Ranked #1 in King of Prussia
Based in Springfield, 10 mi away
Ranked #1 because of its Google rating and trade focus: 4.9★ from 477 Google reviews, listed on Google as “Septic system service”.
62 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in King of Prussia: Delaware Valley Septic, Sewer & Storm, CR Score 63/100; 4.9★ from 477 Google reviews; open 24/7.
Best for emergencies (open 24/7): TLC Drain, Sewer, and Water Cleanup, posts 24/7 hours; ranked #2 of 62.
Most-reviewed: Mattioni Plumbing, Heating & Cooling, 3,621 Google reviews at 4.8★, the most of 62 ranked; ranked #11.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
62 King of Prussia septic service companies are ranked here by CR Score, from ten published factors. 44 are open 24/7, 51 open Saturdays and 46 open Sundays, based on posted hours. The median Google rating is 4.9★ across 62 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Delaware Valley Septic, Sewer & Storm | 63 | 4.9★ (477) | Springfield, 10 mi away | 24/7 | Overall |
| 2 | TLC Drain, Sewer, and Water Cleanup | 62 | 4.8★ (800) | King of Prussia | 24/7 | Emergencies |
| 3 | Mattioni Plumbing, Heating & Cooling | 60 | 5.0★ (667) | King of Prussia | 24/7 | — |
| 4 | OnSite Management, Inc. | 59 | 4.9★ (83) | West Chester, 13 mi away | 24/7 | — |
| 5 | Preston Heckler Liquid Disposal LLC | 58 | 4.9★ (58) | Limerick, 13 mi away | 24/7 | — |
| 6 | Gray Brothers Septic Services & Portable Restrooms - Montgomery, Chester, Delaware and Philadelphia Counties | 58 | 4.5★ (47) | Phoenixville, 10 mi away | 24/7 | — |
| 7 | Mattioni Plumbing, Heating & Cooling | 58 | 5.0★ (493) | Phoenixville, 7 mi away | 24/7 | — |
| 8 | Wind River Environmental of Swedesboro, NJ | 57 | 5.0★ (138) | Pennsville, 24 mi away | 24/7 | — |
| 9 | McGovern Septic | 57 | 4.6★ (32) | West Chester, 11 mi away | 24/7 | — |
| 10 | John's Septic & Excavation | 57 | 5.0★ (7) | Trooper, 5 mi away | 24/7 | — |
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.
Ranked #1 in King of Prussia
Based in Springfield, 10 mi away
Ranked #1 because of its Google rating and trade focus: 4.9★ from 477 Google reviews, listed on Google as “Septic system service”.
Based in King of Prussia
Ranked #2 because of its Google rating and review volume: 4.8★ from 800 Google reviews.
Based in King of Prussia
Ranked #3 because of its Google rating and review volume: 5.0★ from 667 Google reviews.
Based in West Chester, 13 mi away
Ranked #4 because of its Google rating and trade focus: 4.9★ from 83 Google reviews, listed on Google as “Septic system service”.
Based in Limerick, 13 mi away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 58 Google reviews, listed on Google as “Septic system service”.
Based in Phoenixville, 10 mi away
Ranked #6 because of its Google rating and trade focus: 4.5★ from 47 Google reviews, listed on Google as “Septic system service”.
Based in Phoenixville, 7 mi away
Ranked #7 because of its Google rating and review volume: 5.0★ from 493 Google reviews.
Based in Pennsville, 24 mi away
Ranked #8 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, 11 mi away
Ranked #9 because of its Google rating and trade focus: 4.6★ from 32 Google reviews, listed on Google as “Septic system service”.
Based in Trooper, 5 mi away
Ranked #10 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Septic system service”.
Based in Downingtown, 17 mi away
Ranked #11 because of its Google rating and review volume: 4.8★ from 3,621 Google reviews, the most in King of Prussia.
Based in Coatesville, 22 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 1,278 Google reviews, listed on Google as “Septic system service”.
Based in Montgomeryville, 15 mi away
Ranked #13 because of its Google rating and trade focus: 4.6★ from 56 Google reviews, listed on Google as “Septic system service”.
Based in Philadelphia, 14 mi away
Ranked #14 because of its Google rating and trade focus: 4.6★ from 31 Google reviews, listed on Google as “Septic system service”.
Based in West Chester, 14 mi away
Ranked #15 because of its Google rating and trade focus: 4.8★ from 20 Google reviews, listed on Google as “Septic system service”.
Based in Norristown, 3 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 28 Google reviews, listed on Google as “Plumber”.
Based in Oreland, 11 mi away
Ranked #17 because of its Google rating and review volume: 4.9★ from 546 Google reviews.
Based in Limerick, 16 mi away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 20 Google reviews, listed on Google as “Septic system service”.
Based in Philadelphia, 19 mi away
Ranked #19 because of its Google rating and review volume: 4.7★ from 491 Google reviews.
Based in Hatboro, 20 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 195 Google reviews, listed on Google as “Plumber”.
Based in Hopatcong Hills, 15 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 12 Google reviews, listed on Google as “Septic system service”.
Based in King of Prussia
Ranked #22 because of its Google rating and trade focus: 5.0★ from 11 Google reviews, listed on Google as “Plumber”.
Based in Pennsauken, 20 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 163 Google reviews, listed on Google as “Plumber”.
Based in Downingtown, 16 mi away
Ranked #24 because of its Google rating and review volume: 4.9★ from 312 Google reviews.
Based in Collegeville, 5 mi away
Ranked #25 because of its Google rating and availability: 4.9★ from 47 Google reviews, open 24/7.
#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 62 ranked septic service companies here; the rest are on their profiles.
12 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) | 19 mi |
| Abbadusky Environmental Services | 5.0★ (1) | 15 mi |
| Aston-Mauger Contracting, Inc | 21 mi | |
| B Neil Gentry Excavating | 18 mi | |
| Earthcare | 21 mi | |
| Ingram's Drain & Sewer Cleaning | 14 mi | |
| Long Brothers Construction Services LLC | 22 mi | |
| Parker Wastewater Consulting, Inc. | 5.0★ (1) | 6 mi |
| Robbins Septic Service | 18 mi | |
| The Home Depot | 4.3★ (1,432) | In King of Prussia |
| Water Heaters Philadelphia | 15 mi | |
| Watson Plumbing & Heating Inc. | 5.0★ (2) | 24 mi |
We scored 62 King of Prussia 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 King of Prussia 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 |