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Best Septic Service Companies in Nesconset, NY (2026)

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

The short answer

  1. 1

    Best overall in Nesconset: Affordable Cesspool Sewer & Drain | Septic & Grease Trap Service - Long Island, CR Score 66/100; 4.9★ from 699 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): Four Seasons Cesspool, posts 24/7 hours; ranked #2 of 166.

  3. 20

    Most-reviewed: Mr. Rooter Plumbing of Long Island, 1,488 Google reviews at 4.7★, the most of 166 ranked; ranked #20.

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

166 Nesconset septic service companies are ranked here by CR Score, from ten published factors. 99 are open 24/7, 132 open Saturdays and 118 open Sundays, based on posted hours. The median Google rating is 4.9★ across 166 rated businesses.

Top 10 septic service companies in Nesconset at a glance

Top 10 septic service companies in Nesconset at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Affordable Cesspool Sewer & Drain | Septic & Grease Trap Service - Long Island664.9★ (699)Brentwood, 4 mi away24/7Overall
2Four Seasons Cesspool665.0★ (276)Nesconset24/7Emergencies
3Discount Cesspool & Drain Inc.654.9★ (481)Brentwood, 4 mi away24/7—
4Reputable Cesspool & Drain645.0★ (147)Smithtown, 1 mi away24/7—
5White Wolf Cesspool Services634.9★ (729)Commack, 5 mi away——
6AAA Dependable Cesspool, Sewer & Drain Service Inc.634.9★ (92)Ronkonkoma, 2 mi away24/7—
724/7 CESSPOOL SEPTIC SERVICE SUFFOLK COUNTY - Drastic Drainage Long Island624.8★ (132)West Babylon, 5 mi away24/7—
8SewerTech Cesspool & Drain625.0★ (134)Medford, 9 mi away24/7—
9Battlin' Barry's Cesspool Sewe624.9★ (121)Holbrook, 7 mi away24/7—
10Certified Cesspool Service Suffolk County | Cesspool Pumping Suffolk NY624.8★ (411)Stony Brook, 14 mi away24/7—

The 166 best septic service companies in Nesconset, ranked

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

  1. Ranked #1 in Nesconset

    Based in Brentwood, 4 mi away

    66/100CR Score

    Ranked #1 because of its Google rating and trade focus: 4.9★ from 699 Google reviews, listed on Google as “Septic system service”.

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

    • 4.9★ from 699 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    180 Blydenburgh Rd, Islandia, NY 11749
  2. Based in Nesconset

    66/100CR Score

    Ranked #2 because of its Google rating and trade focus: 5.0★ from 276 Google reviews, listed on Google as “Septic system service”.

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

    • 5.0★ from 276 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    169 Smithtown Blvd, Nesconset, NY 11767
  3. Based in Smithtown, 1 mi away

    64/100CR Score

    Ranked #4 because of its Google rating and trade focus: 5.0★ from 147 Google reviews, listed on Google as “Septic system service”.

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

    • 5.0★ from 147 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    769 Smithtown Bypass Unit A, Smithtown, NY 11787
  4. Based in Medford, 9 mi away

    62/100CR Score

    Ranked #8 because of its Google rating and trade focus: 5.0★ from 134 Google reviews, listed on Google as “Septic system service”.

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

    • 5.0★ from 134 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    91a Southaven Ave, Medford, NY 11763
  5. Based in Ronkonkoma, 5 mi away

    61/100CR Score

    Ranked #15 because of its Google rating and trade focus: 4.7★ from 196 Google reviews, listed on Google as “Septic system service”.

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

    • 4.7★ from 196 Google reviews
    Hours
    Mon–Sun 7 AM–10 PM
    Address
    847 11th St, Ronkonkoma, NY 11779
  6. Based in Centereach, 5 mi away

    60/100CR Score

    Ranked #16 because of its Google rating and trade focus: 4.9★ from 78 Google reviews, listed on Google as “Septic system service”.

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

    • 4.9★ from 78 Google reviews
    Hours
    Mon–Sun 7 AM–9 PM
    Address
    6 Arthur Ave, Centereach, NY 11720
  7. 60/100CR Score

    Ranked #17 because of its Google rating and trade focus: 4.6★ from 155 Google reviews, listed on Google as “Septic system service”.

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

    • 4.6★ from 155 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    55 Brook Ave, Deer Park, NY 11729
  8. Based in Coram, 2 mi away

    60/100CR Score

    Ranked #18 because of its Google rating and trade focus: 4.9★ from 108 Google reviews, listed on Google as “Septic system service”.

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

    • 4.9★ from 108 Google reviews
    Hours
    Mon–Sat 8 AM–7:30 PM · Sun closed
  9. Based in East Patchogue, 12 mi away

    58/100CR Score

    Ranked #23 because of its Google rating and trade focus: 4.8★ from 89 Google reviews, listed on Google as “Septic system service”.

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

    • 4.8★ from 89 Google reviews
    Hours
    Mon–Sun 12 AM–11:30 PM
    Address
    363 N Dunton Ave, East Patchogue, NY 11772

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 166 ranked septic service companies here; the rest are on their profiles.

septic service companies in Nesconset, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Payless Cesspool Sewer & Drain584.7★ (342)13 mi
2789.95 Sewer and Drainage575.0★ (18)13 mi
28Bill Mallins Cesspool Service Corp.574.7★ (15)4 mi
29Deep Impact Cesspool Service Inc574.4★ (53)8 mi
30Outback Cesspool Service574.8★ (20)13 mi
31Wilson's Plumbing Heating HVAC & Electric575.0★ (258)11 mi
32Edwards Sewer & Drains Inc574.8★ (76)11 mi
33Great River Cesspool Services564.0★ (4)4 mi
34ABC Sewer Service565.0★ (30)1 mi
35Rescue Cesspool & Drain564.8★ (136)4 mi
36The Cesspool and Drain Pro565.0★ (3)5 mi
37Coleman Cesspool Service564.7★ (26)10 mi
38AJS Cesspool Services564.8★ (24)6 mi
39Magic Cesspool Service Inc.564.4★ (14)6 mi
40FIX-A-LEAK Plumbing & Heating Inc. | Plumber, Sewer Repair, Water Heater Installation & Heating Services Bohemia, NY564.8★ (706)14 mi
41Ray's Cesspool & Line Cleaning565.0★ (3)6 mi
42Sal Manzo Plumbing, Heating & Cooling564.8★ (1,390)22 mi
43UNIVERSAL SEWER AND DRAIN LLC564.9★ (66)13 mi
44L & J Cesspool Service564.3★ (11)6 mi
45Mr. Pump564.3★ (86)7 mi
46Evergreen Custom Cesspool555.0★ (8)3 mi
47Suffolk Septic Services | Septic Tank Pumping Suffolk NY554.4★ (11)14 mi
48CMM Cesspool Services | Cesspool Pumping & Drain Cleaning555.0★ (6)13 mi
49East Coast Sewer & Drain555.0★ (41)12 mi
50Unlimited Excavation and Construction555.0★ (27)24 mi

Also serving Nesconset

20 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.

How we ranked Nesconset septic service companies

We scored 166 Nesconset 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 Nesconset 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 Nesconset: frequently asked questions

Who is the best septic service company in Nesconset?

By CR Score, the highest-ranked septic service company in Nesconset, NY is Affordable Cesspool Sewer & Drain | Septic & Grease Trap Service - Long Island with a CR Score of 66/100. It has 4.9★ from 699 Google reviews. It is open 24/7. Four Seasons Cesspool (#2) and Discount Cesspool & Drain Inc. (#3) follow. We ranked 166 septic service companies on ten factors, last updated November 3, 2026.

How many septic service companies are there in Nesconset?

ContractorsRanked ranks 166 septic service companies serving Nesconset, NY. 1 of them is based in Nesconset; the rest serve it from nearby towns. Another 20 within 25 mi are listed but not ranked yet. Counts are as of November 2026.

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

99 ranked septic service companies in Nesconset post 24/7 hours. The highest-ranked are Affordable Cesspool Sewer & Drain | Septic & Grease Trap Service - Long Island (#1), Four Seasons Cesspool (#2) and Discount Cesspool & Drain Inc. (#3). Hours come from each business's Google listing as of November 2026, so call to confirm.

Which septic service companies in Nesconset work on weekends?

132 of 166 ranked septic service companies post Saturday hours and 118 post Sunday hours. The highest-ranked open Saturdays are Affordable Cesspool Sewer & Drain | Septic & Grease Trap Service - Long Island (#1), Four Seasons Cesspool (#2) and Discount Cesspool & Drain Inc. (#3). Posted hours are office hours; crews may book weekend jobs separately.

What Google rating do Nesconset septic service companies have?

The median Google rating among 166 rated septic service companies in Nesconset is 4.9★, with a median of 20 reviews. Mr. Rooter Plumbing of Long Island has the most, 1,488 reviews, and ranks #20. 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 Nesconset count in this ranking?

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

  1. November 2026: CR Scores recalculated for 166 septic service companies serving Nesconset.
  2. November 2026: 3 duplicate listings merged.

More septic service companies and Nesconset pages

Other trades in Nesconset