347 plumbers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Guilford: Mr. Rooter Plumbing of South Central Connecticut, CR Score 66/100; 4.9★ from 742 Google reviews; open 24/7.
Best for emergencies (open 24/7): Roto-Rooter Plumbing & Water Cleanup, posts 24/7 hours; ranked #2 of 347.
Most-reviewed: Roto-Rooter Plumbing & Water Cleanup, 1,345 Google reviews at 4.7★, the most of 347 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
347 Guilford plumbers are ranked here by CR Score, from ten published factors. 85 are open 24/7, 165 open Saturdays and 116 open Sundays, based on posted hours. The median Google rating is 4.9★ across 347 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Mr. Rooter Plumbing of South Central Connecticut | 66 | 4.9★ (742) | North Branford, 5 mi away | 24/7 | Overall |
| 2 | Roto-Rooter Plumbing & Water Cleanup | 64 | 4.7★ (1,345) | New Haven, 12 mi away | 24/7 | Emergencies, Most reviews |
| 3 | Rick's Plumbing Service, Inc. | 63 | 5.0★ (1,157) | Milford, 21 mi away | 24/7 | — |
| 4 | Z Plumberz of New Haven | 63 | 4.9★ (134) | Madison, 5 mi away | 24/7 | — |
| 5 | bluefrog Plumbing + Drain of Central Connecticut | 62 | 4.8★ (495) | Wallingford, 15 mi away | 24/7 | — |
| 6 | Roto-Rooter Plumbing & Water Cleanup | 62 | 4.8★ (687) | Meriden, 18 mi away | 24/7 | — |
| 7 | Roto-Rooter Plumbing & Water Cleanup | 62 | 4.8★ (414) | Guilford | 24/7 | — |
| 8 | Mr. Rooter Plumbing of Southern Fairfield County | 61 | 4.9★ (722) | Shelton, 24 mi away | 24/7 | — |
| 9 | Roto-Rooter Plumbing & Water Cleanup | 61 | 5.0★ (115) | Hamden, 13 mi away | 24/7 | — |
| 10 | Roto-Rooter Plumbing & Water Cleanup | 61 | 4.9★ (421) | Ansonia, 21 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 in Guilford
Based in North Branford, 5 mi away
Ranked #1 because of its Google rating and trade focus: 4.9★ from 742 Google reviews, listed on Google as “Plumber”.
Based in New Haven, 12 mi away
Ranked #2 because of its Google rating and review volume: 4.7★ from 1,345 Google reviews, the most in Guilford.
Based in Milford, 21 mi away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 1,157 Google reviews, listed on Google as “Plumber”.
Based in Madison, 5 mi away
Ranked #4 because of its Google rating and trade focus: 4.9★ from 134 Google reviews, listed on Google as “Plumber”.
Based in Wallingford, 15 mi away
Ranked #5 because of its Google rating and trade focus: 4.8★ from 495 Google reviews, listed on Google as “Plumber”.
Based in Meriden, 18 mi away
Ranked #6 because of its Google rating and trade focus: 4.8★ from 687 Google reviews, listed on Google as “Plumber”.
Based in Guilford
Ranked #7 because of its Google rating and review volume: 4.8★ from 414 Google reviews.
Based in Shelton, 24 mi away
Ranked #8 because of its Google rating and trade focus: 4.9★ from 722 Google reviews, listed on Google as “Plumber”.
Based in Hamden, 13 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 115 Google reviews, listed on Google as “Plumber”.
Based in Ansonia, 21 mi away
Ranked #10 because of its Google rating and trade focus: 4.9★ from 421 Google reviews, listed on Google as “Plumber”.
Based in Easton, 19 mi away
Ranked #11 because of its Google rating and trade focus: 4.9★ from 311 Google reviews, listed on Google as “Plumber”.
Based in Bristol, 15 mi away
Ranked #12 because of its Google rating and trade focus: 4.9★ from 171 Google reviews, listed on Google as “Plumber”.
Based in Old Saybrook, 16 mi away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 76 Google reviews, listed on Google as “Plumber”.
Based in Derby, 10 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 71 Google reviews, listed on Google as “Plumber”.
Based in Hamden, 13 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 42 Google reviews, listed on Google as “Plumber”.
Based in Branford, 4 mi away
Ranked #16 because of its Google rating and trade focus: 4.3★ from 27 Google reviews, listed on Google as “Plumber”.
Based in North Haven, 10 mi away
Ranked #17 because of its Google rating and trade focus: 4.9★ from 30 Google reviews, listed on Google as “Plumber”.
Based in Stratford, 25 mi away
Ranked #18 because of its Google rating and trade focus: 4.9★ from 209 Google reviews, listed on Google as “Plumber”.
Based in Wallingford, 15 mi away
Ranked #19 because of its Google rating and review volume: 4.8★ from 601 Google reviews.
Based in Naugatuck, 24 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 151 Google reviews, listed on Google as “Plumber”.
Based in Stratford, 24 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 130 Google reviews, listed on Google as “Plumber”.
Based in Meriden, 17 mi away
Ranked #22 because of its Google rating and trade focus: 4.9★ from 373 Google reviews, listed on Google as “Plumber”.
Based in Cromwell, 10 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 66 Google reviews, listed on Google as “Plumber”.
Based in Stratford, 25 mi away
Ranked #24 because of its Google rating and trade focus: 4.9★ from 171 Google reviews, listed on Google as “Drainage service”.
Based in Milford, 19 mi away
Ranked #25 because of its Google rating and trade focus: 4.9★ from 481 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 347 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 |
|---|---|---|
| 3D Mechanical LLC | 5.0★ (2) | 15 mi |
| Aqualogic Inc | 5.0★ (2) | 12 mi |
| BDM Mechanical | 5.0★ (1) | In Guilford |
| Best Connections | 5.0★ (2) | 6 mi |
| Cavallaro Plumbing | 3.0★ (2) | 14 mi |
| CG Remodel LLC | 5.0★ (2) | 15 mi |
| Denicola Plumbing | 5.0★ (2) | 14 mi |
| Devine Design Contractors PLLC | 5.0★ (2) | 12 mi |
| Fitzgerald & Wood Inc | 5.0★ (2) | 7 mi |
| Hebert Plumbing LLC | 5.0★ (2) | 8 mi |
| J C Kleinkauf Heating & Plumbing Inc | 3.0★ (2) | In Guilford |
| J T Collins Plumbing | 4.0★ (39) | 13 mi |
| John J Tratnyek Plumbing & Heating | 5.0★ (2) | 7 mi |
| Master Rooter: Sewer and Drain Cleaning Service | 4.5★ (15) | 19 mi |
| Munro Plumbing & Heating | 5.0★ (1) | In Guilford |
| North Haven Mechanical Contractors | 5.0★ (2) | 12 mi |
| POLO Plumbing & Heating LLC | 5.0★ (2) | 13 mi |
| Pyskaty Plumbing & Heating | 5.0★ (2) | 11 mi |
| Royal Plumbing & Heating Co | 5.0★ (2) | 10 mi |
| Winslow Plumbing & Mechanical | 5.0★ (1) | In Guilford |
National price ranges in USD, not adjusted for Guilford. 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 347 Guilford 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 Guilford 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 |