63/100CR Score
Ranked #1 because of its Google rating and review volume: 4.9★ from 796 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Best Septic Service Companies in Wilmington, MA (2026)
89 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Wilmington: John's Sewer & Drain Cleaning, CR Score 63/100; 4.9★ from 796 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Spencer Plumbing Sewer and Drain Cleaning, posts 24/7 hours; ranked #2 of 89.
- 22
Most-reviewed: New Era Plumbing & HVAC, 1,003 Google reviews at 4.9★, the most of 89 ranked; ranked #22.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
89 Wilmington septic service companies are ranked here by CR Score, from ten published factors. 34 are open 24/7, 49 open Saturdays and 37 open Sundays, based on posted hours. The median Google rating is 4.9★ across 89 rated businesses.
Top 10 septic service companies in Wilmington at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | John's Sewer & Drain Cleaning | 63 | 4.9★ (796) | Woburn, 2 mi away | 24/7 | Overall |
| 2 | Spencer Plumbing Sewer and Drain Cleaning | 61 | 4.9★ (839) | Peabody, 13 mi away | 24/7 | Emergencies |
| 3 | Waste Warriors | 61 | 5.0★ (23) | South Boston, 2 mi away | 24/7 | — |
| 4 | Wayne's Drains | 60 | 4.3★ (59) | Burlington, 3 mi away | 24/7 | — |
| 5 | Sewer Bros. | 60 | 5.0★ (172) | Andover, 6 mi away | 24/7 | — |
| 6 | Fairbank Septic Pumping LLC | 59 | 4.9★ (93) | Sudbury, 18 mi away | 24/7 | — |
| 7 | Bateson Enterprises Inc | 59 | 4.6★ (27) | Andover, 7 mi away | 24/7 | — |
| 8 | Rhino Rooter | 59 | 5.0★ (25) | Boston, 10 mi away | 24/7 | — |
| 9 | Woburn Drains & Sewer | 59 | 4.8★ (32) | Boston, 10 mi away | 24/7 | — |
| 10 | Chongris Engineering LLC | 58 | 5.0★ (16) | Andover, 9 mi away | 24/7 | — |
The 89 best septic service companies in Wilmington, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Based in Peabody, 13 mi away
61/100CR ScoreRanked #2 because of its Google rating and review volume: 4.9★ from 839 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in South Boston, 2 mi away
61/100CR ScoreRanked #3 because of its Google rating and trade focus: 5.0★ from 23 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Burlington, 3 mi away
60/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.3★ from 59 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#5 Sewer Bros.
Based in Andover, 6 mi away
60/100CR ScoreRanked #5 because of its Google rating and review volume: 5.0★ from 172 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Sudbury, 18 mi away
59/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.9★ from 93 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Andover, 7 mi away
59/100CR ScoreRanked #7 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.
#8 Rhino Rooter
Based in Boston, 10 mi away
59/100CR ScoreRanked #8 because of its Google rating and trade focus: 5.0★ from 25 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Boston, 10 mi away
59/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.8★ from 32 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Andover, 9 mi away
58/100CR ScoreRanked #10 because of its Google rating and trade focus: 5.0★ 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 Arlington, 19 mi away
58/100CR ScoreRanked #11 because of its Google rating and review volume: 4.9★ from 493 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Stow, 18 mi away
58/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.7★ from 77 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Salem, 16 mi away
58/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.9★ from 96 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#14 Curtis Septic
Based in Leominster, 15 mi away
57/100CR ScoreRanked #14 because of its Google rating and trade focus: 5.0★ from 21 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#15 Charles Roux Llc
Based in Lowell, 2 mi away
57/100CR ScoreRanked #15 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in South Boston, 17 mi away
57/100CR ScoreRanked #16 because of its Google rating and trade focus: 5.0★ from 42 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Salem, 14 mi away
57/100CR ScoreRanked #17 because of its Google rating and review volume: 4.8★ from 125 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
#18 Rooterman
Based in Billerica, 5 mi away
56/100CR ScoreRanked #18 because of its Google rating and review volume: 5.0★ from 364 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Burlington, 5 mi away
56/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.9★ from 19 Google reviews, listed on Google as “Contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#20 Rooter Man
Based in Lawrence, 11 mi away
56/100CR ScoreRanked #20 because of its Google rating and review volume: 5.0★ from 118 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Westford, 11 mi away
56/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.4★ from 20 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Dracut, 12 mi away
56/100CR ScoreRanked #22 because of its Google rating and review volume: 4.9★ from 1,003 Google reviews, the most in Wilmington.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in North Reading, 5 mi away
56/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “Septic system service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
#24 R M Ratta Corp
Based in Fitchburg, 18 mi away
56/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.9★ from 204 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Acton, 14 mi away
55/100CR ScoreRanked #25 because of its Google rating and review volume: 4.8★ from 290 Google reviews.
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 89 ranked septic service companies here; the rest are on their profiles.
Also serving Wilmington
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 |
|---|---|---|
| ABC Plumbing Drain Sewer Clng | 5.0★ (1) | 3 mi |
| Al's Septic & Excavation | 3.0★ (2) | 24 mi |
| Backyard Solutions LLC | 7 mi | |
| Borough Sewer Services | 4.0★ (1) | 16 mi |
| Cutler Contracting, Inc. | 5.0★ (1) | 17 mi |
| D&M Masonry & Construction | 5.0★ (1) | 13 mi |
| E A Comeau Septic | 5.0★ (1) | 15 mi |
| G. Nichols Construction Co., Inc | 5.0★ (2) | 16 mi |
| Independent Drain Inspections | 2 mi | |
| J.Chongris and Son's Enterprises | 2 mi | |
| Jb North Shore Construction | 2 mi | |
| Land Engineering & Envrmntl | 5.0★ (2) | 14 mi |
| Medford Sewer Shop | 5.0★ (1) | 10 mi |
| NorthEast Classic Builders | 1.0★ (1) | 16 mi |
| Quick Fix Septic | 10 mi | |
| QUIRK Real Estate Sales, Development and Construction | 3.0★ (2) | 24 mi |
| Raggs Septic Service | 1.0★ (1) | 23 mi |
| Stewart Septic Services | 3.0★ (2) | 17 mi |
| Trufant Industries, Inc. | 5.0★ (2) | 24 mi |
| Wind River Environmental of Gloucester, MA | 5.0★ (1) | 15 mi |
How we ranked Wilmington septic service companies
We scored 89 Wilmington 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 2, 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 Wilmington 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 Wilmington: frequently asked questions
Who is the best septic service company in Wilmington?
By CR Score, the highest-ranked septic service company in Wilmington, MA is John's Sewer & Drain Cleaning with a CR Score of 63/100. It has 4.9★ from 796 Google reviews. It is open 24/7. Spencer Plumbing Sewer and Drain Cleaning (#2) and Waste Warriors (#3) follow. We ranked 89 septic service companies on ten factors, last updated November 2, 2026.
How many septic service companies are there in Wilmington?
ContractorsRanked ranks 89 septic service companies serving Wilmington, MA. Another 20 within 25 mi are listed but not ranked yet. Counts are as of November 2026.
Which septic service companies in Wilmington are open 24/7?
34 ranked septic service companies in Wilmington post 24/7 hours. The highest-ranked are John's Sewer & Drain Cleaning (#1), Spencer Plumbing Sewer and Drain Cleaning (#2) and Waste Warriors (#3). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Wilmington work on weekends?
49 of 89 ranked septic service companies post Saturday hours and 37 post Sunday hours. The highest-ranked open Saturdays are John's Sewer & Drain Cleaning (#1), Spencer Plumbing Sewer and Drain Cleaning (#2) and Waste Warriors (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Wilmington septic service companies have?
The median Google rating among 89 rated septic service companies in Wilmington is 4.9★, with a median of 16 reviews. New Era Plumbing & HVAC has the most, 1,003 reviews, and ranks #22. 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 Wilmington count in this ranking?
Yes, if they are within 25 mi of the Wilmington 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 Wilmington
- November 2026: CR Scores recalculated for 89 septic service companies serving Wilmington.
More septic service companies and Wilmington pages
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