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Best Septic Service Companies in Ann Arbor, MI (2026)

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

The short answer

  1. 1

    Best overall in Ann Arbor: Bolton Septic, CR Score 67/100; 4.9★ from 1,374 Google reviews; open 24/7.

  2. 3

    Best for emergencies (open 24/7): Cregger Plumbing, Heating, Cooling & Electrical, posts 24/7 hours; ranked #3 of 44.

  3. 4

    Most-reviewed: Burton's Plumbing & Heating, 2,211 Google reviews at 4.9★, the most of 44 ranked; ranked #4.

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

44 Ann Arbor septic service companies are ranked here by CR Score, from ten published factors. 10 are open 24/7, 25 open Saturdays and 14 open Sundays, based on posted hours. The median Google rating is 4.7★ across 44 rated businesses.

Top 10 septic service companies in Ann Arbor at a glance

Top 10 septic service companies in Ann Arbor at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Bolton Septic674.9★ (1,374)Ann Arbor24/7Overall
2Jack Spack Septic594.9★ (686)Ypsilanti, 8 mi away——
3Cregger Plumbing, Heating, Cooling & Electrical584.9★ (206)Farmington, 23 mi away24/7Emergencies
4Burton's Plumbing & Heating584.9★ (2,211)Wayne, 19 mi away—Most reviews
5Gareth's Septic and Sewer565.0★ (18)Ann Arbor24/7—
6Clog-Busters Sewer and Drain, LLC564.8★ (130)Chelsea, 1 mi awaySat—
7Associated Plumbing & Sewer Service, Inc.554.4★ (56)Ann ArborSat · Sun—
8D & J Septic Services554.6★ (68)South Lyon, 12 mi awaySat—
9RootBGone Sewer & Drain Cleaning545.0★ (213)Westland, 20 mi away24/7—
10Oakland Home Inspections LLC544.7★ (92)Walled Lake, 24 mi awaySat · Sun · Evenings—

The 44 best septic service companies in Ann Arbor, ranked

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

  1. Ranked #1 in Ann Arbor

    Based in Ann Arbor

    67/100CR Score

    Ranked #1 because of its Google rating and trade focus: 4.9★ from 1,374 Google reviews, listed on Google as “Septic system service”.

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

    • 4.9★ from 1,374 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
  2. Based in Ypsilanti, 8 mi away

    59/100CR Score

    Ranked #2 because of its Google rating and trade focus: 4.9★ from 686 Google reviews, listed on Google as “Septic system service”.

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

    • 4.9★ from 686 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat–Sun closed
    Address
    7415 Carpenter Rd, Ypsilanti, MI 48197
  3. Based in Wayne, 19 mi away

    58/100CR Score

    Ranked #4 because of its Google rating and review volume: 4.9★ from 2,211 Google reviews, the most in Ann Arbor.

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

    • 4.9★ from 2,211 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    34224 Michigan Ave, Wayne, MI 48184
  4. Based in Ann Arbor

    56/100CR Score

    Ranked #5 because of its Google rating and trade focus: 5.0★ from 18 Google reviews, listed on Google as “Plumber”.

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

    • 5.0★ from 18 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    6041 W Joy Rd, Dexter, MI 48130
  5. Based in South Lyon, 12 mi away

    55/100CR Score

    Ranked #8 because of its Google rating and trade focus: 4.6★ from 68 Google reviews, listed on Google as “Septic system service”.

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

    • 4.6★ from 68 Google reviews
    Hours
    Mon–Sat 7 AM–5 PM · Sun closed
    Address
    11445 Chamberlain Dr, South Lyon, MI 48178
  6. Based in Walled Lake, 24 mi away

    54/100CR Score

    Ranked #10 because of its Google rating and trade focus: 4.7★ from 92 Google reviews, listed on Google as “Septic system service”.

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

    • 4.7★ from 92 Google reviews
    Hours
    Mon–Sat 8 AM–7 PM · Sun 10 AM–7 PM
    Address
    1961 Twilight Hill Ct, Walled Lake, MI 48390
  7. Based in Ann Arbor

    53/100CR Score

    Ranked #14 because of its Google rating and trade focus: 4.8★ from 81 Google reviews, listed on Google as “Plumber”.

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

    • 4.8★ from 81 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat–Sun closed
  8. Based in South Lyon, 13 mi away

    53/100CR Score

    Ranked #16 because of its Google rating and trade focus: 4.7★ from 60 Google reviews, listed on Google as “Septic system service”.

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

    • 4.7★ from 60 Google reviews
    Hours
    Mon–Fri 8 AM–4:30 PM · Sat–Sun closed
    Address
    59075 Oasis Center Dr, South Lyon, MI 48178
  9. Based in Romulus, 18 mi away

    52/100CR Score

    Ranked #17 because of its Google rating and trade focus: 4.5★ from 37 Google reviews, listed on Google as “Plumber”.

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

    • 4.5★ from 37 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    37825 Westvale St, Romulus, MI 48174
  10. Based in South Lyon, 8 mi away

    51/100CR Score

    Ranked #19 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Septic system service”.

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

    • 5.0★ from 5 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    6176 Pontiac Trail, South Lyon, MI 48178
  11. Based in Milford, 25 mi away

    50/100CR Score

    Ranked #21 because of its Google rating and trade focus: 4.9★ from 146 Google reviews, listed on Google as “Plumber”.

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

    • 4.9★ from 146 Google reviews
    Hours
    Mon–Fri 8 AM–5:30 PM · Sat 8 AM–12 PM · Sun closed
    Address
    286 S Tipsico Lake Rd, Milford, MI 48380
  12. Based in Livonia, 25 mi away

    49/100CR Score

    Ranked #23 because of its Google rating and trade focus: 4.8★ from 36 Google reviews, listed on Google as “Plumber”.

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

    • 4.8★ from 36 Google reviews
    Hours
    Mon–Sun 6 AM–7 PM
    Address
    15593 Pomona Dr, Redford Township, MI 48239
  13. Based in Wixom, 20 mi away

    49/100CR Score

    Ranked #25 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–5 PM · Sat–Sun closed
    Address
    4706 Product Dr, Wixom, MI 48393

All 44 septic service companies

#1 to #25 are shown in full above. Here are #26 to #44, in CR Score order; each links to its profile.

septic service companies in Ann Arbor, ranks 26 to 44
RankBusinessCR ScoreGoogle ratingDistance
26West Water & Sewer Specialists493.4★ (12)14 mi
27Ally Plumbing and Sewer484.2★ (5)21 mi
28Power Vac of Michigan484.2★ (33)19 mi
29Do It All Do It Right Sewers484.6★ (13)22 mi
30Diversified Excavating & Site Utilities, LLC483.5★ (11)In Ann Arbor
31Bob's Sanitation483.9★ (18)22 mi
32Klear Line Sewer & Drain Services484.7★ (35)24 mi
33American Sewer Cleaning Co(phonenumberdoesn'twork)474.7★ (34)24 mi
34Pat's Sewer Cleaning474.0★ (72)18 mi
35Brendel's Septic Tank Service, LLC463.3★ (44)22 mi
36Great Lakes Sewer Services464.5★ (8)21 mi
37Mango Plumbing & Sewer Service464.0★ (52)24 mi
38Allied Plumbing & Sewer LLC455.0★ (14)23 mi
39Scotty's Potties453.2★ (87)22 mi
40Bollinger Sanitation & Excavating454.5★ (36)15 mi
41Janette & Sons Excavating and Septic Services444.2★ (19)21 mi
42WAM Contracting LLC445.0★ (6)20 mi
43John's Plumbing, Inc of Brighton425.0★ (4)24 mi
44PH Contracting, LLC423.8★ (20)25 mi

Also serving Ann Arbor

12 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 Ann Arbor septic service companies

We scored 44 Ann Arbor 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 Ann Arbor 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 Ann Arbor: frequently asked questions

Who is the best septic service company in Ann Arbor?

By CR Score, the highest-ranked septic service company in Ann Arbor, MI is Bolton Septic with a CR Score of 67/100. It has 4.9★ from 1,374 Google reviews. It is open 24/7. Jack Spack Septic (#2) and Cregger Plumbing, Heating, Cooling & Electrical (#3) follow. We ranked 44 septic service companies on ten factors, last updated November 3, 2026.

How many septic service companies are there in Ann Arbor?

ContractorsRanked ranks 44 septic service companies serving Ann Arbor, MI. 7 of them are based in Ann Arbor; the rest serve it from nearby towns. Another 12 within 25 mi are listed but not ranked yet. Counts are as of November 2026.

Which septic service companies in Ann Arbor are open 24/7?

10 ranked septic service companies in Ann Arbor post 24/7 hours. The highest-ranked are Bolton Septic (#1), Cregger Plumbing, Heating, Cooling & Electrical (#3) and Gareth's Septic and Sewer (#5). Hours come from each business's Google listing as of November 2026, so call to confirm.

Which septic service companies in Ann Arbor work on weekends?

25 of 44 ranked septic service companies post Saturday hours and 14 post Sunday hours. The highest-ranked open Saturdays are Bolton Septic (#1), Cregger Plumbing, Heating, Cooling & Electrical (#3) and Gareth's Septic and Sewer (#5). Posted hours are office hours; crews may book weekend jobs separately.

What Google rating do Ann Arbor septic service companies have?

The median Google rating among 44 rated septic service companies in Ann Arbor is 4.7★, with a median of 36 reviews. Burton's Plumbing & Heating has the most, 2,211 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 Ann Arbor count in this ranking?

Yes, if they are within 25 mi of the Ann Arbor 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 Ann Arbor

  1. November 2026: CR Scores recalculated for 44 septic service companies serving Ann Arbor.

More septic service companies and Ann Arbor pages

Other trades in Ann Arbor