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Hillside Septic ServiceSeptic service company in O'Fallon, MO

Hillside Septic Service is a septic service company at 447 S Lindsey Rd, Old Monroe, MO 63369, ranked #7 of 38 septic service companies in O'Fallon and rated 3.7 from 10 Google reviews. Open 7 days a week.

O'Fallon, MOUpdated 0 paid placements in any rankingHow we rank

Call (636) 668-8338

Key facts

Key facts about Hillside Septic Service
Address447 S Lindsey Rd, Old Monroe, MO 63369, O'Fallon, MOGet directions
Phone(636) 668-8338
HoursMonday to Sunday: 7 AM – 5 PM
Google rating3.7 from 10 Google reviews

Trades

Each trade shows the evidence we matched it on.

  • Septicmain tradeGoogle main category

Service area

Serves O'Fallon and 9 towns within 25 miles: Troy, Wentzville, Lake Saint Louis, Dardenne Prairie, Saint Peters, Weldon Spring, Saint Charles, Warrenton and Chesterfield.

Based in O'Fallon, MOView on map

Opening hours

Opening hours for Hillside Septic Service
DayHours
Monday7 AM – 5 PM
Tuesday7 AM – 5 PM
Wednesday7 AM – 5 PM
Thursday7 AM – 5 PM
Friday7 AM – 5 PM
Saturday7 AM – 5 PM
Sunday7 AM – 5 PM
  • Open evenings — no
  • Open Saturdays
  • Open Sundays

Reviews

ContractorsRanked reviews

No ContractorsRanked reviews yet

Google

3.7from 10 Google reviews

Hired Hillside Septic Service? Write a review

Questions about Hillside Septic Service

How is Hillside Septic Service ranked in O'Fallon?

Hillside Septic Service is ranked #7 of 38 septic service companies in O'Fallon by CR Score, with 56 out of 100 as of November 2026. The score weighs reputation, credentials, review volume, recency, availability, trade focus, proximity, claimed profile, partnered and ContractorsRanked reviews. No business can pay to change its rank.

What are Hillside Septic Service’s hours?

Hillside Septic Service is open 7 days a week. Its listed hours are Monday to Sunday, 7 AM – 5 PM. On Saturdays it is open 7 AM to 5 PM, and on Sundays 7 AM to 5 PM. Hours come from the business listing; holiday hours may differ.

What areas does Hillside Septic Service serve?

Serves O'Fallon and 9 towns within 25 miles: Troy, Wentzville, Lake Saint Louis, Dardenne Prairie, Saint Peters, Weldon Spring, Saint Charles, Warrenton and Chesterfield. The list is based on the business's location and the usual service radius for septic and sewer service. Confirm your address is covered when you call.

What do Google reviews say about Hillside Septic Service?

Hillside Septic Service has a rating of 3.7 from 10 Google reviews. The CR Score adjusts the star rating for review count, so a high rating from a few reviews counts for less than the same rating from many.

How do I contact Hillside Septic Service?

Call Hillside Septic Service on (636) 668-8338. The business is at 447 S Lindsey Rd, Old Monroe, MO 63369, O'Fallon, MO. Ask for a written estimate before any work starts.

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Compare nearby septic service companies

Hillside Septic Service compared with nearby businesses
BusinessRankCR ScoreGoogle ratingLicense verifiedSaturdaySundayDistance away
Hillside Septic Service (this business)—563.7 (10)—YesYes
Mr. Rooter Plumbing of St. Charles#5574.8 (356)—YesYes18.6 mi
Pierson Plumbing Sewer & Drain L.L.C#6574.8 (169)—YesYes21.3 mi
Warrior Sewer and Drain#8564.8 (459)—YesNo22.4 mi

See all 38 ranked septic service companies in O'Fallon