779 plumbers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in King of Prussia: Zoom Drain, CR Score 64/100; 4.9★ from 1,757 Google reviews; open 24/7.
Best for emergencies (open 24/7): Plumb it Heat it Cool it: Plumbing, Drains, Heating & Cooling, posts 24/7 hours; ranked #2 of 779.
Most-reviewed: Horizon Services - Air Conditioning, Heating, Plumbing, & Electrical, 10,656 Google reviews at 4.7★, the most of 779 ranked; ranked #12.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
779 King of Prussia plumbers are ranked here by CR Score, from ten published factors. 352 are open 24/7, 503 open Saturdays and 430 open Sundays, based on posted hours. The median Google rating is 4.9★ across 779 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Zoom Drain | 64 | 4.9★ (1,757) | Plymouth Meeting, 6 mi away | 24/7 | Overall |
| 2 | Plumb it Heat it Cool it: Plumbing, Drains, Heating & Cooling | 64 | 4.9★ (756) | Norristown, 3 mi away | 24/7 | Emergencies |
| 3 | Roto-Rooter Plumbing & Water Cleanup | 64 | 4.8★ (1,182) | Norristown, 3 mi away | 24/7 | — |
| 4 | Ryan's Plumbing and Heating LLC | 63 | 4.9★ (453) | Wayne, 2 mi away | 24/7 | — |
| 5 | Valdel Plumbing | 63 | 4.8★ (1,002) | Norristown, 5 mi away | 24/7 | — |
| 6 | Mattioni Plumbing, Heating & Cooling | 63 | 4.9★ (380) | Trooper, 2 mi away | 24/7 | — |
| 7 | Bill Frusco Plumbing Heating and Air Conditioning | 63 | 4.9★ (2,992) | Horsham, 15 mi away | 24/7 | — |
| 8 | Mattioni Plumbing, Heating & Cooling | 63 | 5.0★ (493) | Phoenixville, 7 mi away | 24/7 | — |
| 9 | Roger Ross Plumbing & Heating, Inc | 63 | 5.0★ (822) | Philadelphia, 10 mi away | 24/7 | — |
| 10 | Dream Team - Plumbing, Heating, Cooling, & Electric | 63 | 4.9★ (1,811) | Lansdowne, 13 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: 4.9★ from 1,757 Google reviews, listed on Google as “Plumber”.
Based in Norristown, 3 mi away
Ranked #2 because of its Google rating and trade focus: 4.9★ from 756 Google reviews, listed on Google as “Plumber”.
Based in Norristown, 3 mi away
Ranked #3 because of its Google rating and trade focus: 4.8★ from 1,182 Google reviews, listed on Google as “Plumber”.
Based in Wayne, 2 mi away
Ranked #4 because of its Google rating and trade focus: 4.9★ from 453 Google reviews, listed on Google as “Plumber”.
Based in Norristown, 5 mi away
Ranked #5 because of its Google rating and trade focus: 4.8★ from 1,002 Google reviews, listed on Google as “Plumber”.
Based in Trooper, 2 mi away
Ranked #6 because of its Google rating and trade focus: 4.9★ from 380 Google reviews, listed on Google as “Plumber”.
Based in Horsham, 15 mi away
Ranked #7 because of its Google rating and trade focus: 4.9★ from 2,992 Google reviews, listed on Google as “Plumber”.
Based in Phoenixville, 7 mi away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 493 Google reviews, listed on Google as “Plumber”.
Based in Philadelphia, 10 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 822 Google reviews, listed on Google as “Plumber”.
Based in Lansdowne, 13 mi away
Ranked #10 because of its Google rating and trade focus: 4.9★ from 1,811 Google reviews, listed on Google as “Plumber”.
Based in Pottstown, 12 mi away
Ranked #11 because of its Google rating and trade focus: 4.9★ from 1,377 Google reviews, listed on Google as “Plumber”.
Based in Audubon, 3 mi away
Ranked #12 because of its Google rating and review volume: 4.7★ from 10,656 Google reviews, the most in King of Prussia.
Based in Downingtown, 17 mi away
Ranked #13 because of its Google rating and trade focus: 4.8★ from 3,621 Google reviews, listed on Google as “Plumber”.
Based in Philadelphia, 17 mi away
Ranked #14 because of its Google rating and trade focus: 4.8★ from 3,739 Google reviews, listed on Google as “Plumber”.
Based in Blue Bell, 6 mi away
Ranked #15 because of its Google rating and trade focus: 4.9★ from 307 Google reviews, listed on Google as “Plumber”.
Based in Norristown, 3 mi away
Ranked #16 because of its Google rating and trade focus: 4.9★ from 199 Google reviews, listed on Google as “Plumber”.
Based in Paoli, 6 mi away
Ranked #17 because of its Google rating and trade focus: 4.9★ from 284 Google reviews, listed on Google as “Plumber”.
Based in Horsham, 15 mi away
Ranked #18 because of its Google rating and trade focus: 4.7★ from 3,018 Google reviews, listed on Google as “Plumber”.
Based in Philadelphia, 16 mi away
Ranked #19 because of its Google rating and trade focus: 4.9★ from 1,610 Google reviews, listed on Google as “Plumber”.
Based in Drexel Hill, 11 mi away
Ranked #20 because of its Google rating and trade focus: 4.9★ from 512 Google reviews, listed on Google as “Plumber”.
Based in Oreland, 11 mi away
Ranked #21 because of its Google rating and trade focus: 4.9★ from 546 Google reviews, listed on Google as “Plumber”.
Based in Wayne, 7 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 182 Google reviews, listed on Google as “Plumber”.
Based in Darby, 14 mi away
Ranked #23 because of its Google rating and trade focus: 4.9★ from 813 Google reviews, listed on Google as “Plumber”.
Based in Philadelphia, 17 mi away
Ranked #24 because of its Google rating and trade focus: 4.6★ from 5,486 Google reviews, listed on Google as “Plumber”.
Based in King of Prussia
Ranked #25 because of its Google rating and trade focus: 5.0★ from 667 Google reviews, listed on Google as “HVAC contractor”.
#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 779 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 |
|---|---|---|
| Advanced Drains And Underground Solutions | 5.0★ (2) | 12 mi |
| Advantage 1, LLC | 5.0★ (1) | In King of Prussia |
| American Drain Cleaning and Plumbing, LLC | 4.8★ (76) | 5 mi |
| Andrew Gardner - Licensed Plumber | 5.0★ (2) | 8 mi |
| Andrew's Quality Plumbing & Heating | 5.0★ (2) | 14 mi |
| Bartkowski Builders | 5.0★ (2) | 14 mi |
| Boccella Electric | 5.0★ (1) | In King of Prussia |
| Boss Plumbing & Heating | 4.8★ (217) | 12 mi |
| Dale Corporation | 2.0★ (2) | 12 mi |
| Edgar D Fripps Plumbing & Heating | 5.0★ (2) | 14 mi |
| Farrow Plumbing & Heating | 5.0★ (2) | 13 mi |
| John McCuen Backflow Services | 5.0★ (2) | 8 mi |
| KCS Plumbing | 4.8★ (305) | 13 mi |
| Merone Plumbing & Hvac Llc | 5.0★ (1) | In King of Prussia |
| Ray Ross Plumbing & Heating | 4.8★ (65) | 4 mi |
| Roher Mechanical Service, Inc. | 5.0★ (2) | 10 mi |
| S & A Plumbing | 1.0★ (2) | 8 mi |
| SJS Plumbing Services, Inc. | 3.0★ (2) | 3 mi |
| Steve Dunsmore's Plumbing & Heating | 5.0★ (2) | 12 mi |
| T Shannon Conaboy Plumbing & Heating | 4.5★ (2) | 8 mi |
National price ranges in USD, not adjusted for King of Prussia. 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 779 King of Prussia 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 King of Prussia 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 |