7 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Roma: GM Cooling and Heating LLC, CR Score 62/100; 5.0★ from 34 Google reviews; open Saturdays until 5 PM.
Best for emergencies (open 24/7): M & M Air Conditioning, posts 24/7 hours; ranked #2 of 7.
Most-reviewed: L & B HVAC, LLC, 60 Google reviews at 4.9★, the most of 7 ranked; ranked #5.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
7 Roma HVAC contractors are ranked here by CR Score, from ten published factors. 2 are open 24/7, 6 open Saturdays and 2 open Sundays, based on posted hours. The median Google rating is 4.9★ across 7 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | GM Cooling and Heating LLC | 62 | 5.0★ (34) | Roma | Sat · Evenings | Overall |
| 2 | M & M Air Conditioning | 61 | 5.0★ (8) | Roma | 24/7 | Emergencies |
| 3 | M & M A/C | 59 | 4.3★ (6) | Roma | 24/7 | — |
| 4 | Zam-Air Heating & Cooling LLC | 59 | 4.9★ (15) | Roma | Sat | — |
| 5 | L & B HVAC, LLC | 59 | 4.9★ (60) | Rio Grande City, 12 mi away | — | Most reviews |
| 6 | 3G’s Air Conditioning | 52 | 3.2★ (26) | Rio Grande City, 8 mi away | Sat · Evenings | — |
| 7 | Trinity A/C & Foam Insulation | 46 | 3.7★ (3) | Rio Grande City, 9 mi away | Sat | — |
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 34 Google reviews, listed on Google as “HVAC contractor”.
Based in Roma
Ranked #2 because of its Google rating and trade focus: 5.0★ from 8 Google reviews, listed on Google as “Air conditioning contractor”.
Based in Roma
Ranked #3 because of its Google rating and trade focus: 4.3★ from 6 Google reviews, listed on Google as “HVAC contractor”.
Based in Roma
Ranked #4 because of its Google rating and trade focus: 4.9★ from 15 Google reviews, listed on Google as “Air conditioning contractor”.
Based in Rio Grande City, 12 mi away
Ranked #5 because of its Google rating and review volume: 4.9★ from 60 Google reviews, the most in Roma.
Based in Rio Grande City, 8 mi away
Ranked #6 because of its Google rating and review volume: 3.2★ from 26 Google reviews.
Based in Rio Grande City, 9 mi away
Ranked #7 because of its Google rating and trade focus: 3.7★ from 3 Google reviews, listed on Google as “Roofing contractor”.
National price ranges in USD, not adjusted for Roma. 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 7 Roma 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 Roma 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 |