62/100CR 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 Norristown, PA (2026)
60 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Norristown: Delaware Valley Septic, Sewer & Storm, CR Score 62/100; 4.9★ from 477 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): TLC Drain, Sewer, and Water Cleanup, posts 24/7 hours; ranked #2 of 60.
- 17
Most-reviewed: Mattioni Plumbing, Heating & Cooling, 3,621 Google reviews at 4.8★, the most of 60 ranked; ranked #17.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
60 Norristown septic service companies are ranked here by CR Score, from ten published factors. 42 are open 24/7, 50 open Saturdays and 44 open Sundays, based on posted hours. The median Google rating is 4.9★ across 60 rated businesses.
Top 10 septic service companies in Norristown at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Delaware Valley Septic, Sewer & Storm | 62 | 4.9★ (477) | Springfield, 12 mi away | 24/7 | Overall |
| 2 | TLC Drain, Sewer, and Water Cleanup | 61 | 4.8★ (800) | King of Prussia, 3 mi away | 24/7 | Emergencies |
| 3 | Preston Heckler Liquid Disposal LLC | 59 | 4.9★ (58) | Limerick, 10 mi away | 24/7 | — |
| 4 | Mattioni Plumbing, Heating & Cooling | 59 | 5.0★ (667) | King of Prussia, 6 mi away | 24/7 | — |
| 5 | OnSite Management, Inc. | 58 | 4.9★ (83) | West Chester, 17 mi away | 24/7 | — |
| 6 | George C Allen & Son Inc | 58 | 4.6★ (56) | Montgomeryville, 12 mi away | 24/7 | — |
| 7 | Gray Brothers Septic Services & Portable Restrooms - Montgomery, Chester, Delaware and Philadelphia Counties | 57 | 4.5★ (47) | Phoenixville, 11 mi away | 24/7 | — |
| 8 | John's Septic & Excavation | 57 | 5.0★ (7) | Trooper, 6 mi away | 24/7 | — |
| 9 | Longacre Plumbing, Drains, & Sewers | 57 | 5.0★ (28) | Norristown | 24/7 | — |
| 10 | Mattioni Plumbing, Heating & Cooling | 57 | 5.0★ (493) | Phoenixville, 9 mi away | 24/7 | — |
The 60 best septic service companies in Norristown, 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 King of Prussia, 3 mi away
61/100CR ScoreRanked #2 because of its Google rating and review volume: 4.8★ from 800 Google reviews.
Based in Limerick, 10 mi away
59/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.9★ from 58 Google reviews, listed on Google as “Septic system service”.
Based in King of Prussia, 6 mi away
59/100CR ScoreRanked #4 because of its Google rating and review volume: 5.0★ from 667 Google reviews.
Based in West Chester, 17 mi away
58/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.9★ from 83 Google reviews, listed on Google as “Septic system service”.
Based in Montgomeryville, 12 mi away
58/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.6★ from 56 Google reviews, listed on Google as “Septic system service”.
Based in Phoenixville, 11 mi away
57/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.5★ from 47 Google reviews, listed on Google as “Septic system service”.
Based in Trooper, 6 mi away
57/100CR ScoreRanked #8 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Septic system service”.
Based in Norristown
57/100CR ScoreRanked #9 because of its Google rating and trade focus: 5.0★ from 28 Google reviews, listed on Google as “Plumber”.
Based in Phoenixville, 9 mi away
57/100CR ScoreRanked #10 because of its Google rating and review volume: 5.0★ from 493 Google reviews.
#11 Plumbing Boys
Based in Philadelphia, 12 mi away
57/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.6★ from 31 Google reviews, listed on Google as “Septic system service”.
Based in Oreland, 8 mi away
57/100CR ScoreRanked #12 because of its Google rating and review volume: 4.9★ from 546 Google reviews.
Based in Hopatcong Hills, 11 mi away
57/100CR ScoreRanked #13 because of its Google rating and trade focus: 5.0★ from 12 Google reviews, listed on Google as “Septic system service”.
#14 McGovern Septic
Based in West Chester, 14 mi away
57/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.6★ from 32 Google reviews, listed on Google as “Septic system service”.
Based in Hatboro, 16 mi away
56/100CR ScoreRanked #15 because of its Google rating and trade focus: 5.0★ from 195 Google reviews, listed on Google as “Plumber”.
Based in Limerick, 16 mi away
56/100CR ScoreRanked #16 because of its Google rating and trade focus: 5.0★ from 20 Google reviews, listed on Google as “Septic system service”.
Based in Downingtown, 20 mi away
56/100CR ScoreRanked #17 because of its Google rating and review volume: 4.8★ from 3,621 Google reviews, the most in Norristown.
Based in Philadelphia, 17 mi away
56/100CR ScoreRanked #18 because of its Google rating and review volume: 4.7★ from 491 Google reviews.
Based in West Chester, 18 mi away
55/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.8★ from 20 Google reviews, listed on Google as “Septic system service”.
Based in Pennsauken, 19 mi away
55/100CR ScoreRanked #20 because of its Google rating and trade focus: 5.0★ from 163 Google reviews, listed on Google as “Plumber”.
Based in King of Prussia, 3 mi away
55/100CR ScoreRanked #21 because of its Google rating and trade focus: 5.0★ from 11 Google reviews, listed on Google as “Plumber”.
Based in Collegeville, 3 mi away
54/100CR ScoreRanked #22 because of its Google rating and availability: 4.9★ from 47 Google reviews, open 24/7.
Based in Philadelphia, 14 mi away
54/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.2★ from 5 Google reviews, listed on Google as “Septic system service”.
Based in Perkasie, 14 mi away
54/100CR ScoreRanked #24 because of its Google rating and review volume: 5.0★ from 405 Google reviews.
#25 The Sewer Kings
Based in Camden, 24 mi away
54/100CR ScoreRanked #25 because of its Google rating and trade focus: 5.0★ from 18 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 60 ranked septic service companies here; the rest are on their profiles.
Also serving Norristown
11 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) | 17 mi |
| Abbadusky Environmental Services | 5.0★ (1) | 18 mi |
| Aston-Mauger Contracting, Inc | 22 mi | |
| B Neil Gentry Excavating | 22 mi | |
| Earthcare | 22 mi | |
| Ingram's Drain & Sewer Cleaning | 12 mi | |
| Joseph A. Cuzzupe & Company, INC. | 5.0★ (2) | 24 mi |
| Long Brothers Construction Services LLC | 23 mi | |
| Parker Wastewater Consulting, Inc. | 5.0★ (1) | 10 mi |
| Robbins Septic Service | 16 mi | |
| Water Heaters Philadelphia | 13 mi |
How we ranked Norristown septic service companies
We scored 60 Norristown 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 Norristown 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 Norristown: frequently asked questions
Who is the best septic service company in Norristown?
By CR Score, the highest-ranked septic service company in Norristown, PA is Delaware Valley Septic, Sewer & Storm with a CR Score of 62/100. It has 4.9★ from 477 Google reviews. It is open 24/7. TLC Drain, Sewer, and Water Cleanup (#2) and Preston Heckler Liquid Disposal LLC (#3) follow. We ranked 60 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in Norristown?
ContractorsRanked ranks 60 septic service companies serving Norristown, PA. 2 of them are based in Norristown; the rest serve it from nearby towns. Another 11 within 25 mi are listed but not ranked yet. Counts are as of November 2026.
Which septic service companies in Norristown are open 24/7?
42 ranked septic service companies in Norristown post 24/7 hours. The highest-ranked are Delaware Valley Septic, Sewer & Storm (#1), TLC Drain, Sewer, and Water Cleanup (#2) and Preston Heckler Liquid Disposal LLC (#3). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Norristown work on weekends?
50 of 60 ranked septic service companies post Saturday hours and 44 post Sunday hours. The highest-ranked open Saturdays are Delaware Valley Septic, Sewer & Storm (#1), TLC Drain, Sewer, and Water Cleanup (#2) and Preston Heckler Liquid Disposal LLC (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Norristown septic service companies have?
The median Google rating among 60 rated septic service companies in Norristown is 4.9★, with a median of 21 reviews. Mattioni Plumbing, Heating & Cooling has the most, 3,621 reviews, and ranks #17. 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 Norristown count in this ranking?
Yes, if they are within 25 mi of the Norristown 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 Norristown
- November 2026: CR Scores recalculated for 60 septic service companies serving Norristown.
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