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ContractorsRanked

Best Plumbers in Sunnyslope, CA (2026)

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

The short answer

  1. 1

    Best overall in Sunnyslope: Option One Plumbing, CR Score 92/100; 4.8★ from 3,017 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): AS Plumbing Mechanical, posts 24/7 hours; ranked #2 of 647.

  3. 19

    Most-reviewed: All Pro Cooling, Heating, Plumbing & Electrical, 7,425 Google reviews at 4.8★, the most of 647 ranked; ranked #19.

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

647 Sunnyslope plumbers are ranked here by CR Score, from 8 published factors. 340 are open 24/7, 518 open Saturdays and 404 open Sundays, based on posted hours. The median Google rating is 4.9★ across 647 rated businesses.

Top 10 plumbers in Sunnyslope at a glance

Top 10 plumbers in Sunnyslope at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Option One Plumbing924.8★ (3,017)Rancho Cucamonga, 10 mi away24/7Overall
2AS Plumbing Mechanical915.0★ (618)Fontana, 8 mi away24/7Emergencies
3First Class Plumbing & AC914.9★ (784)Riverside, 7 mi away24/7—
4Mr. Rooter Plumbing of San Bernardino914.8★ (1,351)Colton, 7 mi away24/7—
5Mr. Rooter Plumbing of Riverside914.9★ (496)Riverside, 5 mi away24/7—
6RD Plumbing and Rooter915.0★ (279)Riverside, 5 mi away24/7—
7Top Tier Plumbing & Air LLC914.9★ (607)Grand Terrace, 7 mi away24/7—
8Mr. Rooter Plumbing of Riverside914.8★ (433)Riverside, 3 mi away24/7—
9Elite Plumbing & Drains LLC915.0★ (269)Riverside, 6 mi away24/7—
10Water Heater SOS915.0★ (440)Calimesa, 9 mi away24/7—

The 647 best plumbers in Sunnyslope, 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.

  1. Ranked #1 in Sunnyslope

    #1 Option One Plumbing

    Based in Rancho Cucamonga, 10 mi away

    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
    View profile for Option One Plumbing(800) 905-7115

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

plumbers in Sunnyslope, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Bow Tie Plumbing & Rooter895.0★ (334)12 mi
27Utility Plumbing Services895.0★ (219)10 mi
28Mr. Rooter Plumbing of The Inland Empire894.8★ (588)10 mi
29Roto-Rooter Plumbing & Water Cleanup894.8★ (936)12 mi
30Peli Plumbing895.0★ (229)11 mi
31Ramco Plumbing Heating & Air895.0★ (262)12 mi
32Vera Plumbing and Drain LLC895.0★ (133)7 mi
33NIR Plumbing & Air Conditioning894.8★ (160)4 mi
34Payless 4 Plumbing894.8★ (590)11 mi
35Jim & Sons Plumbing & Rooter895.0★ (750)7 mi
36Dependable Plumber Inc895.0★ (198)11 mi
37Water Heaters Only, Inc894.8★ (181)5 mi
38Circle City Plumbing and Rooter895.0★ (208)12 mi
39Plumbing Concepts, Inc.894.9★ (442)14 mi
40Diamond House Plumbing884.8★ (219)7 mi
41Thompson Family Plumbing & Drain884.9★ (182)9 mi
42Redhead Rooter Plumbing Drain Cleaning & Hydrojetting885.0★ (302)15 mi
43Thompson Family Plumbing & Drain885.0★ (94)8 mi
44Benjamin Franklin Plumbing of Central Riverside885.0★ (78)6 mi
45ROOTER KING PLUMBING884.8★ (79)2 mi
46Best Service Plumber885.0★ (211)14 mi
47Monkey Wrench Plumbing, Heating, Air & Electric885.0★ (114)9 mi
48Rossman Plumbing884.7★ (148)4 mi
49Alpha and Omega Plumbing Company884.9★ (82)6 mi
50Drain Edge Rooter885.0★ (132)7 mi

Also serving Sunnyslope

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 Sunnyslope
BusinessGoogle ratingDistance
A Plus Handyman Solutions5.0★ (2)10 mi
A.M. Plumbing & Rooter LLC5.0★ (2)7 mi
A&J Plumbing Co5.0★ (2)7 mi
AAVCO Plumbing, Heating & Air Conditioning - Riverside5.0★ (2)6 mi
Avis Plumbing Heating Air Conditioning5.0★ (2)8 mi
Betanco Construction and Remodeling5.0★ (2)7 mi
D&P LEAK DETECTION5.0★ (2)10 mi
Eds Plumbing and Rooter5.0★ (2)7 mi
Endo Plumbing Co Inc.3.0★ (2)4 mi
Fontana Plumbing Repair & Water Heater5.0★ (2)7 mi
Jetter pro 15.0★ (2)5 mi
Jorod Plumbing Restoration5.0★ (2)9 mi
Lightning Plumbing & Rooter3.0★ (2)10 mi
Locktight Drywall5.0★ (2)5 mi
Perfection Plumbing Inc5.0★ (2)8 mi
Rooter Time Plumbing5.0★ (2)10 mi
Schuelke Plumbing & Construction4.9★ (216)10 mi
The Fifth Plumbing Riverside Co.5.0★ (2)6 mi
TRUSTED PROS PLUMBING AND DRAINS3.0★ (2)10 mi
Xavier Plumbing And Mechanical1.0★ (2)7 mi

How much do plumbers cost in Sunnyslope?

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

How much do plumbers cost in Sunnyslope?
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 Sunnyslope plumbers

We scored 647 Sunnyslope 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 Sunnyslope 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 Sunnyslope: frequently asked questions

Who is the best plumber in Sunnyslope?

By CR Score, the highest-ranked plumber in Sunnyslope, 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 647 plumbers on 8 factors, last updated October 22, 2026.

How many plumbers are there in Sunnyslope?

ContractorsRanked ranks 647 plumbers serving Sunnyslope, CA. Another 20 within 25 mi are listed but not ranked yet. Counts are as of October 2026.

Which plumbers in Sunnyslope are open 24/7?

340 ranked plumbers in Sunnyslope 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 Sunnyslope work on weekends?

518 of 647 ranked plumbers post Saturday hours and 404 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 Sunnyslope?

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

What Google rating do Sunnyslope plumbers have?

The median Google rating among 647 rated plumbers in Sunnyslope is 4.9★, with a median of 24 reviews. All Pro Cooling, Heating, Plumbing & Electrical has the most, 7,425 reviews, and ranks #19. 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 Sunnyslope

  1. October 2026: CR Scores recalculated for 647 plumbers serving Sunnyslope.
  2. October 2026: 9 duplicate listings merged.

More plumbers and Sunnyslope pages

Other trades in Sunnyslope