63/100CR Score
Ranked #1 because of its Google rating and trade focus: 4.9★ from 496 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Best Septic Service Companies in Davenport, IA (2026)
10 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Davenport: John Wulfs Septic Tank Service LLC, CR Score 63/100; 4.9★ from 496 Google reviews; open evenings.
- 3
Best for emergencies (open 24/7): Right On Time Plumbing Sewer & Drain Cleaning - Plumbing Repairs, posts 24/7 hours; ranked #3 of 10.
- 2
Most-reviewed: B & B Drain Tech, Inc., 660 Google reviews at 4.9★, the most of 10 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
10 Davenport septic service companies are ranked here by CR Score, from ten published factors. 2 are open 24/7, 4 open Saturdays and 3 open Sundays, based on posted hours. The median Google rating is 4.6★ across 10 rated businesses.
Top 10 septic service companies in Davenport at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | John Wulfs Septic Tank Service LLC | 63 | 4.9★ (496) | Davenport | Evenings | Overall |
| 2 | B & B Drain Tech, Inc. | 62 | 4.9★ (660) | Milan, 5 mi away | — | Most reviews |
| 3 | Right On Time Plumbing Sewer & Drain Cleaning - Plumbing Repairs | 60 | 4.7★ (143) | Davenport | 24/7 | Emergencies |
| 4 | Randy's Septic Services | 57 | 4.9★ (22) | Milan, 6 mi away | Sat | — |
| 5 | Kline Sewer & Drain | 54 | 4.1★ (26) | Eldridge, 10 mi away | 24/7 | — |
| 6 | Jackson Septic Service LLC. | 54 | 4.8★ (20) | Moline, 17 mi away | — | — |
| 7 | Mr Clean Septic Sewer & Drain | 53 | 3.4★ (5) | Colona, 13 mi away | Sat · Sun | — |
| 8 | Budget Drain & Sewer Cleaning | 53 | 4.1★ (19) | Rock Island, 1 mi away | — | — |
| 9 | All Drain | 51 | 4.3★ (64) | Milan, 6 mi away | — | — |
| 10 | Superior Plumbing | 47 | 4.5★ (13) | Eldridge, 7 mi away | — | — |
The 10 best septic service companies in Davenport, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Based in Milan, 5 mi away
62/100CR ScoreRanked #2 because of its Google rating and review volume: 4.9★ from 660 Google reviews, the most in Davenport.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Davenport
60/100CR ScoreRanked #3 because of its Google rating and review volume: 4.7★ from 143 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Milan, 6 mi away
57/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.9★ from 22 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Eldridge, 10 mi away
54/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.1★ from 26 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Moline, 17 mi away
54/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.8★ from 20 Google reviews, listed on Google as “Septic system service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Colona, 13 mi away
53/100CR ScoreRanked #7 because of its Google rating and trade focus: 3.4★ from 5 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Rock Island, 1 mi away
53/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.1★ from 19 Google reviews, listed on Google as “Plumber”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
#9 All Drain
Based in Milan, 6 mi away
51/100CR ScoreRanked #9 because of its Google rating and review volume: 4.3★ from 64 Google reviews.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Eldridge, 7 mi away
47/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.5★ from 13 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Also serving Davenport
6 more septic service companies within 25 mi that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.
| Business | Google rating | Distance |
|---|---|---|
| Budget Drain & Sewer Cleaning | 4 mi | |
| Drain Away Sewer Cleaning | In Davenport | |
| Petersen Plumbing & Heating Co | 4.8★ (1,411) | In Davenport |
| Sunshine Sewer Services | In Davenport | |
| T J's Drain & Sewer | 3 mi | |
| Top To Bottom Construction | 19 mi |
How we ranked Davenport septic service companies
We scored 10 Davenport 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 Davenport 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 Davenport: frequently asked questions
Who is the best septic service company in Davenport?
By CR Score, the highest-ranked septic service company in Davenport, IA is John Wulfs Septic Tank Service LLC with a CR Score of 63/100. It has 4.9★ from 496 Google reviews. It is open evenings. B & B Drain Tech, Inc. (#2) and Right On Time Plumbing Sewer & Drain Cleaning - Plumbing Repairs (#3) follow. We ranked 10 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in Davenport?
ContractorsRanked ranks 10 septic service companies serving Davenport, IA. 2 of them are based in Davenport; the rest serve it from nearby towns. Another 6 within 25 mi are listed but not ranked yet. Counts are as of November 2026.
Which septic service companies in Davenport are open 24/7?
2 ranked septic service companies in Davenport post 24/7 hours. The highest-ranked are Right On Time Plumbing Sewer & Drain Cleaning - Plumbing Repairs (#3) and Kline Sewer & Drain (#5). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Davenport work on weekends?
4 of 10 ranked septic service companies post Saturday hours and 3 post Sunday hours. The highest-ranked open Saturdays are Right On Time Plumbing Sewer & Drain Cleaning - Plumbing Repairs (#3), Randy's Septic Services (#4) and Kline Sewer & Drain (#5). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Davenport septic service companies have?
The median Google rating among 10 rated septic service companies in Davenport is 4.6★, with a median of 24 reviews. B & B Drain Tech, Inc. has the most, 660 reviews, and ranks #2. 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 Davenport count in this ranking?
Yes, if they are within 25 mi of the Davenport 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 Davenport
- November 2026: CR Scores recalculated for 10 septic service companies serving Davenport.
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