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Best Septic Service Companies in Niagara Falls, ON (2026)

36 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in Niagara Falls: Sewer-Man Drain Service St. Catharines, CR Score 64/100; 4.8★ from 114 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): Sewer pro plumbing, posts 24/7 hours; ranked #2 of 36.

  3. 2

    Most-reviewed: Sewer pro plumbing, 160 Google reviews at 5.0★, the most of 36 ranked; ranked #2.

Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank

36 Niagara Falls septic service companies are ranked here by CR Score, from ten published factors. 12 are open 24/7, 17 open Saturdays and 13 open Sundays, based on posted hours. The median Google rating is 4.8★ across 36 rated businesses.

Top 10 septic service companies in Niagara Falls at a glance

Top 10 septic service companies in Niagara Falls at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Sewer-Man Drain Service St. Catharines644.8★ (114)St. Catharines, 16 km away24/7Overall
2Sewer pro plumbing625.0★ (160)Fort Erie, 19 km away24/7Emergencies, Most reviews
3Brown's Septic Service594.8★ (16)Niagara Falls——
4Black Water Excavating & Septic Service Inc.584.5★ (61)Norfolk County, 23 km away——
5Reaman Septic Svc584.6★ (9)Niagara Falls——
6FlowRight Plumbing & Drain Services Thorold575.0★ (4)Thorold, 11 km away24/7—
7Plumber Niagara on the Lake575.0★ (4)St. Catharines, 14 km away24/7—
8Scott Best Sewer Services574.9★ (72)Welland, 18 km away——
9Advanced Sewer & Drain Cleaning564.7★ (117)Tonawanda, 20 km awaySat—
10Top Notch Sewer And Drain Cleaning564.8★ (34)Fort Erie, 26 km away24/7—

The 36 best septic service companies in Niagara Falls, ranked

Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.

  1. Ranked #1 in Niagara Falls

    Based in St. Catharines, 16 km away

    64/100CR Score

    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.

    • 4.8★ from 114 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    110 James St, St. Catharines, ON L2R 7E8
  2. Based in Fort Erie, 19 km away

    62/100CR Score

    Ranked #2 because of its Google rating and review volume: 5.0★ from 160 Google reviews, the most in Niagara Falls.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 5.0★ from 160 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
  3. Based in Niagara Falls

    59/100CR Score

    Ranked #3 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.

    • 4.8★ from 16 Google reviews
    Address
    5632 Logan Rd, Niagara Falls, ON L2G 0L2
  4. Based in Niagara Falls

    58/100CR Score

    Ranked #5 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.

    • 4.6★ from 9 Google reviews
    Address
    9788 McLeod Rd, Niagara Falls, ON L2H 0Z1
  5. Based in St. Catharines, 14 km away

    57/100CR Score

    Ranked #7 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.

    • 5.0★ from 4 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1567 Niagara Stone Rd unit 201, Niagara-on-the-Lake, ON L0S 1T0
  6. Based in St. Catharines, 12 km away

    55/100CR Score

    Ranked #12 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.

    • 3.7★ from 15 Google reviews
    Address
    1085 Concession 7 Rd, Niagara-on-the-Lake, ON L0S 1J0
  7. Based in St. Catharines, 21 km away

    55/100CR Score

    Ranked #14 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.

    • 5.0★ from 26 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    3810 Ninth St, St. Catharines, ON L2R 6P9
  8. Based in Port Colborne, 27 km away

    55/100CR Score

    Ranked #15 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.

    • 5.0★ from 4 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    215 Main St W unit 3, Port Colborne, ON L3K 3V7
  9. Based in Port Colborne, 27 km away

    55/100CR Score

    Ranked #16 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.

    • 4.6★ from 10 Google reviews
    Hours
    Mon–Fri 7 AM–6 PM · Sat–Sun 8 AM–4 PM
    Address
    Elm St, Port Colborne, ON L3K 5V5
  10. Based in St. Catharines, 18 km away

    54/100CR Score

    Ranked #17 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.

    • 4.4★ from 7 Google reviews
    Address
    2393 First Street Louth, St. Catharines, ON L2R 6P7
  11. Based in St. Catharines, 27 km away

    54/100CR Score

    Ranked #19 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.

    • 5.0★ from 20 Google reviews
    Hours
    Mon–Fri 8 AM–6 PM · Sat–Sun closed
    Address
    830 Chantler Rd, Fenwick, ON L0S 1C0
  12. Based in St. Catharines, 20 km away

    53/100CR Score

    Ranked #20 because of its Google rating and trade focus: 4.5★ from 8 Google reviews, listed on Google as “Septic system service”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.5★ from 8 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat 8 AM–1 PM · Sun closed
  13. Based in St. Catharines, 24 km away

    53/100CR Score

    Ranked #22 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.

    • 4.5★ from 25 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat–Sun closed
    Address
    909 Pleasant Beach Rd, Sherkston, ON L0S 1R0
  14. Based in Welland, 21 km away

    53/100CR Score

    Ranked #23 because of its Google rating and review volume: 5.0★ from 17 Google reviews.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 5.0★ from 17 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    51 Sparrow Dr, Welland, ON L3C 0A6
  15. Based in St. Catharines, 23 km away

    51/100CR Score

    Ranked #25 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Septic system service”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 5.0★ from 6 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    574 Canboro Rd, Fonthill, ON L0S 1E0

All 36 septic service companies

#1 to #25 are shown in full above. Here are #26 to #36, in CR Score order; each links to its profile.

septic service companies in Niagara Falls, ranks 26 to 36
RankBusinessCR ScoreGoogle ratingDistance
26Hero Plumbing Pelham515.0★ (6)19 km
27Innerunion504.6★ (22)In Niagara Falls
28United Rentals - Reliable Onsite Services504.2★ (22)40 km
29Louigi's Sewer & Drain Cleaning505.0★ (7)21 km
30NexFlow Plumbing Welland505.0★ (4)18 km
31Coney Excavation & Construction LLC504.8★ (18)19 km
32Palladino Excavating & Concrete494.7★ (27)16 km
33Delo Drain & Septic Services492.3★ (3)36 km
34Aquajet Sewer Service Corp483.7★ (3)19 km
35ATM Plumbing & Sewer Co453.3★ (7)40 km
36Jason Kelly Plumbing445.0★ (12)40 km

Also serving Niagara Falls

18 more septic service companies within 40 km that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.

How we ranked Niagara Falls septic service companies

We scored 36 Niagara Falls 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.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed fromIn Niagara Falls data
Reputation25%Google star rating, adjusted for how many reviews back itMeasured
Credentials15%Active state license, bond and workers’ comp on fileNot yet collected
Review volume10%Number of Google reviews, compared with the most-reviewed business on the listMeasured
Recency5%Share of reviews from the last 12 monthsNot yet collected
Availability5%Weekly open hours, Saturday, Sunday, 24/7 or same-dayMeasured
Trade focus10%How clearly the business does this trade (its Google category and name)Measured
Proximity5%Based in the city scores highest, less the farther away it isMeasured
Claimed profile10%The business has claimed its ContractorsRanked profile (free or paid earn the same)Measured
Partnered5%The business links to ContractorsRanked from its own website with our badge, checked periodicallyMeasured
ContractorsRanked reviews10%Verified customer reviews collected by ContractorsRanked: their rating and how many there areMeasured

Septic service companies in Niagara Falls: frequently asked questions

Who is the best septic service company in Niagara Falls?

By CR Score, the highest-ranked septic service company in Niagara Falls, ON is Sewer-Man Drain Service St. Catharines with a CR Score of 64/100. It has 4.8★ from 114 Google reviews. It is open 24/7. Sewer pro plumbing (#2) and Brown's Septic Service (#3) follow. We ranked 36 septic service companies on ten factors, last updated November 3, 2026.

How many septic service companies are there in Niagara Falls?

ContractorsRanked ranks 36 septic service companies serving Niagara Falls, ON. 5 of them are based in Niagara Falls; the rest serve it from nearby towns. Another 18 within 40 km are listed but not ranked yet. Counts are as of November 2026.

Which septic service companies in Niagara Falls are open 24/7?

12 ranked septic service companies in Niagara Falls post 24/7 hours. The highest-ranked are Sewer-Man Drain Service St. Catharines (#1), Sewer pro plumbing (#2) and FlowRight Plumbing & Drain Services Thorold (#6). Hours come from each business's Google listing as of November 2026, so call to confirm.

Which septic service companies in Niagara Falls work on weekends?

17 of 36 ranked septic service companies post Saturday hours and 13 post Sunday hours. The highest-ranked open Saturdays are Sewer-Man Drain Service St. Catharines (#1), Sewer pro plumbing (#2) and FlowRight Plumbing & Drain Services Thorold (#6). Posted hours are office hours; crews may book weekend jobs separately.

What Google rating do Niagara Falls septic service companies have?

The median Google rating among 36 rated septic service companies in Niagara Falls is 4.8★, with a median of 15 reviews. Sewer pro plumbing has the most, 160 reviews, and ranks #2. 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 Niagara Falls count in this ranking?

Yes, if they are within 40 km of the Niagara Falls city centre, 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 Niagara Falls

  1. November 2026: CR Scores recalculated for 36 septic service companies serving Niagara Falls.

More septic service companies and Niagara Falls pages

Other trades in Niagara Falls