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ContractorsRanked

Best Plumbers in Clayton, CA (2026)

511 plumbers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in Clayton: In Demand Plumbing, CR Score 65/100; 4.9★ from 1,464 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): Plumbing Care Inc, posts 24/7 hours; ranked #2 of 511.

  3. 29

    Most-reviewed: Service Champions, 5,220 Google reviews at 4.9★, the most of 511 ranked; ranked #29.

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

511 Clayton plumbers are ranked here by CR Score, from ten published factors. 179 are open 24/7, 343 open Saturdays and 240 open Sundays, based on posted hours. The median Google rating is 4.9★ across 511 rated businesses.

Top 10 plumbers in Clayton at a glance

Top 10 plumbers in Clayton at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1In Demand Plumbing654.9★ (1,464)Antioch, 4 mi away24/7Overall
2Plumbing Care Inc644.9★ (1,948)San Ramon, 12 mi away24/7Emergencies
3Service Pros Plumbers, Inc.645.0★ (499)Concord, 7 mi away24/7—
4Water Heaters Only, Inc645.0★ (514)Concord, 7 mi away24/7—
5Rooter Hero Plumbing & Air634.8★ (1,291)Antioch, 8 mi away24/7—
6Bay Area Plumbing BAP Inc.635.0★ (244)Concord, 7 mi away24/7—
7Rooter Hero Plumbing & Air of Martinez624.8★ (1,092)Martinez, 11 mi away24/7—
8Phast rooter & plumbing625.0★ (127)Concord, 3 mi away24/7—
9Service Pros Plumbers, Inc.624.8★ (427)Antioch, 8 mi away24/7—
10JNJ Rooter and Plumbing LLC625.0★ (261)Alamo, 4 mi away24/7—

The 511 best plumbers in Clayton, ranked

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

Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.

  2. #2 Plumbing Care Inc

    Based in San Ramon, 12 mi away

    64/100CR Score

    Ranked #2 because of its Google rating and trade focus: 4.9★ from 1,948 Google reviews, listed on Google as “Plumber”.

    • 4.9★ from 1,948 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    2415 San Ramon Valley Blvd UNIT 312, San Ramon, CA 94583
    View profile for Plumbing Care Inc(925) 255-6352

  14. #14 Flow Pro Plumbing

    Based in Brentwood, 13 mi away

    61/100CR Score

    Ranked #14 because of its Google rating and trade focus: 4.9★ from 879 Google reviews, listed on Google as “Plumber”.

    • 4.9★ from 879 Google reviews
    Hours
    Mon–Fri 8 AM–6 PM · Sat 10 AM–6 PM · Sun 8 AM–6 PM
    Address
    103 Technology Ct Suite H, Brentwood, CA 94513
    View profile for Flow Pro Plumbing(925) 435-1081

  15. #15 Oak Plumbing

    Based in Pleasant Hill, 7 mi away

    61/100CR Score

    Ranked #15 because of its Google rating and trade focus: 5.0★ from 80 Google reviews, listed on Google as “Plumber”.

    • 5.0★ from 80 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    3478 Buskirk Ave Suite 49, Pleasant Hill, CA 94523
    View profile for Oak Plumbing(925) 230-4324

  20. #20 A1 Phoenix Plumbing

    Based in Pittsburg, 6 mi away

    61/100CR Score

    Ranked #20 because of its Google rating and trade focus: 4.9★ from 801 Google reviews, listed on Google as “Plumber”.

    • 4.9★ from 801 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat 8 AM–1 PM · Sun closed
    Address
    981 Garcia Ave Suite B, Pittsburg, CA 94565
    View profile for A1 Phoenix Plumbing(925) 756-5598

  23. #23 R.B. Travis

    Based in Livermore, 20 mi away

    60/100CR Score

    Ranked #23 because of its Google rating and trade focus: 4.8★ from 824 Google reviews, listed on Google as “Plumber”.

    • 4.8★ from 824 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    4935 Southfront Rd A, Livermore, CA 94551
    View profile for R.B. Travis(925) 369-5438

  24. #24 Plumbing Geek

    Based in Concord, 2 mi away

    60/100CR Score

    Ranked #24 because of its Google rating and trade focus: 5.0★ from 161 Google reviews, listed on Google as “Plumber”.

    • 5.0★ from 161 Google reviews
    Hours
    Mon–Fri 7:30 AM–6 PM · Sat 8 AM–4 PM · Sun closed
    Address
    5024 Concord Blvd, Concord, CA 94521
    View profile for Plumbing Geek(925) 270-7492

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 511 ranked plumbers here; the rest are on their profiles.

plumbers in Clayton, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Plumbing Solutions604.9★ (149)7 mi
27Almighty Plumbing605.0★ (330)7 mi
28Mr. Rooter Plumbing of The Tri-Valley604.8★ (271)15 mi
29Service Champions604.9★ (5,220)10 mi
30URV Projects Plumbing Service595.0★ (248)19 mi
31Americana Plumbing Solutions Inc595.0★ (37)6 mi
32Jazz Heating, Air Conditioning and Plumbing594.9★ (3,438)18 mi
33Class A Drain Plumbing & Rooter594.8★ (44)5 mi
34Water Heaters Only, Inc594.9★ (531)23 mi
35Pittsburg Pipe & Plumbing595.0★ (30)7 mi
36Quality Plumbing & Rooter.594.9★ (328)8 mi
37Top Notch Plumber Concord CA595.0★ (43)3 mi
38Five Star Concord Plumbers595.0★ (53)5 mi
39Water Heaters Masters Inc.594.9★ (94)7 mi
40Prime Time Plumbing595.0★ (50)11 mi
41All Concord Plumbing Solution595.0★ (27)7 mi
42Fast Water Heater Company594.9★ (1,240)23 mi
43Water Heaters Only, Inc595.0★ (187)21 mi
44Local Plumbing Service & Hydrojetting Repair594.9★ (61)12 mi
45Roto-Rooter Plumbing & Water Cleanup585.0★ (191)21 mi
46Big Blue Plumbing584.7★ (575)22 mi
47Absolute Plumbing And Drain584.8★ (512)10 mi
48Superior Concord Plumbers585.0★ (21)7 mi
49Dollar Plumbing584.9★ (73)14 mi
50Barnett Plumbing & Water Heaters584.9★ (1,239)19 mi

Also serving Clayton

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 Clayton
BusinessGoogle ratingDistance
Accomplish Water Heater Service5.0★ (33)11 mi
Allen & Sons Plumbing4.8★ (137)18 mi
AR PLUMBING LLC5.0★ (2)7 mi
Bay Plumbing DoctorIn Clayton
Clayton Valley Mechanical Heating5.0★ (4)In Clayton
Clear Water Mechanical Plumbing & Underground5.0★ (2)6 mi
Cruz & Companies4.9★ (56)14 mi
Essential Engineering Plumbing & Rooter5.0★ (2)5 mi
Independent Leak Detection5.0★ (2)7 mi
MG Bay Area Construction5.0★ (2)10 mi
Monarch Plumbing and Rooter Inc4.9★ (248)23 mi
Mr Drain Plumbing of Oakley3.0★ (2)12 mi
Plumbing Walnut Creek3.0★ (2)7 mi
Rooter-Man5.0★ (2)5 mi
Stanton Plumbing5.0★ (2)1 mi
The Plumbers Brothers And Rooter, Inc5.0★ (2)2 mi
Valentino Plumbing & Drain4.9★ (15)6 mi
Voda Plumbing Inc3.0★ (2)4 mi
Water heater service pro LLC3.0★ (2)13 mi
White Water Plumbing3.0★ (2)8 mi

How much do plumbers cost in Clayton?

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

How much do plumbers cost in Clayton?
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 Clayton plumbers

We scored 511 Clayton plumbers on ten 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. A business with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, 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 Clayton data
Reputation25%Google star rating, adjusted for how many reviews back itMeasured
Credentials15%Active state license, bond and workers’ comp on fileNot yet collected
Review volume10%Number of Google reviews, compared with the most-reviewed business on the listMeasured
Recency5%Share of reviews from the last 12 monthsNot yet collected
Availability5%Weekly open hours, Saturday, Sunday, 24/7 or same-dayMeasured
Trade focus10%How clearly the business does this trade (its Google category and name)Measured
Proximity5%Based in the city scores highest, less the farther away it isMeasured
Claimed profile10%The business has claimed its ContractorsRanked profile (free or paid earn the same)Measured
Partnered5%The business links to ContractorsRanked from its own website with our badge, checked periodicallyMeasured
ContractorsRanked reviews10%Verified customer reviews collected by ContractorsRanked: their rating and how many there areMeasured

Plumbers in Clayton: frequently asked questions

Who is the best plumber in Clayton?

By CR Score, the highest-ranked plumber in Clayton, CA is In Demand Plumbing with a CR Score of 65/100. It has 4.9★ from 1,464 Google reviews. It is open 24/7. Plumbing Care Inc (#2) and Service Pros Plumbers, Inc. (#3) follow. We ranked 511 plumbers on ten factors, last updated October 22, 2026.

How many plumbers are there in Clayton?

ContractorsRanked ranks 511 plumbers serving Clayton, CA. Another 20 within 25 mi are listed but not ranked yet. Counts are as of October 2026.

Which plumbers in Clayton are open 24/7?

179 ranked plumbers in Clayton post 24/7 hours. The highest-ranked are In Demand Plumbing (#1), Plumbing Care Inc (#2) and Service Pros Plumbers, Inc. (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which plumbers in Clayton work on weekends?

343 of 511 ranked plumbers post Saturday hours and 240 post Sunday hours. The highest-ranked open Saturdays are In Demand Plumbing (#1), Plumbing Care Inc (#2) and Service Pros Plumbers, Inc. (#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 Clayton?

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 Clayton. Prices were last checked October 2026. Get at least two written quotes before you hire.

What Google rating do Clayton plumbers have?

The median Google rating among 511 rated plumbers in Clayton is 4.9★, with a median of 21 reviews. Service Champions has the most, 5,220 reviews, and ranks #29. 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 ten published factors, led by reputation (25%), credentials (15%), review volume (10%) and trade focus (10%). A business with no Google reviews scores zero on rating, review volume and recency; other factors we cannot measure are left out. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.

Update log for Clayton

  1. October 2026: CR Scores recalculated for 511 plumbers serving Clayton.
  2. October 2026: 8 duplicate listings merged.

More plumbers and Clayton pages

Other trades in Clayton