66/100CR 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 Federal Way, WA (2026)
142 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Federal Way: A Advanced Septic & Construction Services, CR Score 66/100; 4.8★ from 2,933 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Sterling Septic & Plumbing LLC, posts 24/7 hours; ranked #2 of 142.
- 3
Most-reviewed: FloHawks Plumbing and Septic, 5,286 Google reviews at 4.9★, the most of 142 ranked; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
142 Federal Way septic service companies are ranked here by CR Score, from ten published factors. 58 are open 24/7, 96 open Saturdays and 80 open Sundays, based on posted hours. The median Google rating is 4.8★ across 142 rated businesses.
Top 10 septic service companies in Federal Way at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | A Advanced Septic & Construction Services | 66 | 4.8★ (2,933) | Auburn, 3 mi away | 24/7 | Overall |
| 2 | Sterling Septic & Plumbing LLC | 62 | 4.9★ (503) | Puyallup, 12 mi away | 24/7 | Emergencies |
| 3 | FloHawks Plumbing and Septic | 61 | 4.9★ (5,286) | Puyallup, 15 mi away | 24/7 | Most reviews |
| 4 | Puget Sound Septic | 60 | 5.0★ (413) | Maple Valley, 12 mi away | Sat · Sun · Evenings | — |
| 5 | Drain-Pro Inc. - Washington | 60 | 4.7★ (218) | Puyallup, 10 mi away | 24/7 | — |
| 6 | Steady Flow Sewer & Drain Co | 59 | 4.9★ (181) | Federal Way | 24/7 | — |
| 7 | 2 Sons Plumbing, Sewer, Heating & Air | 59 | 4.8★ (337) | Pacific, 5 mi away | 24/7 | — |
| 8 | Zak Septic LLC | 58 | 5.0★ (21) | South Hill, 6 mi away | 24/7 | — |
| 9 | Fox Plumbing, Heating & Cooling (now a Gene Johnson company) | 58 | 4.8★ (2,264) | SeaTac, 8 mi away | 24/7 | — |
| 10 | Raptor Plumbing & Sewer | 58 | 5.0★ (145) | Kent, 5 mi away | 24/7 | — |
The 142 best septic service companies in Federal Way, 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 Puyallup, 12 mi away
62/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.9★ from 503 Google reviews, listed on Google as “Septic system service”.
Based in Puyallup, 15 mi away
61/100CR ScoreRanked #3 because of its Google rating and review volume: 4.9★ from 5,286 Google reviews, the most in Federal Way.
Based in Maple Valley, 12 mi away
60/100CR ScoreRanked #4 because of its Google rating and trade focus: 5.0★ from 413 Google reviews, listed on Google as “Septic system service”.
Based in Puyallup, 10 mi away
60/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.7★ from 218 Google reviews, listed on Google as “Septic system service”.
Based in Federal Way
59/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.9★ from 181 Google reviews, listed on Google as “Plumber”.
Based in Pacific, 5 mi away
59/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.8★ from 337 Google reviews, listed on Google as “HVAC contractor”.
Based in South Hill, 6 mi away
58/100CR ScoreRanked #8 because of its Google rating and trade focus: 5.0★ from 21 Google reviews, listed on Google as “Septic system service”.
Based in SeaTac, 8 mi away
58/100CR ScoreRanked #9 because of its Google rating and review volume: 4.8★ from 2,264 Google reviews.
Based in Kent, 5 mi away
58/100CR ScoreRanked #10 because of its Google rating and trade focus: 5.0★ from 145 Google reviews, listed on Google as “Plumber”.
Based in Kent, 7 mi away
58/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.6★ from 169 Google reviews, listed on Google as “Septic system service”.
Based in Puyallup, 12 mi away
58/100CR ScoreRanked #12 because of its Google rating and trade focus: 5.0★ from 41 Google reviews, listed on Google as “Septic system service”.
Based in Kent, 6 mi away
58/100CR ScoreRanked #13 because of its Google rating and review volume: 4.9★ from 540 Google reviews.
Based in Pacific, 5 mi away
58/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.8★ from 230 Google reviews, listed on Google as “Plumber”.
Based in Tacoma, 8 mi away
58/100CR ScoreRanked #15 because of its Google rating and review volume: 4.8★ from 1,670 Google reviews.
Based in Seattle, 12 mi away
57/100CR ScoreRanked #16 because of its Google rating and review volume: 4.8★ from 2,646 Google reviews.
Based in Auburn, 6 mi away
57/100CR ScoreRanked #17 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Septic system service”.
Based in Kent, 9 mi away
57/100CR ScoreRanked #18 because of its Google rating and review volume: 4.7★ from 1,362 Google reviews.
Based in Auburn, 6 mi away
56/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.8★ from 280 Google reviews, listed on Google as “Plumber”.
Based in Spanaway, 18 mi away
56/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.8★ from 155 Google reviews, listed on Google as “Septic system service”.
Based in Des Moines, 7 mi away
56/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.9★ from 76 Google reviews, listed on Google as “Plumber”.
Based in Seattle, 24 mi away
56/100CR ScoreRanked #22 because of its Google rating and review volume: 4.9★ from 3,532 Google reviews.
Based in Tukwila, 11 mi away
56/100CR ScoreRanked #23 because of its Google rating and review volume: 4.8★ from 579 Google reviews.
Based in Tacoma, 13 mi away
56/100CR ScoreRanked #24 because of its Google rating and review volume: 4.8★ from 1,108 Google reviews.
Based in Kent, 5 mi away
56/100CR ScoreRanked #25 because of its Google rating and review volume: 4.9★ from 208 Google reviews.
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 142 ranked septic service companies here; the rest are on their profiles.
Also serving Federal Way
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) | 21 mi |
| Al & Art's Septic Services | In Federal Way | |
| Assured Septic LLC | 6 mi | |
| Beacon Plumbing, Heating, Electrical & Mechanical Inc - Auburn | 4 mi | |
| Benson Hill Septic Tank Services | 3.0★ (2) | In Federal Way |
| CLS Septics & Electrical | 5.0★ (1) | 16 mi |
| Cole Septic | 5.0★ (1) | 17 mi |
| Evergreen Sanitation | 1.0★ (1) | 12 mi |
| Evergreen Sewer | 5.0★ (1) | 12 mi |
| Final Vision Inc | 5.0★ (2) | 20 mi |
| I Need A Plumber Now and Sewer Services | 5.0★ (2) | 14 mi |
| Insight Septic Design | 5.0★ (2) | 12 mi |
| New Horizon Sewer Services | 3.0★ (2) | 10 mi |
| Pierce County Septic | 6 mi | |
| Raven Rooter Sewer & Drain Cleaning Tacoma | 4.0★ (1) | 8 mi |
| Re-New Excavation and Restoration LLC | 5.0★ (2) | 19 mi |
| Septic Designs By Pete Cooke | 5.0★ (2) | 19 mi |
| Septic-pros | 5 mi | |
| Sorrell Septic Design LLC | 5.0★ (2) | 18 mi |
| Wadleigh Water and Sewer | 5.0★ (2) | 24 mi |
How we ranked Federal Way septic service companies
We scored 142 Federal Way 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 Federal Way 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 Federal Way: frequently asked questions
Who is the best septic service company in Federal Way?
By CR Score, the highest-ranked septic service company in Federal Way, WA is A Advanced Septic & Construction Services with a CR Score of 66/100. It has 4.8★ from 2,933 Google reviews. It is open 24/7. Sterling Septic & Plumbing LLC (#2) and FloHawks Plumbing and Septic (#3) follow. We ranked 142 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in Federal Way?
ContractorsRanked ranks 142 septic service companies serving Federal Way, WA. 1 of them is based in Federal Way; 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 Federal Way are open 24/7?
58 ranked septic service companies in Federal Way post 24/7 hours. The highest-ranked are A Advanced Septic & Construction Services (#1), Sterling Septic & Plumbing LLC (#2) and FloHawks Plumbing and Septic (#3). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Federal Way work on weekends?
96 of 142 ranked septic service companies post Saturday hours and 80 post Sunday hours. The highest-ranked open Saturdays are A Advanced Septic & Construction Services (#1), Sterling Septic & Plumbing LLC (#2) and FloHawks Plumbing and Septic (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Federal Way septic service companies have?
The median Google rating among 142 rated septic service companies in Federal Way is 4.8★, with a median of 32 reviews. FloHawks Plumbing and Septic has the most, 5,286 reviews, and ranks #3. 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 Federal Way count in this ranking?
Yes, if they are within 25 mi of the Federal Way 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 Federal Way
- November 2026: CR Scores recalculated for 142 septic service companies serving Federal Way.
More septic service companies and Federal Way pages
Septic service companies near Federal Way
- Septic service companies in Lakeland North, WA149 ranked
- Septic service companies in Lakeland South, WA130 ranked
- Septic service companies in Auburn, WA135 ranked
- Septic service companies in Kent, WA159 ranked
- Septic service companies in Des Moines, WA159 ranked
- Septic service companies in Lea Hill, WA141 ranked
- Septic service companies in Tacoma, WA128 ranked
- Septic service companies in SeaTac, WA167 ranked
- Septic service companies in East Hill-Meridian, WA165 ranked
- Septic service companies in Covington, WA153 ranked
Other trades in Federal Way
- Roofers in Federal Way1127 ranked
- Plumbers in Federal Way576 ranked
- Electricians in Federal Way523 ranked
- HVAC contractors in Federal Way487 ranked
- General contractors in Federal Way1340 ranked
- Painters in Federal Way402 ranked
- Landscapers in Federal Way363 ranked
- Handymen in Federal Way143 ranked
- Kitchen remodelers in Federal Way614 ranked
- Bathroom remodelers in Federal Way615 ranked
- Flooring contractors in Federal Way416 ranked
- Tile installers in Federal Way122 ranked
- Drywall contractors in Federal Way39 ranked
- Concrete contractors in Federal Way312 ranked
- Fence contractors in Federal Way294 ranked
- Deck builders in Federal Way401 ranked
- Siding contractors in Federal Way358 ranked
- Window installers in Federal Way384 ranked
- Gutter installers in Federal Way367 ranked
- Insulation contractors in Federal Way162 ranked
- Solar installers in Federal Way73 ranked
- Garage door repair companies in Federal Way226 ranked
- Foundation repair companies in Federal Way128 ranked
- Tree services in Federal Way267 ranked
- Masonry contractors in Federal Way172 ranked
- Water damage restoration companies in Federal Way471 ranked
- Home builders in Federal Way609 ranked
- Demolition contractors in Federal Way124 ranked
- Window cleaners in Federal Way129 ranked
- Pressure washing companies in Federal Way199 ranked
- Pest control companies in Federal Way162 ranked
- Paving contractors in Federal Way185 ranked
- Auto glass repair shops in Federal Way172 ranked
- Excavating contractors in Federal Way180 ranked
- Pool builders in Federal Way45 ranked
- All contractors in Federal Way