64/100CR Score
Ranked #1 because of its Google rating and trade focus: 4.9★ from 1,637 Google reviews, listed on Google as “Plumber”.
- 4.9★ from 1,637 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2040 N Towne Ave, Pomona, CA 91767
Best Plumbers in Los Serranos, CA (2026)
1,371 plumbers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Los Serranos: Rooter Hero Plumbing & Air, CR Score 64/100; 4.9★ from 1,637 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Barker and Sons Plumbing & Rooter, posts 24/7 hours; ranked #2 of 1,371.
- 37
Most-reviewed: All Pro Cooling, Heating, Plumbing & Electrical, 7,425 Google reviews at 4.8★, the most of 1,371 ranked; ranked #37.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
1,371 Los Serranos plumbers are ranked here by CR Score, from ten published factors. 702 are open 24/7, 1,110 open Saturdays and 868 open Sundays, based on posted hours. The median Google rating is 5.0★ across 1,371 rated businesses.
Top 10 plumbers in Los Serranos at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Rooter Hero Plumbing & Air | 64 | 4.9★ (1,637) | Pomona, 8 mi away | 24/7 | Overall |
| 2 | Barker and Sons Plumbing & Rooter | 64 | 4.8★ (3,896) | Anaheim, 11 mi away | 24/7 | Emergencies |
| 3 | Option One Plumbing | 63 | 4.8★ (3,017) | Rancho Cucamonga, 12 mi away | 24/7 | — |
| 4 | Rooter Hero Plumbing & Air of San Gabriel Valley | 63 | 4.9★ (926) | Diamond Bar, 8 mi away | 24/7 | — |
| 5 | Dymek's Freedom Plumbing, Inc | 63 | 5.0★ (1,063) | Anaheim, 12 mi away | 24/7 | — |
| 6 | Biard & Crockett Plumbing, Heating, and Air Conditioning | 63 | 4.9★ (1,715) | Orange, 14 mi away | 24/7 | — |
| 7 | Do It Right Plumbers | 62 | 4.8★ (1,980) | Orange, 13 mi away | 24/7 | — |
| 8 | Roto-Rooter Plumbing & Water Cleanup | 62 | 4.8★ (936) | Corona, 9 mi away | 24/7 | — |
| 9 | Scott McLeod Plumbing, Inc. | 62 | 4.9★ (756) | Rancho Cucamonga, 10 mi away | 24/7 | — |
| 10 | AYS Plumbing & Rooter | 62 | 4.9★ (1,726) | Upland, 9 mi away | Sat · Sun · Evenings | — |
The 1,371 best plumbers in Los Serranos, 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.
Based in Anaheim, 11 mi away
64/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.8★ from 3,896 Google reviews, listed on Google as “Plumber”.
- 4.8★ from 3,896 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3900 E Miraloma Ave, Anaheim, CA 92806
Based in Rancho Cucamonga, 12 mi away
63/100CR ScoreRanked #3 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
Based in Diamond Bar, 8 mi away
63/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.9★ from 926 Google reviews, listed on Google as “Plumber”.
- 4.9★ from 926 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1370 Valley Vista Dr Suite 200A, Diamond Bar, CA 91765
Based in Anaheim, 12 mi away
63/100CR ScoreRanked #5 because of its Google rating and trade focus: 5.0★ from 1,063 Google reviews, listed on Google as “Plumber”.
- 5.0★ from 1,063 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2921 E Miraloma Ave #17, Anaheim, CA 92806
Based in Orange, 14 mi away
63/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.9★ from 1,715 Google reviews, listed on Google as “Plumber”.
- 4.9★ from 1,715 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 320 E Katella Ave Suite P, Orange, CA 92867
Based in Orange, 13 mi away
62/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.8★ from 1,980 Google reviews, listed on Google as “Plumber”.
- 4.8★ from 1,980 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2284 Glassell St, Orange, CA 92865
Based in Corona, 9 mi away
62/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.8★ from 936 Google reviews, listed on Google as “Plumber”.
- 4.8★ from 936 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1501 Railroad St, Corona, CA 92878
Based in Rancho Cucamonga, 10 mi away
62/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.9★ from 756 Google reviews, listed on Google as “Plumber”.
- 4.9★ from 756 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 8222 Foothill Blvd, Rancho Cucamonga, CA 91730
Based in Upland, 9 mi away
62/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.9★ from 1,726 Google reviews, listed on Google as “Plumber”.
- 4.9★ from 1,726 Google reviews
- Hours
- Mon–Sun 8 AM–8 PM
- Address
- 260 N Corporate Way, Upland, CA 91786
Based in Corona, 8 mi away
62/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.9★ from 442 Google reviews, listed on Google as “Plumber”.
- 4.9★ from 442 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2445 Railroad St, Corona, CA 92878
Based in Claremont, 10 mi away
62/100CR ScoreRanked #12 because of its Google rating and trade focus: 5.0★ from 346 Google reviews, listed on Google as “Plumber”.
- 5.0★ from 346 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3628 Lynoak Dr #201, Claremont, CA 91711
Based in Upland, 9 mi away
62/100CR ScoreRanked #13 because of its Google rating and trade focus: 5.0★ from 302 Google reviews, listed on Google as “Plumber”.
- 5.0★ from 302 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 517 N Mountain Ave, Upland, CA 91786
Based in Pomona, 8 mi away
62/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.8★ from 542 Google reviews, listed on Google as “Plumber”.
- 4.8★ from 542 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 111 E Arrow Hwy, Pomona, CA 91767
Based in Anaheim, 10 mi away
62/100CR ScoreRanked #15 because of its Google rating and trade focus: 5.0★ from 310 Google reviews, listed on Google as “Plumber”.
- 5.0★ from 310 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 5150 E La Palma Ave, Anaheim, CA 92807
Based in Corona, 8 mi away
62/100CR ScoreRanked #16 because of its Google rating and trade focus: 5.0★ from 211 Google reviews, listed on Google as “Plumber”.
- 5.0★ from 211 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2445 Railroad St Unit #A, Corona, CA 92878
Based in Covina, 13 mi away
62/100CR ScoreRanked #17 because of its Google rating and trade focus: 5.0★ from 515 Google reviews, listed on Google as “Plumber”.
- 5.0★ from 515 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 4903 N Vecino Dr, Covina, CA 91722
Based in Corona, 11 mi away
62/100CR ScoreRanked #18 because of its Google rating and trade focus: 5.0★ from 322 Google reviews, listed on Google as “Plumber”.
- 5.0★ from 322 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 791 Allen Dr, Corona, CA 92879
#19 Daley Plumbing
Based in Arcadia, 6 mi away
62/100CR ScoreRanked #19 because of its Google rating and trade focus: 5.0★ from 144 Google reviews, listed on Google as “Plumber”.
- 5.0★ from 144 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Lake Forest, 22 mi away
61/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.9★ from 2,764 Google reviews, listed on Google as “Plumber”.
- 4.9★ from 2,764 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 19 Spectrum Pointe Dr, Lake Forest, CA 92630
Based in Anaheim, 13 mi away
61/100CR ScoreRanked #21 because of its Google rating and trade focus: 5.0★ from 435 Google reviews, listed on Google as “Plumber”.
- 5.0★ from 435 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Orange, 12 mi away
61/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.9★ from 1,582 Google reviews, listed on Google as “Plumber”.
- 4.9★ from 1,582 Google reviews
- Hours
- Mon–Sun 7 AM–7 PM
- Address
- 1238 E Baldwin Ave, Orange, CA 92865
Based in Fontana, 16 mi away
61/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 618 Google reviews, listed on Google as “Plumber”.
- 5.0★ from 618 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 7898 Cherry Ave Ste D, Fontana, CA 92336
Based in Rancho Cucamonga, 12 mi away
61/100CR ScoreRanked #24 because of its Google rating and trade focus: 5.0★ from 334 Google reviews, listed on Google as “Plumber”.
- 5.0★ from 334 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 9350 Base Line Rd ste c, Rancho Cucamonga, CA 91701
Based in Brea, 12 mi away
61/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.7★ from 1,173 Google reviews, listed on Google as “Plumber”.
- 4.7★ from 1,173 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 245 Viking Ave, Brea, CA 92821
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 1,371 ranked plumbers here; the rest are on their profiles.
Also serving Los Serranos
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.
| Business | Google rating | Distance |
|---|---|---|
| A.M. Plumbing & Rooter LLC | 5.0★ (2) | 13 mi |
| Currier Plumbing | 5.0★ (2) | 6 mi |
| D&P LEAK DETECTION | 5.0★ (2) | 10 mi |
| Elite Rooter Plumbers | 4.7★ (752) | 14 mi |
| Empire Pipe Cleaning & Equipment | 5.0★ (2) | 13 mi |
| Fierce Plumbing Inc | 5.0★ (1) | In Los Serranos |
| Hydro Backflow | 5.0★ (2) | 13 mi |
| I-Best Construction | 3.0★ (2) | 12 mi |
| JB Plumbing | 4.8★ (396) | 12 mi |
| JB Plumbing | 4.5★ (2) | 10 mi |
| Jim & Sons Plumbing & Rooter | 5.0★ (750) | 16 mi |
| Orange Coast Pipe | 5.0★ (2) | 6 mi |
| P & P PLUMBING COMPANY | 1.0★ (2) | 11 mi |
| Paul's Water Heaters | 4.8★ (80) | 2 mi |
| Perfection Plumbing Inc | 5.0★ (2) | 10 mi |
| Pure Plumbing Inc. | 5.0★ (2) | 9 mi |
| Robinson's Mechanical Construction | 4.0★ (2) | 10 mi |
| Rush Plumbing and Rooter | 1.0★ (2) | 12 mi |
| Tankless Water Heater & Plumbing | 5.0★ (2) | 8 mi |
| TRUSTED PROS PLUMBING AND DRAINS | 3.0★ (2) | 11 mi |
How much do plumbers cost in Los Serranos?
National price ranges in USD, not adjusted for Los Serranos. Each row names its basis and the month we checked it.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Water heater replacement | $882 | $1,348 | $1,826 | Per unit, installed (unit plus labor); typical range of customer-reported jobs. US national range | October 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).
- Search the business name or license number on the Contractors State License Board (CSLB) license lookup.
- Check that the status is active and the name matches the contract or truck.
- 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 Los Serranos plumbers
We scored 1,371 Los Serranos 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 23, 2026.
Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.
| Factor | Weight | Computed from | In Los Serranos data |
|---|---|---|---|
| Reputation | 25% | Google star rating, adjusted for how many reviews back it | Measured |
| Credentials | 15% | Active state license, bond and workers’ comp on file | Not yet collected |
| Review volume | 10% | Number of Google reviews, compared with the most-reviewed business on the list | Measured |
| Recency | 5% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 5% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | How clearly the business does this trade (its Google category and name) | Measured |
| Proximity | 5% | Based in the city scores highest, less the farther away it is | Measured |
| Claimed profile | 10% | The business has claimed its ContractorsRanked profile (free or paid earn the same) | Measured |
| Partnered | 5% | The business links to ContractorsRanked from its own website with our badge, checked periodically | Measured |
| ContractorsRanked reviews | 10% | Verified customer reviews collected by ContractorsRanked: their rating and how many there are | Measured |
Plumbers in Los Serranos: frequently asked questions
Who is the best plumber in Los Serranos?
By CR Score, the highest-ranked plumber in Los Serranos, CA is Rooter Hero Plumbing & Air with a CR Score of 64/100. It has 4.9★ from 1,637 Google reviews. It is open 24/7. Barker and Sons Plumbing & Rooter (#2) and Option One Plumbing (#3) follow. We ranked 1,371 plumbers on ten factors, last updated October 23, 2026.
How many plumbers are there in Los Serranos?
ContractorsRanked ranks 1,371 plumbers serving Los Serranos, CA. Another 20 within 25 mi are listed but not ranked yet. Counts are as of October 2026.
Which plumbers in Los Serranos are open 24/7?
702 ranked plumbers in Los Serranos post 24/7 hours. The highest-ranked are Rooter Hero Plumbing & Air (#1), Barker and Sons Plumbing & Rooter (#2) and Option One Plumbing (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which plumbers in Los Serranos work on weekends?
1,110 of 1,371 ranked plumbers post Saturday hours and 868 post Sunday hours. The highest-ranked open Saturdays are Rooter Hero Plumbing & Air (#1), Barker and Sons Plumbing & Rooter (#2) and Option One Plumbing (#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 Los Serranos?
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 Los Serranos. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Los Serranos plumbers have?
The median Google rating among 1,371 rated plumbers in Los Serranos is 5.0★, with a median of 21 reviews. All Pro Cooling, Heating, Plumbing & Electrical has the most, 7,425 reviews, and ranks #37. 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 Los Serranos
- October 2026: CR Scores recalculated for 1,371 plumbers serving Los Serranos.
- October 2026: 18 duplicate listings merged.
More plumbers and Los Serranos pages
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Other trades in Los Serranos
- Roofers in Los Serranos1697 ranked
- Electricians in Los Serranos896 ranked
- HVAC contractors in Los Serranos1347 ranked
- General contractors in Los Serranos1292 ranked
- Painters in Los Serranos206 ranked
- Landscapers in Los Serranos240 ranked
- Handymen in Los Serranos111 ranked
- Kitchen remodelers in Los Serranos675 ranked
- Bathroom remodelers in Los Serranos659 ranked
- Flooring contractors in Los Serranos627 ranked
- Tile installers in Los Serranos92 ranked
- Drywall contractors in Los Serranos38 ranked
- Concrete contractors in Los Serranos409 ranked
- Fence contractors in Los Serranos272 ranked
- Deck builders in Los Serranos155 ranked
- Siding contractors in Los Serranos110 ranked
- Window installers in Los Serranos641 ranked
- Gutter installers in Los Serranos177 ranked
- Insulation contractors in Los Serranos201 ranked
- Solar installers in Los Serranos546 ranked
- Garage door repair companies in Los Serranos272 ranked
- Foundation repair companies in Los Serranos190 ranked
- Tree services in Los Serranos351 ranked
- Masonry contractors in Los Serranos225 ranked
- Water damage restoration companies in Los Serranos1161 ranked
- Home builders in Los Serranos700 ranked
- Demolition contractors in Los Serranos159 ranked
- All contractors in Los Serranos