✓ MO License Verified #37319 ★ 4.1 (18 reviews) Septic System InstallationSeptic RepairAerobic System Service
Verified Oct 2026 · Unclaimed listing
Septic System Installation in De Soto, MO
34 license-verified pros offer septic system installation in the De Soto area. Typical cost: $3,600 to $12,500, averaging about $8,027.
- Checked against Missouri licensing records
- Verification date on every listing
- Closed businesses auto-removed
A new system is permitted work. The installer must be licensed, and in most counties a soil evaluation and permit come before any digging.
Septic System Installation pros serving De Soto
⚠ MO registration lapsed ★ 4 (8 reviews) Septic Tank PumpingSeptic System InstallationSeptic Repair
Verified Oct 2026 · Unclaimed listing
Mots Excavation LLC
70/100 ✓ MO License Verified #39593 ★ 4.3 (6 reviews) Septic Tank PumpingSeptic System InstallationSeptic Repair
Verified Oct 2026 · Unclaimed listing
Show Me Soils
70/100 ⚠ MO registration lapsed ★ 4.9 (323 reviews) Septic Tank PumpingSeptic System InstallationSeptic RepairAerobic System Service
Verified Oct 2026 · Unclaimed listing
NewShu Contracting LLC
55/100 ✓ MO License Verified #39335 Septic System InstallationSeptic Repair
Verified Oct 2026 · Unclaimed listing
Clog Boss Drains and Septic
50/100 ⚠ MO registration lapsed ★ 4.9 (124 reviews) Septic Tank PumpingSeptic System InstallationSeptic RepairAerobic System Service
Verified Oct 2026 · Unclaimed listing
Dean Robinson Excavating Inc
45/100 ✓ MO License Verified #30936 Septic Tank PumpingSeptic System InstallationSeptic RepairAerobic System Service
Verified Oct 2026 · Unclaimed listing
Dig-It-Inc.
45/100 ✓ MO License Verified #31126 Septic System InstallationSeptic RepairAerobic System Service
Verified Oct 2026 · Unclaimed listing
Matt Girardier Excavating
70/100 ✓ MO License Verified #32259 ★ 5 (5 reviews) Septic Tank PumpingSeptic System InstallationSeptic RepairAerobic System Service
Verified Oct 2026 · Unclaimed listing
Rich Gullet & Sons
70/100 ✓ MO License Verified #31145 ★ 3.1 (7 reviews) Septic System InstallationSeptic RepairAerobic System Service
Verified Oct 2026 · Unclaimed listing
✓ MO License Verified #31079 ★ 4.6 (22 reviews) Septic Tank PumpingSeptic System InstallationSeptic RepairAerobic System Service
Verified Oct 2026 · Unclaimed listing
Bob's Plumbing Company
70/100 ✓ MO License Verified #30540 ★ 4.4 (29 reviews) Septic System InstallationSeptic RepairAerobic System Service
Verified Oct 2026 · Unclaimed listing
Looking for other work? See all septic services in De Soto.
What septic system installation costs
| Service | Typical range | National average |
|---|---|---|
| Septic System Installation | $3,600 to $12,500 | ~$8,027 |
Source: realestate.usnews.com. National ranges. Rural Missouri markets often land mid-range. Full cost guide →
Septic System Installation questions
Do I need a permit?
Yes. Every county here requires a construction permit and, in most cases, a soil or perc evaluation first. See our permit requirements pages by county.
How long does installation take?
Typical residential installs run 1 to 3 days of on-site work once permits are approved; the permit and evaluation stage usually takes longer than the digging.
Keep looking
- All septic pros in De Soto
- Septic Repair in De Soto
- Aerobic System Service in De Soto
- Septic Tank Pumping in De Soto
- Septic System Installation in Hillsboro(6 mi)
- Septic System Installation in Bonne Terre(15 mi)
- Septic System Installation in Eureka(25 mi)
- Septic System Installation in Pacific(26 mi)
- Septic System Installation in St. Clair(27 mi)
- Septic System Installation in Union(31 mi)
- Septic System Installation in Sullivan(33 mi)
- Septic System Installation in Washington(38 mi)
- Hillsboro, MO(6 mi)
- Bonne Terre, MO(15 mi)
- Eureka, MO(25 mi)
- Pacific, MO(26 mi)
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