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Best Septic Service Companies in Watertown, NY (2026)

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

The short answer

  1. 1

    Best overall in Watertown: Pomerville's Septic Services, Inc., CR Score 67/100; 4.8★ from 84 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): Gleason Septic and Drain Services, posts 24/7 hours; ranked #2 of 5.

  3. 3

    Most-reviewed: Desormo Excavation, 67 Google reviews at 5.0★, the most of 5 ranked after Pomerville's Septic Services, Inc.; ranked #3.

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

5 Watertown septic service companies are ranked here by CR Score, from ten published factors. 2 are open 24/7, 3 open Saturdays and 2 open Sundays, based on posted hours. The median Google rating is 4.6★ across 5 rated businesses.

Top 5 septic service companies in Watertown at a glance

Top 5 septic service companies in Watertown at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Pomerville's Septic Services, Inc.674.8★ (84)Watertown24/7Overall
2Gleason Septic and Drain Services644.6★ (32)Watertown24/7Emergencies
3Desormo Excavation585.0★ (67)WatertownSat · EveningsMost reviews
4Gregg's Sewer & Drain Services574.4★ (33)Watertown——
5Fargo's Sewer & Drain534.6★ (10)Fort Drum, 8 mi away——

The 5 best septic service companies in Watertown, ranked

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

  3. #3 Desormo Excavation

    Based in Watertown

    58/100CR Score

    Ranked #3 because of its Google rating and review volume: 5.0★ from 67 Google reviews.

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

    • 5.0★ from 67 Google reviews
    Hours
    Mon–Sat 9 AM–9 PM · Sun closed
    Address
    20682 Weaver Rd, Watertown, NY 13601
    View profile for Desormo Excavation(315) 783-2014

  5. #5 Fargo's Sewer & Drain

    Based in Fort Drum, 8 mi away

    53/100CR Score

    Ranked #5 because of its Google rating and trade focus: 4.6★ from 10 Google reviews, listed on Google as “Plumber”.

    Based on 7 of 10 factors; credentials, recency and availability not yet collected.

    • 4.6★ from 10 Google reviews
    Address
    23325 Fernwood Dr, Black River, NY 13612
    View profile for Fargo's Sewer & Drain(315) 777-7235

How we ranked Watertown septic service companies

We scored 5 Watertown 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 Watertown 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 Watertown: frequently asked questions

Who is the best septic service company in Watertown?

By CR Score, the highest-ranked septic service company in Watertown, NY is Pomerville's Septic Services, Inc. with a CR Score of 67/100. It has 4.8★ from 84 Google reviews. It is open 24/7. Gleason Septic and Drain Services (#2) and Desormo Excavation (#3) follow. We ranked 5 septic service companies on ten factors, last updated November 3, 2026.

How many septic service companies are there in Watertown?

ContractorsRanked ranks 5 septic service companies serving Watertown, NY. 4 of them are based in Watertown; the rest serve it from nearby towns. Counts are as of November 2026.

Which septic service companies in Watertown are open 24/7?

2 ranked septic service companies in Watertown post 24/7 hours. The highest-ranked are Pomerville's Septic Services, Inc. (#1) and Gleason Septic and Drain Services (#2). Hours come from each business's Google listing as of November 2026, so call to confirm.

Which septic service companies in Watertown work on weekends?

3 of 5 ranked septic service companies post Saturday hours and 2 post Sunday hours. The highest-ranked open Saturdays are Pomerville's Septic Services, Inc. (#1), Gleason Septic and Drain Services (#2) and Desormo Excavation (#3). Posted hours are office hours; crews may book weekend jobs separately.

What Google rating do Watertown septic service companies have?

The median Google rating among 5 rated septic service companies in Watertown is 4.6★, with a median of 33 reviews. Pomerville's Septic Services, Inc. has the most, 84 reviews, and ranks #1. 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 Watertown count in this ranking?

Yes, if they are within 25 mi of the Watertown 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 Watertown

  1. November 2026: CR Scores recalculated for 5 septic service companies serving Watertown.

More septic service companies and Watertown pages