168 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Mercedes: CAM AIR A/C & HEATING LLC, CR Score 63/100; 4.8★ from 110 Google reviews; open 24/7.
Best for emergencies (open 24/7): Polar Air | Air Conditioning & Heating, posts 24/7 hours; ranked #2 of 168.
Most-reviewed: Mighty Mike's Plumbing, Electrical & HVAC, 2,689 Google reviews at 4.9★, the most of 168 ranked; ranked #10.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
168 Mercedes HVAC contractors are ranked here by CR Score, from ten published factors. 49 are open 24/7, 119 open Saturdays and 70 open Sundays, based on posted hours. The median Google rating is 4.9★ across 168 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | CAM AIR A/C & HEATING LLC | 63 | 4.8★ (110) | Mercedes | 24/7 | Overall |
| 2 | Polar Air | Air Conditioning & Heating | 62 | 5.0★ (732) | Pharr, 18 mi away | 24/7 | Emergencies |
| 3 | Prime Air HVAC & $149 Duct Cleaning | 62 | 5.0★ (866) | McAllen, 20 mi away | 24/7 | — |
| 4 | Millennium A/C | 61 | 5.0★ (1,058) | Mission, 24 mi away | 24/7 | — |
| 5 | Infinity AC Service LLC. | 61 | 5.0★ (234) | San Juan, 15 mi away | 24/7 | — |
| 6 | Cytech Heating & Cooling | 61 | 4.9★ (646) | Edinburg, 21 mi away | 24/7 | — |
| 7 | Infinity Air Heating & Cooling LLC | 60 | 5.0★ (39) | Alamo, 6 mi away | 24/7 | — |
| 8 | TAS Air Conditioning and Heating | 60 | 4.7★ (404) | Weslaco, 6 mi away | — | — |
| 9 | General HVAC LLC | 60 | 4.9★ (130) | Harlingen, 14 mi away | 24/7 | — |
| 10 | Mighty Mike's Plumbing, Electrical & HVAC | 60 | 4.9★ (2,689) | Pharr, 19 mi away | 24/7 | Most reviews |
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: 4.8★ from 110 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Pharr, 18 mi away
Ranked #2 because of its Google rating and trade focus: 5.0★ from 732 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in McAllen, 20 mi away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 866 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Mission, 24 mi away
Ranked #4 because of its Google rating and trade focus: 5.0★ from 1,058 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in San Juan, 15 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 234 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Edinburg, 21 mi away
Ranked #6 because of its Google rating and trade focus: 4.9★ from 646 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Alamo, 6 mi away
Ranked #7 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 Weslaco, 6 mi away
Ranked #8 because of its Google rating and trade focus: 4.7★ from 404 Google reviews, listed on Google as “HVAC contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Harlingen, 14 mi away
Ranked #9 because of its Google rating and trade focus: 4.9★ from 130 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Pharr, 19 mi away
Ranked #10 because of its Google rating and review volume: 4.9★ from 2,689 Google reviews, the most in Mercedes.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Weslaco, 4 mi away
Ranked #11 because of its Google rating and trade focus: 4.8★ from 256 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in San Juan, 15 mi away
Ranked #12 because of its Google rating and trade focus: 4.9★ from 107 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Mercedes
Ranked #13 because of its Google rating and trade focus: 4.1★ from 30 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Alamo, 13 mi away
Ranked #14 because of its Google rating and trade focus: 4.6★ from 158 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Harlingen, 15 mi away
Ranked #15 because of its Google rating and trade focus: 4.7★ from 1,279 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in McAllen, 22 mi away
Ranked #16 because of its Google rating and trade focus: 4.9★ from 224 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Alamo, 16 mi away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 78 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Edinburg, 11 mi away
Ranked #18 because of its Google rating and trade focus: 4.8★ from 51 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Edinburg, 15 mi away
Ranked #19 because of its Google rating and trade focus: 4.9★ from 176 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Edinburg, 21 mi away
Ranked #20 because of its Google rating and trade focus: 4.8★ from 202 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Harlingen, 13 mi away
Ranked #21 because of its Google rating and trade focus: 4.7★ from 71 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in McAllen, 20 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 91 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Edinburg, 19 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 78 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Mercedes
Ranked #24 because of its Google rating and trade focus: 5.0★ from 25 Google reviews, listed on Google as “HVAC contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Harlingen, 18 mi away
Ranked #25 because of its Google rating and trade focus: 4.9★ from 82 Google reviews, listed on Google as “HVAC 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 #50, in CR Score order; each links to its profile. We publish the top 50 of 168 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 |
|---|---|---|
| 5 Star HVAC Distributor LLC | In Mercedes | |
| Ace Electric Construction and plumbing 24 hour emergency service calls | 4.7★ (15) | 17 mi |
| Advanced Air Conditioning Enterprises LLC | 5.0★ (2) | 13 mi |
| Aire Serv Heating & Air Conditioning | 5.0★ (1) | In Mercedes |
| Aj's Heating & Cooling | 4.5★ (2) | 13 mi |
| CAM-AIR AC & HEATING | 3.0★ (2) | 5 mi |
| Central Air & Heating Service Inc. Main Warehouse | 3.8★ (17) | 13 mi |
| Checkmark Refrigeration LLC | 3.5★ (2) | 6 mi |
| Gulf coast hvac | 5.0★ (16) | 19 mi |
| Guzman Cooling & Heating LLC | 5.0★ (5) | 18 mi |
| Master Service llc , A/C Repair , Ice Machine Repair , Walk in Cooler And Freezer Repair | 4.4★ (7) | 13 mi |
| Pope Heating and Air of Weslaco | 5.0★ (2) | 5 mi |
| Precision Air Heating and Cooling | 5.0★ (27) | 25 mi |
| QUALITY AIR | 4.6★ (19) | 17 mi |
| RIGHT CONDITIONS | 5.0★ (1) | 5 mi |
| Rio Comfort Mechanical LLC | 5.0★ (2) | 13 mi |
| Robert's Air Conditioning & Heating Services | 5.0★ (1) | In Mercedes |
| TAS AC & Heating | In Mercedes | |
| Wolf on Roofs Construction | 5.0★ (2) | 21 mi |
| Xpress A/C & Refrigeration, LLC | 5.0★ (4) | 17 mi |
National price ranges in USD, not adjusted for Mercedes. 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 Texas, Texas Department of Licensing and Regulation (TDLR) licenses Air conditioning and refrigeration contractor licenses (Class A and B).
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 Texas, 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 168 Mercedes 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 Mercedes 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 |