5 plumbers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Kalaoa: Steve’s Plumbing & A/C Service, CR Score 94/100; 4.8★ from 1,036 Google reviews; open 24/7.
Most-reviewed: Hawaiian Solar & Plumbing, Inc., 14 Google reviews at 4.4★, the most of 5 ranked after Steve’s Plumbing & A/C Service; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
5 Kalaoa plumbers are ranked here by CR Score, from 8 published factors. 1 is open 24/7, 3 open Saturdays and 2 open Sundays, based on posted hours. The median Google rating is 4.8★ across 5 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Steve’s Plumbing & A/C Service | 94 | 4.8★ (1,036) | Kailua-Kona, 6 mi away | 24/7 | Overall |
| 2 | Kona Coast Plumbing LLC | 78 | 5.0★ (5) | Waimea, 17 mi away | Sat · Sun | — |
| 3 | Hawaiian Solar & Plumbing, Inc. | 74 | 4.4★ (14) | Kailua-Kona, 4 mi away | — | Most reviews |
| 4 | Irrigation Solutions & Landscape, LLC | 66 | 5.0★ (13) | Hilo, 13 mi away | — | — |
| 5 | Step by Step Handyman LLC | 66 | 4.0★ (4) | Kailua-Kona, 18 mi away | Sat | — |
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.
Ranked #1 because of its Google rating and review volume: 4.8★ from 1,036 Google reviews, the most Google reviews on this list (1,036).
Based in Waimea, 17 mi away
Ranked #2 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Plumber”.
Based in Kailua-Kona, 4 mi away
Ranked #3 because of its Google rating and trade focus: 4.4★ from 14 Google reviews, listed on Google as “Plumber”.
Based in Hilo, 13 mi away
Ranked #4 because of its Google rating and trade focus: 5.0★ from 13 Google reviews, listed on Google as “Lawn sprinkler system contractor”.
Based in Kailua-Kona, 18 mi away
Ranked #5 because of its Google rating and trade focus: 4.0★ from 4 Google reviews, listed on Google as “Handyman/Handywoman/Handyperson”.
National price ranges in USD, not adjusted for Kalaoa. 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 5 Kalaoa 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 Kalaoa 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 |