504 plumbers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Grafton: Roto-Rooter Plumbing & Water Cleanup, CR Score 63/100; 4.8★ from 1,228 Google reviews; open 24/7.
Best for emergencies (open 24/7): Assured Service, Inc., posts 24/7 hours; ranked #2 of 504.
Most-reviewed: Landry Mechanical Inc Plumbing HVAC & Electric, 3,030 Google reviews at 4.8★, the most of 504 ranked; ranked #4.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
504 Grafton plumbers are ranked here by CR Score, from ten published factors. 184 are open 24/7, 283 open Saturdays and 217 open Sundays, based on posted hours. The median Google rating is 4.9★ across 504 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Roto-Rooter Plumbing & Water Cleanup | 63 | 4.8★ (1,228) | Worcester, 10 mi away | 24/7 | Overall |
| 2 | Assured Service, Inc. | 62 | 4.9★ (96) | Grafton | 24/7 | Emergencies |
| 3 | G&C Plumbing & Heating | 62 | 5.0★ (602) | Blackstone, 14 mi away | 24/7 | — |
| 4 | Landry Mechanical Inc Plumbing HVAC & Electric | 62 | 4.8★ (3,030) | Millbury, 4 mi away | 24/7 | Most reviews |
| 5 | Wind River Environmental | 61 | 4.9★ (854) | Hudson, 15 mi away | 24/7 | — |
| 6 | Stake Plumbing and Heating | 61 | 5.0★ (182) | Holden, 9 mi away | 24/7 | — |
| 7 | Blue Owl Plumbing | 61 | 5.0★ (117) | Grafton | 24/7 | — |
| 8 | Gabriele Plumbing & Heating | 61 | 5.0★ (641) | Shrewsbury, 4 mi away | Sat | — |
| 9 | STP Plumbing | 61 | 5.0★ (484) | Blackstone, 16 mi away | 24/7 | — |
| 10 | Control Point Heating • Cooling • Plumbing • Electric | 61 | 5.0★ (586) | Shrewsbury, 4 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: 4.8★ from 1,228 Google reviews, listed on Google as “Plumber”.
Based in Grafton
Ranked #2 because of its Google rating and trade focus: 4.9★ from 96 Google reviews, listed on Google as “Plumber”.
Based in Blackstone, 14 mi away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 602 Google reviews, listed on Google as “Plumber”.
Based in Millbury, 4 mi away
Ranked #4 because of its Google rating and review volume: 4.8★ from 3,030 Google reviews, the most in Grafton.
Based in Hudson, 15 mi away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 854 Google reviews, listed on Google as “Plumber”.
Based in Holden, 9 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 182 Google reviews, listed on Google as “Plumber”.
Based in Grafton
Ranked #7 because of its Google rating and trade focus: 5.0★ from 117 Google reviews, listed on Google as “Plumber”.
Based in Shrewsbury, 4 mi away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 641 Google reviews, listed on Google as “Plumber”.
Based in Blackstone, 16 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 484 Google reviews, listed on Google as “Plumber”.
Based in Shrewsbury, 4 mi away
Ranked #10 because of its Google rating and review volume: 5.0★ from 586 Google reviews.
Based in Blackstone, 13 mi away
Ranked #11 because of its Google rating and trade focus: 4.7★ from 635 Google reviews, listed on Google as “Plumber”.
Based in Millbury, 5 mi away
Ranked #12 because of its Google rating and trade focus: 4.9★ from 54 Google reviews, listed on Google as “Plumber”.
Based in Worcester, 7 mi away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 57 Google reviews, listed on Google as “Plumber”.
Based in Mendon, 9 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 65 Google reviews, listed on Google as “Plumber”.
Based in Spencer, 17 mi away
Ranked #15 because of its Google rating and trade focus: 4.6★ from 825 Google reviews, listed on Google as “Plumber”.
Based in Grafton
Ranked #16 because of its Google rating and trade focus: 5.0★ from 16 Google reviews, listed on Google as “Plumber”.
Based in Holden, 9 mi away
Ranked #17 because of its Google rating and trade focus: 4.6★ from 196 Google reviews, listed on Google as “Plumber”.
Based in Auburn, 6 mi away
Ranked #18 because of its Google rating and review volume: 4.9★ from 2,563 Google reviews.
Based in Holliston, 14 mi away
Ranked #19 because of its Google rating and review volume: 4.8★ from 2,950 Google reviews.
Based in Northborough, 7 mi away
Ranked #20 because of its Google rating and trade focus: 4.9★ from 1,127 Google reviews, listed on Google as “Plumber”.
Based in Charlton, 12 mi away
Ranked #21 because of its Google rating and trade focus: 4.9★ from 105 Google reviews, listed on Google as “Plumber”.
Based in Clinton, 16 mi away
Ranked #22 because of its Google rating and trade focus: 4.7★ from 340 Google reviews, listed on Google as “Plumber”.
Based in Marlborough, 9 mi away
Ranked #23 because of its Google rating and review volume: 4.8★ from 1,069 Google reviews.
Based in Holden, 10 mi away
Ranked #24 because of its Google rating and trade focus: 4.9★ from 69 Google reviews, listed on Google as “Plumber”.
Based in Shrewsbury, 4 mi away
Ranked #25 because of its Google rating and trade focus: 4.8★ from 28 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 504 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 |
|---|---|---|
| ABH Plumbing & Heating Contractors, LLC | 3.0★ (2) | 8 mi |
| BNS Plumbing & Mechanical, INC. | 5.0★ (2) | 12 mi |
| David A. Longuemare Plumbing & Heating | 3.0★ (2) | 10 mi |
| GEM Plumbing and Heating | 4.6★ (6,353) | 23 mi |
| Genuine Plumbing & Mechanical | In Grafton | |
| Grafton Plumbing & Heating | 5.0★ (2) | 5 mi |
| Grants Septic Services | In Grafton | |
| Groundscapes Inc. | 5.0★ (2) | 9 mi |
| Kavinelli Plumbing & Heating | 5.0★ (2) | 7 mi |
| Kevin Shea Plumbing Heating and Cooling | 5.0★ (2) | 6 mi |
| Lamont Plumbing & Heating | 5.0★ (80) | 13 mi |
| Luis Baez The Handy Neighbor | 5.0★ (2) | In Grafton |
| M Bulldog Plumbing Inc | In Grafton | |
| Mac Donald Plumbing & Heating | 5.0★ (2) | 10 mi |
| Mark Kooyomjian Plumbing & Heating | 5.0★ (2) | 11 mi |
| Pitstop Plumbing and Heating | 5.0★ (2) | 7 mi |
| Providers | 1.5★ (2) | 6 mi |
| R Gustafson Sewer & Drain | 3.0★ (2) | 3 mi |
| Vulter Carol | In Grafton | |
| Wiersma Plumbing & Heating Inc | 5.0★ (2) | 9 mi |
National price ranges in USD, not adjusted for Grafton. 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 Massachusetts, Massachusetts Board of State Examiners of Plumbers and Gas Fitters 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 504 Grafton 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 Grafton 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 |