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Best Septic Service Companies in Washington, UT (2026)

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

The short answer

  1. 1

    Best overall in Washington: Mr. Rooter Plumbing of St. George, CR Score 61/100; 4.9★ from 1,014 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): Aardvark Waste Services, posts 24/7 hours; ranked #2 of 10.

  3. 5

    Most-reviewed: Mr. Rooter Plumbing of Hurricane, 161 Google reviews at 4.9★, the most of 10 ranked after Mr. Rooter Plumbing of St. George; ranked #5.

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

10 Washington septic service companies are ranked here by CR Score, from ten published factors. 9 are open 24/7, 8 open Saturdays and 8 open Sundays, based on posted hours. The median Google rating is 4.9★ across 10 rated businesses.

Most of this list also appears on the Septic service companies in Saint George ranking. See Septic service companies in Saint George

Top 10 septic service companies in Washington at a glance

Top 10 septic service companies in Washington at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Mr. Rooter Plumbing of St. George614.9★ (1,014)Saint George, 4 mi away24/7Overall
2Aardvark Waste Services585.0★ (16)Saint George, 3 mi away24/7Emergencies
3TNT Waste Service574.4★ (22)Saint George, 6 mi away24/7—
4iGOTPOOP574.5★ (40)Washington24/7—
5Mr. Rooter Plumbing of Hurricane574.9★ (161)Hurricane, 6 mi away24/7Most reviews
6Discount Plumbing Service, INC.564.7★ (116)Saint George, 2 mi away24/7—
7John's Septic Services565.0★ (6)Saint George, 5 mi away24/7—
8Empire Waste Services544.2★ (41)Washington——
9Patriot Plumbing Services Inc.525.0★ (13)Washington24/7—
10Complete Pump Service515.0★ (24)Hurricane, 13 mi away24/7—

The 10 best septic service companies in Washington, 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.

  3. #3 TNT Waste Service

    Based in Saint George, 6 mi away

    57/100CR Score

    Ranked #3 because of its Google rating and trade focus: 4.4★ from 22 Google reviews, listed on Google as “Septic system service”.

    • 4.4★ from 22 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1074 W Shady Springs Dr, St. George, UT 84770
    View profile for TNT Waste Service(435) 268-2301

  4. #4 iGOTPOOP

    Based in Washington

    57/100CR Score

    Ranked #4 because of its Google rating and trade focus: 4.5★ from 40 Google reviews, listed on Google as “Septic system service”.

    • 4.5★ from 40 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1324 S Sandhill Dr Ste 4, Washington, UT 84780
    View profile for iGOTPOOP(435) 472-2580

  8. #8 Empire Waste Services

    Based in Washington

    54/100CR Score

    Ranked #8 because of its Google rating and trade focus: 4.2★ from 41 Google reviews, listed on Google as “Septic system service”.

    • 4.2★ from 41 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    1391 Red Ledge Rd, Washington, UT 84780
    View profile for Empire Waste Services(435) 628-0957

How we ranked Washington septic service companies

We scored 10 Washington 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 Washington 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 Washington: frequently asked questions

Who is the best septic service company in Washington?

By CR Score, the highest-ranked septic service company in Washington, UT is Mr. Rooter Plumbing of St. George with a CR Score of 61/100. It has 4.9★ from 1,014 Google reviews. It is open 24/7. Aardvark Waste Services (#2) and TNT Waste Service (#3) follow. We ranked 10 septic service companies on ten factors, last updated November 3, 2026.

How many septic service companies are there in Washington?

ContractorsRanked ranks 10 septic service companies serving Washington, UT. 3 of them are based in Washington; the rest serve it from nearby towns. Counts are as of November 2026.

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

9 ranked septic service companies in Washington post 24/7 hours. The highest-ranked are Mr. Rooter Plumbing of St. George (#1), Aardvark Waste Services (#2) and TNT Waste Service (#3). Hours come from each business's Google listing as of November 2026, so call to confirm.

Which septic service companies in Washington work on weekends?

8 of 10 ranked septic service companies post Saturday hours and 8 post Sunday hours. The highest-ranked open Saturdays are Mr. Rooter Plumbing of St. George (#1), Aardvark Waste Services (#2) and TNT Waste Service (#3). Posted hours are office hours; crews may book weekend jobs separately.

What Google rating do Washington septic service companies have?

The median Google rating among 10 rated septic service companies in Washington is 4.9★, with a median of 32 reviews. Mr. Rooter Plumbing of St. George has the most, 1,014 reviews, and ranks #1. 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 Washington count in this ranking?

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

  1. November 2026: CR Scores recalculated for 10 septic service companies serving Washington.

More septic service companies and Washington pages

Other trades in Washington