790 plumbers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Rancho Cucamonga: Option One Plumbing, CR Score 66/100; 4.8★ from 3,017 Google reviews; open 24/7.
Best for emergencies (open 24/7): Scott McLeod Plumbing, Inc., posts 24/7 hours; ranked #2 of 790.
Most-reviewed: All Pro Cooling, Heating, Plumbing & Electrical, 7,425 Google reviews at 4.8★, the most of 790 ranked; ranked #13.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
790 Rancho Cucamonga plumbers are ranked here by CR Score, from ten published factors. 412 are open 24/7, 634 open Saturdays and 497 open Sundays, based on posted hours. The median Google rating is 4.9★ across 790 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Option One Plumbing | 66 | 4.8★ (3,017) | Rancho Cucamonga | 24/7 | Overall |
| 2 | Scott McLeod Plumbing, Inc. | 65 | 4.9★ (756) | Rancho Cucamonga | 24/7 | Emergencies |
| 3 | Bow Tie Plumbing & Rooter | 64 | 5.0★ (334) | Rancho Cucamonga | 24/7 | — |
| 4 | Ramco Plumbing Heating & Air | 64 | 5.0★ (262) | Rancho Cucamonga | 24/7 | — |
| 5 | Rooter Hero Plumbing & Air | 64 | 4.9★ (1,637) | Pomona, 9 mi away | 24/7 | — |
| 6 | Bobby Blue Plumbing Rancho Cucamonga | 64 | 4.9★ (354) | Rancho Cucamonga | 24/7 | — |
| 7 | AS Plumbing Mechanical | 64 | 5.0★ (618) | Fontana, 6 mi away | 24/7 | — |
| 8 | Peli Plumbing | 64 | 5.0★ (229) | Rancho Cucamonga | 24/7 | — |
| 9 | Utility Plumbing Services | 64 | 5.0★ (219) | Rancho Cucamonga | 24/7 | — |
| 10 | AYS Plumbing & Rooter | 64 | 4.9★ (1,726) | Upland, 4 mi away | Sat · Sun · Evenings | — |
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 3,017 Google reviews, listed on Google as “Plumber”.
Based in Rancho Cucamonga
Ranked #2 because of its Google rating and trade focus: 4.9★ from 756 Google reviews, listed on Google as “Plumber”.
Based in Rancho Cucamonga
Ranked #3 because of its Google rating and trade focus: 5.0★ from 334 Google reviews, listed on Google as “Plumber”.
Based in Rancho Cucamonga
Ranked #4 because of its Google rating and trade focus: 5.0★ from 262 Google reviews, listed on Google as “Plumber”.
Based in Pomona, 9 mi away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 1,637 Google reviews, listed on Google as “Plumber”.
Based in Rancho Cucamonga
Ranked #6 because of its Google rating and trade focus: 4.9★ from 354 Google reviews, listed on Google as “Plumber”.
Based in Fontana, 6 mi away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 618 Google reviews, listed on Google as “Plumber”.
Based in Rancho Cucamonga
Ranked #8 because of its Google rating and trade focus: 5.0★ from 229 Google reviews, listed on Google as “Plumber”.
Based in Rancho Cucamonga
Ranked #9 because of its Google rating and trade focus: 5.0★ from 219 Google reviews, listed on Google as “Plumber”.
Based in Upland, 4 mi away
Ranked #10 because of its Google rating and trade focus: 4.9★ from 1,726 Google reviews, listed on Google as “Plumber”.
Based in Rancho Cucamonga
Ranked #11 because of its Google rating and trade focus: 5.0★ from 485 Google reviews, listed on Google as “Plumber”.
Based in Upland, 5 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 302 Google reviews, listed on Google as “Plumber”.
Based in Ontario, 4 mi away
Ranked #13 because of its Google rating and review volume: 4.8★ from 7,425 Google reviews, the most in Rancho Cucamonga.
Based in Rancho Cucamonga
Ranked #14 because of its Google rating and trade focus: 4.8★ from 226 Google reviews, listed on Google as “Plumber”.
Based in Fontana, 8 mi away
Ranked #15 because of its Google rating and trade focus: 4.9★ from 592 Google reviews, listed on Google as “Plumber”.
Based in Rancho Cucamonga
Ranked #16 because of its Google rating and trade focus: 4.9★ from 144 Google reviews, listed on Google as “Plumber”.
Based in Claremont, 8 mi away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 346 Google reviews, listed on Google as “Plumber”.
Based in Fontana, 7 mi away
Ranked #18 because of its Google rating and trade focus: 4.8★ from 588 Google reviews, listed on Google as “Plumber”.
Based in Upland, 4 mi away
Ranked #19 because of its Google rating and trade focus: 4.8★ from 319 Google reviews, listed on Google as “Plumber”.
Based in Rancho Cucamonga
Ranked #20 because of its Google rating and trade focus: 4.7★ from 220 Google reviews, listed on Google as “Plumber”.
Based in Ontario, 3 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 114 Google reviews, listed on Google as “Plumber”.
Based in Rancho Cucamonga
Ranked #22 because of its Google rating and trade focus: 5.0★ from 72 Google reviews, listed on Google as “Plumber”.
Based in Pomona, 9 mi away
Ranked #23 because of its Google rating and trade focus: 4.8★ from 542 Google reviews, listed on Google as “Plumber”.
Based in Claremont, 3 mi away
Ranked #24 because of its Google rating and trade focus: 4.9★ from 100 Google reviews, listed on Google as “Plumber”.
Based in Colton, 15 mi away
Ranked #25 because of its Google rating and trade focus: 4.8★ from 1,351 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 790 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 |
|---|---|---|
| A Plus Handyman Solutions | 5.0★ (2) | 8 mi |
| All City Plumbing, Air & Electrical | In Rancho Cucamonga | |
| Clear Water Plumbing Services | In Rancho Cucamonga | |
| Contreras Concepts Plumbing | 5.0★ (2) | 8 mi |
| Currier Plumbing | 5.0★ (2) | 8 mi |
| Divine Remodels & More | 5.0★ (2) | In Rancho Cucamonga |
| Empower Building Company | In Rancho Cucamonga | |
| Endo Plumbing Co Inc. | 3.0★ (2) | 11 mi |
| Fontana Plumbing Repair & Water Heater | 5.0★ (2) | 9 mi |
| High Quality Plumbing Service Rancho Cucamonga CA | 5.0★ (1) | In Rancho Cucamonga |
| Home Repair Services | In Rancho Cucamonga | |
| JB Plumbing | 4.8★ (396) | 13 mi |
| JB Plumbing | 4.5★ (2) | 8 mi |
| Jim & Sons Plumbing & Rooter | 5.0★ (750) | 16 mi |
| Jorod Plumbing Restoration | 5.0★ (2) | 7 mi |
| Orange Coast Pipe | 5.0★ (2) | 8 mi |
| P & P PLUMBING COMPANY | 1.0★ (2) | 4 mi |
| Robinson's Mechanical Construction | 4.0★ (2) | 5 mi |
| Rooter Time Plumbing | 5.0★ (2) | 11 mi |
| Roto-Rooter Plumbing & Water Cleanup | In Rancho Cucamonga |
National price ranges in USD, not adjusted for Rancho Cucamonga. 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 California, Contractors State License Board (CSLB) licenses C-36 Plumbing contractor license.
Jobs of $1,000 or more in labor and materials (from January 1, 2025).
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 790 Rancho Cucamonga 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 Rancho Cucamonga 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 |