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Emergency Plumbers in San Anselmo, CA (2026)

Top 50 of 415 plumbers, in emergency orderUpdated 0 paid placements in this rankingHow we rank

25 of the 50 plumbers on this list post 24/7 hours. 24/7 businesses come first, then same-day, each ranked by CR Score with availability weighted higher.

Burst pipe or major leak: shut off the main water valve first. If water reaches outlets or the panel, stay clear and call 911.

The short answer

  1. 1

    #1 for emergency plumbing in San Anselmo: Marin Roto-Rooter, open 24/7.

Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank

Top emergency plumbers in San Anselmo at a glance

Top emergency plumbers in San Anselmo at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Marin Roto-Rooter644.9★ (1,033)Novato, 9 mi away24/7
2Discount Plumbing Rooter Services634.9★ (2,670)Daly City, 21 mi away24/7
3EO Plumbing Service634.9★ (171)Albany, 5 mi away24/7
4Jacob & Sons Plumbing634.9★ (75)San Anselmo24/7
5Advanced Plumbing & Drain624.9★ (666)San Francisco, 14 mi away24/7
6Local Plumbing625.0★ (87)San Rafael, 4 mi away24/7
7Discount Plumbing San Francisco625.0★ (465)San Francisco, 17 mi away24/7
8Chosen Rooter & Plumbing Inc.614.8★ (297)San Francisco, 14 mi away24/7
924/7 Rooter & Plumbing614.7★ (848)San Francisco, 20 mi away24/7
10Roto-Rooter614.9★ (391)San Francisco, 18 mi away24/7

Call an emergency plumber in San Anselmo now

24/7 hours mean the business says its phone is answered around the clock. Arrival time depends on where the crew is. Ask for an arrival window when you call.

The 50 emergency plumbers in San Anselmo, ranked

24/7 first, then same-day service, then the rest. Each group is in CR Score order on emergency weights. The full ranking of all 415 is on the plumbers page.

Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.

  1. Ranked #1 in San Anselmo

    #1 Marin Roto-Rooter

    Based in Novato, 9 mi away

    64/100CR Score

    Ranked #1 because of its Google rating and trade focus: 4.9★ from 1,033 Google reviews, listed on Google as “Plumber”.

    • 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
    View profile for Marin Roto-Rooter(415) 898-2700

  6. #6 Local Plumbing

    Based in San Rafael, 4 mi away

    62/100CR Score

    Ranked #6 because of its Google rating and trade focus: 5.0★ from 87 Google reviews, listed on Google as “Plumber”.

    • 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
    View profile for Local Plumbing(415) 323-5140

  10. #10 Roto-Rooter

    Based in San Francisco, 18 mi away

    61/100CR Score

    Ranked #10 because of its Google rating and trade focus: 4.9★ from 391 Google reviews, listed on Google as “Plumber”.

    • 4.9★ from 391 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    60 29th St #428, San Francisco, CA 94110
    View profile for Roto-Rooter(415) 964-3302

  14. #14 Fast Local Plumbers

    Based in Novato, 8 mi away

    60/100CR Score

    Ranked #14 because of its Google rating and trade focus: 4.7★ from 83 Google reviews, listed on Google as “Plumber”.

    • 4.7★ from 83 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    240 Vintage Way #5900, Novato, CA 94945
    View profile for Fast Local Plumbers(628) 209-0668

  17. #17 Big Blue Plumbing

    Based in Alameda, 21 mi away

    60/100CR Score

    Ranked #17 because of its Google rating and trade focus: 4.7★ from 575 Google reviews, listed on Google as “Plumber”.

    • 4.7★ from 575 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    768 Stewart Ct, Alameda, CA 94501
    View profile for Big Blue Plumbing(510) 939-7870

  18. #18 Ongaro & Sons

    Based in San Anselmo

    60/100CR Score

    Ranked #18 because of its Google rating and review volume: 4.9★ from 762 Google reviews.

    • 4.9★ from 762 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    11 Ross Ave, San Anselmo, CA 94960
    View profile for Ongaro & Sons(415) 523-3755

  19. #19 Genteel Plumbers

    Based in San Francisco, 20 mi away

    60/100CR Score

    Ranked #19 because of its Google rating and trade focus: 4.8★ from 345 Google reviews, listed on Google as “Plumber”.

    • 4.8★ from 345 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1181 Revere Ave, San Francisco, CA 94124
    View profile for Genteel Plumbers(833) 436-8335

  20. #20 SplashFix Plumbing

    Based in South San Francisco, 23 mi away

    60/100CR Score

    Ranked #20 because of its Google rating and trade focus: 5.0★ from 375 Google reviews, listed on Google as “Plumber”.

    • 5.0★ from 375 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    387 Newman Dr, South San Francisco, CA 94080
    View profile for SplashFix Plumbing(415) 223-5389

  23. #23 Roto-Rooter

    Based in Daly City, 22 mi away

    60/100CR Score

    Ranked #23 because of its Google rating and trade focus: 4.9★ from 407 Google reviews, listed on Google as “Plumber”.

    • 4.9★ from 407 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    3840 Bayshore Blvd, Brisbane, CA 94005
    View profile for Roto-Rooter(415) 480-7073

Top 50 of 415 plumbers by emergency score

#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile.

plumbers in San Anselmo, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Pipe Spy, Inc.594.9★ (182)19 mi
27O'Grady Plumbing594.9★ (173)19 mi
28Roto-Rooter Plumbing & Water Cleanup595.0★ (191)21 mi
29Isackson Plumbing595.0★ (74)14 mi
30The Plumbing Two594.9★ (57)12 mi
31GTO. Plumbing and rooter594.9★ (59)13 mi
32Roto-Rooter Plumbing & Water Cleanup594.8★ (2,560)20 mi
33Heise's Plumbing594.9★ (1,454)19 mi
34Nelson Family Plumbing & Water Heaters594.7★ (113)15 mi
35PrimeFlow Plumbing San Pablo595.0★ (39)12 mi
36Works Plumbing Repair & Drain Cleaning594.6★ (99)15 mi
37Local Plumbing585.0★ (211)9 mi
38Repipe Specialists of the Bay Area584.5★ (64)12 mi
39Munoz services584.9★ (52)14 mi
40Bay Ridge Plumbing INC.585.0★ (6)2 mi
41AR Plumbing Inc585.0★ (8)4 mi
42John Gleason Plumbing, Inc585.0★ (13)7 mi
43Wright Brothers Plumbing & Gas584.8★ (137)20 mi
44Big Brothers Plumbing Inc585.0★ (150)23 mi
45Cabrillo Plumbing, Heating & Air584.9★ (966)18 mi
46Andrew Pinos Plumbing584.4★ (7)2 mi
47Cal-Delta Plumbing585.0★ (20)10 mi
48Hydro Plumbing & Rooter585.0★ (67)18 mi
49Roto-Rooter Plumbing & Water Cleanup584.8★ (313)11 mi
50Kelly Plumbing585.0★ (35)15 mi

How we ranked emergency plumbers in San Anselmo

Emergency lists move 10 points of the CR Score from reputation to availability: 15% and 15%. Availability credits 24/7 hours, same-day service, weekend hours and weekly open hours. 24/7 plumbers are listed first, then same-day, then the rest; ranks follow that order. Paid placement never changes a rank.

Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed from
Reputation15%Google star rating, adjusted for how many reviews back it
Credentials15%Active state license, bond and workers’ comp on file
Review volume10%Number of Google reviews, compared with the most-reviewed business on the list
Recency5%Share of reviews from the last 12 months
Availability15%Weekly open hours, Saturday, Sunday, 24/7 or same-day
Trade focus10%How clearly the business does this trade (its Google category and name)
Proximity5%Based in the city scores highest, less the farther away it is
Claimed profile10%The business has claimed its ContractorsRanked profile (free or paid earn the same)
Partnered5%The business links to ContractorsRanked from its own website with our badge, checked periodically
ContractorsRanked reviews10%Verified customer reviews collected by ContractorsRanked: their rating and how many there are

Emergency plumbers in San Anselmo: questions

Which plumbers in San Anselmo are open 24/7?

25 on this list post 24/7 hours, including Marin Roto-Rooter, Discount Plumbing Rooter Services, EO Plumbing Service, Jacob & Sons Plumbing and Advanced Plumbing & Drain.

Who is ranked #1 for emergency plumbing in San Anselmo, CA?

Marin Roto-Rooter is #1, with a CR Score of 64 out of 100 on emergency weights.

How are emergency plumbers in San Anselmo ranked?

Emergency lists move 10 points of the CR Score from reputation to availability: 15% and 15%. Availability credits 24/7 hours, same-day service, weekend hours and weekly open hours. 24/7 plumbers are listed first, then same-day, then the rest; ranks follow that order. Paid placement never changes a rank.

What should I do before the plumber arrives?

Burst pipe or major leak: shut off the main water valve first. If water reaches outlets or the panel, stay clear and call 911.

How many emergency plumbers here list a phone number?

25 of the 25 businesses ranked in full list a phone number. Tap Call to dial it.

Update log for San Anselmo

  1. October 2026: CR Scores recalculated for 415 plumbers serving San Anselmo.
  2. October 2026: 1 duplicate listing merged.

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