821 plumbers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in San Lorenzo: Mr. Rooter Plumbing of The Oakland-Berkeley Area, CR Score 65/100; 4.9★ from 1,283 Google reviews; open 24/7.
Best for emergencies (open 24/7): Water Heaters Only, Inc, posts 24/7 hours; ranked #2 of 821.
Most-reviewed: Jazz Heating, Air Conditioning and Plumbing, 3,438 Google reviews at 4.9★, the most of 821 ranked; ranked #37.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
821 San Lorenzo plumbers are ranked here by CR Score, from ten published factors. 306 are open 24/7, 586 open Saturdays and 436 open Sundays, based on posted hours. The median Google rating is 4.9★ across 821 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Mr. Rooter Plumbing of The Oakland-Berkeley Area | 65 | 4.9★ (1,283) | Oakland, 5 mi away | 24/7 | Overall |
| 2 | Water Heaters Only, Inc | 64 | 4.9★ (531) | Hayward, 3 mi away | 24/7 | Emergencies |
| 3 | Plumbing Care Inc | 64 | 4.9★ (1,948) | San Ramon, 10 mi away | 24/7 | — |
| 4 | Discount Plumbing Rooter Services | 63 | 4.9★ (2,670) | Daly City, 18 mi away | 24/7 | — |
| 5 | Handy Plumbing Man, LLC | 63 | 4.9★ (1,314) | San Carlos, 14 mi away | 24/7 | — |
| 6 | Michael Gardner Plumbing | 63 | 5.0★ (94) | San Lorenzo | 24/7 | — |
| 7 | Monarch Plumbing and Rooter Inc | 62 | 4.9★ (248) | Hayward, 6 mi away | 24/7 | — |
| 8 | Roto-Rooter Plumbing & Water Cleanup | 62 | 4.8★ (229) | Hayward, 4 mi away | 24/7 | — |
| 9 | Bayshore Plumbers | 62 | 4.9★ (880) | Redwood City, 14 mi away | 24/7 | — |
| 10 | Roto-Rooter Plumbing & Water Cleanup | 62 | 4.8★ (1,239) | East Palo Alto, 14 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 San Lorenzo
Based in Oakland, 5 mi away
Ranked #1 because of its Google rating and trade focus: 4.9★ from 1,283 Google reviews, listed on Google as “Plumber”.
Based in Hayward, 3 mi away
Ranked #2 because of its Google rating and trade focus: 4.9★ from 531 Google reviews, listed on Google as “Plumber”.
Based in San Ramon, 10 mi away
Ranked #3 because of its Google rating and trade focus: 4.9★ from 1,948 Google reviews, listed on Google as “Plumber”.
Based in Daly City, 18 mi away
Ranked #4 because of its Google rating and trade focus: 4.9★ from 2,670 Google reviews, listed on Google as “Plumber”.
Based in San Carlos, 14 mi away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 1,314 Google reviews, listed on Google as “Plumber”.
Based in San Lorenzo
Ranked #6 because of its Google rating and trade focus: 5.0★ from 94 Google reviews, listed on Google as “Plumber”.
Based in Hayward, 6 mi away
Ranked #7 because of its Google rating and trade focus: 4.9★ from 248 Google reviews, listed on Google as “Plumber”.
Based in Hayward, 4 mi away
Ranked #8 because of its Google rating and trade focus: 4.8★ from 229 Google reviews, listed on Google as “Plumber”.
Based in Redwood City, 14 mi away
Ranked #9 because of its Google rating and trade focus: 4.9★ from 880 Google reviews, listed on Google as “Plumber”.
Based in East Palo Alto, 14 mi away
Ranked #10 because of its Google rating and trade focus: 4.8★ from 1,239 Google reviews, listed on Google as “Plumber”.
Based in San Carlos, 14 mi away
Ranked #11 because of its Google rating and trade focus: 4.9★ from 658 Google reviews, listed on Google as “Plumber”.
Based in Dublin, 12 mi away
Ranked #12 because of its Google rating and trade focus: 4.9★ from 453 Google reviews, listed on Google as “Plumber”.
Based in San Ramon, 11 mi away
Ranked #13 because of its Google rating and trade focus: 4.9★ from 339 Google reviews, listed on Google as “Plumber”.
Based in Redwood City, 14 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 402 Google reviews, listed on Google as “Plumber”.
Based in Burlingame, 15 mi away
Ranked #15 because of its Google rating and trade focus: 4.9★ from 1,910 Google reviews, listed on Google as “Plumber”.
Based in Hayward, 2 mi away
Ranked #16 because of its Google rating and trade focus: 4.7★ from 138 Google reviews, listed on Google as “Plumber”.
Based in Foster City, 11 mi away
Ranked #17 because of its Google rating and trade focus: 4.9★ from 350 Google reviews, listed on Google as “Plumber”.
Based in Hayward, 3 mi away
Ranked #18 because of its Google rating and trade focus: 4.9★ from 233 Google reviews, listed on Google as “Plumber”.
Based in Alameda, 11 mi away
Ranked #19 because of its Google rating and trade focus: 4.7★ from 575 Google reviews, listed on Google as “Plumber”.
Based in Alameda, 11 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 191 Google reviews, listed on Google as “Plumber”.
Based in Hayward, 3 mi away
Ranked #21 because of its Google rating and trade focus: 4.8★ from 98 Google reviews, listed on Google as “Plumber”.
Based in San Mateo, 14 mi away
Ranked #22 because of its Google rating and trade focus: 4.8★ from 1,648 Google reviews, listed on Google as “Plumber”.
Based in Newark, 11 mi away
Ranked #23 because of its Google rating and trade focus: 4.8★ from 353 Google reviews, listed on Google as “Plumber”.
Based in Hayward, 2 mi away
Ranked #24 because of its Google rating and trade focus: 4.7★ from 94 Google reviews, listed on Google as “Plumber”.
Based in Oakland, 5 mi away
Ranked #25 because of its Google rating and trade focus: 4.8★ from 127 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 821 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 |
|---|---|---|
| Airborne Plumbing | 5.0★ (2) | 3 mi |
| ASAP Plumbing & Water Heater | 1.0★ (2) | 3 mi |
| Bay Plumbing | 5.0★ (2) | 10 mi |
| Bell Brothers Plumbing Heating & Air - Hayward | 4.7★ (863) | 4 mi |
| Beyond Plumbing | 5.0★ (2) | 6 mi |
| Calimo Plumbing Solutions | 5.0★ (2) | 11 mi |
| Genteel Plumbers | 4.8★ (345) | 15 mi |
| mtz plumbing inc | 5.0★ (2) | 7 mi |
| NorCal Natural Habitats | 5.0★ (2) | 10 mi |
| Octopus Handyman | 5.0★ (2) | 11 mi |
| Pipe Spy, Inc. | 4.9★ (182) | 13 mi |
| Plumbing Heroes: Oakland | 5.0★ (2) | 10 mi |
| Plumbing The Bay | 4.7★ (148) | 2 mi |
| Rooter Tec Plumbing and Drain | 5.0★ (2) | 3 mi |
| Roto-Rooter Plumbing & Water Cleanup | 4.8★ (2,560) | 12 mi |
| Service Hero Plumbing & Air | 4.5★ (1,252) | 3 mi |
| Total Works General Contractors | 5.0★ (2) | 5 mi |
| VRG Plumbing | 3.0★ (2) | 10 mi |
| Water Heaters Only | 5.0★ (2) | 1 mi |
| Water Works Plumbing Co. Inc. | 5.0★ (2) | 7 mi |
National price ranges in USD, not adjusted for San Lorenzo. 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 821 San Lorenzo 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 San Lorenzo 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 |