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Emergency Plumbers in Cotati, CA (2026)

Top 50 of 227 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 Cotati: Mr. Rooter Plumbing of Sonoma County, 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 Cotati at a glance

Top emergency plumbers in Cotati at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Mr. Rooter Plumbing of Sonoma County654.9★ (923)Santa Rosa, 8 mi away24/7
2Roto-Rooter Plumbing & Water Cleanup654.7★ (393)Cotati24/7
3Elite Plumbing Services644.9★ (123)Cotati24/7
4Marin Roto-Rooter634.9★ (1,033)Novato, 17 mi away24/7
5Redwood Sewer & Drain Services635.0★ (163)Larkfield-Wikiup, 7 mi away24/7
6KC Home Services Plumbing, Heating & AC Repair624.9★ (827)Santa Rosa, 6 mi away24/7
7West Coast Plumbing624.9★ (90)Santa Rosa, 6 mi away24/7
8Mr Plumber624.9★ (30)Cotati24/7
9S Waters Plumbing615.0★ (210)Lucas Valley-Marinwood, 15 mi away24/7
10United States Plumbing615.0★ (66)Santa Rosa, 7 mi away24/7

Call an emergency plumber in Cotati 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 Cotati, 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 227 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.

  4. #4 Marin Roto-Rooter

    Based in Novato, 17 mi away

    63/100CR Score

    Ranked #4 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

  7. #7 West Coast Plumbing

    Based in Santa Rosa, 6 mi away

    62/100CR Score

    Ranked #7 because of its Google rating and trade focus: 4.9★ from 90 Google reviews, listed on Google as “Plumber”.

    • 4.9★ from 90 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    374 Yolanda Ave Suite D, Santa Rosa, CA 95404
    View profile for West Coast Plumbing(707) 750-9900

  8. #8 Mr Plumber

    Based in Cotati

    62/100CR Score

    Ranked #8 because of its Google rating and trade focus: 4.9★ from 30 Google reviews, listed on Google as “Plumber”.

    • 4.9★ from 30 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    View profile for Mr Plumber(707) 695-0016

  12. #12 Northbound Plumbing

    Based in Santa Rosa, 3 mi away

    61/100CR Score

    Ranked #12 because of its Google rating and trade focus: 5.0★ from 23 Google reviews, listed on Google as “Plumber”.

    • 5.0★ from 23 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    5989 Petaluma Hill Rd, Santa Rosa, CA 95404
    View profile for Northbound Plumbing(707) 806-6991

  14. #14 Ongaro & Sons

    Based in Santa Rosa, 8 mi away

    60/100CR Score

    Ranked #14 because of its Google rating and review volume: 4.9★ from 1,222 Google reviews.

    • 4.9★ from 1,222 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    250 D St Suite 700B, Santa Rosa, CA 95404
    View profile for Ongaro & Sons(707) 908-9208

  21. #21 Ongaro & Sons

    Based in Petaluma, 6 mi away

    59/100CR Score

    Ranked #21 because of its Google rating and review volume: 4.9★ from 538 Google reviews.

    • 4.9★ from 538 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    719 Southpoint Blvd, Petaluma, CA 94954
    View profile for Ongaro & Sons(707) 633-9499

  23. #23 Sewer Line Survey

    Based in Santa Rosa, 8 mi away

    59/100CR Score

    Ranked #23 because of its Google rating and trade focus: 5.0★ from 18 Google reviews, listed on Google as “Plumber”.

    • 5.0★ from 18 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1007 W College Ave #143, Santa Rosa, CA 95401
    View profile for Sewer Line Survey(707) 620-3955

Top 50 of 227 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 Cotati, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Owens & Sons Plumbing594.6★ (55)14 mi
27Santa Rosa Plumbing595.0★ (4)In Cotati
28Fast Local Plumbers584.7★ (83)18 mi
29Finetti Plumbing & Backflow585.0★ (13)8 mi
30Nor Cal Leaks583.4★ (5)In Cotati
31Flow Elite Plumbing & Hydronic Heating585.0★ (21)13 mi
32Bellows Plumbing, Heating, Cooling & Electrical584.9★ (480)20 mi
33Henry Mechanical575.0★ (866)15 mi
34Bragg Home Services574.9★ (486)11 mi
35Nor Cal leaks575.0★ (7)8 mi
36Clear Wood Plumbing LLC575.0★ (6)7 mi
37Flowright Plumbing575.0★ (22)17 mi
38Northen Sewer and Drain575.0★ (4)8 mi
39Bayside plumbing564.5★ (15)15 mi
40Taurian Construction565.0★ (7)12 mi
41Brush Creek Plumbing564.9★ (10)15 mi
42Milano Mechanical565.0★ (82)5 mi
43Rich your Local Handyman Services565.0★ (4)10 mi
44Steve Silva Plumbing Inc564.6★ (49)24 mi
45Peter Piper's Plumbing and Drain Cleaning Service553.4★ (17)15 mi
46ABC Sewer & Drain554.4★ (59)25 mi
47John Gleason Plumbing, Inc555.0★ (13)20 mi
48Herrera Plumbing LLC555.0★ (5)15 mi
49Newline Plumbing, LLC555.0★ (7)18 mi
50The Cardenas Plumbing555.0★ (7)19 mi

How we ranked emergency plumbers in Cotati

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 Cotati: questions

Which plumbers in Cotati are open 24/7?

25 on this list post 24/7 hours, including Mr. Rooter Plumbing of Sonoma County, Roto-Rooter Plumbing & Water Cleanup, Elite Plumbing Services, Marin Roto-Rooter and Redwood Sewer & Drain Services.

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

Mr. Rooter Plumbing of Sonoma County is #1, with a CR Score of 65 out of 100 on emergency weights.

How are emergency plumbers in Cotati 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 Cotati

  1. October 2026: CR Scores recalculated for 227 plumbers serving Cotati.
  2. October 2026: 1 duplicate listing merged.

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