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ContractorsRanked

Best Plumbers in Rosamond, CA (2026)

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

The short answer

  1. 1

    Best overall in Rosamond: Monster Rooter, CR Score 93/100; 5.0★ from 205 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): The Plumber, posts 24/7 hours; ranked #2 of 86.

  3. 2

    Most-reviewed: The Plumber, 2,033 Google reviews at 4.8★, the most of 86 ranked; ranked #2.

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

86 Rosamond plumbers are ranked here by CR Score, from 8 published factors. 42 are open 24/7, 71 open Saturdays and 52 open Sundays, based on posted hours. The median Google rating is 4.8★ across 86 rated businesses.

Most of this list also appears on the Plumbers in Lancaster ranking. See Plumbers in Lancaster

Top 10 plumbers in Rosamond at a glance

Top 10 plumbers in Rosamond at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Monster Rooter935.0★ (205)Rosamond24/7Overall
2The Plumber924.8★ (2,033)Lancaster, 14 mi away24/7Emergencies, Most reviews
3Jason Manning Plumbing885.0★ (98)Lancaster, 13 mi away24/7—
4Roto-Rooter Plumbing & Water Cleanup884.7★ (352)Lancaster, 15 mi away24/7—
5Patriot Plumbing874.8★ (178)Lancaster, 15 mi away24/7—
6Plumber Duck Inc.874.9★ (102)Lancaster, 15 mi away24/7—
7McDermott Plumbing865.0★ (50)Lancaster, 13 mi away24/7—
8Big Flow Drain Company - Plumbing & Sewer865.0★ (43)Lancaster, 13 mi away24/7—
9Pacific Coast Plumbing865.0★ (62)Palmdale, 18 mi away24/7—
10Mr. Rooter Plumbing of Palmdale854.7★ (193)Lancaster, 20 mi away24/7—

The 86 best plumbers in Rosamond, 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 Rosamond

    #1 Monster Rooter

    Based in Rosamond

    93/100CR Score

    Ranked #1 because of its Google rating and availability: 5.0★ from 205 Google reviews, open 24/7.

    • 5.0★ from 205 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1048 W Rosamond Blvd, Rosamond, CA 93560
    View profile for Monster Rooter(661) 886-2945

  2. #2 The Plumber

    Based in Lancaster, 14 mi away

    92/100CR Score

    Ranked #2 because of its Google rating and review volume: 4.8★ from 2,033 Google reviews, the most Google reviews on this list (2,033).

    • 4.8★ from 2,033 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    230 E Ave K4, Lancaster, CA 93535
    View profile for The Plumber(661) 466-5985

  5. #5 Patriot Plumbing

    Based in Lancaster, 15 mi away

    87/100CR Score

    Ranked #5 because of its Google rating and availability: 4.8★ from 178 Google reviews, open 24/7.

    • 4.8★ from 178 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    42559 6th St E #22, Lancaster, CA 93535
    View profile for Patriot Plumbing(661) 949-1200

  15. #15 Mancia's Plumbing

    Based in Lancaster, 13 mi away

    84/100CR Score

    Ranked #15 because of its Google rating and trade focus: 4.9★ from 103 Google reviews, listed on Google as “Plumber”.

    • 4.9★ from 103 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1324 Camran Ave, Lancaster, CA 93535
    View profile for Mancia's Plumbing

  18. #18 On Call Plumbing

    Based in Lancaster, 13 mi away

    84/100CR Score

    Ranked #18 because of its Google rating and availability: 5.0★ from 14 Google reviews, open 24/7.

    • 5.0★ from 14 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    43460 18th St W, Lancaster, CA 93534
    View profile for On Call Plumbing(661) 201-6016

  24. #24 JC Rooter INC

    Based in Lancaster, 14 mi away

    83/100CR Score

    Ranked #24 because of its Google rating and availability: 5.0★ from 12 Google reviews, open 24/7.

    • 5.0★ from 12 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    42632 32nd St W, Lancaster, CA 93536
    View profile for JC Rooter INC(818) 681-0309

Plumbers ranked #26 to #29

#1 to #25 are shown in full above. Here are #26 to #29, in CR Score order; each links to its profile. We publish the top 29 of 86 ranked plumbers here; the rest are on their profiles.

plumbers in Rosamond, ranks 26 to 29
RankBusinessCR ScoreGoogle ratingDistance
26Bright Lancaster Plumbing Services835.0★ (14)12 mi
28Brothers Plumbing And Septic824.4★ (15)15 mi
29Absolute Best Service Plumbing824.8★ (52)13 mi

How much do plumbers cost in Rosamond?

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

How much do plumbers cost in Rosamond?
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 Rosamond plumbers

We scored 86 Rosamond 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 Rosamond 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 Rosamond: frequently asked questions

Who is the best plumber in Rosamond?

By CR Score, the highest-ranked plumber in Rosamond, CA is Monster Rooter with a CR Score of 93/100. It has 5.0★ from 205 Google reviews. It is open 24/7. The Plumber (#2) and Jason Manning Plumbing (#3) follow. We ranked 86 plumbers on 8 factors, last updated October 22, 2026.

How many plumbers are there in Rosamond?

ContractorsRanked ranks 86 plumbers serving Rosamond, CA. 1 of them is based in Rosamond; the rest serve it from nearby towns. Counts are as of October 2026.

Which plumbers in Rosamond are open 24/7?

42 ranked plumbers in Rosamond post 24/7 hours. The highest-ranked are Monster Rooter (#1), The Plumber (#2) and Jason Manning Plumbing (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which plumbers in Rosamond work on weekends?

71 of 86 ranked plumbers post Saturday hours and 52 post Sunday hours. The highest-ranked open Saturdays are Monster Rooter (#1), The Plumber (#2) and Jason Manning 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 Rosamond?

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

What Google rating do Rosamond plumbers have?

The median Google rating among 86 rated plumbers in Rosamond is 4.8★, with a median of 21 reviews. The Plumber has the most, 2,033 reviews, and ranks #2. 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 Rosamond

  1. October 2026: CR Scores recalculated for 86 plumbers serving Rosamond.

More plumbers and Rosamond pages

Other trades in Rosamond