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Best Septic Service Companies in Barnstable, MA (2026)

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

The short answer

  1. 1

    Best overall in Barnstable: Cape Drain & Rooter, CR Score 61/100; 5.0★ from 60 Google reviews; open 24/7.

  2. 3

    Best for emergencies (open 24/7): JMB Septic Service, posts 24/7 hours; ranked #3 of 42.

  3. 23

    Most-reviewed: Master Tech Plumbing Inc., 1,474 Google reviews at 4.9★, the most of 42 ranked; ranked #23.

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

42 Barnstable septic service companies are ranked here by CR Score, from ten published factors. 11 are open 24/7, 20 open Saturdays and 14 open Sundays, based on posted hours. The median Google rating is 5.0★ across 42 rated businesses.

Top 10 septic service companies in Barnstable at a glance

Top 10 septic service companies in Barnstable at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Cape Drain & Rooter615.0★ (60)Middleborough, 7 mi away24/7Overall
2RV Pump Service615.0★ (311)Mashpee, 10 mi away——
3JMB Septic Service605.0★ (127)Hyannis, 3 mi away24/7Emergencies
4Dibuono sewer and drain595.0★ (7)Barnstable24/7—
5Graci Septic Solutions594.9★ (20)Mashpee, 7 mi away24/7—
6Cape Cod Septic Services594.2★ (37)West Yarmouth, 4 mi away24/7—
7Ready Rooter Inc584.5★ (45)Marstons Mills, 10 mi away24/7—
8Debarros Septic585.0★ (22)Marstons Mills, 5 mi awaySat · Sun—
9Robert Childs Inc.584.4★ (82)BarnstableSat—
10Gellar's Septic Pumping575.0★ (51)Plymouth, 21 mi away24/7—

The 42 best septic service companies in Barnstable, ranked

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

  1. Ranked #1 in Barnstable

    Based in Middleborough, 7 mi away

    61/100CR Score

    Ranked #1 because of its Google rating and trade focus: 5.0★ from 60 Google reviews, listed on Google as “Septic system service”.

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

    • 5.0★ from 60 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
  2. Based in Mashpee, 10 mi away

    61/100CR Score

    Ranked #2 because of its Google rating and trade focus: 5.0★ from 311 Google reviews, listed on Google as “Septic system service”.

    Based on 7 of 10 factors; credentials, recency and availability not yet collected.

    • 5.0★ from 311 Google reviews
    Address
    133 MA-130, Forestdale, MA 02644
  3. Based in Hyannis, 3 mi away

    60/100CR Score

    Ranked #3 because of its Google rating and trade focus: 5.0★ from 127 Google reviews, listed on Google as “Plumber”.

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

    • 5.0★ from 127 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    306 Falmouth Rd Unit 5, Hyannis, MA 02601
  4. Based in Barnstable

    59/100CR Score

    Ranked #4 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Septic system service”.

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

    • 5.0★ from 7 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    35 Content Ln, Cotuit, MA 02635
  5. Based in Mashpee, 7 mi away

    59/100CR Score

    Ranked #5 because of its Google rating and trade focus: 4.9★ from 20 Google reviews, listed on Google as “Septic system service”.

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

    • 4.9★ from 20 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
  6. Based in West Yarmouth, 4 mi away

    59/100CR Score

    Ranked #6 because of its Google rating and trade focus: 4.2★ from 37 Google reviews, listed on Google as “Septic system service”.

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

    • 4.2★ from 37 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    350 Main St, West Yarmouth, MA 02673
  7. Based in Marstons Mills, 10 mi away

    58/100CR Score

    Ranked #7 because of its Google rating and trade focus: 4.5★ from 45 Google reviews, listed on Google as “Septic system service”.

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

    • 4.5★ from 45 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    17 Jan Sebastian Dr # 16, Sandwich, MA 02563
  8. Based in Marstons Mills, 5 mi away

    58/100CR Score

    Ranked #8 because of its Google rating and trade focus: 5.0★ from 22 Google reviews, listed on Google as “Septic system service”.

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

    • 5.0★ from 22 Google reviews
    Hours
    Mon–Sun 8 AM–5 PM
    Address
    109 Flint St, Marstons Mills, MA 02648
  9. Based in Barnstable

    58/100CR Score

    Ranked #9 because of its Google rating and trade focus: 4.4★ from 82 Google reviews, listed on Google as “Septic system service”.

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

    • 4.4★ from 82 Google reviews
    Hours
    Mon–Fri 7 AM–5 PM · Sat 7 AM–1 PM · Sun closed
    Address
    169 Great Western Rd, South Dennis, MA 02660
  10. Based in Plymouth, 21 mi away

    57/100CR Score

    Ranked #10 because of its Google rating and trade focus: 5.0★ from 51 Google reviews, listed on Google as “Septic system service”.

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

    • 5.0★ from 51 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    506 State Rd, Plymouth, MA 02360
  11. Based in Mashpee, 11 mi away

    57/100CR Score

    Ranked #11 because of its Google rating and trade focus: 4.7★ from 14 Google reviews, listed on Google as “Septic system service”.

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

    • 4.7★ from 14 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    100 Echo Rd, Mashpee, MA 02649
  12. Based in Barnstable

    57/100CR Score

    Ranked #12 because of its Google rating and trade focus: 4.4★ from 13 Google reviews, listed on Google as “Septic system service”.

    Based on 7 of 10 factors; credentials, recency and availability not yet collected.

    • 4.4★ from 13 Google reviews
    Address
    Harwich Port, MA 02646
  13. Based in Middleborough, 21 mi away

    56/100CR Score

    Ranked #14 because of its Google rating and trade focus: 5.0★ from 119 Google reviews, listed on Google as “Septic system service”.

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

    • 5.0★ from 119 Google reviews
    Hours
    Mon–Thu 8 AM–5:30 PM · Fri 8 AM–4:30 PM · Sat 9 AM–4 PM · Sun closed
  14. Based in Barnstable

    55/100CR Score

    Ranked #15 because of its Google rating and availability: 5.0★ from 25 Google reviews, open 24/7.

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

    • 5.0★ from 25 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
  15. Based in East Falmouth, 16 mi away

    55/100CR Score

    Ranked #17 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Septic system service”.

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

    • 5.0★ from 6 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    10 Victors Ln, East Falmouth, MA 02536
  16. Based in Middleborough, 10 mi away

    55/100CR Score

    Ranked #18 because of its Google rating and trade focus: 5.0★ from 13 Google reviews, listed on Google as “Septic system service”.

    Based on 7 of 10 factors; credentials, recency and availability not yet collected.

    • 5.0★ from 13 Google reviews
    Address
    2 Oriole Ln, Sandwich, MA 02563
  17. Based in Barnstable

    54/100CR Score

    Ranked #21 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Septic system service”.

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

    • 5.0★ from 7 Google reviews
    Hours
    Mon–Fri 7 AM–5 PM · Sat–Sun closed
    Address
    17 Northside Dr, South Dennis, MA 02660
  18. Based in East Falmouth, 14 mi away

    53/100CR Score

    Ranked #23 because of its Google rating and review volume: 4.9★ from 1,474 Google reviews, the most in Barnstable.

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

    • 4.9★ from 1,474 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    506 Waquoit Hwy, East Falmouth, MA 02536

All 42 septic service companies

#1 to #25 are shown in full above. Here are #26 to #42, in CR Score order; each links to its profile.

septic service companies in Barnstable, ranks 26 to 42
RankBusinessCR ScoreGoogle ratingDistance
26Quinn's Excavation & Septic, Inc.525.0★ (15)In Barnstable
27Smith's Cesspool Services515.0★ (16)24 mi
28Discount Septic Pumping515.0★ (4)17 mi
29AG's Bobcat & Dump Truck Service505.0★ (15)9 mi
30Clifford Excavation, LLC505.0★ (3)In Barnstable
31Robert B Our Co Inc504.4★ (126)9 mi
32Meyer and Sons Builders, Inc505.0★ (20)In Barnstable
33Richmond Sand & Gravel494.4★ (17)21 mi
34S.H. Dunford LLC495.0★ (16)In Barnstable
35Waters Robert Septic Service485.0★ (6)22 mi
36South Coast Creations484.5★ (68)15 mi
37B & B Excavation474.7★ (29)10 mi
38T. W. Nickerson, Inc.474.2★ (37)14 mi
39Quirk Excavating & Trucking454.2★ (5)7 mi
40Richmond Excavating & Landscape Supply454.9★ (10)20 mi
41Capewide Enterprises, LLC444.3★ (8)12 mi
42Plymouth Septic Service435.0★ (6)24 mi

Also serving Barnstable

19 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 Barnstable septic service companies

We scored 42 Barnstable 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 Barnstable 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 Barnstable: frequently asked questions

Who is the best septic service company in Barnstable?

By CR Score, the highest-ranked septic service company in Barnstable, MA is Cape Drain & Rooter with a CR Score of 61/100. It has 5.0★ from 60 Google reviews. It is open 24/7. RV Pump Service (#2) and JMB Septic Service (#3) follow. We ranked 42 septic service companies on ten factors, last updated November 3, 2026.

How many septic service companies are there in Barnstable?

ContractorsRanked ranks 42 septic service companies serving Barnstable, MA. 11 of them are based in Barnstable; the rest serve it from nearby towns. Another 19 within 25 mi are listed but not ranked yet. Counts are as of November 2026.

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

11 ranked septic service companies in Barnstable post 24/7 hours. The highest-ranked are Cape Drain & Rooter (#1), JMB Septic Service (#3) and Dibuono sewer and drain (#4). Hours come from each business's Google listing as of November 2026, so call to confirm.

Which septic service companies in Barnstable work on weekends?

20 of 42 ranked septic service companies post Saturday hours and 14 post Sunday hours. The highest-ranked open Saturdays are Cape Drain & Rooter (#1), JMB Septic Service (#3) and Dibuono sewer and drain (#4). Posted hours are office hours; crews may book weekend jobs separately.

What Google rating do Barnstable septic service companies have?

The median Google rating among 42 rated septic service companies in Barnstable is 5.0★, with a median of 16 reviews. Master Tech Plumbing Inc. has the most, 1,474 reviews, and ranks #23. 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 Barnstable count in this ranking?

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

  1. November 2026: CR Scores recalculated for 42 septic service companies serving Barnstable.
  2. November 2026: 1 duplicate listing merged.

More septic service companies and Barnstable pages

Other trades in Barnstable