41 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Grand Island: Sewer-Man Drain Service St. Catharines, CR Score 62/100; 4.8★ from 114 Google reviews; open 24/7.
Best for emergencies (open 24/7): Sewer pro plumbing, posts 24/7 hours; ranked #2 of 41.
Most-reviewed: Sewer pro plumbing, 160 Google reviews at 5.0★, the most of 41 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
41 Grand Island septic service companies are ranked here by CR Score, from ten published factors. 13 are open 24/7, 21 open Saturdays and 15 open Sundays, based on posted hours. The median Google rating is 4.9★ across 41 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Sewer-Man Drain Service St. Catharines | 62 | 4.8★ (114) | St. Catharines, 17 mi away | 24/7 | Overall |
| 2 | Sewer pro plumbing | 62 | 5.0★ (160) | Fort Erie, 9 mi away | 24/7 | Emergencies, Most reviews |
| 3 | Advanced Sewer & Drain Cleaning | 58 | 4.7★ (117) | Tonawanda, 6 mi away | Sat | — |
| 4 | Brown's Septic Service | 58 | 4.8★ (16) | Niagara Falls, 6 mi away | — | — |
| 5 | Top Notch Sewer And Drain Cleaning | 57 | 4.8★ (34) | Fort Erie, 10 mi away | 24/7 | — |
| 6 | Black Water Excavating & Septic Service Inc. | 56 | 4.5★ (61) | Norfolk County, 20 mi away | — | — |
| 7 | Scott Best Sewer Services | 56 | 4.9★ (72) | Welland, 13 mi away | — | — |
| 8 | Empire Excavating and Septic | 56 | 5.0★ (38) | Eggertsville, 23 mi away | Sat · Evenings | — |
| 9 | FlowRight Plumbing & Drain Services Thorold | 55 | 5.0★ (4) | Thorold, 13 mi away | 24/7 | — |
| 10 | Plumber Niagara on the Lake | 55 | 5.0★ (4) | St. Catharines, 15 mi away | 24/7 | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Ranked #1 in Grand Island
Based in St. Catharines, 17 mi away
Ranked #1 because of its Google rating and trade focus: 4.8★ from 114 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Fort Erie, 9 mi away
Ranked #2 because of its Google rating and review volume: 5.0★ from 160 Google reviews, the most in Grand Island.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Tonawanda, 6 mi away
Ranked #3 because of its Google rating and review volume: 4.7★ from 117 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Niagara Falls, 6 mi away
Ranked #4 because of its Google rating and trade focus: 4.8★ from 16 Google reviews, listed on Google as “Septic system service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Fort Erie, 10 mi away
Ranked #5 because of its Google rating and review volume: 4.8★ from 34 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Norfolk County, 20 mi away
Ranked #6 because of its Google rating and trade focus: 4.5★ from 61 Google reviews, listed on Google as “Septic system service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Welland, 13 mi away
Ranked #7 because of its Google rating and review volume: 4.9★ from 72 Google reviews.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Eggertsville, 23 mi away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 38 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Thorold, 13 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in St. Catharines, 15 mi away
Ranked #10 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Niagara Falls, 10 mi away
Ranked #11 because of its Google rating and trade focus: 4.6★ from 9 Google reviews, listed on Google as “Septic system service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Port Colborne, 18 mi away
Ranked #12 because of its Google rating and trade focus: 4.6★ from 10 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Port Colborne, 17 mi away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Niagara Falls, 7 mi away
Ranked #14 because of its Google rating and review volume: 5.0★ from 15 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in St. Catharines, 13 mi away
Ranked #15 because of its Google rating and trade focus: 4.5★ 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 St. Catharines, 15 mi away
Ranked #16 because of its Google rating and trade focus: 3.7★ from 15 Google reviews, listed on Google as “Septic system service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Lancaster, 22 mi away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 8 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lackawanna, 19 mi away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 12 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in St. Catharines, 20 mi away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 26 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Grand Island
Ranked #20 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Plumber”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Port Colborne, 18 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 12 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Buffalo, 25 mi away
Ranked #22 because of its Google rating and trade focus: 4.3★ from 86 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Niagara Falls, 10 mi away
Ranked #23 because of its Google rating and review volume: 4.8★ from 48 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in St. Catharines, 21 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ 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 St. Catharines, 17 mi away
Ranked #25 because of its Google rating and trade focus: 4.4★ from 7 Google reviews, listed on Google as “Septic system service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
#1 to #25 are shown in full above. Here are #26 to #41, in CR Score order; each links to its profile.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | ExpressFlow Plumbers St. Catharines | 52 | 5.0★ (19) | 17 mi |
| 27 | Testa Excavating Inc | 52 | 4.5★ (8) | 19 mi |
| 28 | United Rentals - Reliable Onsite Services | 52 | 4.2★ (22) | 18 mi |
| 29 | Volpatti Mechanical | 52 | 5.0★ (17) | 17 mi |
| 30 | Granite Plumbing, HVAC & Septic | 52 | 5.0★ (11) | 23 mi |
| 31 | Palladino Excavating & Concrete | 51 | 4.7★ (27) | 4 mi |
| 32 | Delo Drain & Septic Services | 50 | 2.3★ (3) | 17 mi |
| 33 | Zwierschke Brothers Limited | 50 | 5.0★ (6) | 19 mi |
| 34 | Coney Excavation & Construction LLC | 50 | 4.8★ (18) | 13 mi |
| 35 | Aquajet Sewer Service Corp | 50 | 3.7★ (3) | 5 mi |
| 36 | John Stadelmier Septic Service, Inc. | 49 | 5.0★ (4) | 18 mi |
| 37 | Hero Plumbing Pelham | 49 | 5.0★ (6) | 16 mi |
| 38 | NexFlow Plumbing Welland | 49 | 5.0★ (4) | 15 mi |
| 39 | Innerunion | 48 | 4.6★ (22) | 9 mi |
| 40 | ATM Plumbing & Sewer Co | 47 | 3.3★ (7) | 18 mi |
| 41 | Jason Kelly Plumbing | 46 | 5.0★ (12) | 18 mi |
18 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 |
|---|---|---|
| Cecchini Plumbing | 5.0★ (1) | 6 mi |
| First Choice Septic Services | 11 mi | |
| Garofalo Sewer Cleaning | 9 mi | |
| J C Plumbing & Sewer Cleaning | 4 mi | |
| John Stadelmier Septic Service | 18 mi | |
| Johnston Pumping Service | 3.0★ (2) | 17 mi |
| JVS Services | 20 mi | |
| Niagara Drain Master | Plumber | Plumbing | 24 hour | 13 mi | |
| Niagara Falls Plumbing and Sewer | 8 mi | |
| North Star Land Service | 5.0★ (1) | 12 mi |
| Quality Plumbing & Sewer Cleaning | 12 mi | |
| Quality Plumbing Sewer Cleaning | 8 mi | |
| RL Xcavators | 19 mi | |
| Stadelmier John Septic Service | 18 mi | |
| T R Symonds Signature | 15 mi | |
| UDC Site Development Excavating, Demolition, Paving, Utilities and Septic Systems | 18 mi | |
| Ventry's Speedy Sewer Cleaning | 6 mi | |
| Zwierschke Brothers Limited | 20 mi |
We scored 41 Grand Island 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 Grand Island 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 |