with pride, integrity and attention to details that matter most to you. This is one of the many things that sets us apart from the rest. We are locally owned and operated so give us a call today!

Response time2 days
5 neighbors recently requested a quote
Recommended by28%of homeowners
Avatar for Troyer's Excavating
Troyer's Excavating
4.9(
6
)

Serving Lebanon, MO and surrounding areas

In business since 2020

Free estimates

Troyer's Excavating, proudly serves its customers with pride, integrity, and attention to the details that matter most to you. This is one of the many things, that set us apart from the rest. We are locally owned and operated. Give us a call today!

Response time6 hrs
Recommended by100%of homeowners
Danforth Solutions LLC
5.0(
4
)

Serving Lebanon, MO and surrounding areas

In business since 2021

Free estimates

Emergency services offered

"I would love to give Steve and his crew (even Junior) a 12 star rating. Steve and crew went over and beyond what we expected. He kept in touch with us regarding the installing of our failing system. Very professional and the work was exceptional. Showed up when expected and completed the work on time. Would hire them over and over again. Thanks Steve for all your help."
Septic Install
Septic Install
Septic Install
Septic Install
Septic Install

+23

Response time2 days
Recommended by33%of homeowners
Avatar for Choice Home Warranty
Choice Home Warranty
4.0(
5,676
)

Serving Lebanon, MO and surrounding areas

In business since 2008

Emergency services offered

Credit card accepted

"So far when Choice Home Warranty is needed they are right trying all there mite to complete what need that I have. I call about my heating system today and they started right then trying to locate a technician to repair or as they say replace. I just know it's very cold and we need the heat very much there is small children in the home. I believe the CHW will do what they say they'll do and more."
Recommended by82%of homeowners
Avatar for American Home Shield – Home Warranty
American Home Shield – Home Warranty
3.5(
5,688
)

Serving Lebanon, MO and surrounding areas

In business since 1971

Credit card accepted

"AHS is ok. They cover repairs of most everything under the roof of your house. The companies that contract with them are not always the best. You call AHS with the issue, they send a fax to the repair company and give you the contact info. If they don't contact you within 24 hours, you call them. Sometimes they answer, sometimes they don't. When they arrive (usually three days or so later), they service the item. if it has issues within the 90 days, you call AHS again, they are sent out with no charge. If the serviceman decides the unit is unrepairable, AHS will allow you to choose a replacement from their listing (usually not as good as what you have) they will install and remove your old item, or give you wholesale amount to buy and install your own. Prices vary on what you want covered and what you want the copay to be, plus where you live. For me it is 49.99 per month with a 75.00 time of service order. You can have more than one item serviced at the same time under the same fee. If you have a SEAR product the repair guys are great. Not that wild about the other ones they send out. But it is a big savings compared to calling someone on your own. The cost of service is only the 75.00 copay."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+2

Recommended by65%of homeowners
Avatar for Cedar Hills Septic & Inspection
Cedar Hills Septic & Inspection
5.0(
1
)

Serving Lebanon, MO and surrounding areas

In business since 2021

Free estimates

Small jobs welcome

At Cedar Hills Septic & Inspection, we install and repair septic systems, both basic and advanced. We can service lagoons too. We look forward to earning your business. \nWE CURRENTLY DO NOT DO SEPTIC PUMPING.

Response time2 days
Recommended by100%of homeowners
Doctor Rooter & Plumbing
5.0(
1
)

Serving Lebanon, MO and surrounding areas

In business since 1998

Free estimates

Credit card accepted

Customer satisfaction is what determines our success, which is why we take a hands-on approach. When interacting with Doctor Rooter & Plumbing, you'll notice that we're particularly focused on the principles of quality workmanship, timely completion, competitive pricing and integrity in all our business dealings. We combine knowledge and research with our extensive practical experience to ensure a specialized approach for your project needs. Contact us today for a fair and accurate estimate of your project. We look forward to adding you to our long and growing list of happy customers. \n\n \n

Response time10 hrs
Response rate92%
Recommended by100%of homeowners
Showing 1-10 of 17
FAQs for septic system installation and replacement projects in Lebanon, MO

The smallest standard septic system uses a 500-gallon tank, which costs between $875 and $1,150 installed. This size works well for single-occupant dwellings with minimal wastewater production. However, many local regulations specify minimum tank sizes, so check with your building department before committing to this compact option. Some jurisdictions require at least 750 gallons regardless of home size to ensure adequate waste processing capacity.

The installation timeline varies based on site conditions, permit processing, and contractor schedules. The process includes obtaining permits, conducting soil tests, excavation, tank placement, leach field construction, and final connections. Weather conditions, soil challenges, and inspection scheduling can all affect the overall timeline. It's wise to begin planning well in advance of when you need the system operational.

The most economical approach is to install a conventional anaerobic system with a plastic tank. To minimize costs while maintaining legality, obtain multiple quotes from licensed installers, consider scheduling during their slower seasons, and handle basic site preparation yourself. Never skip permits or required testing to save money—illegal installations can result in significant fines and mandatory removal, ultimately costing far more than doing it right initially.

Regular pumping helps prevent system failures and extends operational life. Most small systems require pumping every three to five years, though frequency depends on household size and usage patterns. Pumping services cost between $290 and $530, making this maintenance expense relatively minor compared to potential repair costs ranging from $500 to $2,600 for neglected systems. Establishing a regular maintenance schedule based on your installer's recommendations helps avoid costly emergency services.

The Lebanon, MO homeowners’ guide to septic system installations and replacements

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