63/100CR Score
Ranked #1 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.
Best Septic Service Companies in South Kingstown, RI (2026)
59 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in South Kingstown: ProSeptic, CR Score 63/100; 5.0★ from 123 Google reviews; open 24/7.
- 3
Best for emergencies (open 24/7): Friendly Septic, posts 24/7 hours; ranked #3 of 59.
- 8
Most-reviewed: Mr. Rooter Plumbing of Rhode Island, 1,027 Google reviews at 4.9★, the most of 59 ranked; ranked #8.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
59 South Kingstown septic service companies are ranked here by CR Score, from ten published factors. 16 are open 24/7, 35 open Saturdays and 21 open Sundays, based on posted hours. The median Google rating is 4.8★ across 59 rated businesses.
Top 10 septic service companies in South Kingstown at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | ProSeptic | 63 | 5.0★ (123) | East Greenwich, 8 mi away | 24/7 | Overall |
| 2 | Briggs Septic, Inc. | 59 | 4.9★ (44) | South Kingstown | — | — |
| 3 | Friendly Septic | 59 | 4.4★ (57) | Warwick, 8 mi away | 24/7 | Emergencies |
| 4 | South County Septic & Excavation Services | 59 | 5.0★ (8) | South Kingstown | 24/7 | — |
| 5 | Macamaux Septic Pumping | 58 | 4.8★ (43) | Westerly, 16 mi away | 24/7 | — |
| 6 | Macamaux Septic Pumping | 58 | 3.5★ (8) | South Kingstown | 24/7 | — |
| 7 | H&R Paving and Excavation, Inc | 57 | 4.6★ (36) | Hopkinton, 8 mi away | 24/7 | — |
| 8 | Mr. Rooter Plumbing of Rhode Island | 57 | 4.9★ (1,027) | Warwick, 21 mi away | 24/7 | Most reviews |
| 9 | Ocean State Cesspool | 57 | 4.9★ (40) | Coventry, 8 mi away | Sat | — |
| 10 | HAWKINS MAINTENANCE LLC. | 56 | 5.0★ (40) | Plainfield, 22 mi away | 24/7 | — |
The 59 best septic service companies in South Kingstown, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Based in South Kingstown
59/100CR ScoreRanked #2 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.
Based in Warwick, 8 mi away
59/100CR ScoreRanked #3 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.
Based in South Kingstown
59/100CR ScoreRanked #4 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.
Based in Westerly, 16 mi away
58/100CR ScoreRanked #5 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.
Based in South Kingstown
58/100CR ScoreRanked #6 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.
Based in Hopkinton, 8 mi away
57/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.6★ from 36 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Warwick, 21 mi away
57/100CR ScoreRanked #8 because of its Google rating and review volume: 4.9★ from 1,027 Google reviews, the most in South Kingstown.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Coventry, 8 mi away
57/100CR ScoreRanked #9 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.
Based in Plainfield, 22 mi away
56/100CR ScoreRanked #10 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.
Based in East Providence, 8 mi away
56/100CR ScoreRanked #11 because of its Google rating and trade focus: 3.7★ from 17 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Providence, 12 mi away
56/100CR ScoreRanked #12 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.
Based in Westerly, 14 mi away
56/100CR ScoreRanked #13 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.
Based in East Providence, 16 mi away
56/100CR ScoreRanked #14 because of its Google rating and trade focus: 5.0★ from 73 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Hopkinton, 12 mi away
56/100CR ScoreRanked #15 because of its Google rating and review volume: 5.0★ from 144 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in South Kingstown
56/100CR ScoreRanked #16 because of its Google rating and trade focus: 5.0★ from 19 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Hopkinton, 8 mi away
55/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.1★ from 16 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in West Warwick, 8 mi away
55/100CR ScoreRanked #18 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.
Based in Norwich, 23 mi away
54/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.8★ from 39 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Portsmouth, 16 mi away
54/100CR ScoreRanked #20 because of its Google rating and trade focus: 3.9★ from 11 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in West Greenwich, 13 mi away
54/100CR ScoreRanked #21 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.
#22 Mumford Services
Based in Exeter, 6 mi away
54/100CR ScoreRanked #22 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.
Based in Exeter, 11 mi away
53/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.6★ from 37 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Johnston, 24 mi away
52/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.7★ from 59 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ledyard, 22 mi away
52/100CR ScoreRanked #25 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.
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 59 ranked septic service companies here; the rest are on their profiles.
Also serving South Kingstown
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.
| Business | Google rating | Distance |
|---|---|---|
| Affordable Septic & Excavating llc | 5.0★ (1) | 5 mi |
| All Island Septic Services | 1.0★ (1) | 18 mi |
| Brennan Construction Septic | 5.0★ (1) | 24 mi |
| Eco Tech Supply Inc | 5.0★ (1) | 6 mi |
| Grenco Inc | 5 mi | |
| Haulin Oats Discount Septic Pumping | 5.0★ (1) | 8 mi |
| L.A. Patterson Inc. | 5.0★ (1) | 6 mi |
| LMD Septic Repair | 4.0★ (1) | 7 mi |
| Monster-Vac | 5.0★ (2) | 23 mi |
| Ocean State Sitework & Hauling LLC | 5.0★ (5) | In South Kingstown |
| Peter's Excavating & Landscape Construction LLC | 5.0★ (2) | 20 mi |
| Rick Gardner & Sons Inc | In South Kingstown | |
| Saviour's Sewer Drain & Septic | 5.0★ (1) | 23 mi |
| Septi-Cate Services | 1.0★ (1) | 19 mi |
| Septic Snooper | 1.0★ (1) | In South Kingstown |
| South County Cesspool | 5.0★ (1) | In South Kingstown |
| Stula Enterprises LLC | 5.0★ (1) | 23 mi |
| Tech 1 Plumbing & Heating | 1.0★ (1) | 22 mi |
| Tri - State Mechanical Services llc | 11 mi | |
| Wilcox Excavation & Development LLC. | 1.0★ (1) | 8 mi |
How we ranked South Kingstown septic service companies
We scored 59 South Kingstown 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.
| Factor | Weight | Computed from | In South Kingstown data |
|---|---|---|---|
| Reputation | 25% | Google star rating, adjusted for how many reviews back it | Measured |
| Credentials | 15% | Active state license, bond and workers’ comp on file | Not yet collected |
| Review volume | 10% | Number of Google reviews, compared with the most-reviewed business on the list | Measured |
| Recency | 5% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 5% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | How clearly the business does this trade (its Google category and name) | Measured |
| Proximity | 5% | Based in the city scores highest, less the farther away it is | Measured |
| Claimed profile | 10% | The business has claimed its ContractorsRanked profile (free or paid earn the same) | Measured |
| Partnered | 5% | The business links to ContractorsRanked from its own website with our badge, checked periodically | Measured |
| ContractorsRanked reviews | 10% | Verified customer reviews collected by ContractorsRanked: their rating and how many there are | Measured |
Septic service companies in South Kingstown: frequently asked questions
Who is the best septic service company in South Kingstown?
By CR Score, the highest-ranked septic service company in South Kingstown, RI is ProSeptic with a CR Score of 63/100. It has 5.0★ from 123 Google reviews. It is open 24/7. Briggs Septic, Inc. (#2) and Friendly Septic (#3) follow. We ranked 59 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in South Kingstown?
ContractorsRanked ranks 59 septic service companies serving South Kingstown, RI. 6 of them are based in South Kingstown; 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 South Kingstown are open 24/7?
16 ranked septic service companies in South Kingstown post 24/7 hours. The highest-ranked are ProSeptic (#1), Friendly Septic (#3) and South County Septic & Excavation Services (#4). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in South Kingstown work on weekends?
35 of 59 ranked septic service companies post Saturday hours and 21 post Sunday hours. The highest-ranked open Saturdays are ProSeptic (#1), Friendly Septic (#3) and South County Septic & Excavation Services (#4). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do South Kingstown septic service companies have?
The median Google rating among 59 rated septic service companies in South Kingstown is 4.8★, with a median of 13 reviews. Mr. Rooter Plumbing of Rhode Island has the most, 1,027 reviews, and ranks #8. 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 South Kingstown count in this ranking?
Yes, if they are within 25 mi of the South Kingstown 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 South Kingstown
- November 2026: CR Scores recalculated for 59 septic service companies serving South Kingstown.
More septic service companies and South Kingstown pages
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