62/100CR Score
Ranked #1 because of its Google rating and trade focus: 4.9★ from 908 Google reviews, listed on Google as “Septic system service”.
Best Septic Service Companies in Randolph, NJ (2026)
126 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Randolph: Wilson Services, CR Score 62/100; 4.9★ from 908 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): EarthCare, a Wind River Company, posts 24/7 hours; ranked #2 of 126.
- 6
Most-reviewed: Roto-Rooter, 3,480 Google reviews at 4.9★, the most of 126 ranked; ranked #6.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
126 Randolph septic service companies are ranked here by CR Score, from ten published factors. 58 are open 24/7, 90 open Saturdays and 73 open Sundays, based on posted hours. The median Google rating is 4.9★ across 126 rated businesses.
Top 10 septic service companies in Randolph at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Wilson Services | 62 | 4.9★ (908) | Sparta, 15 mi away | 24/7 | Overall |
| 2 | EarthCare, a Wind River Company | 61 | 4.8★ (261) | West Milford, 11 mi away | 24/7 | Emergencies |
| 3 | RDH Plumbing Sewer & Drain Specialist | 59 | 5.0★ (203) | Rockaway, 5 mi away | 24/7 | — |
| 4 | Zuidema Septic Services & Portable Toilets | 59 | 4.8★ (786) | Midland Park, 25 mi away | 24/7 | — |
| 5 | Ever-Green Inspection Services LLC | 59 | 4.9★ (693) | Sparta, 12 mi away | Sat | — |
| 6 | Roto-Rooter | 59 | 4.9★ (3,480) | East Hanover, 12 mi away | 24/7 | Most reviews |
| 7 | ATS Environmental | 59 | 4.9★ (274) | Sparta, 16 mi away | Sat · Sun · Evenings | — |
| 8 | Tiger Grease and Septic | 59 | 4.9★ (28) | Paterson, 8 mi away | 24/7 | — |
| 9 | 123 Sewer & Drain | 57 | 5.0★ (69) | Washington Heights, 20 mi away | 24/7 | — |
| 10 | Arrow Sewer and Drain | 57 | 4.9★ (848) | Middlesex, 20 mi away | 24/7 | — |
The 126 best septic service companies in Randolph, 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 West Milford, 11 mi away
61/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.8★ from 261 Google reviews, listed on Google as “Septic system service”.
Based in Rockaway, 5 mi away
59/100CR ScoreRanked #3 because of its Google rating and trade focus: 5.0★ from 203 Google reviews, listed on Google as “Plumber”.
Based in Midland Park, 25 mi away
59/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.8★ from 786 Google reviews, listed on Google as “Septic system service”.
Based in Sparta, 12 mi away
59/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.9★ from 693 Google reviews, listed on Google as “Septic system service”.
#6 Roto-Rooter
Based in East Hanover, 12 mi away
59/100CR ScoreRanked #6 because of its Google rating and review volume: 4.9★ from 3,480 Google reviews, the most in Randolph.
Based in Sparta, 16 mi away
59/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.9★ from 274 Google reviews, listed on Google as “Septic system service”.
Based in Paterson, 8 mi away
59/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.9★ from 28 Google reviews, listed on Google as “Septic system service”.
Based in Washington Heights, 20 mi away
57/100CR ScoreRanked #9 because of its Google rating and trade focus: 5.0★ from 69 Google reviews, listed on Google as “Septic system service”.
Based in Middlesex, 20 mi away
57/100CR ScoreRanked #10 because of its Google rating and review volume: 4.9★ from 848 Google reviews.
Based in Sparta, 14 mi away
57/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.9★ from 259 Google reviews, listed on Google as “Septic system service”.
Based in Landing, 6 mi away
57/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.8★ from 101 Google reviews, listed on Google as “Plumber”.
Based in Chatham, 13 mi away
57/100CR ScoreRanked #13 because of its Google rating and review volume: 4.8★ from 1,940 Google reviews.
Based in Cedar Grove, 10 mi away
57/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.9★ from 142 Google reviews, listed on Google as “Plumber”.
Based in Fairfield, 14 mi away
57/100CR ScoreRanked #15 because of its Google rating and trade focus: 5.0★ from 196 Google reviews, listed on Google as “Plumber”.
Based in Hopatcong, 11 mi away
57/100CR ScoreRanked #16 because of its Google rating and review volume: 5.0★ from 478 Google reviews.
Based in Fairfield, 16 mi away
57/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.9★ from 274 Google reviews, listed on Google as “Plumber”.
Based in Maplewood, 18 mi away
56/100CR ScoreRanked #18 because of its Google rating and trade focus: 5.0★ from 200 Google reviews, listed on Google as “Plumber”.
Based in Bridgewater, 12 mi away
55/100CR ScoreRanked #19 because of its Google rating and trade focus: 5.0★ from 49 Google reviews, listed on Google as “Plumber”.
Based in Wanaque, 21 mi away
55/100CR ScoreRanked #20 because of its Google rating and trade focus: 5.0★ from 152 Google reviews, listed on Google as “Plumber”.
Based in Hopatcong, 12 mi away
55/100CR ScoreRanked #21 because of its Google rating and review volume: 4.9★ from 259 Google reviews.
Based in Hopatcong, 10 mi away
55/100CR ScoreRanked #22 because of its Google rating and trade focus: 3.0★ from 6 Google reviews, listed on Google as “Septic system service”.
Based in Piscataway, 20 mi away
55/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.9★ from 149 Google reviews, listed on Google as “Plumber”.
Based in Budd Lake, 7 mi away
55/100CR ScoreRanked #24 because of its Google rating and trade focus: 5.0★ from 12 Google reviews, listed on Google as “Septic system service”.
#25 Sewer Surgeons
Based in Chatham, 13 mi away
55/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.9★ from 53 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 126 ranked septic service companies here; the rest are on their profiles.
Also serving Randolph
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 Little Falls | 5.0★ (2) | 23 mi |
| A A Sewer & Septic Inc | In Randolph | |
| Aaron Excavating & Associates | 5.0★ (2) | 6 mi |
| ABC PLUMBING & SEWERS | 5.0★ (2) | 19 mi |
| Able Tex Sewer Rooter | 3.0★ (2) | 25 mi |
| Advanced Septic Inspections | 5.0★ (2) | 16 mi |
| American Contractors | 3.0★ (2) | 4 mi |
| B Horstmann Septic Services LLC | 2.0★ (1) | 3 mi |
| Dover Sewer Department | 5.0★ (1) | 4 mi |
| Flow Pro Sewer and Drain Cleaning Professionals | 5.0★ (1) | 7 mi |
| Garden State Sewer & Drain | 5.0★ (2) | 21 mi |
| KCM Construction LLC | 4.0★ (2) | 17 mi |
| Morris County Septic Services | 5.0★ (1) | 10 mi |
| Norton Sewer & Drain Lake | 3.0★ (2) | 11 mi |
| Plainfield Sewer & Drain Corporation | 1.5★ (2) | 15 mi |
| Sure Flow Septic Inspections | 5.0★ (1) | 6 mi |
| T.P. Trezza Contracting Inc. | 5.0★ (2) | 22 mi |
| Teramax LLC | 3.0★ (2) | 4 mi |
| Texagon Septic Pumping | 5.0★ (2) | 10 mi |
| United Rentals - Reliable Onsite Services | 5.0★ (1) | 3 mi |
How we ranked Randolph septic service companies
We scored 126 Randolph 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 Randolph 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 Randolph: frequently asked questions
Who is the best septic service company in Randolph?
By CR Score, the highest-ranked septic service company in Randolph, NJ is Wilson Services with a CR Score of 62/100. It has 4.9★ from 908 Google reviews. It is open 24/7. EarthCare, a Wind River Company (#2) and RDH Plumbing Sewer & Drain Specialist (#3) follow. We ranked 126 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in Randolph?
ContractorsRanked ranks 126 septic service companies serving Randolph, NJ. Another 20 within 25 mi are listed but not ranked yet. Counts are as of November 2026.
Which septic service companies in Randolph are open 24/7?
58 ranked septic service companies in Randolph post 24/7 hours. The highest-ranked are Wilson Services (#1), EarthCare, a Wind River Company (#2) and RDH Plumbing Sewer & Drain Specialist (#3). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Randolph work on weekends?
90 of 126 ranked septic service companies post Saturday hours and 73 post Sunday hours. The highest-ranked open Saturdays are Wilson Services (#1), EarthCare, a Wind River Company (#2) and RDH Plumbing Sewer & Drain Specialist (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Randolph septic service companies have?
The median Google rating among 126 rated septic service companies in Randolph is 4.9★, with a median of 23 reviews. Roto-Rooter has the most, 3,480 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 Randolph count in this ranking?
Yes, if they are within 25 mi of the Randolph 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 Randolph
- November 2026: CR Scores recalculated for 126 septic service companies serving Randolph.
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