26 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Kahului: Synairgy Mechanical, CR Score 63/100; 4.9★ from 93 Google reviews; open 24/7.
Best for emergencies (open 24/7): Steve’s Plumbing & A/C Service, posts 24/7 hours; ranked #2 of 26.
Most-reviewed: Steve’s Plumbing & A/C Service, 1,666 Google reviews at 4.8★, the most of 26 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
26 Kahului HVAC contractors are ranked here by CR Score, from ten published factors. 4 are open 24/7, 9 open Saturdays and 6 open Sundays, based on posted hours. The median Google rating is 4.8★ across 26 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Synairgy Mechanical | 63 | 4.9★ (93) | Kahului | 24/7 | Overall |
| 2 | Steve’s Plumbing & A/C Service | 61 | 4.8★ (1,666) | Kahului | 24/7 | Emergencies, Most reviews |
| 3 | Cooling Hawaii | 59 | 4.9★ (188) | Kahului | — | — |
| 4 | Alltemp | 59 | 4.0★ (33) | Kahului | 24/7 | — |
| 5 | Maui AC Services | 59 | 5.0★ (73) | Waihee-Waiehu, 11 mi away | Sat · Sun | — |
| 6 | R.I.P AC LLC R.I.P Air Conditioning | 58 | 4.9★ (68) | Kahului | — | — |
| 7 | Scott's Cooling Unlimited | 57 | 3.3★ (7) | Kahului | 24/7 | — |
| 8 | Sturdevant Air Conditioning | 57 | 4.6★ (115) | Kahului | — | — |
| 9 | Cosco Air Conditioning & Refrigeration | 57 | 4.6★ (25) | Kahului | Sat | — |
| 10 | Certified Air Conditioning - Maui | 56 | 4.8★ (40) | Kahului | — | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and trade focus: 4.9★ from 93 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Kahului
Ranked #2 because of its Google rating and review volume: 4.8★ from 1,666 Google reviews, the most in Kahului.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Kahului
Ranked #3 because of its Google rating and trade focus: 4.9★ from 188 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Kahului
Ranked #4 because of its Google rating and trade focus: 4.0★ from 33 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Waihee-Waiehu, 11 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 73 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Kahului
Ranked #6 because of its Google rating and trade focus: 4.9★ from 68 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Kahului
Ranked #7 because of its Google rating and trade focus: 3.3★ from 7 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Kahului
Ranked #8 because of its Google rating and trade focus: 4.6★ from 115 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Kahului
Ranked #9 because of its Google rating and trade focus: 4.6★ from 25 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Kahului
Ranked #10 because of its Google rating and trade focus: 4.8★ from 40 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lahaina, 4 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 39 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Kahului
Ranked #12 because of its Google rating and trade focus: 4.7★ from 31 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Kahului
Ranked #13 because of its Google rating and trade focus: 4.6★ from 21 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Napili-Honokowai, 11 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Kahului
Ranked #15 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Wailuku, 1 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Wailea, 10 mi away
Ranked #17 because of its Google rating and trade focus: 3.5★ from 11 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Lahaina, 11 mi away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Wailea, 11 mi away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Waihee-Waiehu, 6 mi away
Ranked #20 because of its Google rating and trade focus: 3.4★ from 10 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Haiku-Pauwela, 10 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Wailea, 11 mi away
Ranked #22 because of its Google rating and trade focus: 4.6★ from 10 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Wailuku, 5 mi away
Ranked #23 because of its Google rating and trade focus: 3.7★ from 3 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Wailea, 7 mi away
Ranked #24 because of its Google rating and trade focus: 3.7★ from 6 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Kahului
Ranked #25 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Sheet metal contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#1 to #25 are shown in full above. Here are #26 to #26, in CR Score order; each links to its profile.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Des Tobin Custom Sheet Metal | 48 | 5.0★ (4) | 1 mi |
19 more HVAC contractors within 25 mi that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.
| Business | Google rating | Distance |
|---|---|---|
| A-Line Maui Air Conditioning | 6 mi | |
| Abco Air Conditioning of Maui | 11 mi | |
| Air Conditioning of Maui Inc. | 11 mi | |
| Alternate Energy Inc | In Kahului | |
| Carrier Hawaii | 5.0★ (1) | In Kahului |
| Cool Brothers LLC | 11 mi | |
| Cool Guys LLC | 11 mi | |
| Ed's Refrigeration Services | 1 mi | |
| Elite Refrigeration Llc | 5.0★ (1) | In Kahului |
| Haiku Builders | 5.0★ (1) | 13 mi |
| HAWAII COATING LLC | 5 mi | |
| Intelligent Air Maui | 11 mi | |
| Legacy A/C Solutions LLC | 11 mi | |
| Maui Air Conditioning | In Kahului | |
| Nakoa Electric | 5.0★ (11) | In Kahului |
| Oahu Plumbing & Sheet Metal | In Kahului | |
| Valley Isle Windows & Doors | 4.9★ (53) | In Kahului |
| Windward Air Conditioning | 1 mi | |
| ZERO GRAVITY | 1.0★ (1) | 11 mi |
National price ranges in USD, not adjusted for Kahului. Each row names its basis and the month we checked it.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| AC replacement | $3,887 | $5,978 | $8,073 | Per system, installed (unit plus labor); typical range of customer-reported jobs. US national range | October 2026 |
| Furnace replacement | $2,823 | $4,814 | $6,896 | Per system, installed; typical range of customer-reported jobs. US national range | October 2026 |
In Hawaii, Hawaii Contractors License Board (DCCA) licenses C-52 ventilating and air conditioning specialty contractor license.
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
In Hawaii, air conditioning calls peak in the hottest summer months. Spring is the easiest time to book a tune-up or replacement, before the first heat wave.
We scored 26 Kahului HVAC contractors 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 Kahului 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 |