64/100CR Score
Ranked #1 because of its Google rating and review volume: 4.8★ from 172 Google reviews, the most in Kapa‘a.
- 4.8★ from 172 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Best HVAC Contractors in Kapa‘a, HI (2026)
7 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Kapa‘a: Cool it Kauai Air Conditioning Inc., CR Score 64/100; 4.8★ from 172 Google reviews; open 24/7.
- 3
Best for emergencies (open 24/7): Rutan Refrigeration, posts 24/7 hours; ranked #3 of 7.
- 6
Most-reviewed: Steve’s Plumbing & AC Service, 103 Google reviews at 4.5★, the most of 7 ranked after Cool it Kauai Air Conditioning Inc.; ranked #6.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
7 Kapa‘a HVAC contractors are ranked here by CR Score, from ten published factors. 4 are open 24/7, 6 open Saturdays and 4 open Sundays, based on posted hours. The median Google rating is 4.6★ across 7 rated businesses.
Top 7 HVAC contractors in Kapa‘a at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Cool it Kauai Air Conditioning Inc. | 64 | 4.8★ (172) | Wailua Homesteads, 14 mi away | 24/7 | Overall |
| 2 | Kauai Air Conditioning & Plumbing | 58 | 4.8★ (53) | Wailua Homesteads, 3 mi away | — | — |
| 3 | Rutan Refrigeration | 58 | 4.0★ (15) | Lihue, 8 mi away | 24/7 | Emergencies |
| 4 | Island Comfort | 57 | 4.4★ (33) | Lihue, 8 mi away | Sat | — |
| 5 | Kauai Mechanical | 57 | 4.6★ (7) | Lihue, 9 mi away | 24/7 | — |
| 6 | Steve’s Plumbing & AC Service | 57 | 4.5★ (103) | Lihue, 7 mi away | 24/7 | Most reviews |
| 7 | Cosco Air Conditioning & Refrigeration | 55 | 4.8★ (15) | Lihue, 9 mi away | Sat | — |
The 7 best HVAC contractors in Kapa‘a, 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 Wailua Homesteads, 3 mi away
58/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.8★ from 53 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 53 Google reviews
- Hours
- Mon–Fri 8 AM–4:30 PM · Sat–Sun closed
- Address
- 1021 Kamalu Rd, Kapaʻa, HI 96746
Based in Lihue, 8 mi away
58/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.0★ from 15 Google reviews, listed on Google as “Air conditioning contractor”.
- 4.0★ from 15 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3148 Oihana St #14, Lihue, HI 96766
Based in Lihue, 8 mi away
57/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.4★ from 33 Google reviews, listed on Google as “HVAC contractor”.
- 4.4★ from 33 Google reviews
- Hours
- Mon–Fri 7:30 AM–6 PM · Sat 8 AM–4 PM · Sun closed
- Address
- 4337 Rice St, Lihue, HI 96766
Based in Lihue, 9 mi away
57/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.6★ from 7 Google reviews, listed on Google as “HVAC contractor”.
- 4.6★ from 7 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1702 Haleukana St, Lihue, HI 96766
Based in Lihue, 7 mi away
57/100CR ScoreRanked #6 because of its Google rating and review volume: 4.5★ from 103 Google reviews.
- 4.5★ from 103 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 4247 Kapaia Rd, Lihue, HI 96766
Based in Lihue, 9 mi away
55/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.8★ from 15 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 15 Google reviews
- Hours
- Mon–Fri 7 AM–3:30 PM · Sat 8 AM–12 PM · Sun closed
- Address
- 1885 Haleukana St, Lihue, HI 96766
How much do HVAC contractors cost in Kapa‘a?
National price ranges in USD, not adjusted for Kapa‘a. 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 |
How to check an HVAC contractor's license in Hawaii
In Hawaii, Hawaii Contractors License Board (DCCA) licenses C-52 ventilating and air conditioning specialty contractor license.
- Search the business name or license number on the Hawaii Contractors License Board (DCCA) 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
When to hire an HVAC contractor in Hawaii
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.
How we ranked Kapa‘a HVAC contractors
We scored 7 Kapa‘a 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 Kapa‘a 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 |
HVAC contractors in Kapa‘a: frequently asked questions
Who is the best HVAC contractor in Kapa‘a?
By CR Score, the highest-ranked HVAC contractor in Kapa‘a, HI is Cool it Kauai Air Conditioning Inc. with a CR Score of 64/100. It has 4.8★ from 172 Google reviews. It is open 24/7. Kauai Air Conditioning & Plumbing (#2) and Rutan Refrigeration (#3) follow. We ranked 7 HVAC contractors on ten factors, last updated October 22, 2026.
Which HVAC contractors in Kapa‘a are open 24/7?
4 ranked HVAC contractors in Kapa‘a post 24/7 hours. The highest-ranked are Cool it Kauai Air Conditioning Inc. (#1), Rutan Refrigeration (#3) and Kauai Mechanical (#5). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which HVAC contractors in Kapa‘a work on weekends?
6 of 7 ranked HVAC contractors post Saturday hours and 4 post Sunday hours. The highest-ranked open Saturdays are Cool it Kauai Air Conditioning Inc. (#1), Rutan Refrigeration (#3) and Island Comfort (#4). Posted hours are office hours; crews may book weekend jobs separately.
How do I check an HVAC contractor's license in Hawaii?
In Hawaii, Hawaii Contractors License Board (DCCA) handles licensing and covers C-52 ventilating and air conditioning specialty contractor license. Search the business or license number at https://mypvl.dcca.hawaii.gov/public-license-search/.
How much does ac replacement cost in Kapa‘a?
AC replacement typically costs $3,887 to $8,073, with $5,978 typical (Per system, installed (unit plus labor); typical range of customer-reported jobs. US national range). This is a national range, not adjusted for Kapa‘a. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Kapa‘a HVAC contractors have?
The median Google rating among 7 rated HVAC contractors in Kapa‘a is 4.6★, with a median of 33 reviews. Cool it Kauai Air Conditioning Inc. has the most, 172 reviews, and ranks #1. We adjust ratings for review count, so a few five-star reviews cannot top the list.
When is the best time to hire an HVAC contractor in Kapa‘a?
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.
How does ContractorsRanked rank HVAC contractors?
Each HVAC contractor 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 Kapa‘a
- October 2026: CR Scores recalculated for 7 hvac contractors serving Kapa‘a.
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