House Excavating LLC – Trusted Septic Installation & Excavation Experts in Defiance, MO and Surrounding Areas

Looking for reliable, licensed septic installation in Defiance, Missouri or nearby communities? House Excavating LLC has proudly served Defiance, New Melle, Augusta, Marthasville, Foristell, Wentzville, Lake St. Louis, and the greater St. Charles and Warren County areas for years with professional septic systems, drain fields, excavation, land grading, and French drain services for both residential and commercial customers.

Call us today at (636) 213-5003 or 573-203-1123 for a free estimate!

Why Defiance, MO Homeowners & Businesses Choose House Excavating LLC

Defiance (population ~150 in the unincorporated community, part of St. Charles County) sits in one of Missouri’s most scenic areas along the Missouri River wine trail. With beautiful rolling hills, large rural lots, and many homes and businesses not connected to municipal sewer systems, a properly designed and installed septic system is essential. Whether you’re building a new custom home on Katy Trail acreage, adding onto an existing property, or replacing a failing system, our team knows the local soil conditions (heavy clay common in the Missouri River bottoms), strict St. Charles County health department regulations, and permitting process inside and out.

Our Core Services in the Defiance Area

• Septic System Installation – Conventional, mound, aerobic, and alternative systems
• Drain Field / Leach Field Replacement & Repair
• Complete Site Excavation & Land Clearing
• Land Grading & Final Grading for proper drainage and erosion control
• French Drains & Surface Water Management
• Commercial Septic Systems for wineries, restaurants, and offices along MO-94

What Our Defiance-Area Customers Are Saying

⭐⭐⭐⭐⭐ “House Excavating replaced our old failing septic and added a new drain field on our 10-acre property in Defiance. They handled everything – permits, soil testing, installation, and final grading. Professional crew, fair price, and the system works perfectly. Highly recommend!” – Mark & Sarah T., Defiance, MO

⭐⭐⭐⭐⭐ “We needed a new septic system for our new home build near the Katy Trail. House Excavating was the only company that actually understood the high water table issues in this part of Defiance. They installed an aerobic system that passed county inspection the first time. Great communication from start to finish.” – Jason R., Defiance, MO

⭐⭐⭐⭐⭐ “Fast response when our drain field collapsed. They came out the same week, excavated the old field, installed a new one, and re-graded the yard. Cleaned up better than it was before. Best excavating company we’ve ever worked with.” – Rachel K., New Melle (serving Defiance area)

⭐⭐⭐⭐⭐ “Commercial septic install for our winery tasting room expansion on MO-94. They worked around our busy season, got the job done on schedule, and stayed within budget. Couldn’t ask for better service.” – Daniel Boone Winery, Defiance, MO

Proudly Serving Defiance & All Surrounding Communities

• Defiance
• New Melle
• Augusta
• Marthasville
• Foristell
• Wentzville
• Lake St. Louis
• Dardenne Prairie
• Weldon Spring
• St. Charles County & Warren County

Ready for Your Septic or Excavation Project?

Don’t wait until a small drainage issue becomes a major headache. Whether you need a brand-new septic system, drain field repair, land grading for a new build, or French drains to keep water out of your basement, House Excavating LLC delivers honest work at fair prices – backed by dozens of 5-star local reviews.

📞 Call now: (636) 213-5003 or 573-203-1123

🌐 Serving Defiance, MO and all surrounding areas with fully licensed & insured septic and excavation services.

House Excavating LLC – Digging Defiance’s dirt the right way, one satisfied customer at a time.