62/100CR Score
Ranked #1 because of its Google rating and review volume: 4.6★ from 168 Google reviews, the most in Ames.
Best Septic Service Companies in Ames, IA (2026)
9 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Ames: Roto-Rooter Sewer Drain Service, CR Score 62/100; 4.6★ from 168 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Draintech Plumbing Drain Cleaning Hydro Jetting, posts 24/7 hours; ranked #2 of 9.
- 2
Most-reviewed: Draintech Plumbing Drain Cleaning Hydro Jetting, 145 Google reviews at 4.4★, the most of 9 ranked after Roto-Rooter Sewer Drain Service; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
9 Ames septic service companies are ranked here by CR Score, from ten published factors. 4 are open 24/7, 5 open Saturdays and 5 open Sundays, based on posted hours. The median Google rating is 4.6★ across 9 rated businesses.
Top 9 septic service companies in Ames at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Roto-Rooter Sewer Drain Service | 62 | 4.6★ (168) | Ames | 24/7 | Overall |
| 2 | Draintech Plumbing Drain Cleaning Hydro Jetting | 59 | 4.4★ (145) | Ames | 24/7 | Emergencies, Most reviews |
| 3 | River to River Onsite Septic Solutions | 58 | 4.6★ (54) | Ames | — | — |
| 4 | Behle Inc | 57 | 4.5★ (65) | Ames | 24/7 | — |
| 5 | Rogers Septic Maintenance & Repair | 53 | 4.6★ (54) | Des Moines, 25 mi away | 24/7 | — |
| 6 | Des Moines Drain & Sewer | 53 | 4.4★ (130) | Des Moines, 24 mi away | Sat · Sun | — |
| 7 | Cooper and Sons, Inc. | 47 | 3.4★ (22) | Ames | — | — |
| 8 | Iowa Water & Waste Systems | 46 | 5.0★ (15) | Boone, 12 mi away | — | — |
| 9 | Molitor Construction, LLC | 42 | 5.0★ (3) | Boone, 12 mi away | — | — |
The 9 best septic service companies in Ames, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Based in Ames
59/100CR ScoreRanked #2 because of its Google rating and review volume: 4.4★ from 145 Google reviews.
Based in Ames
58/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.6★ from 54 Google reviews, listed on Google as “Septic system service”.
#4 Behle Inc
Based in Ames
57/100CR ScoreRanked #4 because of its Google rating and review volume: 4.5★ from 65 Google reviews.
Based in Des Moines, 25 mi away
53/100CR ScoreRanked #5 because of its Google rating and review volume: 4.6★ from 54 Google reviews.
Based in Des Moines, 24 mi away
53/100CR ScoreRanked #6 because of its Google rating and review volume: 4.4★ from 130 Google reviews.
Based in Ames
47/100CR ScoreRanked #7 because of its Google rating and review volume: 3.4★ from 22 Google reviews.
Based in Boone, 12 mi away
46/100CR ScoreRanked #8 because of its Google rating and review volume: 5.0★ from 15 Google reviews.
Based in Boone, 12 mi away
42/100CR ScoreRanked #9 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Excavating contractor”.
How we ranked Ames septic service companies
We scored 9 Ames septic service companies on ten factors, weighted as shown. A business is ranked when its trade is confirmed and it has 3 or more Google reviews or a claimed profile. A business with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, not counted as zero. Scores last refreshed November 3, 2026.
Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.
| Factor | Weight | Computed from | In Ames data |
|---|---|---|---|
| Reputation | 25% | Google star rating, adjusted for how many reviews back it | Measured |
| Credentials | 15% | Active state license, bond and workers’ comp on file | Not yet collected |
| Review volume | 10% | Number of Google reviews, compared with the most-reviewed business on the list | Measured |
| Recency | 5% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 5% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | How clearly the business does this trade (its Google category and name) | Measured |
| Proximity | 5% | Based in the city scores highest, less the farther away it is | Measured |
| Claimed profile | 10% | The business has claimed its ContractorsRanked profile (free or paid earn the same) | Measured |
| Partnered | 5% | The business links to ContractorsRanked from its own website with our badge, checked periodically | Measured |
| ContractorsRanked reviews | 10% | Verified customer reviews collected by ContractorsRanked: their rating and how many there are | Measured |
Septic service companies in Ames: frequently asked questions
Who is the best septic service company in Ames?
By CR Score, the highest-ranked septic service company in Ames, IA is Roto-Rooter Sewer Drain Service with a CR Score of 62/100. It has 4.6★ from 168 Google reviews. It is open 24/7. Draintech Plumbing Drain Cleaning Hydro Jetting (#2) and River to River Onsite Septic Solutions (#3) follow. We ranked 9 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in Ames?
ContractorsRanked ranks 9 septic service companies serving Ames, IA. 5 of them are based in Ames; the rest serve it from nearby towns. Counts are as of November 2026.
Which septic service companies in Ames are open 24/7?
4 ranked septic service companies in Ames post 24/7 hours. The highest-ranked are Roto-Rooter Sewer Drain Service (#1), Draintech Plumbing Drain Cleaning Hydro Jetting (#2) and Behle Inc (#4). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Ames work on weekends?
5 of 9 ranked septic service companies post Saturday hours and 5 post Sunday hours. The highest-ranked open Saturdays are Roto-Rooter Sewer Drain Service (#1), Draintech Plumbing Drain Cleaning Hydro Jetting (#2) and Behle Inc (#4). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Ames septic service companies have?
The median Google rating among 9 rated septic service companies in Ames is 4.6★, with a median of 54 reviews. Roto-Rooter Sewer Drain Service has the most, 168 reviews, and ranks #1. We adjust ratings for review count, so a few five-star reviews cannot top the list.
How does ContractorsRanked rank septic service companies?
Each septic service company gets a 0–100 CR Score from ten published factors, led by reputation (25%), credentials (15%), review volume (10%) and trade focus (10%). A business with no Google reviews scores zero on rating, review volume and recency; other factors we cannot measure are left out. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.
Do septic service companies outside Ames count in this ranking?
Yes, if they are within 25 mi of the Ames city center, our service radius for septic service companies. Each listing shows where the business is based and how far away it is. Proximity is 5% of the CR Score, so a nearby business gets a small edge.
Can septic service companies pay to rank higher on ContractorsRanked?
No. The CR Score never reads payment status, and this ranking has 0 paid placements. Up to 3 Featured businesses may appear above the list, labelled Featured and showing their honest rank.
Update log for Ames
- November 2026: CR Scores recalculated for 9 septic service companies serving Ames.
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