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Best Septic Service Companies in Cottage Grove, MN (2026)

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

The short answer

  1. 1

    Best overall in Cottage Grove: Ron the Sewer Rat, CR Score 61/100; 5.0★ from 4,531 Google reviews; open 7 days a week.

  2. 2

    Best for emergencies (open 24/7): Guy's Sewer & Drain, posts 24/7 hours; ranked #2 of 62.

  3. 22

    Most-reviewed: Marvel Sewer and Drain, 1,362 Google reviews at 5.0★, the most of 62 ranked after Ron the Sewer Rat; ranked #22.

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

62 Cottage Grove septic service companies are ranked here by CR Score, from ten published factors. 23 are open 24/7, 35 open Saturdays and 28 open Sundays, based on posted hours. The median Google rating is 4.8★ across 62 rated businesses.

Top 10 septic service companies in Cottage Grove at a glance

Top 10 septic service companies in Cottage Grove at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Ron the Sewer Rat615.0★ (4,531)Eagan, 9 mi awaySat · Sun · EveningsOverall
2Guy's Sewer & Drain565.0★ (659)Saint Louis Park, 23 mi away24/7Emergencies
3Gopher Sewer and Drain564.9★ (717)Fridley, 23 mi away24/7—
4John's Sewer & Drain Cleaning, Inc.564.9★ (336)New Brighton, 20 mi away24/7—
5Alto Sewer Service - MN Drain Cleaning Company554.4★ (80)Inver Grove Heights, 7 mi away24/7—
6Saint Croix Sewer Service, Inc.544.8★ (26)Hastings, 4 mi away——
7Cutting Edge Sewer & Drain LLC544.8★ (279)Saint Louis Park, 23 mi away24/7—
8Midway Sewer Services Co of St Paul544.7★ (45)Bloomington, 13 mi away24/7—
9Meyer Sewer Service544.8★ (22)Saint Paul, 5 mi away——
10Biffs534.7★ (185)Shakopee, 24 mi away24/7—

The 62 best septic service companies in Cottage Grove, 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 Cottage Grove

    Based in Eagan, 9 mi away

    61/100CR Score

    Ranked #1 because of its Google rating and review volume: 5.0★ from 4,531 Google reviews, the most in Cottage Grove.

    • 5.0★ from 4,531 Google reviews
    Hours
    Mon–Fri 6:30 AM–10 PM · Sat–Sun 8 AM–10 PM
    Address
    875 Blue Gentian Rd Suite 900, Eagan, MN 55121
  2. Based in Saint Paul, 5 mi away

    54/100CR Score

    Ranked #9 because of its Google rating and trade focus: 4.8★ from 22 Google reviews, listed on Google as “Septic system service”.

    • 4.8★ from 22 Google reviews
    Hours
    Mon–Fri 8 AM–4 PM · Sat–Sun closed
    Address
    5325 Manning Ave S, Afton, MN 55001
  3. #10 Biffs

    Based in Shakopee, 24 mi away

    53/100CR Score

    Ranked #10 because of its Google rating and trade focus: 4.7★ from 185 Google reviews, listed on Google as “Septic system service”.

    • 4.7★ from 185 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    6430 County Rd 101, Shakopee, MN 55379
  4. Based in Bloomington, 17 mi away

    53/100CR Score

    Ranked #12 because of its Google rating and trade focus: 4.8★ from 164 Google reviews, listed on Google as “Plumber”.

    • 4.8★ from 164 Google reviews
    Hours
    Mon–Fri 7 AM–10 PM · Sat–Sun 10 AM–10 PM
    Address
    9001 Emerson Ave S, Bloomington, MN 55420
  5. Based in Burnsville, 16 mi away

    53/100CR Score

    Ranked #13 because of its Google rating and trade focus: 4.4★ from 151 Google reviews, listed on Google as “Plumber”.

    • 4.4★ from 151 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    12124 12th Ave S, Burnsville, MN 55337
  6. Based in Saint Louis Park, 21 mi away

    53/100CR Score

    Ranked #15 because of its Google rating and trade focus: 4.7★ from 353 Google reviews, listed on Google as “Plumber”.

    • 4.7★ from 353 Google reviews
    Hours
    Mon–Thu 6:30 AM–9 PM · Fri 6:30 AM–7 PM · Sat 7 AM–7 PM · Sun 7 AM–8:30 PM
    Address
    3017 Natchez Ave S, St Louis Park, MN 55416
  7. Based in Stillwater, 17 mi away

    53/100CR Score

    Ranked #18 because of its Google rating and trade focus: 5.0★ from 17 Google reviews, listed on Google as “Septic system service”.

    • 5.0★ from 17 Google reviews
    Hours
    Mon–Fri 8 AM–5:30 PM · Sat 8 AM–12 PM · Sun closed
    Address
    616 5th St N, Stillwater, MN 55082
  8. Based in Minneapolis, 16 mi away

    52/100CR Score

    Ranked #24 because of its Google rating and trade focus: 5.0★ from 271 Google reviews, listed on Google as “Plumber”.

    • 5.0★ from 271 Google reviews
    Hours
    Mon–Thu 8 AM–5 PM · Fri 8 AM–4 PM · Sat–Sun closed
    Address
    3346 Snelling Ave, Minneapolis, MN 55406

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

septic service companies in Cottage Grove, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Schlomka Services Llc514.1★ (25)9 mi
27Kloeppner Services and Design515.0★ (31)18 mi
28Right Away Sewer & Drain Cleaning515.0★ (183)23 mi
29Capra's Utilities Inc514.9★ (45)20 mi
30Ajax Twin City Sewer Services515.0★ (8)17 mi
31Lake & Land Survey Inc514.8★ (6)10 mi
32Pinky's Environmental & Sewer514.1★ (9)9 mi
33Stoi's Sewer Services LLC514.4★ (20)6 mi
34John's Sewer & Drain Cleaning514.6★ (16)19 mi
35Freddy's Ready Sewer, Camera & Drain Service514.3★ (6)15 mi
36The Sewer Dude Sewer and Drain Cleaning515.0★ (56)18 mi
37Lucky Dog Sewer & Drain515.0★ (42)23 mi
38Aaron Anderson Sewer and Drain Cleaning, Inc.505.0★ (109)16 mi
39B's Pumping Service505.0★ (22)21 mi
40Hennes Septic Pumping504.7★ (22)21 mi
41C.W.'s Excavating, Inc.505.0★ (3)10 mi
42Discount Sewer And Drain Cleaning503.9★ (37)19 mi
43JMJ Sewer Services505.0★ (10)18 mi
44Sewer Crawlers495.0★ (27)19 mi
45Ready Plumbing Sewer And Drain Cleaning492.3★ (3)17 mi
46Hiawatha Plumbing Drain-Sewer493.7★ (6)15 mi
47United Rentals - Reliable Onsite Services495.0★ (3)16 mi
48Hopke Sewer & Drain Inc492.3★ (3)19 mi
49Darrell's Septic Service, Inc.494.8★ (17)25 mi
50Twin Cities Sewer & Water484.8★ (32)17 mi

Also serving Cottage Grove

17 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 Cottage Grove septic service companies

We scored 62 Cottage Grove 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 Cottage Grove 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 Cottage Grove: frequently asked questions

Who is the best septic service company in Cottage Grove?

By CR Score, the highest-ranked septic service company in Cottage Grove, MN is Ron the Sewer Rat with a CR Score of 61/100. It has 5.0★ from 4,531 Google reviews. It is open 7 days a week. Guy's Sewer & Drain (#2) and Gopher Sewer and Drain (#3) follow. We ranked 62 septic service companies on ten factors, last updated November 3, 2026.

How many septic service companies are there in Cottage Grove?

ContractorsRanked ranks 62 septic service companies serving Cottage Grove, MN. Another 17 within 25 mi are listed but not ranked yet. Counts are as of November 2026.

Which septic service companies in Cottage Grove are open 24/7?

23 ranked septic service companies in Cottage Grove post 24/7 hours. The highest-ranked are Guy's Sewer & Drain (#2), Gopher Sewer and Drain (#3) and John's Sewer & Drain Cleaning, Inc. (#4). Hours come from each business's Google listing as of November 2026, so call to confirm.

Which septic service companies in Cottage Grove work on weekends?

35 of 62 ranked septic service companies post Saturday hours and 28 post Sunday hours. The highest-ranked open Saturdays are Ron the Sewer Rat (#1), Guy's Sewer & Drain (#2) and Gopher Sewer and Drain (#3). Posted hours are office hours; crews may book weekend jobs separately.

What Google rating do Cottage Grove septic service companies have?

The median Google rating among 62 rated septic service companies in Cottage Grove is 4.8★, with a median of 27 reviews. Ron the Sewer Rat has the most, 4,531 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 Cottage Grove count in this ranking?

Yes, if they are within 25 mi of the Cottage Grove 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 Cottage Grove

  1. November 2026: CR Scores recalculated for 62 septic service companies serving Cottage Grove.

More septic service companies and Cottage Grove pages

Other trades in Cottage Grove