773 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Altamonte Springs: Mechanical One, CR Score 67/100; 5.0★ from 2,454 Google reviews; open 24/7.
Best for emergencies (open 24/7): Cool Today - Cooling, Plumbing, Electrical, posts 24/7 hours; ranked #2 of 773.
Most-reviewed: Frank Gay Services, 12,806 Google reviews at 4.7★, the most of 773 ranked; ranked #11.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
773 Altamonte Springs HVAC contractors are ranked here by CR Score, from ten published factors. 300 are open 24/7, 595 open Saturdays and 453 open Sundays, based on posted hours. The median Google rating is 4.9★ across 773 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Mechanical One | 67 | 5.0★ (2,454) | Altamonte Springs | 24/7 | Overall |
| 2 | Cool Today - Cooling, Plumbing, Electrical | 66 | 4.8★ (4,827) | Altamonte Springs | 24/7 | Emergencies |
| 3 | American Air, Plumbing, and Electrical | 65 | 4.9★ (8,447) | Sanford, 10 mi away | 24/7 | — |
| 4 | Rainaldi Home Services | 65 | 4.8★ (5,502) | Orlando, 8 mi away | 24/7 | — |
| 5 | Clear Comfort | 64 | 5.0★ (1,046) | Horizon West, 5 mi away | 24/7 | — |
| 6 | Frank Gay Residential Services | 64 | 4.6★ (8,222) | Orlando, 7 mi away | 24/7 | — |
| 7 | Pro-Tech Air Conditioning & Plumbing Service | 64 | 4.8★ (2,898) | Winter Park, 7 mi away | 24/7 | — |
| 8 | Mechanical One | 64 | 5.0★ (293) | Altamonte Springs | 24/7 | — |
| 9 | Mills Air Inc | 64 | 4.7★ (2,318) | Orlando, 4 mi away | 24/7 | — |
| 10 | Pro-Tech Air Conditioning & Plumbing Service | 63 | 4.9★ (1,184) | Lake Mary, 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: 5.0★ from 2,454 Google reviews, listed on Google as “HVAC contractor”.
Based in Altamonte Springs
Ranked #2 because of its Google rating and trade focus: 4.8★ from 4,827 Google reviews, listed on Google as “Air conditioning contractor”.
Based in Sanford, 10 mi away
Ranked #3 because of its Google rating and trade focus: 4.9★ from 8,447 Google reviews, listed on Google as “HVAC contractor”.
Based in Orlando, 8 mi away
Ranked #4 because of its Google rating and trade focus: 4.8★ from 5,502 Google reviews, listed on Google as “HVAC contractor”.
Based in Horizon West, 5 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 1,046 Google reviews, listed on Google as “HVAC contractor”.
Based in Orlando, 7 mi away
Ranked #6 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 Winter Park, 7 mi away
Ranked #7 because of its Google rating and trade focus: 4.8★ from 2,898 Google reviews, listed on Google as “HVAC contractor”.
Based in Altamonte Springs
Ranked #8 because of its Google rating and trade focus: 5.0★ from 293 Google reviews, listed on Google as “Air conditioning contractor”.
Based in Orlando, 4 mi away
Ranked #9 because of its Google rating and trade focus: 4.7★ from 2,318 Google reviews, listed on Google as “HVAC contractor”.
Based in Lake Mary, 7 mi away
Ranked #10 because of its Google rating and trade focus: 4.9★ from 1,184 Google reviews, listed on Google as “HVAC contractor”.
Based in Orlando, 15 mi away
Ranked #11 because of its Google rating and review volume: 4.7★ from 12,806 Google reviews, the most in Altamonte Springs.
Based in Orlando, 9 mi away
Ranked #12 because of its Google rating and trade focus: 4.8★ from 2,062 Google reviews, listed on Google as “Air conditioning contractor”.
Based in Orlando, 10 mi away
Ranked #13 because of its Google rating and trade focus: 4.9★ from 1,733 Google reviews, listed on Google as “Heating contractor”.
Based in Altamonte Springs
Ranked #14 because of its Google rating and trade focus: 5.0★ from 195 Google reviews, listed on Google as “Air conditioning contractor”.
Based in Orlando, 9 mi away
Ranked #15 because of its Google rating and trade focus: 4.9★ from 1,222 Google reviews, listed on Google as “HVAC contractor”.
Based in Apopka, 6 mi away
Ranked #16 because of its Google rating and trade focus: 4.9★ from 770 Google reviews, listed on Google as “HVAC contractor”.
Based in Apopka, 1 mi away
Ranked #17 because of its Google rating and trade focus: 4.9★ from 729 Google reviews, listed on Google as “HVAC contractor”.
Based in Orlando, 12 mi away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 1,083 Google reviews, listed on Google as “HVAC contractor”.
Based in Altamonte Springs
Ranked #19 because of its Google rating and trade focus: 4.8★ from 302 Google reviews, listed on Google as “HVAC contractor”.
Based in Casselberry, 3 mi away
Ranked #20 because of its Google rating and trade focus: 4.9★ from 345 Google reviews, listed on Google as “HVAC contractor”.
Based in Longwood, 2 mi away
Ranked #21 because of its Google rating and trade focus: 4.6★ from 981 Google reviews, listed on Google as “HVAC contractor”.
Based in Azalea Park, 7 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 435 Google reviews, listed on Google as “HVAC contractor”.
Based in Winter Garden, 14 mi away
Ranked #23 because of its Google rating and trade focus: 4.9★ from 2,186 Google reviews, listed on Google as “HVAC contractor”.
Based in Winter Springs, 5 mi away
Ranked #24 because of its Google rating and trade focus: 4.8★ from 532 Google reviews, listed on Google as “HVAC contractor”.
Based in Lake Mary, 5 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 266 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 773 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.
National price ranges in USD, not adjusted for Altamonte Springs. 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 773 Altamonte Springs 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 Altamonte Springs 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 |