15 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Islamorada: Rex Air, CR Score 66/100; 4.9★ from 828 Google reviews; open 7 days a week.
Best for emergencies (open 24/7): SUB ZERO AIR, posts 24/7 hours; ranked #4 of 15.
Most-reviewed: Rocket Cooling, 1,040 Google reviews at 4.8★, the most of 15 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
15 Islamorada HVAC contractors are ranked here by CR Score, from ten published factors. 8 are open 24/7, 11 open Saturdays and 10 open Sundays, based on posted hours. The median Google rating is 5.0★ across 15 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Rex Air | 66 | 4.9★ (828) | Islamorada | Sat · Sun · Evenings | Overall |
| 2 | Rocket Cooling | 63 | 4.8★ (1,040) | Islamorada | — | Most reviews |
| 3 | Irwin's Air | 61 | 5.0★ (39) | Islamorada | Sat · Sun · Evenings | — |
| 4 | SUB ZERO AIR | 61 | 5.0★ (177) | Key Largo, 18 mi away | 24/7 | Emergencies |
| 5 | Irwin's Air | 60 | 5.0★ (412) | Key Largo, 20 mi away | Sat · Sun · Evenings | — |
| 6 | Island Air Control | 60 | 4.9★ (10) | Islamorada | 24/7 | — |
| 7 | Quality Comfort Experts | 59 | 5.0★ (36) | Islamorada | Sat | — |
| 8 | Air Conditioning On Call | 58 | 4.9★ (54) | Key Largo, 20 mi away | 24/7 | — |
| 9 | Optimus Home Services | 58 | 4.7★ (33) | Richmond Heights, 8 mi away | 24/7 | — |
| 10 | Integrity home services of the keys ...Boat Detailing huricane shutter service | 56 | 5.0★ (38) | Islamorada | 24/7 | — |
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.
Ranked #1 because of its Google rating and trade focus: 4.9★ from 828 Google reviews, listed on Google as “HVAC contractor”.
Based in Islamorada
Ranked #2 because of its Google rating and review volume: 4.8★ from 1,040 Google reviews, the most in Islamorada.
Based in Islamorada
Ranked #3 because of its Google rating and trade focus: 5.0★ from 39 Google reviews, listed on Google as “HVAC contractor”.
Based in Key Largo, 18 mi away
Ranked #4 because of its Google rating and trade focus: 5.0★ from 177 Google reviews, listed on Google as “HVAC contractor”.
Based in Key Largo, 20 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 412 Google reviews, listed on Google as “HVAC contractor”.
Based in Islamorada
Ranked #6 because of its Google rating and trade focus: 4.9★ from 10 Google reviews, listed on Google as “HVAC contractor”.
Based in Islamorada
Ranked #7 because of its Google rating and trade focus: 5.0★ from 36 Google reviews, listed on Google as “HVAC contractor”.
Based in Key Largo, 20 mi away
Ranked #8 because of its Google rating and trade focus: 4.9★ from 54 Google reviews, listed on Google as “Air conditioning repair service”.
Based in Richmond Heights, 8 mi away
Ranked #9 because of its Google rating and trade focus: 4.7★ from 33 Google reviews, listed on Google as “HVAC contractor”.
Based in Islamorada
Ranked #10 because of its Google rating and review volume: 5.0★ from 38 Google reviews.
Based in Key Largo, 18 mi away
Ranked #11 because of its Google rating and trade focus: 4.7★ from 15 Google reviews, listed on Google as “HVAC contractor”.
Based in Key Largo, 18 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “HVAC contractor”.
Based in Key Largo, 16 mi away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 18 Google reviews, listed on Google as “Air conditioning contractor”.
Based in Key Largo, 21 mi away
Ranked #14 because of its Google rating and trade focus: 4.9★ from 46 Google reviews, listed on Google as “HVAC contractor”.
Based in Florida City, 20 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 31 Google reviews, listed on Google as “HVAC contractor”.
9 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 |
|---|---|---|
| Air Conditioning On Call | 23 mi | |
| Aire by Design | 24 mi | |
| All Brands Corp. AC Inc. | 5.0★ (2) | 22 mi |
| Cool Tech Air Conditioning | 23 mi | |
| Garrett's A/C And Refrigeration | 5.0★ (1) | 17 mi |
| General HVAC Co | 3.0★ (2) | In Islamorada |
| Here And Now Contactors, Co | 5.0★ (2) | In Islamorada |
| Irwin's Air | 5.0★ (2) | 12 mi |
| Windy Day Plumbing | 5.0★ (25) | In Islamorada |
National price ranges in USD, not adjusted for Islamorada. 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 Florida, Florida Construction Industry Licensing Board (DBPR) licenses Certified or registered air conditioning (CAC, RA) and mechanical (CMC, RM) contractors.
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 Florida, 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 15 Islamorada 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 Islamorada 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 |