63/100CR Score
Ranked #1 because of its Google rating and trade focus: 4.9★ from 663 Google reviews, listed on Google as “Septic system service”.
Best Septic Service Companies in Monroe, WA (2026)
122 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Monroe: Fresh N Clean Septic, CR Score 63/100; 4.9★ from 663 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): A Wesco Septic Services, posts 24/7 hours; ranked #2 of 122.
- 27
Most-reviewed: Gene Johnson Plumbing, 4,041 Google reviews at 4.8★, the most of 122 ranked; ranked #27.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
122 Monroe septic service companies are ranked here by CR Score, from ten published factors. 69 are open 24/7, 99 open Saturdays and 81 open Sundays, based on posted hours. The median Google rating is 4.9★ across 122 rated businesses.
Top 10 septic service companies in Monroe at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Fresh N Clean Septic | 63 | 4.9★ (663) | Woodinville, 9 mi away | 24/7 | Overall |
| 2 | A Wesco Septic Services | 63 | 4.8★ (550) | Snohomish, 7 mi away | 24/7 | Emergencies |
| 3 | Zoom Drain of Seattle | 61 | 5.0★ (835) | Seattle, 21 mi away | 24/7 | — |
| 4 | A Wesco Septic Services | 61 | 4.7★ (229) | Snohomish, 7 mi away | 24/7 | — |
| 5 | Sky Valley Pumper, Inc | 60 | 4.9★ (66) | Monroe | Sat · Sun | — |
| 6 | A Austin’s Septic Company LLC | 60 | 4.9★ (67) | Snohomish, 8 mi away | 24/7 | — |
| 7 | All County Septic Service | 59 | 4.9★ (121) | Everett, 14 mi away | 24/7 | — |
| 8 | Above Grade Septic | 59 | 5.0★ (65) | Everett, 7 mi away | Sat · Sun | — |
| 9 | SOS Septic Pumping | 59 | 5.0★ (26) | Everett, 7 mi away | 24/7 | — |
| 10 | A1 Septic Service | 58 | 4.9★ (121) | Marysville, 18 mi away | 24/7 | — |
The 122 best septic service companies in Monroe, 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 Snohomish, 7 mi away
63/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.8★ from 550 Google reviews, listed on Google as “Septic system service”.
Based in Seattle, 21 mi away
61/100CR ScoreRanked #3 because of its Google rating and trade focus: 5.0★ from 835 Google reviews, listed on Google as “Septic system service”.
Based in Snohomish, 7 mi away
61/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.7★ from 229 Google reviews, listed on Google as “Septic system service”.
Based in Monroe
60/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.9★ from 66 Google reviews, listed on Google as “Septic system service”.
Based in Snohomish, 8 mi away
60/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.9★ from 67 Google reviews, listed on Google as “Septic system service”.
Based in Everett, 14 mi away
59/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.9★ from 121 Google reviews, listed on Google as “Septic system service”.
Based in Everett, 7 mi away
59/100CR ScoreRanked #8 because of its Google rating and trade focus: 5.0★ from 65 Google reviews, listed on Google as “Septic system service”.
Based in Everett, 7 mi away
59/100CR ScoreRanked #9 because of its Google rating and trade focus: 5.0★ from 26 Google reviews, listed on Google as “Septic system service”.
Based in Marysville, 18 mi away
58/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.9★ from 121 Google reviews, listed on Google as “Septic system service”.
Based in Lynnwood, 17 mi away
58/100CR ScoreRanked #11 because of its Google rating and review volume: 4.9★ from 781 Google reviews.
Based in Everett, 13 mi away
58/100CR ScoreRanked #12 because of its Google rating and trade focus: 5.0★ from 279 Google reviews, listed on Google as “Plumber”.
Based in Woodinville, 8 mi away
57/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.8★ from 17 Google reviews, listed on Google as “Septic system service”.
Based in Marysville, 22 mi away
57/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.9★ from 132 Google reviews, listed on Google as “Septic system service”.
Based in Bellevue, 8 mi away
57/100CR ScoreRanked #15 because of its Google rating and review volume: 4.6★ from 393 Google reviews.
#16 Lakeside Septic
Based in Snohomish, 7 mi away
57/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.9★ from 85 Google reviews, listed on Google as “Septic system service”.
Based in Lynnwood, 13 mi away
57/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.9★ from 268 Google reviews, listed on Google as “HVAC contractor”.
Based in Arlington, 20 mi away
57/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.9★ from 493 Google reviews, listed on Google as “Septic system service”.
#19 Pro Sewer Repair
Based in Everett, 14 mi away
57/100CR ScoreRanked #19 because of its Google rating and trade focus: 5.0★ from 201 Google reviews, listed on Google as “Plumber”.
Based in Seattle, 23 mi away
57/100CR ScoreRanked #20 because of its Google rating and review volume: 4.9★ from 3,532 Google reviews.
Based in Snohomish, 7 mi away
57/100CR ScoreRanked #21 because of its Google rating and trade focus: 5.0★ from 8 Google reviews, listed on Google as “Septic system service”.
Based in Bellevue, 17 mi away
57/100CR ScoreRanked #22 because of its Google rating and trade focus: 5.0★ from 310 Google reviews, listed on Google as “Plumber”.
Based in Bothell, 11 mi away
56/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.9★ from 151 Google reviews, listed on Google as “Plumber”.
Based in Everett, 11 mi away
56/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.9★ from 124 Google reviews, listed on Google as “Plumber”.
Based in Camano, 14 mi away
56/100CR ScoreRanked #25 because of its Google rating and trade focus: 5.0★ from 45 Google reviews, listed on Google as “Septic system service”.
Septic service companies ranked #26 to #50
#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile. We publish the top 50 of 122 ranked septic service companies here; the rest are on their profiles.
Also serving Monroe
18 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 |
|---|---|---|
| 47 Pro Septic Co | 18 mi | |
| All Island Septic and Building | 24 mi | |
| Cal Septic LLC | 20 mi | |
| Centennial Septic Service | 22 mi | |
| Clearline Sewer Repair | 5.0★ (1) | In Monroe |
| Earthwise Excavation | 5.0★ (1) | 7 mi |
| Grease Masters, Inc | 8 mi | |
| Hackney Designs | 5.0★ (1) | 12 mi |
| Lake Stevens Sewer District | 11 mi | |
| Limitless Sewer Solutions, LLC | 5.0★ (1) | 14 mi |
| Northrup Construction Inc | 5.0★ (1) | In Monroe |
| Pipe Commander Sewer And Septic | 6 mi | |
| Pro Flow Plumbing & Sewers | 5.0★ (2) | 6 mi |
| S V Greso | 7 mi | |
| Seattle Septic Pros | 24 mi | |
| Sorrell Septic Design LLC | 5.0★ (2) | 24 mi |
| The Septic Group (Formerly Snohomish Septic) | 1.0★ (2) | 11 mi |
| Wadleigh Water and Sewer | 5.0★ (2) | 24 mi |
How we ranked Monroe septic service companies
We scored 122 Monroe 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 Monroe 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 Monroe: frequently asked questions
Who is the best septic service company in Monroe?
By CR Score, the highest-ranked septic service company in Monroe, WA is Fresh N Clean Septic with a CR Score of 63/100. It has 4.9★ from 663 Google reviews. It is open 24/7. A Wesco Septic Services (#2) and Zoom Drain of Seattle (#3) follow. We ranked 122 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in Monroe?
ContractorsRanked ranks 122 septic service companies serving Monroe, WA. 2 of them are based in Monroe; the rest serve it from nearby towns. Another 18 within 25 mi are listed but not ranked yet. Counts are as of November 2026.
Which septic service companies in Monroe are open 24/7?
69 ranked septic service companies in Monroe post 24/7 hours. The highest-ranked are Fresh N Clean Septic (#1), A Wesco Septic Services (#2) and Zoom Drain of Seattle (#3). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Monroe work on weekends?
99 of 122 ranked septic service companies post Saturday hours and 81 post Sunday hours. The highest-ranked open Saturdays are Fresh N Clean Septic (#1), A Wesco Septic Services (#2) and Zoom Drain of Seattle (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Monroe septic service companies have?
The median Google rating among 122 rated septic service companies in Monroe is 4.9★, with a median of 53 reviews. Gene Johnson Plumbing has the most, 4,041 reviews, and ranks #27. 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 Monroe count in this ranking?
Yes, if they are within 25 mi of the Monroe 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 Monroe
- November 2026: CR Scores recalculated for 122 septic service companies serving Monroe.
- November 2026: 1 duplicate listing merged.
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