29 plumbers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Wailuku: Steve’s Plumbing & A/C Service, CR Score 95/100; 4.8★ from 1,666 Google reviews; open 24/7.
Best for emergencies (open 24/7): Allens Plumbing, posts 24/7 hours; ranked #2 of 29.
Most-reviewed: Allens Plumbing, 720 Google reviews at 4.8★, the most of 29 ranked after Steve’s Plumbing & A/C Service; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
29 Wailuku plumbers are ranked here by CR Score, from 8 published factors. 7 are open 24/7, 13 open Saturdays and 10 open Sundays, based on posted hours. The median Google rating is 5.0★ across 29 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Steve’s Plumbing & A/C Service | 95 | 4.8★ (1,666) | Kahului, 3 mi away | 24/7 | Overall |
| 2 | Allens Plumbing | 93 | 4.8★ (720) | Kahului, 3 mi away | 24/7 | Emergencies, Most reviews |
| 3 | Roto-Rooter Plumbing and Drain Service | 90 | 4.8★ (296) | Kula, 9 mi away | 24/7 | — |
| 4 | Woody's Plumbing Services | 87 | 4.5★ (72) | Kahului, 3 mi away | 24/7 | — |
| 5 | Pro Island Drain Cleaning & Service | 86 | 4.6★ (27) | Wailuku | 24/7 | — |
| 6 | All aloha plumbing | 84 | 4.1★ (10) | Waihee-Waiehu, 5 mi away | 24/7 | — |
| 7 | SC Service, Inc | 83 | 5.0★ (5) | Lahaina, 8 mi away | 24/7 | — |
| 8 | Chosen Plumbing LLC | 81 | 5.0★ (16) | Haiku-Pauwela, 13 mi away | Sat · Sun | — |
| 9 | Thiago Plumbing | 79 | 5.0★ (24) | Waihee-Waiehu, 9 mi away | Sat | — |
| 10 | Maui Plumbing Inc. | 79 | 4.8★ (93) | Kahului, 3 mi away | — | — |
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and review volume: 4.8★ from 1,666 Google reviews, the most Google reviews on this list (1,666).
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Kahului, 3 mi away
Ranked #2 because of its Google rating and availability: 4.8★ from 720 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Kula, 9 mi away
Ranked #3 because of its Google rating and availability: 4.8★ from 296 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Kahului, 3 mi away
Ranked #4 because of its Google rating and availability: 4.5★ from 72 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Wailuku
Ranked #5 because of its Google rating and availability: 4.6★ from 27 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Waihee-Waiehu, 5 mi away
Ranked #6 because of its Google rating and availability: 4.1★ from 10 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Lahaina, 8 mi away
Ranked #7 because of its Google rating and availability: 5.0★ from 5 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Haiku-Pauwela, 13 mi away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 16 Google reviews, listed on Google as “Plumber”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Waihee-Waiehu, 9 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 24 Google reviews, listed on Google as “Plumber”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Kahului, 3 mi away
Ranked #10 because of its Google rating and trade focus: 4.8★ from 93 Google reviews, listed on Google as “Plumber”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Haiku-Pauwela, 9 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Plumber”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Waihee-Waiehu, 6 mi away
Ranked #12 because of its Google rating and trade focus: 4.9★ from 74 Google reviews, listed on Google as “Plumber”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Wailea, 10 mi away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Plumber”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Makawao, 11 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Plumber”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Kula, 8 mi away
Ranked #15 because of its Google rating and availability: 4.8★ from 65 Google reviews, open 7 days a week.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Kula, 4 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 53 Google reviews, listed on Google as “Plumber”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Wailea, 11 mi away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Plumber”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Makawao, 11 mi away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Plumber”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Waihee-Waiehu, 5 mi away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Plumber”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Wailea, 14 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Plumber”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Kahului, 2 mi away
Ranked #21 because of its Google rating and trade focus: 4.5★ from 25 Google reviews, listed on Google as “Plumber”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Kula, 15 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Plumber”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Waihee-Waiehu, 9 mi away
Ranked #23 because of its Google rating and trade focus: 2.7★ from 12 Google reviews, listed on Google as “Plumber”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Haiku-Pauwela, 9 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Plumber”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Wailea, 11 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Plumber”.
Based on 6 of 8 factors; credentials and recency not yet collected.
National price ranges in USD, not adjusted for Wailuku. 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 |
In Hawaii, Hawaii Contractors License Board (DCCA) licenses C-37 plumbing specialty contractor license (plumbers are licensed by the Board of Electricians and Plumbers).
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
We scored 29 Wailuku 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 Wailuku 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 |