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Emergency Plumbers in Lucas Valley-Marinwood, CA (2026)

Top 50 of 386 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 Lucas Valley-Marinwood: 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 Lucas Valley-Marinwood at a glance

Top emergency plumbers in Lucas Valley-Marinwood at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Marin Roto-Rooter654.9★ (1,033)Novato, 5 mi away24/7
2S Waters Plumbing645.0★ (210)Lucas Valley-Marinwood24/7
3EO Plumbing Service614.9★ (171)Albany, 10 mi away24/7
4Advanced Plumbing & Drain614.9★ (666)San Francisco, 19 mi away24/7
5Fast Local Plumbers614.7★ (83)Novato, 4 mi away24/7
6Jacob & Sons Plumbing614.9★ (75)San Anselmo, 5 mi away24/7
7Local Plumbing615.0★ (87)San Rafael, 7 mi away24/7
8Bellows Plumbing, Heating, Cooling & Electrical614.9★ (480)Novato, 3 mi away24/7
9Discount Plumbing San Francisco605.0★ (465)San Francisco, 21 mi away24/7
10Rooter Hero Plumbing & Air of Martinez604.8★ (1,092)Martinez, 25 mi away24/7

Call an emergency plumber in Lucas Valley-Marinwood 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 Lucas Valley-Marinwood, 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 386 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 Lucas Valley-Marinwood

    #1 Marin Roto-Rooter

    Based in Novato, 5 mi away

    65/100CR 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

  5. #5 Fast Local Plumbers

    Based in Novato, 4 mi away

    61/100CR Score

    Ranked #5 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

  7. #7 Local Plumbing

    Based in San Rafael, 7 mi away

    61/100CR Score

    Ranked #7 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

  14. #14 Roto-Rooter

    Based in San Francisco, 22 mi away

    60/100CR Score

    Ranked #14 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

  18. #18 Big Blue Plumbing

    Based in Alameda, 24 mi away

    59/100CR Score

    Ranked #18 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

  21. #21 Ongaro & Sons

    Based in San Anselmo, 5 mi away

    59/100CR Score

    Ranked #21 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

  24. #24 The Plumbing Two

    Based in San Pablo, 14 mi away

    59/100CR Score

    Ranked #24 because of its Google rating and trade focus: 4.9★ from 57 Google reviews, listed on Google as “Plumber”.

    • 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
    View profile for The Plumbing Two(510) 992-9474

  25. #25 Genteel Plumbers

    Based in San Francisco, 24 mi away

    59/100CR Score

    Ranked #25 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

Top 50 of 386 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 Lucas Valley-Marinwood, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Nelson Family Plumbing & Water Heaters594.7★ (113)16 mi
27Mr. Rooter Plumbing of San Francisco584.8★ (261)23 mi
28Wright Brothers Plumbing & Gas584.8★ (137)19 mi
29GTO. Plumbing and rooter584.9★ (59)15 mi
30Pipe Spy, Inc.584.9★ (182)22 mi
31Roto-Rooter Plumbing & Water Cleanup585.0★ (191)24 mi
32PrimeFlow Plumbing San Pablo585.0★ (39)14 mi
33Roto-Rooter Plumbing & Water Cleanup584.8★ (2,560)23 mi
34Munoz services584.9★ (52)15 mi
35Elite Plumbing Services584.9★ (123)21 mi
36Kelly Plumbing585.0★ (35)14 mi
37O'Grady Plumbing584.9★ (173)23 mi
38Isackson Plumbing585.0★ (74)19 mi
39Andrew Pinos Plumbing584.4★ (7)3 mi
40Heise's Plumbing584.9★ (1,454)23 mi
41Bay Ridge Plumbing INC.575.0★ (6)5 mi
42Works Plumbing Repair & Drain Cleaning574.6★ (99)19 mi
43Local Plumbing575.0★ (211)14 mi
44Repipe Specialists of the Bay Area574.5★ (64)16 mi
45AR Plumbing Inc575.0★ (8)8 mi
46Roto-Rooter Plumbing & Water Cleanup574.8★ (313)14 mi
47Bayside plumbing574.5★ (15)10 mi
48Cabrillo Plumbing, Heating & Air574.9★ (966)23 mi
49Wilson's Plumbing575.0★ (3)3 mi
50Cal-Delta Plumbing575.0★ (20)14 mi

How we ranked emergency plumbers in Lucas Valley-Marinwood

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 Lucas Valley-Marinwood: questions

Which plumbers in Lucas Valley-Marinwood are open 24/7?

25 on this list post 24/7 hours, including Marin Roto-Rooter, S Waters Plumbing, EO Plumbing Service, Advanced Plumbing & Drain and Fast Local Plumbers.

Who is ranked #1 for emergency plumbing in Lucas Valley-Marinwood, CA?

Marin Roto-Rooter is #1, with a CR Score of 65 out of 100 on emergency weights.

How are emergency plumbers in Lucas Valley-Marinwood 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 Lucas Valley-Marinwood

  1. October 2026: CR Scores recalculated for 386 plumbers serving Lucas Valley-Marinwood.

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