Septic Installation in O’Fallon, MO – House Excavating LLC

Looking for reliable, professional septic installation in O’Fallon, Missouri and the surrounding areas? House Excavating LLC has been the trusted local choice for residential and commercial septic systems, drain field installation, excavation, land grading, and French drain services for years.

Located in the heart of St. Charles County, O’Fallon is one of Missouri’s fastest-growing cities with a population of over 93,000 residents (as of 2024). Homeowners and businesses in O’Fallon, Lake St. Louis, Wentzville, St. Peters, Cottleville, Dardenne Prairie, and Weldon Spring trust House Excavating LLC because we understand the unique soil conditions, high water tables, and local regulations in the Greater St. Louis region.

Why O’Fallon Homeowners & Businesses Choose House Excavating LLC

• Licensed & Insured septic system installers
• New septic tank and drain field installations
• Septic system replacements & repairs
• Complete site preparation & excavation
• Professional land grading and clearing
• French drain and surface water management
• Free estimates & honest upfront pricing
• Fast response times throughout St. Charles & Warren Counties

What Our O’Fallon-Area Customers Are Saying

⭐⭐⭐⭐⭐ “House Excavating replaced our failing septic system in O’Fallon last month and we couldn’t be happier. They handled everything from permits to final inspection. Professional crew, clean work site, and fair pricing. Highly recommend!” – Mike R., O’Fallon, MO

⭐⭐⭐⭐⭐ “Best excavation company we’ve worked with in the St. Louis area. They installed a new drain field and graded our commercial lot in Wentzville. On time, on budget, and excellent communication throughout the project.” – Sarah T., Wentzville, MO

⭐⭐⭐⭐⭐ “We had major water issues in our yard in Lake St. Louis. House Excavating installed French drains and re-graded the property – problem solved! Great local company that actually shows up when they say they will.” – James & Lisa K., Lake St. Louis, MO

⭐⭐⭐⭐⭐ “Outstanding service from start to finish. They installed a brand new septic system on our new home build in Dardenne Prairie. Knowledgeable, courteous, and very fairly priced. Will use them again for any future excavation needs.” – David M., Dardenne Prairie, MO

Local Septic & Excavation Experts Serving O’Fallon & All Surrounding Communities

Whether you’re building a new home in one of O’Fallon’s growing subdivisions, replacing an old septic tank on existing property, or need commercial site work, House Excavating LLC has the equipment, experience, and local knowledge to get the job done right the first time.

We proudly serve:

• O’Fallon, MO
• Lake St. Louis
• Wentzville
• St. Peters
• Cottleville
• Dardenne Prairie
• Weldon Spring
• Defiance
• New Melle
• Foristell
• And all of St. Charles & Warren Counties

Contact House Excavating LLC Today

Don’t trust your septic installation or excavation project to just anyone. Choose the local O’Fallon company with proven results and hundreds of satisfied customers.

📞 Call Now for a Free Estimate: (636) 213-5003 or (573) 203-1123

House Excavating LLC – Your Trusted O’Fallon Septic System & Excavation Professionals Serving O’Fallon and the surrounding Missouri communities with pride.