65/100CR Score
Ranked #1 because of its Google rating and trade focus: 4.8★ from 2,933 Google reviews, listed on Google as “Septic system service”.
Best Septic Service Companies in Kent, WA (2026)
159 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Kent: A Advanced Septic & Construction Services, CR Score 65/100; 4.8★ from 2,933 Google reviews; open 24/7.
- 3
Best for emergencies (open 24/7): Sterling Septic & Plumbing LLC, posts 24/7 hours; ranked #3 of 159.
- 6
Most-reviewed: FloHawks Plumbing and Septic, 5,286 Google reviews at 4.9★, the most of 159 ranked; ranked #6.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
159 Kent septic service companies are ranked here by CR Score, from ten published factors. 69 are open 24/7, 113 open Saturdays and 96 open Sundays, based on posted hours. The median Google rating is 4.9★ across 159 rated businesses.
Top 10 septic service companies in Kent at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | A Advanced Septic & Construction Services | 65 | 4.8★ (2,933) | Auburn, 6 mi away | 24/7 | Overall |
| 2 | Puget Sound Septic | 62 | 5.0★ (413) | Maple Valley, 8 mi away | Sat · Sun · Evenings | — |
| 3 | Sterling Septic & Plumbing LLC | 60 | 4.9★ (503) | Puyallup, 17 mi away | 24/7 | Emergencies |
| 4 | Zoom Drain of Seattle | 60 | 5.0★ (835) | Seattle, 23 mi away | 24/7 | — |
| 5 | Northwest Septic & Pumping | 60 | 4.6★ (169) | Kent | Sat · Sun · Evenings | — |
| 6 | FloHawks Plumbing and Septic | 60 | 4.9★ (5,286) | Puyallup, 19 mi away | 24/7 | Most reviews |
| 7 | Raptor Plumbing & Sewer | 60 | 5.0★ (145) | Kent | 24/7 | — |
| 8 | Pike Plumbing & Sewer | 59 | 4.9★ (540) | Kent | Sat · Sun · Evenings | — |
| 9 | Drain-Pro Inc. - Washington | 59 | 4.7★ (218) | Puyallup, 13 mi away | 24/7 | — |
| 10 | Fox Plumbing, Heating & Cooling (now a Gene Johnson company) | 59 | 4.8★ (2,264) | SeaTac, 5 mi away | 24/7 | — |
The 159 best septic service companies in Kent, 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 Maple Valley, 8 mi away
62/100CR ScoreRanked #2 because of its Google rating and trade focus: 5.0★ from 413 Google reviews, listed on Google as “Septic system service”.
Based in Puyallup, 17 mi away
60/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.9★ from 503 Google reviews, listed on Google as “Septic system service”.
Based in Seattle, 23 mi away
60/100CR ScoreRanked #4 because of its Google rating and trade focus: 5.0★ from 835 Google reviews, listed on Google as “Septic system service”.
Based in Kent
60/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.6★ from 169 Google reviews, listed on Google as “Septic system service”.
Based in Puyallup, 19 mi away
60/100CR ScoreRanked #6 because of its Google rating and review volume: 4.9★ from 5,286 Google reviews, the most in Kent.
Based in Kent
60/100CR ScoreRanked #7 because of its Google rating and trade focus: 5.0★ from 145 Google reviews, listed on Google as “Plumber”.
Based in Kent
59/100CR ScoreRanked #8 because of its Google rating and review volume: 4.9★ from 540 Google reviews.
Based in Puyallup, 13 mi away
59/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.7★ from 218 Google reviews, listed on Google as “Septic system service”.
Based in SeaTac, 5 mi away
59/100CR ScoreRanked #10 because of its Google rating and review volume: 4.8★ from 2,264 Google reviews.
#11 Zak Septic LLC
Based in South Hill, 5 mi away
59/100CR ScoreRanked #11 because of its Google rating and trade focus: 5.0★ from 21 Google reviews, listed on Google as “Septic system service”.
Based in Kent
59/100CR ScoreRanked #12 because of its Google rating and review volume: 4.7★ from 1,362 Google reviews.
Based in Seattle, 9 mi away
58/100CR ScoreRanked #13 because of its Google rating and review volume: 4.8★ from 2,646 Google reviews.
Based in Pacific, 8 mi away
58/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.8★ from 337 Google reviews, listed on Google as “HVAC contractor”.
Based in Kent
58/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.9★ from 144 Google reviews, listed on Google as “Septic system service”.
Based in Federal Way, 8 mi away
57/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.9★ from 181 Google reviews, listed on Google as “Plumber”.
Based in Tukwila, 8 mi away
57/100CR ScoreRanked #17 because of its Google rating and review volume: 4.8★ from 579 Google reviews.
Based in Kent
57/100CR ScoreRanked #18 because of its Google rating and review volume: 4.9★ from 208 Google reviews.
Based in Pacific, 9 mi away
57/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.8★ from 230 Google reviews, listed on Google as “Plumber”.
Based in Puyallup, 16 mi away
57/100CR ScoreRanked #20 because of its Google rating and trade focus: 5.0★ from 41 Google reviews, listed on Google as “Septic system service”.
Based in Seattle, 21 mi away
57/100CR ScoreRanked #21 because of its Google rating and review volume: 4.9★ from 3,532 Google reviews.
Based in Bellevue, 16 mi away
57/100CR ScoreRanked #22 because of its Google rating and trade focus: 5.0★ from 316 Google reviews, listed on Google as “Plumber”.
Based in Des Moines, 5 mi away
57/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.9★ from 76 Google reviews, listed on Google as “Plumber”.
Based in Auburn, 5 mi away
57/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.8★ from 280 Google reviews, listed on Google as “Plumber”.
Based in Auburn, 7 mi away
56/100CR ScoreRanked #25 because of its Google rating and trade focus: 5.0★ from 7 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 159 ranked septic service companies here; the rest are on their profiles.
Also serving Kent
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 |
|---|---|---|
| Action On-Site Services Inc | 5.0★ (1) | 22 mi |
| Al & Art's Septic Services | 6 mi | |
| Beacon Plumbing, Heating, Electrical & Mechanical Inc - Auburn | 6 mi | |
| Benson Hill Septic Tank Services | 3.0★ (2) | 6 mi |
| CLS Septics & Electrical | 5.0★ (1) | In Kent |
| Cole Septic | 5.0★ (1) | 16 mi |
| DELTA ROOTER LLC | 9 mi | |
| Evergreen Sanitation | 1.0★ (1) | 7 mi |
| Evergreen Sewer | 5.0★ (1) | 9 mi |
| Final Vision Inc | 5.0★ (2) | 22 mi |
| Gravity Sewer Repair | 5 mi | |
| I Need A Plumber Now and Sewer Services | 5.0★ (2) | 8 mi |
| Insight Septic Design | 5.0★ (2) | 6 mi |
| Milton Construction Inc | 5 mi | |
| New Horizon Sewer Services | 3.0★ (2) | 15 mi |
| Raven Rooter Sewer & Drain Cleaning Tacoma | 4.0★ (1) | 13 mi |
| Re-New Excavation and Restoration LLC | 5.0★ (2) | 24 mi |
| Septic Designs By Pete Cooke | 5.0★ (2) | 23 mi |
| Sorrell Septic Design LLC | 5.0★ (2) | 12 mi |
| Wadleigh Water and Sewer | 5.0★ (2) | 19 mi |
How we ranked Kent septic service companies
We scored 159 Kent 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 Kent 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 Kent: frequently asked questions
Who is the best septic service company in Kent?
By CR Score, the highest-ranked septic service company in Kent, WA is A Advanced Septic & Construction Services with a CR Score of 65/100. It has 4.8★ from 2,933 Google reviews. It is open 24/7. Puget Sound Septic (#2) and Sterling Septic & Plumbing LLC (#3) follow. We ranked 159 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in Kent?
ContractorsRanked ranks 159 septic service companies serving Kent, WA. 9 of them are based in Kent; 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 Kent are open 24/7?
69 ranked septic service companies in Kent post 24/7 hours. The highest-ranked are A Advanced Septic & Construction Services (#1), Sterling Septic & Plumbing LLC (#3) and Zoom Drain of Seattle (#4). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Kent work on weekends?
113 of 159 ranked septic service companies post Saturday hours and 96 post Sunday hours. The highest-ranked open Saturdays are A Advanced Septic & Construction Services (#1), Puget Sound Septic (#2) and Sterling Septic & Plumbing LLC (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Kent septic service companies have?
The median Google rating among 159 rated septic service companies in Kent is 4.9★, with a median of 33 reviews. FloHawks Plumbing and Septic has the most, 5,286 reviews, and ranks #6. 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 Kent count in this ranking?
Yes, if they are within 25 mi of the Kent 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 Kent
- November 2026: CR Scores recalculated for 159 septic service companies serving Kent.
More septic service companies and Kent pages
Septic service companies near Kent
- Septic service companies in East Hill-Meridian, WA165 ranked
- Septic service companies in Lakeland North, WA149 ranked
- Septic service companies in Des Moines, WA159 ranked
- Septic service companies in Lea Hill, WA141 ranked
- Septic service companies in Auburn, WA135 ranked
- Septic service companies in SeaTac, WA167 ranked
- Septic service companies in Federal Way, WA142 ranked
- Septic service companies in Covington, WA153 ranked
- Septic service companies in Fairwood, WA162 ranked
- Septic service companies in Tukwila, WA168 ranked
Other trades in Kent
- Roofers in Kent1152 ranked
- Plumbers in Kent636 ranked
- Electricians in Kent566 ranked
- HVAC contractors in Kent541 ranked
- General contractors in Kent1489 ranked
- Painters in Kent386 ranked
- Landscapers in Kent324 ranked
- Handymen in Kent145 ranked
- Kitchen remodelers in Kent719 ranked
- Bathroom remodelers in Kent718 ranked
- Flooring contractors in Kent477 ranked
- Tile installers in Kent125 ranked
- Drywall contractors in Kent34 ranked
- Concrete contractors in Kent338 ranked
- Fence contractors in Kent323 ranked
- Deck builders in Kent452 ranked
- Siding contractors in Kent370 ranked
- Window installers in Kent393 ranked
- Gutter installers in Kent414 ranked
- Insulation contractors in Kent177 ranked
- Solar installers in Kent74 ranked
- Garage door repair companies in Kent255 ranked
- Foundation repair companies in Kent131 ranked
- Tree services in Kent296 ranked
- Masonry contractors in Kent196 ranked
- Water damage restoration companies in Kent494 ranked
- Home builders in Kent624 ranked
- Demolition contractors in Kent132 ranked
- Window cleaners in Kent120 ranked
- Pressure washing companies in Kent187 ranked
- Pest control companies in Kent179 ranked
- Paving contractors in Kent201 ranked
- Auto glass repair shops in Kent192 ranked
- Excavating contractors in Kent191 ranked
- Pool builders in Kent49 ranked
- All contractors in Kent