67/100CR Score
Ranked #1 because of its Google rating and review volume: 4.9★ from 36 Google reviews, the most in Mammoth Lakes.
- 4.9★ from 36 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Best Plumbers in Mammoth Lakes, CA (2026)
7 plumbers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Mammoth Lakes: Highland Plumbing, CR Score 67/100; 4.9★ from 36 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Schilling Plumbing, posts 24/7 hours; ranked #2 of 7.
- 2
Most-reviewed: Schilling Plumbing, 27 Google reviews at 4.9★, the most of 7 ranked after Highland Plumbing; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
7 Mammoth Lakes plumbers are ranked here by CR Score, from ten published factors. 2 are open 24/7, 2 open Saturdays and 2 open Sundays, based on posted hours. The median Google rating is 4.6★ across 7 rated businesses.
Top 7 plumbers in Mammoth Lakes at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Highland Plumbing | 67 | 4.9★ (36) | Mammoth Lakes | 24/7 | Overall |
| 2 | Schilling Plumbing | 66 | 4.9★ (27) | Mammoth Lakes | 24/7 | Emergencies, Most reviews |
| 3 | Mountain Plumbing Services | 57 | 4.6★ (10) | Mammoth Lakes | — | — |
| 4 | A Reliable Plumber | 56 | 4.3★ (6) | Mammoth Lakes | — | — |
| 5 | Eastern Sierra Plumbing, Inc | 56 | 4.3★ (6) | Mammoth Lakes | — | — |
| 6 | Sweetwater Plumbing Inc. | 54 | 5.0★ (3) | Mammoth Lakes | — | — |
| 7 | Doctor Drain Plumbing | 53 | 2.5★ (4) | Mammoth Lakes | — | — |
The 7 best plumbers in Mammoth Lakes, 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 Mammoth Lakes
66/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.9★ from 27 Google reviews, listed on Google as “Plumber”.
- 4.9★ from 27 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 123 Commerce Dr, Mammoth Lakes, CA 93546
Based in Mammoth Lakes
57/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.6★ from 10 Google reviews, listed on Google as “Plumber”.
- 4.6★ from 10 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 272 Sierra Manor Rd ste j, Mammoth Lakes, CA 93546
Based in Mammoth Lakes
56/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.3★ from 6 Google reviews, listed on Google as “Plumber”.
- 4.3★ from 6 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
Based in Mammoth Lakes
56/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.3★ from 6 Google reviews, listed on Google as “Plumber”.
- 4.3★ from 6 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
Based in Mammoth Lakes
54/100CR ScoreRanked #6 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Plumber”.
- 5.0★ from 3 Google reviews
- Hours
- Mon–Fri 8 AM–4:30 PM · Sat–Sun closed
- Address
- 500 Commerce Cir unit a, Mammoth Lakes, CA 93546
Based in Mammoth Lakes
53/100CR ScoreRanked #7 because of its Google rating and trade focus: 2.5★ from 4 Google reviews, listed on Google as “Plumber”.
- 2.5★ from 4 Google reviews
- Hours
- Mon–Fri 9 AM–4:30 PM · Sat–Sun closed
- Address
- 123 Commerce Dr, Mammoth Lakes, CA 93546
How much do plumbers cost in Mammoth Lakes?
National price ranges in USD, not adjusted for Mammoth Lakes. 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 Mammoth Lakes plumbers
We scored 7 Mammoth Lakes 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.
| Factor | Weight | Computed from | In Mammoth Lakes 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 Mammoth Lakes: frequently asked questions
Who is the best plumber in Mammoth Lakes?
By CR Score, the highest-ranked plumber in Mammoth Lakes, CA is Highland Plumbing with a CR Score of 67/100. It has 4.9★ from 36 Google reviews. It is open 24/7. Schilling Plumbing (#2) and Mountain Plumbing Services (#3) follow. We ranked 7 plumbers on ten factors, last updated October 22, 2026.
How many plumbers are there in Mammoth Lakes?
ContractorsRanked ranks 7 plumbers serving Mammoth Lakes, CA. 7 of them are based in Mammoth Lakes; the rest serve it from nearby towns. Counts are as of October 2026.
Which plumbers in Mammoth Lakes are open 24/7?
2 ranked plumbers in Mammoth Lakes post 24/7 hours. The highest-ranked are Highland Plumbing (#1) and Schilling Plumbing (#2). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which plumbers in Mammoth Lakes work on weekends?
2 of 7 ranked plumbers post Saturday hours and 2 post Sunday hours. The highest-ranked open Saturdays are Highland Plumbing (#1) and Schilling Plumbing (#2). 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 Mammoth Lakes?
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 Mammoth Lakes. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Mammoth Lakes plumbers have?
The median Google rating among 7 rated plumbers in Mammoth Lakes is 4.6★, with a median of 6 reviews. Highland Plumbing has the most, 36 reviews, and ranks #1. 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 Mammoth Lakes
- October 2026: CR Scores recalculated for 7 plumbers serving Mammoth Lakes.