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Emergency Plumbers in Rancho Cucamonga, CA (2026)

Top 50 of 790 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 Rancho Cucamonga: Option One Plumbing, 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 Rancho Cucamonga at a glance

Top emergency plumbers in Rancho Cucamonga at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Option One Plumbing954.8★ (3,017)Rancho Cucamonga24/7
2Scott McLeod Plumbing, Inc.934.9★ (756)Rancho Cucamonga24/7
3Bow Tie Plumbing & Rooter935.0★ (334)Rancho Cucamonga24/7
4Ramco Plumbing Heating & Air925.0★ (262)Rancho Cucamonga24/7
5Bobby Blue Plumbing Rancho Cucamonga924.9★ (354)Rancho Cucamonga24/7
6Rooter Hero Plumbing & Air924.9★ (1,637)Pomona, 9 mi away24/7
7AS Plumbing Mechanical925.0★ (618)Fontana, 6 mi away24/7
8Peli Plumbing925.0★ (229)Rancho Cucamonga24/7
9Utility Plumbing Services925.0★ (219)Rancho Cucamonga24/7
10Redhead Rooter Plumbing Drain Cleaning & Hydrojetting915.0★ (302)Upland, 5 mi away24/7

Call an emergency plumber in Rancho Cucamonga 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 Rancho Cucamonga, 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 790 is on the plumbers page.

Scores below: based on 6 of 8 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.

  1. Ranked #1 in Rancho Cucamonga

    #1 Option One Plumbing

    Based in Rancho Cucamonga

    95/100CR Score

    Ranked #1 because of its Google rating and availability: 4.8★ from 3,017 Google reviews, open 24/7.

    • 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

  8. #8 Peli Plumbing

    Based in Rancho Cucamonga

    92/100CR Score

    Ranked #8 because of its Google rating and availability: 5.0★ from 229 Google reviews, open 24/7.

    • 5.0★ from 229 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    9771 Feron Blvd, Rancho Cucamonga, CA 91730
    View profile for Peli Plumbing(909) 485-2110

Top 50 of 790 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 Rancho Cucamonga, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Barker and Sons Plumbing & Rooter894.8★ (3,896)22 mi
27First Class Plumbing & AC894.9★ (784)16 mi
28High speed rooter & plumbing895.0★ (109)6 mi
29Plumb Rite Plumbing894.8★ (65)In Rancho Cucamonga
30Roto-Rooter Plumbing & Water Cleanup894.8★ (936)15 mi
31Top Notch Plumbing Inc.895.0★ (515)16 mi
32Vera Plumbing and Drain LLC895.0★ (133)9 mi
33VK PLUMBING895.0★ (38)In Rancho Cucamonga
34Mr. Rooter Plumbing of Riverside894.8★ (433)12 mi
35Regal Plumbing & Rooter894.8★ (121)5 mi
36A O Dowd Plumbing895.0★ (149)10 mi
37Amazing Force Plumbing & Backflow LLC895.0★ (322)15 mi
38Discount Plumbing895.0★ (36)1 mi
39Top Tier Plumbing & Air LLC894.9★ (607)16 mi
40Plumbing Concepts, Inc.884.9★ (442)15 mi
41Mr. Rooter Plumbing of Riverside884.9★ (496)16 mi
42JB Plumbing884.8★ (396)13 mi
43Klaus & Sons Plumbing, Heating & Air Conditioning884.9★ (977)5 mi
44RD Plumbing and Rooter885.0★ (279)15 mi
45Dymek's Freedom Plumbing, Inc885.0★ (1,063)23 mi
46Roto-Rooter Plumbing & Water Cleanup884.8★ (1,330)5 mi
47All tankless water heater and plumbing884.9★ (100)3 mi
48Rapid Rescue Rooter and plumbing885.0★ (82)8 mi
49Elite Plumbing Pros885.0★ (174)13 mi
50Hometown Plumbing Services885.0★ (44)4 mi

How we ranked emergency plumbers in Rancho Cucamonga

Emergency lists move 10 points of the CR Score from reputation to availability: 25% and 20%. 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
Reputation25%Bayesian-adjusted Google star rating
Credentials15%Active state license 0.6, bond 0.2, workers’ comp 0.2
Review volume10%log10(reviews + 1) against the list maximum
Recency10%Share of reviews from the last 12 months
Availability20%Weekly open hours, Saturday, Sunday, 24/7 or same-day
Trade focus10%Google main category 1.0, business name 0.7, additional category 0.5
Proximity5%1.0 when based in the city, falling to 0 at the trade’s radius
Completeness5%Website, photos, description, hours, claimed profile (0.2 each)

Emergency plumbers in Rancho Cucamonga: questions

Which plumbers in Rancho Cucamonga are open 24/7?

25 on this list post 24/7 hours, including Option One Plumbing, Scott McLeod Plumbing, Inc., Bow Tie Plumbing & Rooter, Ramco Plumbing Heating & Air and Bobby Blue Plumbing Rancho Cucamonga.

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

Option One Plumbing is #1, with a CR Score of 95 out of 100 on emergency weights.

How are emergency plumbers in Rancho Cucamonga ranked?

Emergency lists move 10 points of the CR Score from reputation to availability: 25% and 20%. 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 Rancho Cucamonga

  1. October 2026: CR Scores recalculated for 790 plumbers serving Rancho Cucamonga.
  2. October 2026: 7 duplicate listings merged.

More emergency and plumbing pages