91/100CR Score
Ranked #1 because of its Google rating and availability: 4.9★ from 1,033 Google reviews, open 24/7.
- 4.9★ from 1,033 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 885 Olive Ave Suite D, Novato, CA 94945
Best Plumbers in San Rafael, CA (2026)
431 plumbers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in San Rafael: Marin Roto-Rooter, CR Score 91/100; 4.9★ from 1,033 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Local Plumbing, posts 24/7 hours; ranked #2 of 431.
- 41
Most-reviewed: Albert Nahman Plumbing, Heating, and Cooling, 3,311 Google reviews at 4.7★, the most of 431 ranked; ranked #41.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
431 San Rafael plumbers are ranked here by CR Score, from 8 published factors. 131 are open 24/7, 247 open Saturdays and 172 open Sundays, based on posted hours. The median Google rating is 4.9★ across 431 rated businesses.
Top 10 plumbers in San Rafael at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Marin Roto-Rooter | 91 | 4.9★ (1,033) | Novato, 10 mi away | 24/7 | Overall |
| 2 | Local Plumbing | 90 | 5.0★ (87) | San Rafael | 24/7 | Emergencies |
| 3 | Discount Plumbing Rooter Services | 90 | 4.9★ (2,670) | Daly City, 20 mi away | 24/7 | — |
| 4 | EO Plumbing Service | 90 | 4.9★ (171) | Albany, 5 mi away | 24/7 | — |
| 5 | Advanced Plumbing & Drain | 90 | 4.9★ (666) | San Francisco, 14 mi away | 24/7 | — |
| 6 | Discount Plumbing San Francisco | 89 | 5.0★ (465) | San Francisco, 16 mi away | 24/7 | — |
| 7 | Jacob & Sons Plumbing | 89 | 4.9★ (75) | San Anselmo, 2 mi away | 24/7 | — |
| 8 | Fast Water Heater Company | 88 | 4.9★ (1,240) | Richmond, 9 mi away | Sat · Sun · Evenings | — |
| 9 | Sharky Plumbing 510 & Rooter LLC - Plumbing Service in Oakland Ca | 88 | 5.0★ (62) | Alameda, 7 mi away | 24/7 | — |
| 10 | Superior Plumbing & Drain Cleaning Services | 88 | 4.9★ (127) | Richmond, 10 mi away | 24/7 | — |
The 431 best plumbers in San Rafael, ranked
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Scores below: based on 6 of 8 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Based in San Rafael
90/100CR ScoreRanked #2 because of its Google rating and availability: 5.0★ from 87 Google reviews, open 24/7.
- 5.0★ from 87 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1221 Andersen Dr Unit M, San Rafael, CA 94901
Based in Daly City, 20 mi away
90/100CR ScoreRanked #3 because of its Google rating and availability: 4.9★ from 2,670 Google reviews, open 24/7.
- 4.9★ from 2,670 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 570 Sylvan St, Daly City, CA 94014
Based in Albany, 5 mi away
90/100CR ScoreRanked #4 because of its Google rating and availability: 4.9★ from 171 Google reviews, open 24/7.
- 4.9★ from 171 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in San Francisco, 14 mi away
90/100CR ScoreRanked #5 because of its Google rating and availability: 4.9★ from 666 Google reviews, open 24/7.
- 4.9★ from 666 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3450 Sacramento St #204, San Francisco, CA 94118
Based in San Francisco, 16 mi away
89/100CR ScoreRanked #6 because of its Google rating and availability: 5.0★ from 465 Google reviews, open 24/7.
- 5.0★ from 465 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 4321 24th St, San Francisco, CA 94114
Based in San Anselmo, 2 mi away
89/100CR ScoreRanked #7 because of its Google rating and availability: 4.9★ from 75 Google reviews, open 24/7.
- 4.9★ from 75 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 5 Belle Ave, San Anselmo, CA 94960
Based in Richmond, 9 mi away
88/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.9★ from 1,240 Google reviews, listed on Google as “Plumber”.
- 4.9★ from 1,240 Google reviews
- Hours
- Mon–Fri 7 AM–7 PM · Sat–Sun 8 AM–5 PM
- Address
- 1065 Hensley St, Richmond, CA 94801
Based in Alameda, 7 mi away
88/100CR ScoreRanked #9 because of its Google rating and availability: 5.0★ from 62 Google reviews, open 24/7.
- 5.0★ from 62 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Richmond, 10 mi away
88/100CR ScoreRanked #10 because of its Google rating and availability: 4.9★ from 127 Google reviews, open 24/7.
- 4.9★ from 127 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1000 13th St, Richmond, CA 94801
#11 Roto-Rooter
Based in San Francisco, 17 mi away
88/100CR ScoreRanked #11 because of its Google rating and availability: 4.9★ from 391 Google reviews, open 24/7.
- 4.9★ from 391 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 60 29th St #428, San Francisco, CA 94110
Based in Oakland, 25 mi away
88/100CR ScoreRanked #12 because of its Google rating and availability: 4.9★ from 1,283 Google reviews, open 24/7.
- 4.9★ from 1,283 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 50 Hegenberger Loop, Oakland, CA 94621
Based in Novato, 7 mi away
87/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.8★ from 791 Google reviews, listed on Google as “Plumber”.
- 4.8★ from 791 Google reviews
- Hours
- Mon–Sun 7 AM–7 PM
- Address
- 22 Digital Dr, Novato, CA 94949
Based in South San Francisco, 22 mi away
87/100CR ScoreRanked #14 because of its Google rating and availability: 5.0★ from 375 Google reviews, open 24/7.
- 5.0★ from 375 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 387 Newman Dr, South San Francisco, CA 94080
Based in Richmond, 13 mi away
87/100CR ScoreRanked #15 because of its Google rating and availability: 5.0★ from 88 Google reviews, open 24/7.
- 5.0★ from 88 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 5327 Jacuzzi St, Richmond, CA 94804
Based in Martinez, 23 mi away
87/100CR ScoreRanked #16 because of its Google rating and availability: 4.8★ from 1,092 Google reviews, open 24/7.
- 4.8★ from 1,092 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2368 Pacheco Blvd, Martinez, CA 94553
Based in San Francisco, 19 mi away
87/100CR ScoreRanked #17 because of its Google rating and availability: 4.7★ from 848 Google reviews, open 24/7.
- 4.7★ from 848 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1070 Quesada Ave, San Francisco, CA 94124
Based in Novato, 7 mi away
87/100CR ScoreRanked #18 because of its Google rating and availability: 4.9★ from 480 Google reviews, open 24/7.
- 4.9★ from 480 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 86 Hamilton Dr Suite A, Novato, CA 94949
Based in Alameda, 19 mi away
87/100CR ScoreRanked #19 because of its Google rating and availability: 5.0★ from 191 Google reviews, open 24/7.
- 5.0★ from 191 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1070 Marina Village Pkwy UNIT 202, Alameda, CA 94501
#20 Roto-Rooter
Based in Daly City, 22 mi away
87/100CR ScoreRanked #20 because of its Google rating and availability: 4.9★ from 407 Google reviews, open 24/7.
- 4.9★ from 407 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3840 Bayshore Blvd, Brisbane, CA 94005
Based in San Francisco, 14 mi away
87/100CR ScoreRanked #21 because of its Google rating and availability: 5.0★ from 74 Google reviews, open 24/7.
- 5.0★ from 74 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3149 California St, San Francisco, CA 94115
Based in Novato, 8 mi away
86/100CR ScoreRanked #22 because of its Google rating and availability: 4.7★ from 83 Google reviews, open 24/7.
- 4.7★ from 83 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 240 Vintage Way #5900, Novato, CA 94945
#23 Pipe Spy, Inc.
Based in Oakland, 17 mi away
86/100CR ScoreRanked #23 because of its Google rating and availability: 4.9★ from 182 Google reviews, open 24/7.
- 4.9★ from 182 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1108 26th St, Oakland, CA 94607
#24 The Plumbing Two
Based in San Pablo, 10 mi away
86/100CR ScoreRanked #24 because of its Google rating and availability: 4.9★ from 57 Google reviews, open 24/7.
- 4.9★ from 57 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 107 Buena Ventura St Apt 80, San Pablo, CA 94806
#25 Genteel Plumbers
Based in San Francisco, 19 mi away
86/100CR ScoreRanked #25 because of its Google rating and availability: 4.8★ from 345 Google reviews, open 24/7.
- 4.8★ from 345 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1181 Revere Ave, San Francisco, CA 94124
Plumbers ranked #26 to #50
#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 431 ranked plumbers here; the rest are on their profiles.
Also serving San Rafael
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 |
|---|---|---|
| ABC Maintenance and Handyman Services | 5.0★ (2) | 15 mi |
| Affordable Plumbing Drain | 5.0★ (1) | In San Rafael |
| Allied Heating & Air Conditioning Co Inc | 4.3★ (3) | In San Rafael |
| Bay Area Plumbing Inc | 3.0★ (2) | 5 mi |
| Bay Area Tankless Installations | In San Rafael | |
| Big Brothers Plumbing Inc | 5.0★ (150) | 21 mi |
| Chosen Rooter & Plumbing Inc. | 4.8★ (297) | 13 mi |
| City Front Plumbing, Inc. | 1.0★ (1) | In San Rafael |
| Elevated Comfort | 5.0★ (90) | In San Rafael |
| Erwyn's Plumbing Inc | 5.0★ (2) | 10 mi |
| Greenport Construction Inc. | 5.0★ (17) | In San Rafael |
| Icon Plumbing & Design | 4.0★ (4) | In San Rafael |
| Kleindienst Plumbing | 1.0★ (1) | In San Rafael |
| North Bay Septic Services | 5.0★ (1) | In San Rafael |
| Ostaggi Plumbing | 5.0★ (1) | In San Rafael |
| Pacific Plumbing | 3.0★ (2) | 14 mi |
| Plumbing Repair Specialists | 5.0★ (1) | In San Rafael |
| PME Drains 2 Plumbing | 1.0★ (1) | In San Rafael |
| Repipe Specialists of the Bay Area | 4.5★ (64) | 11 mi |
| Rising Design & Construction | 3.0★ (2) | 10 mi |
How much do plumbers cost in San Rafael?
National price ranges in USD, not adjusted for San Rafael. 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 |
How to check a plumber's license in California
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).
- Search the business name or license number on the Contractors State License Board (CSLB) license lookup.
- Check that the status is active and the name matches the contract or truck.
- Ask for proof of insurance before work starts.
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
How we ranked San Rafael plumbers
We scored 431 San Rafael plumbers on 8 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. Unknown factors are left out of the score, 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 Rafael data |
|---|---|---|---|
| Reputation | 35% | Bayesian-adjusted Google star rating | Measured |
| Credentials | 15% | Active state license 0.6, bond 0.2, workers’ comp 0.2 | Not yet collected |
| Review volume | 10% | log10(reviews + 1) against the list maximum | Measured |
| Recency | 10% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 10% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | Google main category 1.0, business name 0.7, additional category 0.5 | Measured |
| Proximity | 5% | 1.0 when based in the city, falling to 0 at the trade’s radius | Measured |
| Completeness | 5% | Website, photos, description, hours, claimed profile (0.2 each) | Measured |
Plumbers in San Rafael: frequently asked questions
Who is the best plumber in San Rafael?
By CR Score, the highest-ranked plumber in San Rafael, CA is Marin Roto-Rooter with a CR Score of 91/100. It has 4.9★ from 1,033 Google reviews. It is open 24/7. Local Plumbing (#2) and Discount Plumbing Rooter Services (#3) follow. We ranked 431 plumbers on 8 factors, last updated October 22, 2026.
How many plumbers are there in San Rafael?
ContractorsRanked ranks 431 plumbers serving San Rafael, CA. 2 of them are based in San Rafael; the rest serve it from nearby towns. Another 20 within 25 mi are listed but not ranked yet. Counts are as of October 2026.
Which plumbers in San Rafael are open 24/7?
131 ranked plumbers in San Rafael post 24/7 hours. The highest-ranked are Marin Roto-Rooter (#1), Local Plumbing (#2) and Discount Plumbing Rooter Services (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which plumbers in San Rafael work on weekends?
247 of 431 ranked plumbers post Saturday hours and 172 post Sunday hours. The highest-ranked open Saturdays are Marin Roto-Rooter (#1), Local Plumbing (#2) and Discount Plumbing Rooter Services (#3). Posted hours are office hours; crews may book weekend jobs separately.
How do I check a plumber's license in California?
In California, Contractors State License Board (CSLB) handles licensing and covers C-36 Plumbing contractor license. Search the business or license number at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/CheckLicense.aspx. Jobs of $1,000 or more in labor and materials (from January 1, 2025).
How much does water heater replacement cost in San Rafael?
Water heater replacement typically costs $882 to $1,826, with $1,348 typical (Per unit, installed (unit plus labor); typical range of customer-reported jobs. US national range). This is a national range, not adjusted for San Rafael. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do San Rafael plumbers have?
The median Google rating among 431 rated plumbers in San Rafael is 4.9★, with a median of 18 reviews. Albert Nahman Plumbing, Heating, and Cooling has the most, 3,311 reviews, and ranks #41. We adjust ratings for review count, so a few five-star reviews cannot top the list.
How does ContractorsRanked rank plumbers?
Each plumber gets a 0–100 CR Score from 8 published factors, led by reputation (35%), credentials (15%), review volume (10%) and recency (10%). Factors we cannot measure are left out, not scored as zero. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.
Update log for San Rafael
- October 2026: CR Scores recalculated for 431 plumbers serving San Rafael.
- October 2026: 1 duplicate listing merged.
More plumbers and San Rafael pages
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