930 plumbers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Rancho Santa Margarita: Olson Superior Plumbing, CR Score 65/100; 4.9★ from 2,764 Google reviews; open 24/7.
Best for emergencies (open 24/7): Drain Town Rooter, posts 24/7 hours; ranked #2 of 930.
Most-reviewed: Barker and Sons Plumbing & Rooter, 3,896 Google reviews at 4.8★, the most of 930 ranked; ranked #13.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
930 Rancho Santa Margarita plumbers are ranked here by CR Score, from ten published factors. 451 are open 24/7, 722 open Saturdays and 548 open Sundays, based on posted hours. The median Google rating is 5.0★ across 930 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Olson Superior Plumbing | 65 | 4.9★ (2,764) | Lake Forest, 6 mi away | 24/7 | Overall |
| 2 | Drain Town Rooter | 65 | 5.0★ (1,231) | Mission Viejo, 5 mi away | 24/7 | Emergencies |
| 3 | Pristine Plumbing Inc | 64 | 4.9★ (1,912) | Irvine, 8 mi away | 24/7 | — |
| 4 | Swift Water Heater | 64 | 5.0★ (522) | Mission Viejo, 5 mi away | 24/7 | — |
| 5 | Orange Coast Plumbing | 64 | 5.0★ (512) | Aliso Viejo, 5 mi away | 24/7 | — |
| 6 | Zoom Drain | 64 | 5.0★ (649) | Irvine, 7 mi away | 24/7 | — |
| 7 | Roto-Rooter Plumbing & Water Cleanup | 63 | 4.8★ (1,016) | Aliso Viejo, 8 mi away | 24/7 | — |
| 8 | Plumbing Heating & Air Solutions | 63 | 4.9★ (162) | Rancho Santa Margarita | 24/7 | — |
| 9 | Infinity Plumbing Designs, Inc. | 62 | 4.9★ (984) | Corona, 12 mi away | 24/7 | — |
| 10 | Patriot Plumbing & Rooter | 62 | 5.0★ (321) | Irvine, 8 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 2,764 Google reviews, listed on Google as “Plumber”.
Based in Mission Viejo, 5 mi away
Ranked #2 because of its Google rating and trade focus: 5.0★ from 1,231 Google reviews, listed on Google as “Plumber”.
Based in Irvine, 8 mi away
Ranked #3 because of its Google rating and trade focus: 4.9★ from 1,912 Google reviews, listed on Google as “Plumber”.
Based in Mission Viejo, 5 mi away
Ranked #4 because of its Google rating and trade focus: 5.0★ from 522 Google reviews, listed on Google as “Plumber”.
Based in Aliso Viejo, 5 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 512 Google reviews, listed on Google as “Plumber”.
Based in Irvine, 7 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 649 Google reviews, listed on Google as “Plumber”.
Based in Aliso Viejo, 8 mi away
Ranked #7 because of its Google rating and trade focus: 4.8★ from 1,016 Google reviews, listed on Google as “Plumber”.
Based in Rancho Santa Margarita
Ranked #8 because of its Google rating and trade focus: 4.9★ from 162 Google reviews, listed on Google as “Plumber”.
Based in Corona, 12 mi away
Ranked #9 because of its Google rating and trade focus: 4.9★ from 984 Google reviews, listed on Google as “Plumber”.
Based in Irvine, 8 mi away
Ranked #10 because of its Google rating and trade focus: 5.0★ from 321 Google reviews, listed on Google as “Plumber”.
Based in Rancho Santa Margarita
Ranked #11 because of its Google rating and trade focus: 5.0★ from 561 Google reviews, listed on Google as “Plumber”.
Based in San Clemente, 13 mi away
Ranked #12 because of its Google rating and trade focus: 4.9★ from 2,185 Google reviews, listed on Google as “Plumber”.
Based in Anaheim, 20 mi away
Ranked #13 because of its Google rating and trade focus: 4.8★ from 3,896 Google reviews, listed on Google as “Plumber”.
Based in Orange, 18 mi away
Ranked #14 because of its Google rating and trade focus: 4.9★ from 1,715 Google reviews, listed on Google as “Plumber”.
Based in Irvine, 7 mi away
Ranked #15 because of its Google rating and trade focus: 4.8★ from 332 Google reviews, listed on Google as “Plumber”.
Based in Lake Forest, 4 mi away
Ranked #16 because of its Google rating and trade focus: 4.9★ from 110 Google reviews, listed on Google as “Plumber”.
Based in Laguna Hills, 7 mi away
Ranked #17 because of its Google rating and review volume: 4.8★ from 3,589 Google reviews.
Based in Costa Mesa, 18 mi away
Ranked #18 because of its Google rating and trade focus: 4.9★ from 1,014 Google reviews, listed on Google as “Plumber”.
Based in Orange, 19 mi away
Ranked #19 because of its Google rating and trade focus: 4.8★ from 1,980 Google reviews, listed on Google as “Plumber”.
Based in Santa Ana, 20 mi away
Ranked #20 because of its Google rating and trade focus: 4.9★ from 1,243 Google reviews, listed on Google as “Plumber”.
Based in Mission Viejo, 6 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 85 Google reviews, listed on Google as “Plumber”.
Based in Anaheim, 21 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 1,063 Google reviews, listed on Google as “Plumber”.
Based in Mission Viejo, 3 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 53 Google reviews, listed on Google as “Plumber”.
Based in Laguna Hills, 5 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 77 Google reviews, listed on Google as “Plumber”.
Based in Newport Beach, 16 mi away
Ranked #25 because of its Google rating and trade focus: 4.9★ from 520 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 930 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 |
|---|---|---|
| 1st Choice Plumbing | 5.0★ (2) | 10 mi |
| 24 Hour Restoration & Construction | 5.0★ (2) | 10 mi |
| All Star Plumbing | 3.5★ (2) | 10 mi |
| AW & Sons Plumbing San Clemente | 4.9★ (155) | 8 mi |
| BD Plumbing Team | In Rancho Santa Margarita | |
| BFS Plumbing Inc. | 5.0★ (2) | 6 mi |
| CleanRite Drain Cleaning | 5.0★ (2) | 10 mi |
| Doss Plumbing Co. | 3.0★ (2) | 10 mi |
| Jim & Sons Plumbing & Rooter | 5.0★ (750) | 21 mi |
| Legacy Pro Plumbing | 5.0★ (2) | 10 mi |
| Little Ducks Plumbing | 5.0★ (2) | 10 mi |
| Maxpro Electric | 5.0★ (2) | 5 mi |
| Morrow Plumbing Service, Inc | 5.0★ (2) | 6 mi |
| New World Plumbing, Inc | 5.0★ (2) | 3 mi |
| One Time Plumbing | 5.0★ (2) | 10 mi |
| Orange Coast Plumbing | 4.9★ (454) | 20 mi |
| Palisades Plumbing | 5.0★ (2) | 10 mi |
| Qik Plumbing Laguna Niguel | 3.0★ (2) | 10 mi |
| Reliable Plumbing Service | 5.0★ (28) | 4 mi |
| TSR Trenchless | 5.0★ (72) | 10 mi |
National price ranges in USD, not adjusted for Rancho Santa Margarita. 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 930 Rancho Santa Margarita 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 23, 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 Santa Margarita 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 |