64/100CR Score
Ranked #1 because of its Google rating and trade focus: 4.9★ from 477 Google reviews, listed on Google as “Septic system service”.
Best Septic Service Companies in Darby, PA (2026)
69 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Darby: Delaware Valley Septic, Sewer & Storm, CR Score 64/100; 4.9★ from 477 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Wind River Environmental of Swedesboro, NJ, posts 24/7 hours; ranked #2 of 69.
- 18
Most-reviewed: Mattioni Plumbing, Heating & Cooling, 3,621 Google reviews at 4.8★, the most of 69 ranked; ranked #18.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
69 Darby septic service companies are ranked here by CR Score, from ten published factors. 46 are open 24/7, 57 open Saturdays and 49 open Sundays, based on posted hours. The median Google rating is 4.9★ across 69 rated businesses.
Top 10 septic service companies in Darby at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Delaware Valley Septic, Sewer & Storm | 64 | 4.9★ (477) | Springfield, 5 mi away | 24/7 | Overall |
| 2 | Wind River Environmental of Swedesboro, NJ | 60 | 5.0★ (138) | Pennsville, 12 mi away | 24/7 | Emergencies |
| 3 | OnSite Management, Inc. | 58 | 4.9★ (83) | West Chester, 18 mi away | 24/7 | — |
| 4 | Mattioni Plumbing, Heating & Cooling | 57 | 5.0★ (667) | King of Prussia, 10 mi away | 24/7 | — |
| 5 | Segrest Sewers LLC | 57 | 5.0★ (163) | Pennsauken, 11 mi away | 24/7 | — |
| 6 | TLC Drain, Sewer, and Water Cleanup | 57 | 4.8★ (800) | King of Prussia, 17 mi away | 24/7 | — |
| 7 | Daniels Plumbing, Drain Cleaning , Sewer Repair of Philadelphia | 57 | 4.7★ (491) | Philadelphia, 13 mi away | 24/7 | — |
| 8 | McGovern Septic | 57 | 4.6★ (32) | West Chester, 12 mi away | 24/7 | — |
| 9 | Plumbing Boys | 57 | 4.6★ (31) | Philadelphia, 12 mi away | 24/7 | — |
| 10 | Preston Heckler Liquid Disposal LLC | 56 | 4.9★ (58) | Limerick, 22 mi away | 24/7 | — |
The 69 best septic service companies in Darby, 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 Pennsville, 12 mi away
60/100CR ScoreRanked #2 because of its Google rating and trade focus: 5.0★ from 138 Google reviews, listed on Google as “Septic system service”.
Based in West Chester, 18 mi away
58/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.9★ from 83 Google reviews, listed on Google as “Septic system service”.
Based in King of Prussia, 10 mi away
57/100CR ScoreRanked #4 because of its Google rating and review volume: 5.0★ from 667 Google reviews.
Based in Pennsauken, 11 mi away
57/100CR ScoreRanked #5 because of its Google rating and trade focus: 5.0★ from 163 Google reviews, listed on Google as “Plumber”.
Based in King of Prussia, 17 mi away
57/100CR ScoreRanked #6 because of its Google rating and review volume: 4.8★ from 800 Google reviews.
Based in Philadelphia, 13 mi away
57/100CR ScoreRanked #7 because of its Google rating and review volume: 4.7★ from 491 Google reviews.
Based in West Chester, 12 mi away
57/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.6★ from 32 Google reviews, listed on Google as “Septic system service”.
Based in Philadelphia, 12 mi away
57/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.6★ from 31 Google reviews, listed on Google as “Septic system service”.
Based in Limerick, 22 mi away
56/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.9★ from 58 Google reviews, listed on Google as “Septic system service”.
#11 The Sewer Kings
Based in Camden, 15 mi away
56/100CR ScoreRanked #11 because of its Google rating and trade focus: 5.0★ from 18 Google reviews, listed on Google as “Septic system service”.
Based in Glassboro, 16 mi away
56/100CR ScoreRanked #12 because of its Google rating and trade focus: 5.0★ from 159 Google reviews, listed on Google as “Plumber”.
Based in Williamstown, 19 mi away
56/100CR ScoreRanked #13 because of its Google rating and trade focus: 5.0★ from 22 Google reviews, listed on Google as “Septic system service”.
Based in Lansdowne, 2 mi away
56/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.9★ from 147 Google reviews, listed on Google as “Plumber”.
Based in West Chester, 17 mi away
56/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.8★ from 20 Google reviews, listed on Google as “Septic system service”.
Based in Oreland, 14 mi away
55/100CR ScoreRanked #16 because of its Google rating and review volume: 4.9★ from 546 Google reviews.
Based in Wilmington, 21 mi away
55/100CR ScoreRanked #17 because of its Google rating and trade focus: 5.0★ from 152 Google reviews, listed on Google as “Septic system service”.
Based in Downingtown, 24 mi away
55/100CR ScoreRanked #18 because of its Google rating and review volume: 4.8★ from 3,621 Google reviews, the most in Darby.
Based in Philadelphia, 10 mi away
55/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.2★ from 5 Google reviews, listed on Google as “Septic system service”.
Based in Hatboro, 21 mi away
55/100CR ScoreRanked #20 because of its Google rating and trade focus: 5.0★ from 195 Google reviews, listed on Google as “Plumber”.
Based in Philadelphia, 7 mi away
55/100CR ScoreRanked #21 because of its Google rating and review volume: 5.0★ from 106 Google reviews.
Based in Atco, 23 mi away
55/100CR ScoreRanked #22 because of its Google rating and trade focus: 5.0★ from 518 Google reviews, listed on Google as “Septic system service”.
Based in Montgomeryville, 25 mi away
55/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.6★ from 56 Google reviews, listed on Google as “Septic system service”.
Based in Claymont, 17 mi away
55/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.7★ from 178 Google reviews, listed on Google as “Plumber”.
#25 The Sewer Kings
Based in Atco, 21 mi away
55/100CR ScoreRanked #25 because of its Google rating and trade focus: 5.0★ from 15 Google reviews, listed on Google as “Septic system service”.
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 69 ranked septic service companies here; the rest are on their profiles.
Also serving Darby
14 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 |
|---|---|---|
| A G Sewer Repair, LLC | 4.0★ (1) | 13 mi |
| Abbadusky Environmental Services | 5.0★ (1) | 24 mi |
| Albert Brewin Septic Services | 5.0★ (1) | 18 mi |
| B Neil Gentry Excavating | 17 mi | |
| Barbara's Septic Cleaning | 19 mi | |
| Carey Excavating, Inc. | 24 mi | |
| Carneys Point Twp Sewerage | 17 mi | |
| Delaware Plumbing Professionals | 23 mi | |
| Ingram's Drain & Sewer Cleaning | 11 mi | |
| Joseph A. Cuzzupe & Company, INC. | 5.0★ (2) | 15 mi |
| Parker Wastewater Consulting, Inc. | 5.0★ (1) | 15 mi |
| South jersey sewer inspections | 18 mi | |
| Water Heaters Philadelphia | 9 mi | |
| Watson Plumbing & Heating Inc. | 5.0★ (2) | 25 mi |
How we ranked Darby septic service companies
We scored 69 Darby 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 Darby 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 Darby: frequently asked questions
Who is the best septic service company in Darby?
By CR Score, the highest-ranked septic service company in Darby, PA is Delaware Valley Septic, Sewer & Storm with a CR Score of 64/100. It has 4.9★ from 477 Google reviews. It is open 24/7. Wind River Environmental of Swedesboro, NJ (#2) and OnSite Management, Inc. (#3) follow. We ranked 69 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in Darby?
ContractorsRanked ranks 69 septic service companies serving Darby, PA. Another 14 within 25 mi are listed but not ranked yet. Counts are as of November 2026.
Which septic service companies in Darby are open 24/7?
46 ranked septic service companies in Darby post 24/7 hours. The highest-ranked are Delaware Valley Septic, Sewer & Storm (#1), Wind River Environmental of Swedesboro, NJ (#2) and OnSite Management, Inc. (#3). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Darby work on weekends?
57 of 69 ranked septic service companies post Saturday hours and 49 post Sunday hours. The highest-ranked open Saturdays are Delaware Valley Septic, Sewer & Storm (#1), Wind River Environmental of Swedesboro, NJ (#2) and OnSite Management, Inc. (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Darby septic service companies have?
The median Google rating among 69 rated septic service companies in Darby is 4.9★, with a median of 25 reviews. Mattioni Plumbing, Heating & Cooling has the most, 3,621 reviews, and ranks #18. 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 Darby count in this ranking?
Yes, if they are within 25 mi of the Darby 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 Darby
- November 2026: CR Scores recalculated for 69 septic service companies serving Darby.
More septic service companies and Darby pages
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