62/100CR Score
Ranked #1 because of its Google rating and review volume: 5.0★ from 1,092 Google reviews.
Best Septic Service Companies in Iselin, NJ (2026)
214 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Iselin: PowerFlo Sewer Service, CR Score 62/100; 5.0★ from 1,092 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Arrow Sewer and Drain, posts 24/7 hours; ranked #2 of 214.
- 6
Most-reviewed: Pipe Works Services, Inc., 1,940 Google reviews at 4.8★, the most of 214 ranked; ranked #6.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
214 Iselin septic service companies are ranked here by CR Score, from ten published factors. 130 are open 24/7, 170 open Saturdays and 157 open Sundays, based on posted hours. The median Google rating is 4.9★ across 214 rated businesses.
Top 10 septic service companies in Iselin at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | PowerFlo Sewer Service | 62 | 5.0★ (1,092) | Staten Island, 10 mi away | 24/7 | Overall |
| 2 | Arrow Sewer and Drain | 60 | 4.9★ (848) | Middlesex, 10 mi away | 24/7 | Emergencies |
| 3 | NY Sewer and Drain | 60 | 5.0★ (65) | Staten Island, 12 mi away | 24/7 | — |
| 4 | Freedom Plumbing Heating and Sewer Service LLC | 59 | 4.9★ (255) | Rahway, 3 mi away | 24/7 | — |
| 5 | All Flow Sewer & Drain Service | 59 | 5.0★ (200) | Maplewood, 10 mi away | 24/7 | — |
| 6 | Pipe Works Services, Inc. | 59 | 4.8★ (1,940) | Chatham, 11 mi away | 24/7 | Most reviews |
| 7 | Edison Sewer & Drain Service | 58 | 4.9★ (149) | Piscataway, 7 mi away | 24/7 | — |
| 8 | Arrow Sewer and Drain | 58 | 4.8★ (122) | South Plainfield, 5 mi away | 24/7 | — |
| 9 | FlowMaster Sewer Services | 58 | 4.9★ (72) | Bloomfield, 4 mi away | 24/7 | — |
| 10 | Rapid Sewer and Septic Tank Cleaners | 58 | 4.0★ (88) | Staten Island, 6 mi away | 24/7 | — |
The 214 best septic service companies in Iselin, 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.
Based in Middlesex, 10 mi away
60/100CR ScoreRanked #2 because of its Google rating and review volume: 4.9★ from 848 Google reviews.
Based in Staten Island, 12 mi away
60/100CR ScoreRanked #3 because of its Google rating and trade focus: 5.0★ from 65 Google reviews, listed on Google as “Septic system service”.
Based in Rahway, 3 mi away
59/100CR ScoreRanked #4 because of its Google rating and review volume: 4.9★ from 255 Google reviews.
Based in Maplewood, 10 mi away
59/100CR ScoreRanked #5 because of its Google rating and review volume: 5.0★ from 200 Google reviews.
Based in Chatham, 11 mi away
59/100CR ScoreRanked #6 because of its Google rating and review volume: 4.8★ from 1,940 Google reviews, the most in Iselin.
Based in Piscataway, 7 mi away
58/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.9★ from 149 Google reviews, listed on Google as “Plumber”.
Based in South Plainfield, 5 mi away
58/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.8★ from 122 Google reviews, listed on Google as “Plumber”.
Based in Bloomfield, 4 mi away
58/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.9★ from 72 Google reviews, listed on Google as “HVAC contractor”.
Based in Staten Island, 6 mi away
58/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.0★ from 88 Google reviews, listed on Google as “Septic system service”.
Based in Brooklyn, 19 mi away
58/100CR ScoreRanked #11 because of its Google rating and review volume: 5.0★ from 401 Google reviews.
Based in Staten Island, 10 mi away
57/100CR ScoreRanked #12 because of its Google rating and trade focus: 5.0★ from 101 Google reviews, listed on Google as “Plumber”.
Based in Staten Island, 7 mi away
57/100CR ScoreRanked #13 because of its Google rating and trade focus: 5.0★ from 61 Google reviews, listed on Google as “Plumber”.
Based in Washington Heights, 23 mi away
57/100CR ScoreRanked #14 because of its Google rating and trade focus: 5.0★ from 69 Google reviews, listed on Google as “Septic system service”.
Based in Elizabeth, 9 mi away
57/100CR ScoreRanked #15 because of its Google rating and trade focus: 5.0★ from 75 Google reviews, listed on Google as “Plumber”.
Based in Staten Island, 7 mi away
57/100CR ScoreRanked #16 because of its Google rating and trade focus: 5.0★ from 55 Google reviews, listed on Google as “Plumber”.
Based in Brooklyn, 19 mi away
57/100CR ScoreRanked #17 because of its Google rating and review volume: 5.0★ from 304 Google reviews.
Based in Edison, 4 mi away
57/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.6★ from 59 Google reviews, listed on Google as “Septic system service”.
Based in Staten Island, 8 mi away
57/100CR ScoreRanked #19 because of its Google rating and trade focus: 5.0★ from 55 Google reviews, listed on Google as “Plumber”.
Based in Paterson, 17 mi away
57/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.9★ from 28 Google reviews, listed on Google as “Septic system service”.
Based in Brooklyn, 21 mi away
57/100CR ScoreRanked #21 because of its Google rating and review volume: 5.0★ from 326 Google reviews.
Based in Mountainside, 7 mi away
57/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.9★ from 146 Google reviews, listed on Google as “Plumber”.
Based in Great Kills, 9 mi away
56/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.9★ from 63 Google reviews, listed on Google as “Plumber”.
Based in Fairfield, 20 mi away
56/100CR ScoreRanked #24 because of its Google rating and trade focus: 5.0★ from 196 Google reviews, listed on Google as “Plumber”.
Based in Springfield, 9 mi away
56/100CR ScoreRanked #25 because of its Google rating and trade focus: 5.0★ from 44 Google reviews, listed on Google as “Plumber”.
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 214 ranked septic service companies here; the rest are on their profiles.
Also serving Iselin
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 |
|---|---|---|
| 911 Sewer & Drain of East Rutherford | 5.0★ (2) | 19 mi |
| 911 Sewer & Drain of Little Falls | 5.0★ (2) | 19 mi |
| A & J Sewer Specialists | 4.5★ (2) | 25 mi |
| A 49.95 Any Sewer Or Drain | 5.0★ (2) | 24 mi |
| ABC PLUMBING & SEWERS | 5.0★ (2) | 11 mi |
| Able Tex Sewer Rooter | 3.0★ (2) | 21 mi |
| Apollo Septic | 5.0★ (2) | 24 mi |
| Brother´s Sewer and Heating | 5.0★ (2) | 25 mi |
| Eagles Sewer & Drainage | 3.0★ (2) | 18 mi |
| Liberty Sewer Drain & Plumbing | 5.0★ (2) | 25 mi |
| New Jersey Sewer and Drain LLC | 5.0★ (1) | 5 mi |
| NJ Sewer & Drain Pro | 5.0★ (1) | 4 mi |
| Norton Sewer & Drain Lake | 3.0★ (2) | 21 mi |
| Plainfield Sewer & Drain Corporation | 1.5★ (2) | 9 mi |
| Reliable Septic Pumping Incorporated | 5.0★ (2) | 6 mi |
| Ridgewood Sewer & Drain Cleaning | 3.0★ (2) | 24 mi |
| Sewer King Co | 2.5★ (2) | 23 mi |
| South Brunswick Contracting | 5.0★ (2) | 17 mi |
| Sun Ray Sewer & Drain | 4.5★ (2) | 22 mi |
| T.P. Trezza Contracting Inc. | 5.0★ (2) | 14 mi |
How we ranked Iselin septic service companies
We scored 214 Iselin 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 Iselin 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 Iselin: frequently asked questions
Who is the best septic service company in Iselin?
By CR Score, the highest-ranked septic service company in Iselin, NJ is PowerFlo Sewer Service with a CR Score of 62/100. It has 5.0★ from 1,092 Google reviews. It is open 24/7. Arrow Sewer and Drain (#2) and NY Sewer and Drain (#3) follow. We ranked 214 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in Iselin?
ContractorsRanked ranks 214 septic service companies serving Iselin, NJ. Another 20 within 25 mi are listed but not ranked yet. Counts are as of November 2026.
Which septic service companies in Iselin are open 24/7?
130 ranked septic service companies in Iselin post 24/7 hours. The highest-ranked are PowerFlo Sewer Service (#1), Arrow Sewer and Drain (#2) and NY Sewer and Drain (#3). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Iselin work on weekends?
170 of 214 ranked septic service companies post Saturday hours and 157 post Sunday hours. The highest-ranked open Saturdays are PowerFlo Sewer Service (#1), Arrow Sewer and Drain (#2) and NY Sewer and Drain (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Iselin septic service companies have?
The median Google rating among 214 rated septic service companies in Iselin is 4.9★, with a median of 24 reviews. Pipe Works Services, Inc. has the most, 1,940 reviews, and ranks #6. 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 Iselin count in this ranking?
Yes, if they are within 25 mi of the Iselin 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 Iselin
- November 2026: CR Scores recalculated for 214 septic service companies serving Iselin.
More septic service companies and Iselin pages
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