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Emergency HVAC Contractors in Bay Saint Louis, MS (2026)

Top 50 of 72 HVAC contractors, in emergency orderUpdated 0 paid placements in this rankingHow we rank

25 of the 50 HVAC contractors on this list post 24/7 hours. 24/7 businesses come first, then same-day, each ranked by CR Score with availability weighted higher.

If you smell gas, leave the building now and call your gas utility or 911 from outside.

The short answer

  1. 1

    #1 for emergency heating and cooling in Bay Saint Louis: TriedNTrue AC & Heat LLC, open 24/7.

Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank

Top emergency HVAC contractors in Bay Saint Louis at a glance

Top emergency HVAC contractors in Bay Saint Louis at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1TriedNTrue AC & Heat LLC635.0★ (94)Bay Saint Louis24/7
2Ball Heating, Cooling, Plumbing & Electrical634.9★ (4,917)Biloxi, 24 mi away24/7
3Blaize Heating & Air Conditioning625.0★ (57)Bay Saint Louis24/7
4Keith's Heating & Air Conditioning614.9★ (1,424)Gulfport, 21 mi away24/7
5Top Notch AC & Heat LLC615.0★ (64)Diamondhead, 7 mi away24/7
6In-Tuned Home Appliances, LLC604.9★ (1,097)Gulfport, 23 mi away24/7
7Wards Heating & Air Conditioning605.0★ (156)Gulfport, 16 mi away24/7
8All Phase A/C & Heating594.0★ (18)Bay Saint Louis24/7
9Bruce's A/C Heating & Refrigeration595.0★ (143)Gulfport, 17 mi away24/7
10Castle Cooling and Heating595.0★ (7)Bay Saint Louis24/7

Call an emergency HVAC contractor in Bay Saint Louis now

24/7 hours mean the business says its phone is answered around the clock. Arrival time depends on where the crew is. Ask for an arrival window when you call.

The 50 emergency HVAC contractors in Bay Saint Louis, ranked

24/7 first, then same-day service, then the rest. Each group is in CR Score order on emergency weights. The full ranking of all 72 is on the HVAC contractors page.

Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.

  24. #24 HP Mechanical LLC

    Based in Gulfport, 20 mi away

    54/100CR Score

    Ranked #24 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 5 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    2079 E Pass Rd Suite B, Gulfport, MS 39507
    View profile for HP Mechanical LLC(228) 265-9741

Top 50 of 72 HVAC contractors by emergency score

#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile.

HVAC contractors in Bay Saint Louis, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Mayo's Air Conditioning & Heating534.6★ (82)In Bay Saint Louis
27Askin for Air HVAC & Refrigeration535.0★ (3)22 mi
28Bellande Services494.7★ (26)21 mi
29Geiger Heating Air Refrigeration474.6★ (80)19 mi
30Ball Heating & AC Inc443.0★ (6)15 mi
31Tillman's Services424.9★ (1,010)20 mi
32Robbie's AC & Heat LLC (Air Conditioning & Heat Services)414.8★ (22)3 mi
33Air Conditioning and Heating414.6★ (28)3 mi
34Crosby's Heating & Air415.0★ (21)4 mi
35Able Air Conditioning and Heating414.7★ (96)11 mi
36Comforts on the Coast415.0★ (395)23 mi
37ASAP A/C And Heat414.7★ (10)In Bay Saint Louis
38Fleur De Lis Heating & Air404.9★ (122)16 mi
39Buck Ramond Heating and Air404.4★ (7)In Bay Saint Louis
40STAY COOL Heating & Air404.3★ (6)In Bay Saint Louis
41Griffith Properties A/C & Heating395.0★ (126)22 mi
42Honest Air and Heating395.0★ (31)14 mi
43Dependable AC and Heat394.8★ (73)19 mi
44Cooler Solutions, LLC Heating & Air384.8★ (30)15 mi
45Adolph Bourdin Inc.385.0★ (3)6 mi
46Heating & Air Conditioning385.0★ (19)17 mi
47Heating And Air Conditioning384.7★ (21)16 mi
48C J Services Inc375.0★ (18)17 mi
49Heating & Cooling373.8★ (18)12 mi
50Southland Heating & Air Condition INC374.3★ (6)10 mi

How we ranked emergency HVAC contractors in Bay Saint Louis

Emergency lists move 10 points of the CR Score from reputation to availability: 15% and 15%. Availability credits 24/7 hours, same-day service, weekend hours and weekly open hours. 24/7 HVAC contractors are listed first, then same-day, then the rest; ranks follow that order. Paid placement never changes a rank.

Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed from
Reputation15%Google star rating, adjusted for how many reviews back it
Credentials15%Active state license, bond and workers’ comp on file
Review volume10%Number of Google reviews, compared with the most-reviewed business on the list
Recency5%Share of reviews from the last 12 months
Availability15%Weekly open hours, Saturday, Sunday, 24/7 or same-day
Trade focus10%How clearly the business does this trade (its Google category and name)
Proximity5%Based in the city scores highest, less the farther away it is
Claimed profile10%The business has claimed its ContractorsRanked profile (free or paid earn the same)
Partnered5%The business links to ContractorsRanked from its own website with our badge, checked periodically
ContractorsRanked reviews10%Verified customer reviews collected by ContractorsRanked: their rating and how many there are

Emergency HVAC contractors in Bay Saint Louis: questions

Which HVAC contractors in Bay Saint Louis are open 24/7?

25 on this list post 24/7 hours, including TriedNTrue AC & Heat LLC, Ball Heating, Cooling, Plumbing & Electrical, Blaize Heating & Air Conditioning, Keith's Heating & Air Conditioning and Top Notch AC & Heat LLC.

Who is ranked #1 for emergency heating and cooling in Bay Saint Louis, MS?

TriedNTrue AC & Heat LLC is #1, with a CR Score of 63 out of 100 on emergency weights.

How are emergency HVAC contractors in Bay Saint Louis ranked?

Emergency lists move 10 points of the CR Score from reputation to availability: 15% and 15%. Availability credits 24/7 hours, same-day service, weekend hours and weekly open hours. 24/7 HVAC contractors are listed first, then same-day, then the rest; ranks follow that order. Paid placement never changes a rank.

What should I do before the HVAC contractor arrives?

If you smell gas, leave the building now and call your gas utility or 911 from outside.

How many emergency HVAC contractors here list a phone number?

24 of the 25 businesses ranked in full list a phone number. Tap Call to dial it.

Update log for Bay Saint Louis

  1. October 2026: CR Scores recalculated for 72 hvac contractors serving Bay Saint Louis.

More emergency and heating and cooling pages