483 plumbers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Derby: Rick's Plumbing Service, Inc., CR Score 66/100; 5.0★ from 1,157 Google reviews; open 24/7.
Best for emergencies (open 24/7): Mr. Rooter Plumbing of Southern Fairfield County, posts 24/7 hours; ranked #2 of 483.
Most-reviewed: Roto-Rooter Plumbing & Water Cleanup, 1,345 Google reviews at 4.7★, the most of 483 ranked; ranked #6.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
483 Derby plumbers are ranked here by CR Score, from ten published factors. 136 are open 24/7, 256 open Saturdays and 185 open Sundays, based on posted hours. The median Google rating is 4.9★ across 483 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Rick's Plumbing Service, Inc. | 66 | 5.0★ (1,157) | Milford, 7 mi away | 24/7 | Overall |
| 2 | Mr. Rooter Plumbing of Southern Fairfield County | 66 | 4.9★ (722) | Shelton, 3 mi away | 24/7 | Emergencies |
| 3 | Roto-Rooter Plumbing & Water Cleanup | 65 | 4.9★ (421) | Ansonia, 2 mi away | 24/7 | — |
| 4 | Bertola Plumbing & Heating | 64 | 5.0★ (570) | Trumbull, 9 mi away | 24/7 | — |
| 5 | Roto-Rooter Plumbing & Water Cleanup | 64 | 4.8★ (1,306) | Stratford, 11 mi away | 24/7 | — |
| 6 | Roto-Rooter Plumbing & Water Cleanup | 64 | 4.7★ (1,345) | New Haven, 9 mi away | 24/7 | Most reviews |
| 7 | Backflow Joe's | 63 | 5.0★ (329) | Greenburgh, 10 mi away | 24/7 | — |
| 8 | Duranko Plumbing LLC | 62 | 4.9★ (209) | Stratford, 8 mi away | 24/7 | — |
| 9 | Mr. Rooter Plumbing of South Central Connecticut | 62 | 4.9★ (742) | North Branford, 17 mi away | 24/7 | — |
| 10 | Al's Plumbing LLC | 62 | 4.7★ (131) | Shelton, 3 mi away | 24/7 | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Ranked #1 because of its Google rating and trade focus: 5.0★ from 1,157 Google reviews, listed on Google as “Plumber”.
Based in Shelton, 3 mi away
Ranked #2 because of its Google rating and trade focus: 4.9★ from 722 Google reviews, listed on Google as “Plumber”.
Based in Ansonia, 2 mi away
Ranked #3 because of its Google rating and trade focus: 4.9★ from 421 Google reviews, listed on Google as “Plumber”.
Based in Trumbull, 9 mi away
Ranked #4 because of its Google rating and trade focus: 5.0★ from 570 Google reviews, listed on Google as “Plumber”.
Based in Stratford, 11 mi away
Ranked #5 because of its Google rating and trade focus: 4.8★ from 1,306 Google reviews, listed on Google as “Plumber”.
Based in New Haven, 9 mi away
Ranked #6 because of its Google rating and trade focus: 4.7★ from 1,345 Google reviews, listed on Google as “Plumber”.
Based in Greenburgh, 10 mi away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 329 Google reviews, listed on Google as “Plumber”.
Based in Stratford, 8 mi away
Ranked #8 because of its Google rating and trade focus: 4.9★ from 209 Google reviews, listed on Google as “Plumber”.
Based in North Branford, 17 mi away
Ranked #9 because of its Google rating and trade focus: 4.9★ from 742 Google reviews, listed on Google as “Plumber”.
Based in Shelton, 3 mi away
Ranked #10 because of its Google rating and trade focus: 4.7★ from 131 Google reviews, listed on Google as “Plumber”.
Based in Trumbull, 6 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 99 Google reviews, listed on Google as “Plumber”.
Based in Stratford, 8 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 130 Google reviews, listed on Google as “Plumber”.
Based in Waterbury, 16 mi away
Ranked #13 because of its Google rating and trade focus: 4.8★ from 662 Google reviews, listed on Google as “Plumber”.
Based in Bethel, 13 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 540 Google reviews, listed on Google as “Plumber”.
Based in Stratford, 9 mi away
Ranked #15 because of its Google rating and trade focus: 4.9★ from 171 Google reviews, listed on Google as “Drainage service”.
Based in Bridgeport, 12 mi away
Ranked #16 because of its Google rating and trade focus: 4.9★ from 228 Google reviews, listed on Google as “Plumber”.
Based in Orange, 3 mi away
Ranked #17 because of its Google rating and trade focus: 4.9★ from 58 Google reviews, listed on Google as “Plumber”.
Based in Naugatuck, 12 mi away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 151 Google reviews, listed on Google as “Plumber”.
Based in Derby
Ranked #19 because of its Google rating and trade focus: 5.0★ from 71 Google reviews, listed on Google as “Plumber”.
Based in Bridgeport, 13 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 167 Google reviews, listed on Google as “Plumber”.
Based in Hamden, 11 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 115 Google reviews, listed on Google as “Plumber”.
Based in Easton, 15 mi away
Ranked #22 because of its Google rating and trade focus: 4.9★ from 311 Google reviews, listed on Google as “Plumber”.
Based in Danbury, 19 mi away
Ranked #23 because of its Google rating and trade focus: 4.8★ from 731 Google reviews, listed on Google as “Plumber”.
Based in Ansonia, 3 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 272 Google reviews, listed on Google as “Plumber”.
Based in Wallingford, 18 mi away
Ranked #25 because of its Google rating and trade focus: 4.8★ from 495 Google reviews, listed on Google as “Plumber”.
#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 483 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 |
|---|---|---|
| Alterio Drain Cleaning & More, LLC | 5.0★ (1) | In Derby |
| Authentic Plumbing LLC | 5.0★ (2) | 7 mi |
| Can Vacuum & Jet | 5.0★ (2) | 8 mi |
| Cavallaro Plumbing | 3.0★ (2) | 9 mi |
| Denton Plumbing & Cleaning | 4.6★ (10) | 7 mi |
| Fairfield County Plumbing Service and Repair | 5.0★ (2) | 5 mi |
| FC Waterworks LLC | 5.0★ (58) | 19 mi |
| First Choice Plumbing | 5.0★ (1) | In Derby |
| Halkowicz Plumbing and Drain cleaning LLC | In Derby | |
| Hope Plumbing | 4.8★ (32) | 14 mi |
| J T Collins Plumbing | 4.0★ (39) | 9 mi |
| Jacozzi Plumbing Heating & Cooling | 5.0★ (2) | 6 mi |
| Lone Wolf Plumbing | 5.0★ (2) | 8 mi |
| Mac Plumbing Services | 5.0★ (2) | 8 mi |
| Phillip's Home Repair | 5.0★ (2) | 11 mi |
| POLO Plumbing & Heating LLC | 5.0★ (2) | 9 mi |
| Quality Water Pump Co | In Derby | |
| Rick Sekelsky Plumbing & Heating | 5.0★ (2) | 5 mi |
| SOS Sewer & Drain Cleaning | 5.0★ (2) | 11 mi |
| The Plumbing Source | 5.0★ (2) | 7 mi |
National price ranges in USD, not adjusted for Derby. 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 |
In Connecticut, Connecticut Department of Consumer Protection licenses Plumbing work: water supply, drain, waste and vent piping and fixtures.
No chip usually means we have not matched a state record yet. Check the lookup yourself before you hire.
Guide checked October 2026. How we verify licenses
We scored 483 Derby 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 Derby 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 |