92/100CR 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
Best Plumbers in Glen Avon, CA (2026)
733 plumbers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Glen Avon: Option One Plumbing, CR Score 92/100; 4.8★ from 3,017 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): AS Plumbing Mechanical, posts 24/7 hours; ranked #2 of 733.
- 10
Most-reviewed: All Pro Cooling, Heating, Plumbing & Electrical, 7,425 Google reviews at 4.8★, the most of 733 ranked; ranked #10.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
733 Glen Avon plumbers are ranked here by CR Score, from 8 published factors. 388 are open 24/7, 585 open Saturdays and 456 open Sundays, based on posted hours. The median Google rating is 4.9★ across 733 rated businesses.
Top 10 plumbers in Glen Avon at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Option One Plumbing | 92 | 4.8★ (3,017) | Rancho Cucamonga, 8 mi away | 24/7 | Overall |
| 2 | AS Plumbing Mechanical | 92 | 5.0★ (618) | Fontana, 7 mi away | 24/7 | Emergencies |
| 3 | First Class Plumbing & AC | 91 | 4.9★ (784) | Riverside, 7 mi away | 24/7 | — |
| 4 | RD Plumbing and Rooter | 91 | 5.0★ (279) | Riverside, 6 mi away | 24/7 | — |
| 5 | Mr. Rooter Plumbing of Riverside | 91 | 4.8★ (433) | Riverside, 3 mi away | 24/7 | — |
| 6 | Mr. Rooter Plumbing of Riverside | 90 | 4.9★ (496) | Riverside, 7 mi away | 24/7 | — |
| 7 | Anthony's Plumbing | 90 | 4.9★ (592) | Fontana, 8 mi away | 24/7 | — |
| 8 | Mr. Rooter Plumbing of San Bernardino | 90 | 4.8★ (1,351) | Colton, 10 mi away | 24/7 | — |
| 9 | Scott McLeod Plumbing, Inc. | 90 | 4.9★ (756) | Rancho Cucamonga, 10 mi away | 24/7 | — |
| 10 | All Pro Cooling, Heating, Plumbing & Electrical | 90 | 4.8★ (7,425) | Ontario, 5 mi away | 24/7 | Most reviews |
The 733 best plumbers in Glen Avon, 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.
Based in Fontana, 7 mi away
92/100CR ScoreRanked #2 because of its Google rating and availability: 5.0★ from 618 Google reviews, open 24/7.
- 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 Riverside, 7 mi away
91/100CR ScoreRanked #3 because of its Google rating and availability: 4.9★ from 784 Google reviews, open 24/7.
- 4.9★ from 784 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 9327 Douglas Dr, Riverside, CA 92503
Based in Riverside, 6 mi away
91/100CR ScoreRanked #4 because of its Google rating and availability: 5.0★ from 279 Google reviews, open 24/7.
- 5.0★ from 279 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 5198 Arlington Ave #131, Riverside, CA 92503
Based in Riverside, 3 mi away
91/100CR ScoreRanked #5 because of its Google rating and availability: 4.8★ from 433 Google reviews, open 24/7.
- 4.8★ from 433 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 7710 Limonite Ave # A, Riverside, CA 92509
Based in Riverside, 7 mi away
90/100CR ScoreRanked #6 because of its Google rating and availability: 4.9★ from 496 Google reviews, open 24/7.
- 4.9★ from 496 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 6833 Indiana Ave #201, Riverside, CA 92506
Based in Fontana, 8 mi away
90/100CR ScoreRanked #7 because of its Google rating and availability: 4.9★ from 592 Google reviews, open 24/7.
- 4.9★ from 592 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 6714 Almeria Ave, Fontana, CA 92336
Based in Colton, 10 mi away
90/100CR ScoreRanked #8 because of its Google rating and availability: 4.8★ from 1,351 Google reviews, open 24/7.
- 4.8★ from 1,351 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 410 W Valley Blvd, Colton, CA 92324
Based in Rancho Cucamonga, 10 mi away
90/100CR ScoreRanked #9 because of its Google rating and availability: 4.9★ from 756 Google reviews, open 24/7.
- 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 Ontario, 5 mi away
90/100CR ScoreRanked #10 because of its Google rating and review volume: 4.8★ from 7,425 Google reviews, the most Google reviews on this list (7,425).
- 4.8★ from 7,425 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 5001 Ontario Mills Pkwy, Ontario, CA 91764
Based in Corona, 9 mi away
90/100CR ScoreRanked #11 because of its Google rating and availability: 5.0★ from 322 Google reviews, open 24/7.
- 5.0★ from 322 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 791 Allen Dr, Corona, CA 92879
Based in Riverside, 5 mi away
90/100CR ScoreRanked #12 because of its Google rating and availability: 5.0★ from 174 Google reviews, open 24/7.
- 5.0★ from 174 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 6139 Zircon Wy, Riverside, CA 92503
Based in Grand Terrace, 9 mi away
90/100CR ScoreRanked #13 because of its Google rating and availability: 4.9★ from 607 Google reviews, open 24/7.
- 4.9★ from 607 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 12210 Michigan St Unit 2, Grand Terrace, CA 92313
Based in Pomona, 15 mi away
90/100CR ScoreRanked #14 because of its Google rating and availability: 4.9★ from 1,637 Google reviews, open 24/7.
- 4.9★ from 1,637 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2040 N Towne Ave, Pomona, CA 91767
Based in Riverside, 8 mi away
90/100CR ScoreRanked #15 because of its Google rating and availability: 5.0★ from 269 Google reviews, open 24/7.
- 5.0★ from 269 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1440 3rd St Unit 20, Riverside, CA 92507
Based in Rancho Cucamonga, 10 mi away
90/100CR ScoreRanked #16 because of its Google rating and availability: 5.0★ from 334 Google reviews, open 24/7.
- 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 Rancho Cucamonga, 8 mi away
90/100CR ScoreRanked #17 because of its Google rating and availability: 5.0★ from 219 Google reviews, open 24/7.
- 5.0★ from 219 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 10700 Jersey Blvd #220, Rancho Cucamonga, CA 91730
#18 Water Heater SOS
Based in Calimesa, 12 mi away
90/100CR ScoreRanked #18 because of its Google rating and availability: 5.0★ from 440 Google reviews, open 24/7.
- 5.0★ from 440 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Rancho Cucamonga, 8 mi away
90/100CR ScoreRanked #19 because of its Google rating and availability: 4.9★ from 354 Google reviews, open 24/7.
- 4.9★ from 354 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 10970 Arrow Route #104, Rancho Cucamonga, CA 91730
Based in Eastvale, 4 mi away
90/100CR ScoreRanked #20 because of its Google rating and availability: 5.0★ from 133 Google reviews, open 24/7.
- 5.0★ from 133 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 12502 Breeze Ln, Mira Loma, CA 91752
#21 Peli Plumbing
Based in Rancho Cucamonga, 8 mi away
90/100CR ScoreRanked #21 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
Based in Rancho Cucamonga, 9 mi away
90/100CR ScoreRanked #22 because of its Google rating and availability: 5.0★ from 262 Google reviews, open 24/7.
- 5.0★ from 262 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 9328 Foothill Blvd, Rancho Cucamonga, CA 91730
Based in Riverside, 7 mi away
90/100CR ScoreRanked #23 because of its Google rating and availability: 4.8★ from 495 Google reviews, open 24/7.
- 4.8★ from 495 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3579 Arlington Ave #800, Riverside, CA 92506
Based in Corona, 10 mi away
90/100CR ScoreRanked #24 because of its Google rating and availability: 4.8★ from 936 Google reviews, open 24/7.
- 4.8★ from 936 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1501 Railroad St, Corona, CA 92878
Based in Riverside, 6 mi away
90/100CR ScoreRanked #25 because of its Google rating and availability: 5.0★ from 142 Google reviews, open 24/7.
- 5.0★ from 142 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 4680 Beverly Ct, Riverside, CA 92506
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 733 ranked plumbers here; the rest are on their profiles.
Also serving Glen Avon
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) | 6 mi |
| AAVCO Plumbing, Heating & Air Conditioning - Riverside | 5.0★ (2) | 9 mi |
| Allstar Plumbing, Heating & Air | 4.7★ (220) | 8 mi |
| American Made Plumbing | 4.9★ (144) | 10 mi |
| Betanco Construction and Remodeling | 5.0★ (2) | 9 mi |
| D&P LEAK DETECTION | 5.0★ (2) | 8 mi |
| Eds Plumbing and Rooter | 5.0★ (2) | 6 mi |
| Endo Plumbing Co Inc. | 3.0★ (2) | 2 mi |
| Family Plumbing Heating & Air Inc | In Glen Avon | |
| Flush Inc. | In Glen Avon | |
| Fontana Plumbing Repair & Water Heater | 5.0★ (2) | 8 mi |
| Jetter pro 1 | 5.0★ (2) | 7 mi |
| Jorod Plumbing Restoration | 5.0★ (2) | 8 mi |
| Locktight Drywall | 5.0★ (2) | 8 mi |
| Perfection Plumbing Inc | 5.0★ (2) | 6 mi |
| RoboOne Restaurant Plumbing | In Glen Avon | |
| The Fifth Plumbing Riverside Co. | 5.0★ (2) | 9 mi |
| TRUSTED PROS PLUMBING AND DRAINS | 3.0★ (2) | 8 mi |
| Water Heaters Only, Inc | 4.8★ (181) | 8 mi |
| Xavier Plumbing And Mechanical | 1.0★ (2) | 9 mi |
How much do plumbers cost in Glen Avon?
National price ranges in USD, not adjusted for Glen Avon. 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 Glen Avon plumbers
We scored 733 Glen Avon 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.
| Factor | Weight | Computed from | In Glen Avon data |
|---|---|---|---|
| Reputation | 35% | Bayesian-adjusted Google star rating | Measured |
| Credentials | 15% | Active state license 0.6, bond 0.2, workers’ comp 0.2 | Not yet collected |
| Review volume | 10% | log10(reviews + 1) against the list maximum | Measured |
| Recency | 10% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 10% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | Google main category 1.0, business name 0.7, additional category 0.5 | Measured |
| Proximity | 5% | 1.0 when based in the city, falling to 0 at the trade’s radius | Measured |
| Completeness | 5% | Website, photos, description, hours, claimed profile (0.2 each) | Measured |
Plumbers in Glen Avon: frequently asked questions
Who is the best plumber in Glen Avon?
By CR Score, the highest-ranked plumber in Glen Avon, CA is Option One Plumbing with a CR Score of 92/100. It has 4.8★ from 3,017 Google reviews. It is open 24/7. AS Plumbing Mechanical (#2) and First Class Plumbing & AC (#3) follow. We ranked 733 plumbers on 8 factors, last updated October 22, 2026.
How many plumbers are there in Glen Avon?
ContractorsRanked ranks 733 plumbers serving Glen Avon, CA. Another 20 within 25 mi are listed but not ranked yet. Counts are as of October 2026.
Which plumbers in Glen Avon are open 24/7?
388 ranked plumbers in Glen Avon post 24/7 hours. The highest-ranked are Option One Plumbing (#1), AS Plumbing Mechanical (#2) and First Class Plumbing & AC (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which plumbers in Glen Avon work on weekends?
585 of 733 ranked plumbers post Saturday hours and 456 post Sunday hours. The highest-ranked open Saturdays are Option One Plumbing (#1), AS Plumbing Mechanical (#2) and First Class Plumbing & AC (#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 Glen Avon?
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 Glen Avon. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Glen Avon plumbers have?
The median Google rating among 733 rated plumbers in Glen Avon is 4.9★, with a median of 25 reviews. All Pro Cooling, Heating, Plumbing & Electrical has the most, 7,425 reviews, and ranks #10. 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 Glen Avon
- October 2026: CR Scores recalculated for 733 plumbers serving Glen Avon.
- October 2026: 9 duplicate listings merged.
More plumbers and Glen Avon pages
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