House Excavating LLC – Trusted Septic Installation & Excavation Experts in Weldon Spring, MO 63304

House Excavating LLC is your local, family-owned leader in septic system installation, drain field replacement, land grading, excavation services, and French drain solutions serving Weldon Spring, MO 63304 and all surrounding communities in St. Charles County.

With decades of hands-on experience in the Greater St. Louis area, we understand the unique soil conditions, high water tables, and strict St. Charles County Health Department regulations that come with installing or repairing septic systems in Weldon Spring and nearby towns like Cottleville, Dardenne Prairie, O’Fallon, St. Peters, and Defiance.

Call us today at (636) 213-5003 or (573) 203-1123 for a free, no-obligation estimate.

Why Weldon Spring Homeowners & Businesses Trust House Excavating LLC

Weldon Spring, Missouri (population ~5,500 as of 2025) sits along the Missouri River bluffs and Katy Trail, blending quiet rural living with quick access to Highway 94 and I-64. Many properties here rely on septic systems rather than city sewer – especially in the established neighborhoods around Whitmoor Country Club, the older homes near Independence Road, and new developments off Gutermuth Road.

We specialize in:

• New residential septic system installation (conventional, mound, and aerobic systems)
• Commercial septic systems for offices, restaurants, and small industrial sites
• Drain field / leach field replacement and expansion
• Complete site preparation & excavation
• Land grading and finish grading for proper drainage
• French drains, curtain drains, and surface water management
• Emergency septic repairs and pump-outs

What Our Weldon Spring Area Customers Are Saying

⭐⭐⭐⭐⭐ “House Excavating replaced our failing drain field in Weldon Spring Heights last month. They handled everything – permits, soil testing, and installation – in under a week. Professional crew and fair pricing. Highly recommend!” – Mark T., Weldon Spring, MO 63304

⭐⭐⭐⭐⭐ “We needed a new septic system for our commercial building off Technology Drive. They worked around our business hours and passed county inspection the first time. Best excavation company we’ve used in St. Charles County.” – Sarah K., Weldon Spring Commercial Client

⭐⭐⭐⭐⭐ “After heavy spring rains flooded our yard every year, House Excavating installed French drains and re-graded the entire property. Zero water issues this year – and it looks amazing!” – The Johnson Family, Gutermuth Rd, Weldon Spring

⭐⭐⭐⭐⭐ “Fast response when our tank backed up. They pumped it the same day and found the real issue (crushed pipe). Honest, clean work, and reasonable rates.” – Robert L., Hwy 94 Area

Proudly Serving Weldon Spring & All Surrounding Areas

• Weldon Spring 63304
• Weldon Spring Heights
• Cottleville
• Dardenne Prairie
• O’Fallon
• St. Peters
• Lake St. Louis
• Defiance
• Augusta
• Foristell
• Wentzville

Fully licensed, insured, and permitted with St. Charles County Health Department.

Ready for a reliable septic system that will last decades? Contact the local experts who know Weldon Spring’s soil and regulations inside and out.

📞 House Excavating LLC (636) 213-5003 • (573) 203-1123 Serving Weldon Spring, MO 63304 and St. Charles County with pride.

Get Your Free Septic Installation or Excavation Quote Today!