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Best Septic Service Companies in Redmond, WA (2026)

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

The short answer

  1. 1

    Best overall in Redmond: Fresh N Clean Septic, CR Score 64/100; 4.9★ from 663 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): Zoom Drain of Seattle, posts 24/7 hours; ranked #2 of 151.

  3. 10

    Most-reviewed: Gene Johnson Plumbing, 4,041 Google reviews at 4.8★, the most of 151 ranked; ranked #10.

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

151 Redmond septic service companies are ranked here by CR Score, from ten published factors. 79 are open 24/7, 121 open Saturdays and 101 open Sundays, based on posted hours. The median Google rating is 4.9★ across 151 rated businesses.

Top 10 septic service companies in Redmond at a glance

Top 10 septic service companies in Redmond at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Fresh N Clean Septic644.9★ (663)Woodinville, 6 mi away24/7Overall
2Zoom Drain of Seattle645.0★ (835)Seattle, 11 mi away24/7Emergencies
3A Wesco Septic Services624.8★ (550)Snohomish, 12 mi away24/7—
4Washington Rooter Sewer & Drain Service LLC605.0★ (310)Bellevue, 3 mi away24/7—
5American Rooter Sewer & Drain Service LLC605.0★ (316)Bellevue, 6 mi away24/7—
6A Wesco Septic Services604.7★ (229)Snohomish, 13 mi away24/7—
72 Sons Plumbing, Sewer, Septic, Electric, Heating & Air604.9★ (3,532)Seattle, 12 mi awaySat · Sun · Evenings—
8Septic Response594.9★ (213)Kirkland, 3 mi away24/7—
9Puget Sound Septic595.0★ (413)Maple Valley, 20 mi awaySat · Sun · Evenings—
10Gene Johnson Plumbing594.8★ (4,041)Seattle, 11 mi away24/7Most reviews

The 151 best septic service companies in Redmond, 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.

  1. Ranked #1 in Redmond

    Based in Woodinville, 6 mi away

    64/100CR Score

    Ranked #1 because of its Google rating and trade focus: 4.9★ from 663 Google reviews, listed on Google as “Septic system service”.

    • 4.9★ from 663 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    17226 NE Woodinville Duvall Rd, Woodinville, WA 98072
  2. Based in Seattle, 11 mi away

    64/100CR Score

    Ranked #2 because of its Google rating and trade focus: 5.0★ from 835 Google reviews, listed on Google as “Septic system service”.

    • 5.0★ from 835 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    10011 Greenwood Ave N, Seattle, WA 98133
  3. Based in Kirkland, 3 mi away

    59/100CR Score

    Ranked #8 because of its Google rating and trade focus: 4.9★ from 213 Google reviews, listed on Google as “Plumber”.

    • 4.9★ from 213 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    672 7th Ave, Kirkland, WA 98033
  4. Based in Maple Valley, 20 mi away

    59/100CR Score

    Ranked #9 because of its Google rating and trade focus: 5.0★ from 413 Google reviews, listed on Google as “Septic system service”.

    • 5.0★ from 413 Google reviews
    Hours
    Mon–Fri 9 AM–10:30 PM · Sat 9 AM–6 PM · Sun 11 AM–9 PM
    Address
    20222 SE 245th St, Maple Valley, WA 98038

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 151 ranked septic service companies here; the rest are on their profiles.

septic service companies in Redmond, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26A1 Septic Service575.0★ (279)17 mi
27The Septic Group (Formerly Kingsgate Septic)563.1★ (12)2 mi
28Newline Pipe Solutions Plumbing Sewer & Drain565.0★ (36)3 mi
29Inspection Boss565.0★ (33)12 mi
30Beacon Plumbing, Heating, Electrical & Mechanical Inc - Seattle564.5★ (2,956)11 mi
31Above Grade Septic565.0★ (65)18 mi
32Sewer Friendly564.8★ (198)13 mi
33Eastside Plumbing, Sewer, Septic, Electric, Heating & Air - Issaquah564.9★ (98)11 mi
34Upfront Septic & Plumbing - Woodinville565.0★ (3)5 mi
35ALL WAYS ROOTER LLC Sewer & Drain, Hydro Jet565.0★ (180)10 mi
36Kaizen Plumbing & Sewer, Bellevue565.0★ (29)4 mi
37Pacific Custom Sewer and Drainage565.0★ (57)9 mi
38Fox Plumbing, Heating & Cooling (now a Gene Johnson company)564.8★ (2,264)19 mi
39Craftsman Plumbing564.8★ (636)12 mi
40Jim Dandy Sewer and Plumbing564.5★ (436)13 mi
41Aqualine Plumbing & Sewer564.8★ (579)15 mi
42Sky Valley Pumper, Inc554.9★ (66)19 mi
43Green City Plumbing and Sewer555.0★ (32)1 mi
44Northwest Septic & Pumping554.6★ (169)20 mi
45Lighthouse Plumbing555.0★ (268)13 mi
46SOS Septic Pumping555.0★ (26)22 mi
47McNel Septic Service554.9★ (144)12 mi
48Dirt Cheap Sewer Inc | Second Opinion Sewer555.0★ (90)16 mi
49Pro Sewer Repair555.0★ (201)21 mi
50Lakeside Septic554.9★ (85)16 mi

Also serving Redmond

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.

How we ranked Redmond septic service companies

We scored 151 Redmond 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 Redmond 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 Redmond: frequently asked questions

Who is the best septic service company in Redmond?

By CR Score, the highest-ranked septic service company in Redmond, WA is Fresh N Clean Septic with a CR Score of 64/100. It has 4.9★ from 663 Google reviews. It is open 24/7. Zoom Drain of Seattle (#2) and A Wesco Septic Services (#3) follow. We ranked 151 septic service companies on ten factors, last updated November 3, 2026.

How many septic service companies are there in Redmond?

ContractorsRanked ranks 151 septic service companies serving Redmond, WA. 1 of them is based in Redmond; 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 Redmond are open 24/7?

79 ranked septic service companies in Redmond post 24/7 hours. The highest-ranked are Fresh N Clean Septic (#1), Zoom Drain of Seattle (#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 Redmond work on weekends?

121 of 151 ranked septic service companies post Saturday hours and 101 post Sunday hours. The highest-ranked open Saturdays are Fresh N Clean Septic (#1), Zoom Drain of Seattle (#2) and A Wesco Septic Services (#3). Posted hours are office hours; crews may book weekend jobs separately.

What Google rating do Redmond septic service companies have?

The median Google rating among 151 rated septic service companies in Redmond is 4.9★, with a median of 38 reviews. Gene Johnson Plumbing has the most, 4,041 reviews, and ranks #10. 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 Redmond count in this ranking?

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

  1. November 2026: CR Scores recalculated for 151 septic service companies serving Redmond.
  2. November 2026: 1 duplicate listing merged.

More septic service companies and Redmond pages

Other trades in Redmond