748 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Union Park: Rainaldi Home Services, CR Score 66/100; 4.8★ from 5,502 Google reviews; open 24/7.
Best for emergencies (open 24/7): Pro-Tech Air Conditioning & Plumbing Service, posts 24/7 hours; ranked #2 of 748.
Most-reviewed: Frank Gay Services, 12,806 Google reviews at 4.7★, the most of 748 ranked; ranked #4.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
748 Union Park HVAC contractors are ranked here by CR Score, from ten published factors. 297 are open 24/7, 580 open Saturdays and 438 open Sundays, based on posted hours. The median Google rating is 4.9★ across 748 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Rainaldi Home Services | 66 | 4.8★ (5,502) | Orlando, 1 mi away | 24/7 | Overall |
| 2 | Pro-Tech Air Conditioning & Plumbing Service | 65 | 4.8★ (2,898) | Winter Park, 1 mi away | 24/7 | Emergencies |
| 3 | Clear Comfort | 65 | 5.0★ (1,046) | Horizon West, 3 mi away | 24/7 | — |
| 4 | Frank Gay Services | 64 | 4.7★ (12,806) | Orlando, 10 mi away | 24/7 | Most reviews |
| 5 | Mechanical One | 64 | 5.0★ (2,454) | Altamonte Springs, 9 mi away | 24/7 | — |
| 6 | American Air, Plumbing, and Electrical | 64 | 4.9★ (8,447) | Sanford, 14 mi away | 24/7 | — |
| 7 | Cool Today - Cooling, Plumbing, Electrical | 64 | 4.8★ (4,827) | Altamonte Springs, 10 mi away | 24/7 | — |
| 8 | Belle Air | 64 | 4.9★ (1,733) | Orlando, 7 mi away | 24/7 | — |
| 9 | Frank Gay Residential Services | 64 | 4.6★ (8,222) | Orlando, 9 mi away | 24/7 | — |
| 10 | Our Place Air & Home Repair | 63 | 4.8★ (2,062) | Orlando, 7 mi away | 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: 4.8★ from 5,502 Google reviews, listed on Google as “HVAC contractor”.
Based in Winter Park, 1 mi away
Ranked #2 because of its Google rating and trade focus: 4.8★ from 2,898 Google reviews, listed on Google as “HVAC contractor”.
Based in Horizon West, 3 mi away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 1,046 Google reviews, listed on Google as “HVAC contractor”.
Based in Orlando, 10 mi away
Ranked #4 because of its Google rating and review volume: 4.7★ from 12,806 Google reviews, the most in Union Park.
Based in Altamonte Springs, 9 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 2,454 Google reviews, listed on Google as “HVAC contractor”.
Based in Sanford, 14 mi away
Ranked #6 because of its Google rating and trade focus: 4.9★ from 8,447 Google reviews, listed on Google as “HVAC contractor”.
Based in Altamonte Springs, 10 mi away
Ranked #7 because of its Google rating and trade focus: 4.8★ from 4,827 Google reviews, listed on Google as “Air conditioning contractor”.
Based in Orlando, 7 mi away
Ranked #8 because of its Google rating and trade focus: 4.9★ from 1,733 Google reviews, listed on Google as “Heating contractor”.
Based in Orlando, 9 mi away
Ranked #9 because of its Google rating and trade focus: 4.6★ from 8,222 Google reviews, listed on Google as “Air conditioning repair service”.
Based in Orlando, 7 mi away
Ranked #10 because of its Google rating and trade focus: 4.8★ from 2,062 Google reviews, listed on Google as “Air conditioning contractor”.
Based in Azalea Park, 4 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 435 Google reviews, listed on Google as “HVAC contractor”.
Based in Orlando, 1 mi away
Ranked #12 because of its Google rating and trade focus: 4.7★ from 954 Google reviews, listed on Google as “Air conditioning contractor”.
Based in Orlando, 1 mi away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 268 Google reviews, listed on Google as “HVAC contractor”.
Based in Orlando, 10 mi away
Ranked #14 because of its Google rating and trade focus: 4.7★ from 3,970 Google reviews, listed on Google as “Air conditioning contractor”.
Based in Orlando, 11 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 1,083 Google reviews, listed on Google as “HVAC contractor”.
Based in Orlando, 10 mi away
Ranked #16 because of its Google rating and trade focus: 4.9★ from 1,222 Google reviews, listed on Google as “HVAC contractor”.
Based in Orlando, 9 mi away
Ranked #17 because of its Google rating and trade focus: 4.7★ from 2,318 Google reviews, listed on Google as “HVAC contractor”.
Based in Orlando, 9 mi away
Ranked #18 because of its Google rating and trade focus: 4.9★ from 1,125 Google reviews, listed on Google as “HVAC contractor”.
Based in Altamonte Springs, 3 mi away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 195 Google reviews, listed on Google as “Air conditioning contractor”.
Based in Casselberry, 2 mi away
Ranked #20 because of its Google rating and trade focus: 4.9★ from 236 Google reviews, listed on Google as “HVAC contractor”.
Based in Orlando, 7 mi away
Ranked #21 because of its Google rating and trade focus: 4.7★ from 1,254 Google reviews, listed on Google as “HVAC contractor”.
Based in Oviedo, 8 mi away
Ranked #22 because of its Google rating and trade focus: 4.9★ from 603 Google reviews, listed on Google as “HVAC contractor”.
Based in Orlando, 8 mi away
Ranked #23 because of its Google rating and trade focus: 4.7★ from 1,341 Google reviews, listed on Google as “HVAC contractor”.
Based in Oviedo, 7 mi away
Ranked #24 because of its Google rating and trade focus: 4.9★ from 478 Google reviews, listed on Google as “HVAC contractor”.
Based in Lake Mary, 13 mi away
Ranked #25 because of its Google rating and trade focus: 4.9★ from 1,184 Google reviews, listed on Google as “HVAC contractor”.
#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile. We publish the top 50 of 748 ranked HVAC contractors here; the rest are on their profiles.
20 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 |
|---|---|---|
| AC Repairs Orlando | 5.0★ (2) | 6 mi |
| Air Flow Designs Heating & Air Conditioning | 4.4★ (448) | 7 mi |
| Air Pros (Orlando) | 4.6★ (634) | 9 mi |
| Airetech Mechanical Services | 5.0★ (2) | 8 mi |
| avalon service solutions | 3.0★ (2) | 8 mi |
| Benzah Vent Cleaning LLC | 5.0★ (236) | 6 mi |
| Bob Heinmiller Air Conditioning Inc | 4.6★ (439) | 7 mi |
| Carzoair Inc. Casselberry Fl | 3.0★ (2) | 5 mi |
| Central Air Service LLC | 3.0★ (2) | 3 mi |
| Clayton Mechanical | 5.0★ (2) | 3 mi |
| Fahrenheit AC & Heating Service | 3.0★ (2) | 6 mi |
| Fritz Exume 24hr Handyman Services | 5.0★ (2) | 7 mi |
| Global Climat | 5.0★ (2) | 7 mi |
| High Velocity Heating & Air Conditioning | 3.0★ (2) | 10 mi |
| King's Rivers Air and Heat LLC | 5.0★ (2) | 7 mi |
| Local AC | 4.6★ (288) | 6 mi |
| Mrs. Busy Bee Air Conditioning and Heating LLC | 4.8★ (169) | 1 mi |
| Orlando HVAC Service | 5.0★ (2) | 8 mi |
| Pure AC Air Conditioning Services | 5.0★ (2) | 9 mi |
| Smart Home Climate Control | In Union Park |
National price ranges in USD, not adjusted for Union Park. 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 748 Union Park 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 Union Park 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 |