561 plumbers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Smithtown: Roto-Rooter Plumbing & Water Cleanup, CR Score 65/100; 4.8★ from 1,199 Google reviews; open 24/7.
Best for emergencies (open 24/7): Mr. Rooter Plumbing of Long Island, posts 24/7 hours; ranked #2 of 561.
Most-reviewed: Universe Home Services, 6,771 Google reviews at 4.8★, the most of 561 ranked; ranked #48.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
561 Smithtown plumbers are ranked here by CR Score, from ten published factors. 232 are open 24/7, 370 open Saturdays and 279 open Sundays, based on posted hours. The median Google rating is 4.8★ across 561 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Roto-Rooter Plumbing & Water Cleanup | 65 | 4.8★ (1,199) | Smithtown | 24/7 | Overall |
| 2 | Mr. Rooter Plumbing of Long Island | 63 | 4.7★ (1,488) | Bayport, 6 mi away | 24/7 | Emergencies |
| 3 | 1-Tom-Plumber | 63 | 5.0★ (1,133) | Farmingdale, 13 mi away | 24/7 | — |
| 4 | ROTO 24/7 | 63 | 4.9★ (159) | Smithtown | 24/7 | — |
| 5 | Roto-Rooter Plumbing & Water Cleanup | 62 | 4.8★ (1,825) | Farmingdale, 13 mi away | 24/7 | — |
| 6 | Ray The Plumber | 62 | 4.8★ (1,580) | Bohemia, 7 mi away | Sat · Sun · Evenings | — |
| 7 | Zoom Drain & Cesspool | 62 | 4.9★ (1,030) | Bay Shore, 13 mi away | 24/7 | — |
| 8 | Order a Plumber Inc. | 62 | 4.9★ (945) | Islip Terrace, 8 mi away | Sat · Sun · Evenings | — |
| 9 | ZSL Plumbing | 61 | 4.9★ (153) | Ronkonkoma, 5 mi away | 24/7 | — |
| 10 | Snake The Drain - Plumbing & Drain Services | 61 | 4.9★ (472) | Commack, 6 mi away | 24/7 | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and trade focus: 4.8★ from 1,199 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bayport, 6 mi away
Ranked #2 because of its Google rating and trade focus: 4.7★ from 1,488 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Farmingdale, 13 mi away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 1,133 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Smithtown
Ranked #4 because of its Google rating and trade focus: 4.9★ from 159 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Farmingdale, 13 mi away
Ranked #5 because of its Google rating and trade focus: 4.8★ from 1,825 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bohemia, 7 mi away
Ranked #6 because of its Google rating and trade focus: 4.8★ from 1,580 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bay Shore, 13 mi away
Ranked #7 because of its Google rating and trade focus: 4.9★ from 1,030 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Islip Terrace, 8 mi away
Ranked #8 because of its Google rating and trade focus: 4.9★ from 945 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ronkonkoma, 5 mi away
Ranked #9 because of its Google rating and trade focus: 4.9★ from 153 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Commack, 6 mi away
Ranked #10 because of its Google rating and trade focus: 4.9★ from 472 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Deer Park, 10 mi away
Ranked #11 because of its Google rating and trade focus: 4.7★ from 696 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Deer Park, 9 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 175 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ronkonkoma, 6 mi away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 527 Google reviews, listed on Google as “Plumber”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Central Islip, 4 mi away
Ranked #14 because of its Google rating and trade focus: 4.8★ from 136 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Coram, 11 mi away
Ranked #15 because of its Google rating and trade focus: 4.9★ from 316 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Holbrook, 9 mi away
Ranked #16 because of its Google rating and trade focus: 4.9★ from 207 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Holtsville, 10 mi away
Ranked #17 because of its Google rating and trade focus: 4.9★ from 167 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Wantagh, 20 mi away
Ranked #18 because of its Google rating and trade focus: 4.8★ from 1,390 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Medford, 11 mi away
Ranked #19 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.
Based in Commack, 6 mi away
Ranked #20 because of its Google rating and trade focus: 4.9★ from 64 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in West Babylon, 12 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 126 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bethpage, 16 mi away
Ranked #22 because of its Google rating and trade focus: 4.9★ from 338 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Stratford, 22 mi away
Ranked #23 because of its Google rating and trade focus: 4.8★ from 1,306 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bohemia, 6 mi away
Ranked #24 because of its Google rating and trade focus: 4.9★ from 617 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Farmingdale, 15 mi away
Ranked #25 because of its Google rating and review volume: 4.8★ from 4,690 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
#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 561 ranked plumbers here; the rest are on their profiles.
20 more plumbers 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 |
|---|---|---|
| AAA Cesspool & Rooter Service Inc. | 4.0★ (37) | 2 mi |
| ABC Sewer Services Inc | 5.0★ (2) | 5 mi |
| Allied/All-City | 4.5★ (207) | 16 mi |
| Artco Construction INC | 5.0★ (2) | 3 mi |
| Crestivew Plumbing & Heating | 5.0★ (2) | 2 mi |
| D&L Plumbing & Heating Service | 5.0★ (2) | 13 mi |
| EXIT777 - Renovation and maintenance service | 5.0★ (2) | 8 mi |
| Ferme & Son Energy Corporation. | 5.0★ (2) | 5 mi |
| Five Aces Plumbing Heating Corp | 5.0★ (2) | 6 mi |
| Handymen of all trades | 5.0★ (2) | 7 mi |
| Island Cesspool Pumping | 5.0★ (2) | 13 mi |
| John Mc Laughlin Plumbing & Heating | 5.0★ (2) | 9 mi |
| Minutemen Sewer & Drain | 4.5★ (202) | 14 mi |
| Neighborhood Lawn Sprinklers | 5.0★ (2) | 12 mi |
| NYHandymanNow.com | 3.5★ (2) | 7 mi |
| Patrick Diamond Plumbing | 5.0★ (2) | 10 mi |
| Red Lion 24/7 Emergency Plumbing Heating & Drains | 5.0★ (104) | 18 mi |
| Smart Mechanic Hvac | 5.0★ (2) | 13 mi |
| Wenker's Plumbing Heating & Back | 3.5★ (2) | 11 mi |
| 诚实通管 纽约法拉盛通下水道 长岛通水管 通渠 更换热水炉 Honest Plumbing | 4.9★ (27) | 8 mi |
National price ranges in USD, not adjusted for Smithtown. Each row names its basis and the month we checked it.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Water heater replacement | $882 | $1,348 | $1,826 | Per unit, installed (unit plus labor); typical range of customer-reported jobs. US national range | October 2026 |
We scored 561 Smithtown plumbers 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 October 22, 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 Smithtown 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 |