56/100CR Score
Ranked #1 because of its Google rating and trade focus: 4.9★ from 64 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 Oroville, CA (2026)
19 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Oroville: Tom's Septic, CR Score 56/100; 4.9★ from 64 Google reviews.
- 2
Best for emergencies (open 24/7): Earl's Performance Plumbing, posts 24/7 hours; ranked #2 of 19.
- 2
Most-reviewed: Earl's Performance Plumbing, 4,610 Google reviews at 4.8★, the most of 19 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
19 Oroville septic service companies are ranked here by CR Score, from ten published factors. 3 are open 24/7, 8 open Saturdays and 4 open Sundays, based on posted hours. The median Google rating is 4.9★ across 19 rated businesses.
Top 10 septic service companies in Oroville at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Tom's Septic | 56 | 4.9★ (64) | Oroville | — | Overall |
| 2 | Earl's Performance Plumbing | 56 | 4.8★ (4,610) | Chico, 20 mi away | 24/7 | Emergencies, Most reviews |
| 3 | Oroville Products | 53 | 4.0★ (20) | Oroville | — | — |
| 4 | Chico Septic & Sewer- Septic Pumping, Sewer Inspections, Septic and Sewer Repairs and Installs | 52 | 4.9★ (262) | Chico, 25 mi away | Sat · Sun | — |
| 5 | Paradise Sanitation | 52 | 4.9★ (15) | Chico, 17 mi away | Sat | — |
| 6 | Attaboy Plumbing, Drains, & Water Heater Specialists | 51 | 4.5★ (763) | Chico, 24 mi away | 24/7 | — |
| 7 | Bailey Septic and Excavation LLC | 51 | 4.9★ (17) | Durham, 20 mi away | 24/7 | — |
| 8 | Dobrich & Sons Septic | 50 | 5.0★ (16) | Magalia, 24 mi away | — | — |
| 9 | Magneson Tractor Service Inc | 50 | 4.6★ (10) | Durham, 12 mi away | — | — |
| 10 | Dobrich Septic | 49 | 3.9★ (14) | Magalia, 21 mi away | — | — |
The 19 best septic service companies in Oroville, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Based in Chico, 20 mi away
56/100CR ScoreRanked #2 because of its Google rating and review volume: 4.8★ from 4,610 Google reviews, the most in Oroville.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Oroville
53/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.0★ from 20 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Chico, 25 mi away
52/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.9★ from 262 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Chico, 17 mi away
52/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.9★ from 15 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Chico, 24 mi away
51/100CR ScoreRanked #6 because of its Google rating and review volume: 4.5★ from 763 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Durham, 20 mi away
51/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.9★ from 17 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Magalia, 24 mi away
50/100CR ScoreRanked #8 because of its Google rating and trade focus: 5.0★ from 16 Google reviews, listed on Google as “Septic system service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Durham, 12 mi away
50/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.6★ from 10 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#10 Dobrich Septic
Based in Magalia, 21 mi away
49/100CR ScoreRanked #10 because of its Google rating and trade focus: 3.9★ from 14 Google reviews, listed on Google as “Septic system service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Chico, 17 mi away
49/100CR ScoreRanked #11 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Chico, 19 mi away
48/100CR ScoreRanked #12 because of its Google rating and trade focus: 5.0★ from 8 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Paradise, 19 mi away
48/100CR ScoreRanked #13 because of its Google rating and trade focus: 5.0★ from 24 Google reviews, listed on Google as “Plumber”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Oroville
48/100CR ScoreRanked #14 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “General contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Gridley, 13 mi away
47/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.7★ from 6 Google reviews, listed on Google as “Plumber”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
#16 Thrifty Rooter
Based in Chico, 20 mi away
46/100CR ScoreRanked #16 because of its Google rating and review volume: 4.8★ from 124 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
#17 Payless Septic
Based in Chico, 20 mi away
45/100CR ScoreRanked #17 because of its Google rating and trade focus: 3.3★ from 7 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#18 Cox Excavating
Based in South Oroville, 15 mi away
44/100CR ScoreRanked #18 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “Demolition contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Chico, 19 mi away
43/100CR ScoreRanked #19 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Construction company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Also serving Oroville
9 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 |
|---|---|---|
| Affordable Plumbing Sewer | 5.0★ (1) | 20 mi |
| Chamberlain Backhoe & Septic | 5.0★ (1) | 22 mi |
| Gary Pryde Construction | 15 mi | |
| Jason Slack Construction | In Oroville | |
| M Roethler General Engineering | 17 mi | |
| Paradise Sewer Project | 17 mi | |
| Payless Plumbing | 5.0★ (2) | 20 mi |
| Relief Services | 25 mi | |
| Stan's Septic CSLB#1025498 | 3.0★ (1) | 23 mi |
How we ranked Oroville septic service companies
We scored 19 Oroville 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 Oroville 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 Oroville: frequently asked questions
Who is the best septic service company in Oroville?
By CR Score, the highest-ranked septic service company in Oroville, CA is Tom's Septic with a CR Score of 56/100. It has 4.9★ from 64 Google reviews. Earl's Performance Plumbing (#2) and Oroville Products (#3) follow. We ranked 19 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in Oroville?
ContractorsRanked ranks 19 septic service companies serving Oroville, CA. 3 of them are based in Oroville; the rest serve it from nearby towns. Another 9 within 25 mi are listed but not ranked yet. Counts are as of November 2026.
Which septic service companies in Oroville are open 24/7?
3 ranked septic service companies in Oroville post 24/7 hours. The highest-ranked are Earl's Performance Plumbing (#2), Attaboy Plumbing, Drains, & Water Heater Specialists (#6) and Bailey Septic and Excavation LLC (#7). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Oroville work on weekends?
8 of 19 ranked septic service companies post Saturday hours and 4 post Sunday hours. The highest-ranked open Saturdays are Earl's Performance Plumbing (#2), Chico Septic & Sewer- Septic Pumping, Sewer Inspections, Septic and Sewer Repairs and Installs (#4) and Paradise Sanitation (#5). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Oroville septic service companies have?
The median Google rating among 19 rated septic service companies in Oroville is 4.9★, with a median of 15 reviews. Earl's Performance Plumbing has the most, 4,610 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 Oroville count in this ranking?
Yes, if they are within 25 mi of the Oroville 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 Oroville
- November 2026: CR Scores recalculated for 19 septic service companies serving Oroville.
More septic service companies and Oroville pages
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