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ContractorsRanked

Best Plumbers in West Covina, CA (2026)

1,450 plumbers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in West Covina: Western Rooter & Plumbing, CR Score 92/100; 4.9★ from 1,562 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): Top Notch Plumbing Inc., posts 24/7 hours; ranked #2 of 1,450.

  3. 7

    Most-reviewed: Barker and Sons Plumbing & Rooter, 3,896 Google reviews at 4.8★, the most of 1,450 ranked; ranked #7.

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

1,450 West Covina plumbers are ranked here by CR Score, from 8 published factors. 764 are open 24/7, 1,192 open Saturdays and 953 open Sundays, based on posted hours. The median Google rating is 4.9★ across 1,450 rated businesses.

Top 10 plumbers in West Covina at a glance

Top 10 plumbers in West Covina at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Western Rooter & Plumbing924.9★ (1,562)Arcadia, 7 mi away24/7Overall
2Top Notch Plumbing Inc.925.0★ (515)Covina, 4 mi away24/7Emergencies
3Rooter Hero Plumbing & Air of San Gabriel Valley914.9★ (926)Diamond Bar, 8 mi away24/7—
4Rooter Hero Plumbing & Air914.9★ (1,637)Pomona, 11 mi away24/7—
5Drainflow Solutions & Plumbing915.0★ (276)Duarte, 5 mi away24/7—
6Merry Plumbing915.0★ (652)San Marino, 10 mi away24/7—
7Barker and Sons Plumbing & Rooter904.8★ (3,896)Anaheim, 16 mi away24/7Most reviews
8Roto-Rooter Plumbing & Water Cleanup904.9★ (375)Rowland Heights, 6 mi away24/7—
9Dymek's Freedom Plumbing, Inc905.0★ (1,063)Anaheim, 15 mi away24/7—
10Monkey Wrench Plumbing, Heating, Air & Electric904.9★ (253)Covina, 3 mi away24/7—

The 1,450 best plumbers in West Covina, ranked

Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.

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

  6. #6 Merry Plumbing

    Based in San Marino, 10 mi away

    91/100CR Score

    Ranked #6 because of its Google rating and availability: 5.0★ from 652 Google reviews, open 24/7.

    • 5.0★ from 652 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1465 San Marino Ave, San Marino, CA 91108
    View profile for Merry Plumbing(626) 414-5583

  21. #21 JB Plumbing

    Based in San Dimas, 8 mi away

    89/100CR Score

    Ranked #21 because of its Google rating and availability: 4.8★ from 396 Google reviews, open 24/7.

    • 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

Plumbers ranked #26 to #50

#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile. We publish the top 50 of 1,450 ranked plumbers here; the rest are on their profiles.

plumbers in West Covina, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Do It Right Plumbers894.8★ (1,980)18 mi
27Drain Great Plumbing Services895.0★ (94)6 mi
28Isaac & Sons Plumbing San Dimas895.0★ (124)8 mi
29Mr. Rooter Plumbing of Long Beach894.9★ (1,140)18 mi
30Graham Plumbing and Drain Cleaning, Inc.894.9★ (287)10 mi
31High Speed Plumbing894.8★ (542)11 mi
32Olson Superior Plumbing Santa Fe Springs894.9★ (272)10 mi
33PDS Plumbing and Air895.0★ (471)16 mi
34Holmer Plumbing & Drain, Inc895.0★ (173)11 mi
35Orange Coast Plumbing895.0★ (435)16 mi
36BigTime Plumber Service895.0★ (54)3 mi
37Option One Plumbing894.8★ (3,017)21 mi
38Roto-Rooter Plumbing & Water Cleanup894.9★ (436)14 mi
39JG Plumbing & Rooter Inc885.0★ (77)6 mi
40Martinez Plumbing884.9★ (53)2 mi
41Monkey Wrench Plumbing, Heating, Air & Electric885.0★ (160)11 mi
42Smart Choice Rooter885.0★ (68)5 mi
43SWE Sewer Solutions Construction & Engineering884.9★ (120)6 mi
44Mr. Rooter Plumbing of Orange County884.9★ (560)16 mi
45Roto-Rooter Plumbing & Water Cleanup884.9★ (417)14 mi
46Drainiacs Sewer and Drain884.8★ (295)10 mi
47Lang's Plumbing & Rooter, LLC884.9★ (37)In West Covina
48Redhead Rooter Plumbing Drain Cleaning & Hydrojetting885.0★ (302)16 mi
49RHS Plumbing & Drains.885.0★ (53)4 mi
50Rooter Hero Plumbing & Air of Anaheim884.8★ (1,233)18 mi

Also serving West Covina

20 more plumbers within 25 mi that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.

Unranked plumbers serving West Covina
BusinessGoogle ratingDistance
All Rooter Solutions5.0★ (2)2 mi
Constructix IncIn West Covina
Count-on Plumbing5.0★ (2)6 mi
Courtesy Plumbing4.8★ (387)4 mi
Discounted Rooter, West Covina CAIn West Covina
Hydro Backflow5.0★ (2)In West Covina
IRC PLUMBING INC5.0★ (2)9 mi
JC Plumbing Inc.5.0★ (2)11 mi
Jerez Plumbing | Emergency Plumber, Hydrojetting, Drain Cleaning, and Tankless Water Heater Repair in La Puente, CA5.0★ (92)4 mi
MB Plumbing5.0★ (2)9 mi
Mora Rooter5.0★ (2)12 mi
Nickerson Brothers Plumbing Co5.0★ (2)12 mi
North Brothers Plumbing5.0★ (130)5 mi
Plumber Addition La Puente CAIn West Covina
Plumber XP5.0★ (258)10 mi
Pre Cast Drain Box5.0★ (2)9 mi
Ramirez Handyman Service5.0★ (2)10 mi
Showtime-Vince Ruiz Plumbing4.5★ (2)3 mi
SJL Plumbing & Piping3.0★ (2)12 mi
Tankless Water heater Repair & Plumbing5.0★ (2)7 mi

How much do plumbers cost in West Covina?

National price ranges in USD, not adjusted for West Covina. Each row names its basis and the month we checked it.

How much do plumbers cost in West Covina?
JobLowTypicalHighBasisChecked
Water heater replacement$882$1,348$1,826Per unit, installed (unit plus labor); typical range of customer-reported jobs. US national rangeOctober 2026

How to check a plumber's license in California

In California, Contractors State License Board (CSLB) licenses C-36 Plumbing contractor license.

Jobs of $1,000 or more in labor and materials (from January 1, 2025).

  1. Search the business name or license number on the Contractors State License Board (CSLB) license lookup.
  2. Check that the status is active and the name matches the contract or truck.
  3. Ask for proof of insurance before work starts.

No chip usually means we have not matched a state record yet. Check the lookup yourself before you hire.

Guide checked October 2026. How we verify licenses

How we ranked West Covina plumbers

We scored 1,450 West Covina plumbers on 8 factors, weighted as shown. A business is ranked when its trade is confirmed and it has 3 or more Google reviews or a claimed profile. Unknown factors are left out of the score, not counted as zero. Scores last refreshed October 22, 2026.

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 fromIn West Covina data
Reputation35%Bayesian-adjusted Google star ratingMeasured
Credentials15%Active state license 0.6, bond 0.2, workers’ comp 0.2Not yet collected
Review volume10%log10(reviews + 1) against the list maximumMeasured
Recency10%Share of reviews from the last 12 monthsNot yet collected
Availability10%Weekly open hours, Saturday, Sunday, 24/7 or same-dayMeasured
Trade focus10%Google main category 1.0, business name 0.7, additional category 0.5Measured
Proximity5%1.0 when based in the city, falling to 0 at the trade’s radiusMeasured
Completeness5%Website, photos, description, hours, claimed profile (0.2 each)Measured

Plumbers in West Covina: frequently asked questions

Who is the best plumber in West Covina?

By CR Score, the highest-ranked plumber in West Covina, CA is Western Rooter & Plumbing with a CR Score of 92/100. It has 4.9★ from 1,562 Google reviews. It is open 24/7. Top Notch Plumbing Inc. (#2) and Rooter Hero Plumbing & Air of San Gabriel Valley (#3) follow. We ranked 1,450 plumbers on 8 factors, last updated October 22, 2026.

How many plumbers are there in West Covina?

ContractorsRanked ranks 1,450 plumbers serving West Covina, CA. 2 of them are based in West Covina; the rest serve it from nearby towns. Another 20 within 25 mi are listed but not ranked yet. Counts are as of October 2026.

Which plumbers in West Covina are open 24/7?

764 ranked plumbers in West Covina post 24/7 hours. The highest-ranked are Western Rooter & Plumbing (#1), Top Notch Plumbing Inc. (#2) and Rooter Hero Plumbing & Air of San Gabriel Valley (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which plumbers in West Covina work on weekends?

1,192 of 1,450 ranked plumbers post Saturday hours and 953 post Sunday hours. The highest-ranked open Saturdays are Western Rooter & Plumbing (#1), Top Notch Plumbing Inc. (#2) and Rooter Hero Plumbing & Air of San Gabriel Valley (#3). Posted hours are office hours; crews may book weekend jobs separately.

How do I check a plumber's license in California?

In California, Contractors State License Board (CSLB) handles licensing and covers C-36 Plumbing contractor license. Search the business or license number at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/CheckLicense.aspx. Jobs of $1,000 or more in labor and materials (from January 1, 2025).

How much does water heater replacement cost in West Covina?

Water heater replacement typically costs $882 to $1,826, with $1,348 typical (Per unit, installed (unit plus labor); typical range of customer-reported jobs. US national range). This is a national range, not adjusted for West Covina. Prices were last checked October 2026. Get at least two written quotes before you hire.

What Google rating do West Covina plumbers have?

The median Google rating among 1,450 rated plumbers in West Covina is 4.9★, with a median of 21 reviews. Barker and Sons Plumbing & Rooter has the most, 3,896 reviews, and ranks #7. We adjust ratings for review count, so a few five-star reviews cannot top the list.

How does ContractorsRanked rank plumbers?

Each plumber gets a 0–100 CR Score from 8 published factors, led by reputation (35%), credentials (15%), review volume (10%) and recency (10%). Factors we cannot measure are left out, not scored as zero. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.

Update log for West Covina

  1. October 2026: CR Scores recalculated for 1,450 plumbers serving West Covina.
  2. October 2026: 16 duplicate listings merged.

More plumbers and West Covina pages

Other trades in West Covina