88 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Diamondhead: Ball Heating, Cooling, Plumbing & Electrical, CR Score 62/100; 4.9★ from 4,917 Google reviews; open 24/7.
Best for emergencies (open 24/7): Top Notch AC & Heat LLC, posts 24/7 hours; ranked #2 of 88.
Most-reviewed: Keith's Heating & Air Conditioning, 1,424 Google reviews at 4.9★, the most of 88 ranked after Ball Heating, Cooling, Plumbing & Electrical; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
88 Diamondhead HVAC contractors are ranked here by CR Score, from ten published factors. 31 are open 24/7, 60 open Saturdays and 49 open Sundays, based on posted hours. The median Google rating is 4.9★ across 88 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Ball Heating, Cooling, Plumbing & Electrical | 62 | 4.9★ (4,917) | Biloxi, 24 mi away | 24/7 | Overall |
| 2 | Top Notch AC & Heat LLC | 62 | 5.0★ (64) | Diamondhead | 24/7 | Emergencies |
| 3 | Keith's Heating & Air Conditioning | 62 | 4.9★ (1,424) | Gulfport, 18 mi away | 24/7 | Most reviews |
| 4 | TriedNTrue AC & Heat LLC | 61 | 5.0★ (94) | Bay Saint Louis, 7 mi away | 24/7 | — |
| 5 | In-Tuned Home Appliances, LLC | 61 | 4.9★ (1,097) | Gulfport, 21 mi away | 24/7 | — |
| 6 | Southern Style Heating & Air LLC | 59 | 5.0★ (240) | Biloxi, 19 mi away | 24/7 | — |
| 7 | Bruce's A/C Heating & Refrigeration | 59 | 5.0★ (143) | Gulfport, 17 mi away | 24/7 | — |
| 8 | Wards Heating & Air Conditioning | 58 | 5.0★ (156) | Gulfport, 14 mi away | 24/7 | — |
| 9 | Tillman's Services | 58 | 4.9★ (1,010) | Gulfport, 18 mi away | Sat · Evenings | — |
| 10 | All Phase A/C & Heating | 58 | 4.0★ (18) | Bay Saint Louis, 2 mi away | 24/7 | — |
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 review volume: 4.9★ from 4,917 Google reviews, the most in Diamondhead.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Diamondhead
Ranked #2 because of its Google rating and trade focus: 5.0★ from 64 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Gulfport, 18 mi away
Ranked #3 because of its Google rating and trade focus: 4.9★ from 1,424 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bay Saint Louis, 7 mi away
Ranked #4 because of its Google rating and trade focus: 5.0★ from 94 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Gulfport, 21 mi away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 1,097 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Biloxi, 19 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 240 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Gulfport, 17 mi away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 143 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Gulfport, 14 mi away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 156 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Gulfport, 18 mi away
Ranked #9 because of its Google rating and trade focus: 4.9★ from 1,010 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bay Saint Louis, 2 mi away
Ranked #10 because of its Google rating and trade focus: 4.0★ from 18 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Biloxi, 22 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 395 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Carriere, 23 mi away
Ranked #12 because of its Google rating and trade focus: 4.9★ from 427 Google reviews, listed on Google as “Furnace repair service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bay Saint Louis, 20 mi away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 57 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bay Saint Louis, 7 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Air conditioning repair service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bay Saint Louis, 6 mi away
Ranked #15 because of its Google rating and trade focus: 4.6★ from 82 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Long Beach, 13 mi away
Ranked #16 because of its Google rating and trade focus: 4.7★ from 96 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Waveland, 7 mi away
Ranked #17 because of its Google rating and trade focus: 4.6★ from 28 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bogalusa, 20 mi away
Ranked #18 because of its Google rating and trade focus: 4.9★ from 55 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bay Saint Louis, 4 mi away
Ranked #19 because of its Google rating and trade focus: 4.7★ from 10 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Picayune, 21 mi away
Ranked #20 because of its Google rating and trade focus: 4.9★ from 463 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Slidell, 24 mi away
Ranked #21 because of its Google rating and trade focus: 4.8★ from 335 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bay Saint Louis, 7 mi away
Ranked #22 because of its Google rating and trade focus: 3.0★ from 5 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Gulfport, 17 mi away
Ranked #23 because of its Google rating and trade focus: 4.9★ from 122 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Slidell, 23 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 30 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Gulfport, 15 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 18 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 88 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 |
|---|---|---|
| AirTech Of Waveland | 5.0★ (2) | In Diamondhead |
| Askin for Air HVAC & Refrigeration | 5.0★ (3) | 22 mi |
| Assured Comfort Air Conditioning & Heating | In Diamondhead | |
| Ball Heating & AC Inc | 3.0★ (6) | 16 mi |
| Bellande Services | 4.7★ (26) | 25 mi |
| Brendan's Air Conditioning & Heating | 4.9★ (40) | 24 mi |
| Buck Ramond Heating and Air | 4.4★ (7) | 3 mi |
| Coast Heating and Air, LLC | 5.0★ (2) | 19 mi |
| Coastal Comfort Solutions | 5.0★ (1) | 20 mi |
| Dunhurst Air & Heat LLC | 3.7★ (6) | 21 mi |
| Gabe's AC | 5.0★ (2) | 16 mi |
| Global Cooling | 1.0★ (2) | 14 mi |
| Griffith Properties A/C & Heating | 5.0★ (126) | 22 mi |
| JG's A/C and Heating LLC. | 5.0★ (1) | 16 mi |
| Jp air Dr llc | 5.0★ (5) | 25 mi |
| Larson's AC and Heating | 4.3★ (12) | 25 mi |
| Picayune Refrigeration Services | 4.0★ (1) | 23 mi |
| Sanitize Now | 5.0★ (1) | 18 mi |
| Service Experts | 5.0★ (1) | 17 mi |
| Tri Parish A/C & Refrigeration | 5.0★ (2) | 24 mi |
National price ranges in USD, not adjusted for Diamondhead. 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 Mississippi, 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 88 Diamondhead 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 Diamondhead 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 |