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Best Septic Service Companies in Centralia, WA (2026)

23 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in Centralia: Howdys Doody Service, Inc., CR Score 58/100; 4.9★ from 1,183 Google reviews.

  2. 5

    Best for emergencies (open 24/7): Mr. Rooter Plumbing of Olympia, posts 24/7 hours; ranked #5 of 23.

  3. 4

    Most-reviewed: Olympic Plumbing Technology, 1,814 Google reviews at 4.9★, the most of 23 ranked; ranked #4.

Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank

23 Centralia septic service companies are ranked here by CR Score, from ten published factors. 1 is open 24/7, 5 open Saturdays and 3 open Sundays, based on posted hours. The median Google rating is 4.6★ across 23 rated businesses.

Top 10 septic service companies in Centralia at a glance

Top 10 septic service companies in Centralia at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Howdys Doody Service, Inc.584.9★ (1,183)Olympia, 17 mi away—Overall
2Goebel Septic Tank Service, Inc564.4★ (150)Centralia——
3Sound Septic564.9★ (338)Olympia, 17 mi away——
4Olympic Plumbing Technology544.9★ (1,814)Olympia, 24 mi awaySat · Sun · EveningsMost reviews
5Mr. Rooter Plumbing of Olympia534.8★ (124)Lacey, 13 mi away24/7Emergencies
6Goode and Associates534.0★ (8)Centralia——
7Environmental Design LLC523.0★ (12)Centralia——
8PipePros Trenchless Sewer and Drain llc525.0★ (13)Chehalis, 4 mi awaySat · Evenings—
9A+ Services514.6★ (728)Olympia, 24 mi awaySat · Sun—
10Bay Shore Construction504.9★ (33)Olympia, 23 mi away——

The 23 best septic service companies in Centralia, ranked

Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.

  1. Ranked #1 in Centralia

    #1 Howdys Doody Service, Inc.

    Based in Olympia, 17 mi away

    58/100CR Score

    Ranked #1 because of its Google rating and trade focus: 4.9★ from 1,183 Google reviews, listed on Google as “Septic system service”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.9★ from 1,183 Google reviews
    Hours
    Mon–Fri 8 AM–6 PM · Sat–Sun closed
    Address
    620 93rd Ave SE, Olympia, WA 98501
    View profile for Howdys Doody Service, Inc.(360) 584-9936

  3. #3 Sound Septic

    Based in Olympia, 17 mi away

    56/100CR Score

    Ranked #3 because of its Google rating and trade focus: 4.9★ from 338 Google reviews, listed on Google as “Septic system service”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.9★ from 338 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    View profile for Sound Septic(360) 793-5741

  4. #4 Olympic Plumbing Technology

    Based in Olympia, 24 mi away

    54/100CR Score

    Ranked #4 because of its Google rating and review volume: 4.9★ from 1,814 Google reviews, the most in Centralia.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.9★ from 1,814 Google reviews
    Hours
    Mon–Fri 7 AM–11 PM · Sat–Sun 9 AM–5 PM
    Address
    514 Pattison St NE, Olympia, WA 98506
    View profile for Olympic Plumbing Technology(360) 300-4306

  6. #6 Goode and Associates

    Based in Centralia

    53/100CR Score

    Ranked #6 because of its Google rating and trade focus: 4.0★ from 8 Google reviews, listed on Google as “Septic system service”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.0★ from 8 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    512 W Center St, Centralia, WA 98531
    View profile for Goode and Associates(360) 736-5218

  7. #7 Environmental Design LLC

    Based in Centralia

    52/100CR Score

    Ranked #7 because of its Google rating and trade focus: 3.0★ from 12 Google reviews, listed on Google as “Septic system service”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 3.0★ from 12 Google reviews
    Hours
    Mon–Thu 8 AM–6 PM · Fri 8 AM–12 PM · Sat–Sun closed
    View profile for Environmental Design LLC(360) 219-3343

  9. #9 A+ Services

    Based in Olympia, 24 mi away

    51/100CR Score

    Ranked #9 because of its Google rating and review volume: 4.6★ from 728 Google reviews.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.6★ from 728 Google reviews
    Hours
    Mon–Fri 7 AM–6 PM · Sat–Sun 8 AM–5 PM
    Address
    7225 Pacific Ave SE, Olympia, WA 98503
    View profile for A+ Services(360) 491-2900

  10. #10 Bay Shore Construction

    Based in Olympia, 23 mi away

    50/100CR Score

    Ranked #10 because of its Google rating and trade focus: 4.9★ from 33 Google reviews, listed on Google as “Septic system service”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.9★ from 33 Google reviews
    Hours
    Mon–Fri 8 AM–4 PM · Sat–Sun closed
    Address
    5628 Old Hwy 410 SW, Olympia, WA 98512
    View profile for Bay Shore Construction(360) 866-9200

  11. #11 Hunter Septic Design

    Based in Olympia, 16 mi away

    50/100CR Score

    Ranked #11 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.

    • 5.0★ from 8 Google reviews
    Hours
    Mon–Fri 8 AM–4:30 PM · Sat–Sun closed
    Address
    2201 93rd Ave SW # A, Olympia, WA 98512
    View profile for Hunter Septic Design(360) 753-1226

  12. #12 All County Rooter

    Based in Centralia

    49/100CR Score

    Ranked #12 because of its Google rating and review volume: 4.4★ from 49 Google reviews.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.4★ from 49 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    View profile for All County Rooter(360) 807-8962

  13. #13 Jim Hunter & Associates

    Based in Olympia, 16 mi away

    49/100CR Score

    Ranked #13 because of its Google rating and trade focus: 3.7★ from 24 Google reviews, listed on Google as “Septic system service”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 3.7★ from 24 Google reviews
    Hours
    Mon–Fri 7:30 AM–4:30 PM · Sat–Sun closed
    Address
    2201 93rd Ave SW # A, Olympia, WA 98512
    View profile for Jim Hunter & Associates(360) 753-1226

  14. #14 Gunstone Septic Cleaning

    Based in Olympia, 20 mi away

    48/100CR Score

    Ranked #14 because of its Google rating and trade focus: 3.6★ from 18 Google reviews, listed on Google as “Septic system service”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 3.6★ from 18 Google reviews
    Hours
    Mon–Fri 8 AM–6 PM · Sat–Sun closed
    Address
    3410 Sapp Rd SW, Olympia, WA 98512
    View profile for Gunstone Septic Cleaning(360) 352-9922

  15. Based in Olympia, 19 mi away

    48/100CR Score

    Ranked #15 because of its Google rating and trade focus: 4.2★ from 5 Google reviews, listed on Google as “Septic system service”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.2★ from 5 Google reviews
    Hours
    Mon–Fri 7:30 AM–4 PM · Sat–Sun closed
    Address
    7020 Fairview Rd SW, Olympia, WA 98512
    View profile for R & J Trends LLC(360) 352-5736

  16. #16 Tibbits Excavating

    Based in Chehalis, 7 mi away

    47/100CR Score

    Ranked #16 because of its Google rating and trade focus: 5.0★ from 22 Google reviews, listed on Google as “Excavating contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 5.0★ from 22 Google reviews
    Hours
    Mon–Fri 7:30 AM–5 PM · Sat–Sun closed
    Address
    1458 Rush Rd, Chehalis, WA 98532
    View profile for Tibbits Excavating(360) 622-9062

  19. #19 Bay Shore Construction

    Based in Olympia, 23 mi away

    46/100CR Score

    Ranked #19 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Septic system service”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 5.0★ from 3 Google reviews
    Hours
    Mon–Fri 8 AM–4 PM · Sat–Sun closed
    Address
    2103 Harrison Ave NW #2774, Olympia, WA 98502
    View profile for Bay Shore Construction(360) 866-9200

  21. #21 Dodge Excavation

    Based in Olympia, 20 mi away

    45/100CR Score

    Ranked #21 because of its Google rating and trade focus: 4.6★ from 22 Google reviews, listed on Google as “Excavating contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.6★ from 22 Google reviews
    Hours
    Mon–Fri 7 AM–8 PM · Sat 9 AM–12 PM · Sun closed
    Address
    4225 Black Lake Blvd SW, Olympia, WA 98512
    View profile for Dodge Excavation(360) 349-5333

  23. #23 Brooks Plumbing Co.

    Based in Lacey, 21 mi away

    43/100CR Score

    Ranked #23 because of its Google rating and review volume: 4.1★ from 60 Google reviews.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.1★ from 60 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    View profile for Brooks Plumbing Co.(360) 956-7220

Also serving Centralia

3 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.

Unranked septic service companies serving Centralia
BusinessGoogle ratingDistance
GRADE PROS LLC5.0★ (1)19 mi
Plumbers In Olympia23 mi
Schroeder Construction & Logging Inc3 mi

How we ranked Centralia septic service companies

We scored 23 Centralia 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.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed fromIn Centralia data
Reputation25%Google star rating, adjusted for how many reviews back itMeasured
Credentials15%Active state license, bond and workers’ comp on fileNot yet collected
Review volume10%Number of Google reviews, compared with the most-reviewed business on the listMeasured
Recency5%Share of reviews from the last 12 monthsNot yet collected
Availability5%Weekly open hours, Saturday, Sunday, 24/7 or same-dayMeasured
Trade focus10%How clearly the business does this trade (its Google category and name)Measured
Proximity5%Based in the city scores highest, less the farther away it isMeasured
Claimed profile10%The business has claimed its ContractorsRanked profile (free or paid earn the same)Measured
Partnered5%The business links to ContractorsRanked from its own website with our badge, checked periodicallyMeasured
ContractorsRanked reviews10%Verified customer reviews collected by ContractorsRanked: their rating and how many there areMeasured

Septic service companies in Centralia: frequently asked questions

Who is the best septic service company in Centralia?

By CR Score, the highest-ranked septic service company in Centralia, WA is Howdys Doody Service, Inc. with a CR Score of 58/100. It has 4.9★ from 1,183 Google reviews. Goebel Septic Tank Service, Inc (#2) and Sound Septic (#3) follow. We ranked 23 septic service companies on ten factors, last updated November 3, 2026.

How many septic service companies are there in Centralia?

ContractorsRanked ranks 23 septic service companies serving Centralia, WA. 4 of them are based in Centralia; the rest serve it from nearby towns. Another 3 within 25 mi are listed but not ranked yet. Counts are as of November 2026.

Which septic service companies in Centralia are open 24/7?

1 ranked septic service company in Centralia posts 24/7 hours. The highest-ranked is Mr. Rooter Plumbing of Olympia (#5). Hours come from each business's Google listing as of November 2026, so call to confirm.

Which septic service companies in Centralia work on weekends?

5 of 23 ranked septic service companies post Saturday hours and 3 post Sunday hours. The highest-ranked open Saturdays are Olympic Plumbing Technology (#4), Mr. Rooter Plumbing of Olympia (#5) and PipePros Trenchless Sewer and Drain llc (#8). Posted hours are office hours; crews may book weekend jobs separately.

What Google rating do Centralia septic service companies have?

The median Google rating among 23 rated septic service companies in Centralia is 4.6★, with a median of 22 reviews. Olympic Plumbing Technology has the most, 1,814 reviews, and ranks #4. 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 Centralia count in this ranking?

Yes, if they are within 25 mi of the Centralia 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 Centralia

  1. November 2026: CR Scores recalculated for 23 septic service companies serving Centralia.

More septic service companies and Centralia pages

Other trades in Centralia