97/100CR Score
Ranked #1 because of its Google rating and review volume: 5.0★ from 130 Google reviews, the most Google reviews on this list (130).
- 5.0★ from 130 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Best Plumbers in Alta Sierra, CA (2026)
7 plumbers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Alta Sierra: Principled Plumbing Inc, CR Score 97/100; 5.0★ from 130 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Elevated Plumbing & Drain, posts 24/7 hours; ranked #2 of 7.
- 5
Most-reviewed: Golden State Plumbing and Drain, 68 Google reviews at 5.0★, the most of 7 ranked after Principled Plumbing Inc; ranked #5.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
7 Alta Sierra plumbers are ranked here by CR Score, from 8 published factors. 4 are open 24/7, 6 open Saturdays and 5 open Sundays, based on posted hours. The median Google rating is 5.0★ across 7 rated businesses.
Top 7 plumbers in Alta Sierra at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Principled Plumbing Inc | 97 | 5.0★ (130) | Alta Sierra | 24/7 | Overall |
| 2 | Elevated Plumbing & Drain | 93 | 4.9★ (30) | Alta Sierra | 24/7 | Emergencies |
| 3 | JDLR-Plumbing & HVAC services | 86 | 4.6★ (10) | Alta Sierra | Sat · Sun · Evenings | — |
| 4 | Daniels Plumbing & Son | 86 | 5.0★ (5) | Corona, 10 mi away | 24/7 | — |
| 5 | Golden State Plumbing and Drain | 84 | 5.0★ (68) | Alta Sierra | — | Most reviews |
| 6 | Ace Plumbing Pros | 84 | 5.0★ (3) | Altadena, 15 mi away | 24/7 | — |
| 7 | Home Plumbing Co | 79 | 5.0★ (5) | Corona, 10 mi away | Sat | — |
The 7 best plumbers in Alta Sierra, 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 Alta Sierra
93/100CR ScoreRanked #2 because of its Google rating and availability: 4.9★ from 30 Google reviews, open 24/7.
- 4.9★ from 30 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Alta Sierra
86/100CR 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 9:30 AM–9 PM · Sat 9:30 AM–6 PM · Sun 10 AM–6 PM
- Address
- 40 Church St #143, Colfax, CA 95713
Based in Corona, 10 mi away
86/100CR ScoreRanked #4 because of its Google rating and availability: 5.0★ from 5 Google reviews, open 24/7.
- 5.0★ from 5 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Alta Sierra
84/100CR ScoreRanked #5 because of its Google rating and trade focus: 5.0★ from 68 Google reviews, listed on Google as “Plumber”.
- 5.0★ from 68 Google reviews
- Hours
- Mon–Fri 9 AM–5 PM · Sat–Sun closed
Based in Altadena, 15 mi away
84/100CR ScoreRanked #6 because of its Google rating and availability: 5.0★ from 3 Google reviews, open 24/7.
- 5.0★ from 3 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Corona, 10 mi away
79/100CR ScoreRanked #7 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Plumber”.
- 5.0★ from 5 Google reviews
- Hours
- Mon–Sat 8 AM–5 PM · Sun closed
How much do plumbers cost in Alta Sierra?
National price ranges in USD, not adjusted for Alta Sierra. 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 Alta Sierra plumbers
We scored 7 Alta Sierra 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 Alta Sierra 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 Alta Sierra: frequently asked questions
Who is the best plumber in Alta Sierra?
By CR Score, the highest-ranked plumber in Alta Sierra, CA is Principled Plumbing Inc with a CR Score of 97/100. It has 5.0★ from 130 Google reviews. It is open 24/7. Elevated Plumbing & Drain (#2) and JDLR-Plumbing & HVAC services (#3) follow. We ranked 7 plumbers on 8 factors, last updated October 22, 2026.
How many plumbers are there in Alta Sierra?
ContractorsRanked ranks 7 plumbers serving Alta Sierra, CA. 4 of them are based in Alta Sierra; the rest serve it from nearby towns. Counts are as of October 2026.
Which plumbers in Alta Sierra are open 24/7?
4 ranked plumbers in Alta Sierra post 24/7 hours. The highest-ranked are Principled Plumbing Inc (#1), Elevated Plumbing & Drain (#2) and Daniels Plumbing & Son (#4). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which plumbers in Alta Sierra work on weekends?
6 of 7 ranked plumbers post Saturday hours and 5 post Sunday hours. The highest-ranked open Saturdays are Principled Plumbing Inc (#1), Elevated Plumbing & Drain (#2) and JDLR-Plumbing & HVAC services (#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 Alta Sierra?
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 Alta Sierra. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Alta Sierra plumbers have?
The median Google rating among 7 rated plumbers in Alta Sierra is 5.0★, with a median of 10 reviews. Principled Plumbing Inc has the most, 130 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 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 Alta Sierra
- October 2026: CR Scores recalculated for 7 plumbers serving Alta Sierra.
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