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Emergency Plumbers in San Dimas, CA (2026)

Top 50 of 1,049 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 Dimas: Rooter Hero Plumbing & Air, 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 Dimas at a glance

Top emergency plumbers in San Dimas at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Rooter Hero Plumbing & Air654.9★ (1,637)Pomona, 4 mi away24/7
2Top Notch Plumbing Inc.645.0★ (515)Covina, 4 mi away24/7
3JB Plumbing644.8★ (396)San Dimas24/7
4High Speed Plumbing644.8★ (542)Pomona, 4 mi away24/7
5Rooter Hero Plumbing & Air of San Gabriel Valley644.9★ (926)Diamond Bar, 8 mi away24/7
624 Rooter & Plumbing, Inc.635.0★ (346)Claremont, 4 mi away24/7
7Option One Plumbing634.8★ (3,017)Rancho Cucamonga, 14 mi away24/7
8Western Rooter & Plumbing634.9★ (1,562)Arcadia, 13 mi away24/7
9Barker and Sons Plumbing & Rooter634.8★ (3,896)Anaheim, 17 mi away24/7
10Isaac & Sons Plumbing San Dimas635.0★ (124)San Dimas24/7

Call an emergency plumber in San Dimas 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 Dimas, 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 1,049 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.

  3. #3 JB Plumbing

    Based in San Dimas

    64/100CR Score

    Ranked #3 because of its Google rating and trade focus: 4.8★ from 396 Google reviews, listed on Google as “Plumber”.

    • 4.8★ from 396 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    515 W Allen Ave #13, San Dimas, CA 91773
    View profile for JB Plumbing(909) 592-8487

  7. #7 Option One Plumbing

    Based in Rancho Cucamonga, 14 mi away

    63/100CR Score

    Ranked #7 because of its Google rating and trade focus: 4.8★ from 3,017 Google reviews, listed on Google as “Plumber”.

    • 4.8★ from 3,017 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    10722 Arrow Route STE 602, Rancho Cucamonga, CA 91730
    View profile for Option One Plumbing(800) 905-7115

  11. #11 Courtesy Plumbing

    Based in Covina, 4 mi away

    63/100CR Score

    Ranked #11 because of its Google rating and trade focus: 4.8★ from 387 Google reviews, listed on Google as “Plumber”.

    • 4.8★ from 387 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    601 E Edna Pl, Covina, CA 91723
    View profile for Courtesy Plumbing(626) 967-5655

  23. #23 AK Plumbing

    Based in Arcadia, 2 mi away

    62/100CR Score

    Ranked #23 because of its Google rating and trade focus: 5.0★ from 70 Google reviews, listed on Google as “Plumber”.

    • 5.0★ from 70 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    View profile for AK Plumbing(626) 314-1520

Top 50 of 1,049 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 Dimas, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Do It Right Plumbers614.8★ (1,980)20 mi
27Drainflow Solutions & Plumbing615.0★ (276)11 mi
28Eaton Family Plumbers614.8★ (143)5 mi
29Biard & Crockett Plumbing, Heating, and Air Conditioning614.9★ (1,715)21 mi
30JG Plumbing & Rooter Inc615.0★ (77)4 mi
31Merry Plumbing615.0★ (652)17 mi
32Ramco Plumbing Heating & Air615.0★ (262)12 mi
33Service Hero Plumbing, HVAC, and Electrical614.8★ (1,506)4 mi
34Western Rooter & Plumbing614.9★ (147)7 mi
35Daley Plumbing615.0★ (144)9 mi
36Hassle Free Plumbing614.9★ (266)11 mi
37AS Plumbing Mechanical615.0★ (618)18 mi
38High speed rooter & plumbing615.0★ (109)8 mi
39Peli Plumbing615.0★ (229)12 mi
40The Rooter Company614.9★ (350)14 mi
41Bobby Blue Plumbing Rancho Cucamonga614.9★ (354)14 mi
42Accurate Electric, Plumbing, Heating and Air614.9★ (951)5 mi
43Hydro Brothers Jetter & Drains614.9★ (59)4 mi
44All Pro Cooling, Heating, Plumbing & Electrical604.8★ (7,425)15 mi
45Roto-Rooter Plumbing & Water Cleanup604.8★ (1,128)20 mi
46High Speed Rooter & Plumbing604.8★ (362)14 mi
47I Love Sewers Rooter And Plumbing Sewer Specialties Inc604.9★ (200)12 mi
48Rooter Hero Plumbing & Air of Anaheim604.8★ (1,233)21 mi
49Roto-Rooter Plumbing & Water Cleanup604.8★ (936)19 mi
50Utility Plumbing Services605.0★ (219)14 mi

How we ranked emergency plumbers in San Dimas

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 Dimas: questions

Which plumbers in San Dimas are open 24/7?

25 on this list post 24/7 hours, including Rooter Hero Plumbing & Air, Top Notch Plumbing Inc., JB Plumbing, High Speed Plumbing and Rooter Hero Plumbing & Air of San Gabriel Valley.

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

Rooter Hero Plumbing & Air is #1, with a CR Score of 65 out of 100 on emergency weights.

How are emergency plumbers in San Dimas 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 Dimas

  1. October 2026: CR Scores recalculated for 1,049 plumbers serving San Dimas.
  2. October 2026: 9 duplicate listings merged.

More emergency and plumbing pages