62/100CR Score
Ranked #1 because of its Google rating and trade focus: 5.0★ from 835 Google reviews, listed on Google as “Septic system service”.
Best Septic Service Companies in Mukilteo, WA (2026)
117 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Mukilteo: Zoom Drain of Seattle, CR Score 62/100; 5.0★ from 835 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): All County Septic Service, posts 24/7 hours; ranked #2 of 117.
- 18
Most-reviewed: Gene Johnson Plumbing, 4,041 Google reviews at 4.8★, the most of 117 ranked; ranked #18.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
117 Mukilteo septic service companies are ranked here by CR Score, from ten published factors. 60 are open 24/7, 90 open Saturdays and 71 open Sundays, based on posted hours. The median Google rating is 4.9★ across 117 rated businesses.
Top 10 septic service companies in Mukilteo at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Zoom Drain of Seattle | 62 | 5.0★ (835) | Seattle, 17 mi away | 24/7 | Overall |
| 2 | All County Septic Service | 62 | 4.9★ (121) | Everett, 3 mi away | 24/7 | Emergencies |
| 3 | A Wesco Septic Services | 62 | 4.8★ (550) | Snohomish, 11 mi away | 24/7 | — |
| 4 | Fresh N Clean Septic | 62 | 4.9★ (663) | Woodinville, 16 mi away | 24/7 | — |
| 5 | A Wesco Septic Services | 60 | 4.7★ (229) | Snohomish, 10 mi away | 24/7 | — |
| 6 | A1 Septic Service | 60 | 5.0★ (279) | Everett, 4 mi away | 24/7 | — |
| 7 | Blackwater Services - Septic System Service | 60 | 4.9★ (132) | Marysville, 13 mi away | 24/7 | — |
| 8 | Price Busters Plumbing & Sewer | 60 | 4.9★ (781) | Lynnwood, 9 mi away | 24/7 | — |
| 9 | Pro Sewer Repair | 59 | 5.0★ (201) | Everett, 5 mi away | 24/7 | — |
| 10 | A Austin’s Septic Company LLC | 59 | 4.9★ (67) | Snohomish, 12 mi away | 24/7 | — |
The 117 best septic service companies in Mukilteo, 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 Everett, 3 mi away
62/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.9★ from 121 Google reviews, listed on Google as “Septic system service”.
Based in Snohomish, 11 mi away
62/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.8★ from 550 Google reviews, listed on Google as “Septic system service”.
Based in Woodinville, 16 mi away
62/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.9★ from 663 Google reviews, listed on Google as “Septic system service”.
Based in Snohomish, 10 mi away
60/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.7★ from 229 Google reviews, listed on Google as “Septic system service”.
Based in Everett, 4 mi away
60/100CR ScoreRanked #6 because of its Google rating and trade focus: 5.0★ from 279 Google reviews, listed on Google as “Plumber”.
Based in Marysville, 13 mi away
60/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.9★ from 132 Google reviews, listed on Google as “Septic system service”.
Based in Lynnwood, 9 mi away
60/100CR ScoreRanked #8 because of its Google rating and review volume: 4.9★ from 781 Google reviews.
Based in Everett, 5 mi away
59/100CR ScoreRanked #9 because of its Google rating and trade focus: 5.0★ from 201 Google reviews, listed on Google as “Plumber”.
Based in Snohomish, 12 mi away
59/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.9★ from 67 Google reviews, listed on Google as “Septic system service”.
Based in Arlington, 15 mi away
58/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.9★ from 493 Google reviews, listed on Google as “Septic system service”.
Based in Lynnwood, 10 mi away
58/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.9★ from 268 Google reviews, listed on Google as “HVAC contractor”.
Based in Mukilteo
58/100CR ScoreRanked #13 because of its Google rating and review volume: 4.7★ from 601 Google reviews.
Based in Seattle, 19 mi away
58/100CR ScoreRanked #14 because of its Google rating and review volume: 4.9★ from 3,532 Google reviews.
Based in Everett, 11 mi away
58/100CR ScoreRanked #15 because of its Google rating and trade focus: 5.0★ from 65 Google reviews, listed on Google as “Septic system service”.
Based in Everett, 5 mi away
58/100CR ScoreRanked #16 because of its Google rating and trade focus: 5.0★ from 90 Google reviews, listed on Google as “Plumber”.
Based in Camano, 11 mi away
57/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.8★ from 28 Google reviews, listed on Google as “Septic system service”.
Based in Seattle, 17 mi away
57/100CR ScoreRanked #18 because of its Google rating and review volume: 4.8★ from 4,041 Google reviews, the most in Mukilteo.
#19 Lakeside Septic
Based in Snohomish, 10 mi away
57/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.9★ from 85 Google reviews, listed on Google as “Septic system service”.
Based in Bothell, 12 mi away
56/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.9★ from 151 Google reviews, listed on Google as “Plumber”.
Based in Mountlake Terrace, 10 mi away
56/100CR ScoreRanked #21 because of its Google rating and review volume: 4.5★ from 436 Google reviews.
#22 Sewer Friendly
Based in Edmonds, 11 mi away
56/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.8★ from 198 Google reviews, listed on Google as “Plumber”.
Based in Seattle, 17 mi away
56/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 218 Google reviews, listed on Google as “Plumber”.
Based in Seattle, 16 mi away
56/100CR ScoreRanked #24 because of its Google rating and review volume: 4.8★ from 409 Google reviews.
#25 Septicos
Based in Everett, 3 mi away
56/100CR ScoreRanked #25 because of its Google rating and trade focus: 5.0★ from 3 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 117 ranked septic service companies here; the rest are on their profiles.
Also serving Mukilteo
20 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 |
|---|---|---|
| All Island Septic and Building | 7 mi | |
| Arnold's Septic Systems | 11 mi | |
| C Johnson Construction, Inc. | 5.0★ (1) | 22 mi |
| Cal Septic LLC | In Mukilteo | |
| Clearline Sewer Repair | 5.0★ (1) | 17 mi |
| E & R Septic & Landscaping | 5.0★ (1) | 18 mi |
| Earthwise Excavation | 5.0★ (1) | 13 mi |
| ELVROM CONSTRUCTION & EXCAVATING LLC | 5.0★ (2) | 22 mi |
| Grease Masters, Inc | 12 mi | |
| Hackney Designs | 5.0★ (1) | 12 mi |
| Lake Stevens Sewer District | 9 mi | |
| Limitless Sewer Solutions, LLC | 5.0★ (1) | 3 mi |
| Nathan Cleaver & Associates | 1.0★ (1) | 21 mi |
| Northrup Construction Inc | 5.0★ (1) | 18 mi |
| Pipe Commander Sewer And Septic | 11 mi | |
| Polymer Land Consultants | 3.5★ (2) | 21 mi |
| Pro Flow Plumbing & Sewers | 5.0★ (2) | 11 mi |
| S V Greso | 10 mi | |
| Septic Alert | 11 mi | |
| The Septic Group (Formerly Snohomish Septic) | 1.0★ (2) | 12 mi |
How we ranked Mukilteo septic service companies
We scored 117 Mukilteo 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 Mukilteo 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 Mukilteo: frequently asked questions
Who is the best septic service company in Mukilteo?
By CR Score, the highest-ranked septic service company in Mukilteo, WA is Zoom Drain of Seattle with a CR Score of 62/100. It has 5.0★ from 835 Google reviews. It is open 24/7. All County Septic Service (#2) and A Wesco Septic Services (#3) follow. We ranked 117 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in Mukilteo?
ContractorsRanked ranks 117 septic service companies serving Mukilteo, WA. 2 of them are based in Mukilteo; the rest serve it from nearby towns. Another 20 within 25 mi are listed but not ranked yet. Counts are as of November 2026.
Which septic service companies in Mukilteo are open 24/7?
60 ranked septic service companies in Mukilteo post 24/7 hours. The highest-ranked are Zoom Drain of Seattle (#1), All County Septic Service (#2) and A Wesco Septic Services (#3). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Mukilteo work on weekends?
90 of 117 ranked septic service companies post Saturday hours and 71 post Sunday hours. The highest-ranked open Saturdays are Zoom Drain of Seattle (#1), All County Septic Service (#2) and A Wesco Septic Services (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Mukilteo septic service companies have?
The median Google rating among 117 rated septic service companies in Mukilteo is 4.9★, with a median of 36 reviews. Gene Johnson Plumbing has the most, 4,041 reviews, and ranks #18. 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 Mukilteo count in this ranking?
Yes, if they are within 25 mi of the Mukilteo 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 Mukilteo
- November 2026: CR Scores recalculated for 117 septic service companies serving Mukilteo.
- November 2026: 1 duplicate listing merged.
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