15 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Aztec: M&R Service, CR Score 86/100; 4.9★ from 3,115 Google reviews; open 24/7.
Best for emergencies (open 24/7): High Norrthern Plumbing and Heating LLC, posts 24/7 hours; ranked #3 of 15.
Most-reviewed: Robbins Heating and Air Conditioning, 1,886 Google reviews at 4.9★, the most of 15 ranked after M&R Service; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
15 Aztec HVAC contractors are ranked here by CR Score, from 8 published factors. 2 are open 24/7, 2 open Saturdays and 2 open Sundays, based on posted hours. The median Google rating is 4.3★ across 15 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | M&R Service | 86 | 4.9★ (3,115) | Farmington, 15 mi away | 24/7 | Overall |
| 2 | Robbins Heating and Air Conditioning | 82 | 4.9★ (1,886) | Farmington, 12 mi away | — | Most reviews |
| 3 | High Norrthern Plumbing and Heating LLC | 77 | 4.0★ (4) | Bloomfield, 7 mi away | 24/7 | Emergencies |
| 4 | Complete Comfort Heating and Cooling LLC | 76 | 5.0★ (11) | Aztec | — | — |
| 5 | R.A. Biel Plumbing & Heating, Inc. | 75 | 4.5★ (604) | Farmington, 16 mi away | — | — |
| 6 | Comfort Solutions Mechanical | 71 | 4.2★ (27) | Farmington, 12 mi away | — | — |
| 7 | Alexander's Plumbing, Heating, and Air Conditioning | 70 | 5.0★ (4) | Farmington, 9 mi away | — | — |
| 8 | Medallion Heating | 70 | 4.3★ (28) | Farmington, 14 mi away | — | — |
| 9 | Fentiman Plumbing & Heating | 70 | 5.0★ (5) | Farmington, 13 mi away | — | — |
| 10 | Foster Plumbing & Heating Co | 69 | 3.5★ (32) | Farmington, 14 mi away | — | — |
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Scores below: based on 6 of 8 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Ranked #1 because of its Google rating and review volume: 4.9★ from 3,115 Google reviews, the most Google reviews on this list (3,115).
Based in Farmington, 12 mi away
Ranked #2 because of its Google rating and trade focus: 4.9★ from 1,886 Google reviews, listed on Google as “HVAC contractor”.
Based in Bloomfield, 7 mi away
Ranked #3 because of its Google rating and availability: 4.0★ from 4 Google reviews, open 24/7.
Based in Aztec
Ranked #4 because of its Google rating and trade focus: 5.0★ from 11 Google reviews, listed on Google as “HVAC contractor”.
Based in Farmington, 16 mi away
Ranked #5 because of its Google rating and trade focus: 4.5★ from 604 Google reviews, listed on Google as “HVAC contractor”.
Based in Farmington, 12 mi away
Ranked #6 because of its Google rating and trade focus: 4.2★ from 27 Google reviews, listed on Google as “HVAC contractor”.
Based in Farmington, 9 mi away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Air conditioning contractor”.
Based in Farmington, 14 mi away
Ranked #8 because of its Google rating and trade focus: 4.3★ from 28 Google reviews, listed on Google as “HVAC contractor”.
Based in Farmington, 13 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Heating contractor”.
Based in Farmington, 14 mi away
Ranked #10 because of its Google rating and trade focus: 3.5★ from 32 Google reviews, listed on Google as “HVAC contractor”.
Based in Farmington, 14 mi away
Ranked #11 because of its Google rating and trade focus: 3.3★ from 7 Google reviews, listed on Google as “Air conditioning contractor”.
Based in Farmington, 9 mi away
Ranked #12 because of its Google rating and trade focus: 4.3★ from 17 Google reviews, listed on Google as “Plumber”.
Based in Farmington, 14 mi away
Ranked #13 because of its Google rating and trade focus: 2.7★ from 34 Google reviews, listed on Google as “HVAC contractor”.
Based in Farmington, 12 mi away
Ranked #14 because of its Google rating and trade focus: 4.2★ from 40 Google reviews, listed on Google as “Plumber”.
Based in Farmington, 12 mi away
Ranked #15 because of its Google rating and trade focus: 3.6★ from 17 Google reviews, listed on Google as “Excavating contractor”.
National price ranges in USD, not adjusted for Aztec. 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 New Mexico, New Mexico Construction Industries Division licenses Heating, ventilation, air conditioning and refrigeration work.
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 New Mexico, 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 Aztec HVAC contractors on 8 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. Unknown factors are left out of the score, 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 Aztec data |
|---|---|---|---|
| Reputation | 35% | Bayesian-adjusted Google star rating | Measured |
| Credentials | 15% | Active state license 0.6, bond 0.2, workers’ comp 0.2 | Not yet collected |
| Review volume | 10% | log10(reviews + 1) against the list maximum | Measured |
| Recency | 10% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 10% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | Google main category 1.0, business name 0.7, additional category 0.5 | Measured |
| Proximity | 5% | 1.0 when based in the city, falling to 0 at the trade’s radius | Measured |
| Completeness | 5% | Website, photos, description, hours, claimed profile (0.2 each) | Measured |