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Best Septic Service Companies in Westerly, RI (2026)

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

The short answer

  1. 1

    Best overall in Westerly: Macamaux Septic Pumping, CR Score 64/100; 4.8★ from 43 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): ProSeptic, posts 24/7 hours; ranked #2 of 56.

  3. 16

    Most-reviewed: Superior Sewer & Drain Service, 161 Google reviews at 4.9★, the most of 56 ranked; ranked #16.

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

56 Westerly septic service companies are ranked here by CR Score, from ten published factors. 14 are open 24/7, 29 open Saturdays and 18 open Sundays, based on posted hours. The median Google rating is 4.8★ across 56 rated businesses.

Top 10 septic service companies in Westerly at a glance

Top 10 septic service companies in Westerly at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Macamaux Septic Pumping644.8★ (43)Westerly24/7Overall
2ProSeptic625.0★ (123)East Greenwich, 21 mi away24/7Emergencies
3New London County Septic & Excavation624.8★ (50)Ledyard, 11 mi away24/7—
4Shoreline Sanitation614.8★ (13)Westerly24/7—
5Professional Drain Services of Southern New England, LLC615.0★ (144)Hopkinton, 4 mi away24/7—
6HAWKINS MAINTENANCE LLC.595.0★ (40)Plainfield, 22 mi away24/7—
7Flushaway Septic Tank Cleaning INC594.8★ (39)Norwich, 15 mi awaySat · Sun—
8Friendly Septic584.4★ (57)Warwick, 21 mi away24/7—
9Skips Wastewater Services575.0★ (91)Waterford, 17 mi away——
10Abrahamson Septic LLC574.9★ (32)Ledyard, 12 mi awaySat—

The 56 best septic service companies in Westerly, ranked

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

  1. Ranked #1 in Westerly

    Based in Westerly

    64/100CR Score

    Ranked #1 because of its Google rating and trade focus: 4.8★ from 43 Google reviews, listed on Google as “Septic system service”.

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

    • 4.8★ from 43 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    Westerly, RI 02891
  2. Based in East Greenwich, 21 mi away

    62/100CR Score

    Ranked #2 because of its Google rating and trade focus: 5.0★ from 123 Google reviews, listed on Google as “Septic system service”.

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

    • 5.0★ from 123 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
  3. Based in Westerly

    61/100CR Score

    Ranked #4 because of its Google rating and trade focus: 4.8★ from 13 Google reviews, listed on Google as “Septic system service”.

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

    • 4.8★ from 13 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    235 Westerly Bradford Rd, Westerly, RI 02891
  4. Based in Plainfield, 22 mi away

    59/100CR Score

    Ranked #6 because of its Google rating and trade focus: 5.0★ from 40 Google reviews, listed on Google as “Septic system service”.

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

    • 5.0★ from 40 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    26 Gibson Hill Rd, Sterling, CT 06377
  5. Based in Warwick, 21 mi away

    58/100CR Score

    Ranked #8 because of its Google rating and trade focus: 4.4★ from 57 Google reviews, listed on Google as “Septic system service”.

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

    • 4.4★ from 57 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
  6. Based in Waterford, 17 mi away

    57/100CR Score

    Ranked #9 because of its Google rating and trade focus: 5.0★ from 91 Google reviews, listed on Google as “Septic system service”.

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

    • 5.0★ from 91 Google reviews
    Hours
    Mon–Wed 7:30 AM–5 PM · Thu 7:30 AM–4 PM · Fri 7:30 AM–5 PM · Sat–Sun closed
    Address
    132 Cross Rd C-1, Waterford, CT 06385
  7. Based in Ledyard, 12 mi away

    57/100CR Score

    Ranked #10 because of its Google rating and trade focus: 4.9★ from 32 Google reviews, listed on Google as “Septic system service”.

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

    • 4.9★ from 32 Google reviews
    Hours
    Mon–Fri 8 AM–4:30 PM · Sat 8 AM–12 PM · Sun closed
    Address
    661 CT-165, Preston, CT 06365
  8. Based in Norwich, 18 mi away

    57/100CR Score

    Ranked #11 because of its Google rating and trade focus: 4.8★ from 123 Google reviews, listed on Google as “Septic system service”.

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

    • 4.8★ from 123 Google reviews
    Hours
    Mon–Fri 8 AM–4 PM · Sat–Sun closed
    Address
    4 N 5th Ave, Taftville, CT 06380
  9. Based in South Kingstown, 19 mi away

    57/100CR Score

    Ranked #12 because of its Google rating and trade focus: 4.9★ from 44 Google reviews, listed on Google as “Septic system service”.

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

    • 4.9★ from 44 Google reviews
    Address
    112B Stony Fort Rd, Saunderstown, RI 02874
  10. Based in Waterford, 23 mi away

    57/100CR Score

    Ranked #13 because of its Google rating and trade focus: 4.7★ from 50 Google reviews, listed on Google as “Septic system service”.

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

    • 4.7★ from 50 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    4 Colton Rd, East Lyme, CT 06333
  11. Based in South Kingstown, 9 mi away

    57/100CR Score

    Ranked #14 because of its Google rating and trade focus: 3.5★ from 8 Google reviews, listed on Google as “Septic system service”.

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

    • 3.5★ from 8 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
  12. Based in Conning Towers-Nautilus Park, 9 mi away

    57/100CR Score

    Ranked #16 because of its Google rating and review volume: 4.9★ from 161 Google reviews, the most in Westerly.

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

    • 4.9★ from 161 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat–Sun closed
    Address
    800 Flanders Rd Unit 4–2, Mystic, CT 06355
  13. Based in Windham, 22 mi away

    57/100CR Score

    Ranked #17 because of its Google rating and trade focus: 5.0★ from 32 Google reviews, listed on Google as “Septic system service”.

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

    • 5.0★ from 32 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat–Sun 9 AM–1 PM
  14. Based in Norwich, 4 mi away

    56/100CR Score

    Ranked #19 because of its Google rating and trade focus: 4.6★ from 27 Google reviews, listed on Google as “Septic system service”.

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

    • 4.6★ from 27 Google reviews
    Hours
    Mon–Fri 8 AM–4 PM · Sat–Sun closed
    Address
    189 Norwich-Westerly Rd, North Stonington, CT 06359
  15. Based in Coventry, 21 mi away

    56/100CR Score

    Ranked #21 because of its Google rating and trade focus: 4.9★ from 40 Google reviews, listed on Google as “Septic system service”.

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

    • 4.9★ from 40 Google reviews
    Hours
    Mon–Fri 7 AM–5 PM · Sat 7 AM–3 PM · Sun closed
  16. Based in West Greenwich, 18 mi away

    55/100CR Score

    Ranked #23 because of its Google rating and trade focus: 4.3★ from 51 Google reviews, listed on Google as “Septic system service”.

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

    • 4.3★ from 51 Google reviews
    Hours
    Mon–Sat 8 AM–5 PM · Sun closed
    Address
    33 Arnold Farm Rd, West Greenwich, RI 02817

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

septic service companies in Westerly, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26A & C Site and Septic Contractors544.1★ (16)21 mi
27Rhode Island Septic Design and Installations, Inc.544.6★ (37)17 mi
28Francis L Strmiska Inc544.9★ (20)23 mi
29Medina Sewer & Drain Cleaning Services534.8★ (51)23 mi
30Westerly Sanitation534.8★ (10)8 mi
31Buttermore's534.6★ (18)14 mi
32C & J Construction & Septic LLC524.1★ (9)17 mi
33Durand Septic Designs & Services525.0★ (5)21 mi
34Mumford Services525.0★ (8)20 mi
35ASAP Sewer and Drain Cleaning 24/7 No Extra Charge!514.9★ (23)19 mi
36StarkWorks515.0★ (7)23 mi
37All-Ready Septic Pumping514.8★ (4)12 mi
38Signore Complete Septic Service514.0★ (8)23 mi
39CustomPro llc Basement Waterproofing, Septic, and drainage.505.0★ (23)16 mi
40George's Sewage Services503.8★ (9)15 mi
41ASAP Sewer & Drain Cleaning 24/7 no extra charge505.0★ (5)23 mi
42Ronnie's Central Sanitary Services504.2★ (5)24 mi
43Jay's Sewer Rooter504.0★ (12)15 mi
44Deedy Construction Company, Inc485.0★ (7)16 mi
45SepticWorks484.3★ (6)23 mi
46Sacco Enterprises Inc474.3★ (11)5 mi
47S.R. Hume Excavation475.0★ (6)13 mi
48Angell Excavation & Septic Services475.0★ (5)21 mi
49Bob's Septic Tank Cleaning472.6★ (5)16 mi
50TLC Mini Storage And Landscaping464.0★ (41)23 mi

Also serving Westerly

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 Westerly septic service companies

We scored 56 Westerly 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 Westerly 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 Westerly: frequently asked questions

Who is the best septic service company in Westerly?

By CR Score, the highest-ranked septic service company in Westerly, RI is Macamaux Septic Pumping with a CR Score of 64/100. It has 4.8★ from 43 Google reviews. It is open 24/7. ProSeptic (#2) and New London County Septic & Excavation (#3) follow. We ranked 56 septic service companies on ten factors, last updated November 3, 2026.

How many septic service companies are there in Westerly?

ContractorsRanked ranks 56 septic service companies serving Westerly, RI. 2 of them are based in Westerly; 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 Westerly are open 24/7?

14 ranked septic service companies in Westerly post 24/7 hours. The highest-ranked are Macamaux Septic Pumping (#1), ProSeptic (#2) and New London County Septic & Excavation (#3). Hours come from each business's Google listing as of November 2026, so call to confirm.

Which septic service companies in Westerly work on weekends?

29 of 56 ranked septic service companies post Saturday hours and 18 post Sunday hours. The highest-ranked open Saturdays are Macamaux Septic Pumping (#1), ProSeptic (#2) and New London County Septic & Excavation (#3). Posted hours are office hours; crews may book weekend jobs separately.

What Google rating do Westerly septic service companies have?

The median Google rating among 56 rated septic service companies in Westerly is 4.8★, with a median of 19 reviews. Superior Sewer & Drain Service has the most, 161 reviews, and ranks #16. 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 Westerly count in this ranking?

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

  1. November 2026: CR Scores recalculated for 56 septic service companies serving Westerly.

More septic service companies and Westerly pages

Other trades in Westerly