6 Emergency HVAC Contractors in Catonsville, MD

3.9 avg rating
303 total reviews4 offer 24/7 service

Top-Rated Emergency HVAC Contractors in Catonsville

#1

Carver Heating & Cooling

5.0(88 reviews)
24/7

Every reviewer awarded 5 stars, with seven mentioning specific technicians by name and eight emphasizing professional communication and thorough cleanup. Four…

640 Frederick Rd suite 317, Catonsville, MD 21228
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#2

AJ Auto Repair and Towing/ MD Inspection

4.3(180 reviews)
24/7
1006 Cummings Ave, Catonsville, MD 21228
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#3

Hotshots Air Duct Cleaning

5.0(16 reviews)
24/7

Sixteen reviewers each awarded a 5-star rating, with multiple customers specifically mentioning same-day emergency response and the discovery of previously…

6 Smith Ln, Catonsville, MD 21228
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All Emergency HVAC Contractors (6 total)

Mechanical Engineering and Construction Corporation

3.8(12)

Three of four reviewers cite concerns about company driver behavior on area roads, with two specifically…

6159 Edmondson Ave Suite A, Catonsville, MD 21228
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A-Z Heating AC & Refrigeration

4.3(6)
24/7

Three reviews yield an average of approximately 3.7 stars, with two five-star ratings praising emergency…

1012 Leslie Ave, Catonsville, MD 21228
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Aire Serv of Columbia

1.0(1)

The single available reviewassigns one star, expressing dissatisfaction through the brief comment cold turn…

1005 Frederick Rd, Catonsville, MD 21228
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Emergency HVAC Costs in Catonsville

After-hours, weekend, and holiday HVAC service pricing in Catonsville. Rates are typically 1.5-2x standard.

ServiceLowAverageHigh
After-hours service call (weekday night)
Base fee before labor
$150$200$300
Weekend service call
$175$225$325
Holiday / major holiday call
$225$300$450
Emergency labor (hourly)
1.5-2x standard hourly rate
$160$205$250
Emergency repair total (typical)
Repair + after-hours surcharge
$300$700$1,200
Emergency repair (major)
Compressor, heat exchanger failures
$1,200$2,200$3,500

Prices reflect humid subtropical metro averages compiled from published industry cost guides, contractor surveys, and regional labor data. Last updated: April 2026.

Emergency HVAC in Catonsville, MD: What to Expect

Catonsville residents face a demanding climate that keeps Emergency HVAC in Catonsville in steady demand. Summer temperatures climb into the 88-degree range with the Chesapeake Bay's humidity adding significant latent cooling loads, while winters average a brisk 27 degrees and test heating systems to their limits. Six contractors serve the area with an average rating of 3.9 across 303 customer reviews, giving homeowners options when systems fail during extreme weather.

After-hours service calls on weeknights typically range from $150 to $300, while weekend service calls run $175 to $325. Holiday calls, including major holidays, command the highest rates at $225 to $450, reflecting the premium demanded for working outside normal business hours. Maryland requires contractors to hold a Master HVACR License from the state Department of Labor, a credential that serves as the baseline for professional qualification in this market.

Reviewers consistently highlight response time and communication as decisive factors. At Carver Heating & Cooling, every reviewer awarded five stars, with seven mentioning specific technicians by name and eight emphasizing thorough cleanup and professional communication. Several noted same-day or next-day service, a pattern repeated at Hotshots Air Duct Cleaning, where customers praised rapid emergency response and the detection of previously unidentified system hazards.

Frequently Asked Questions

Emergency HVAC in Catonsville adds a premium of $100-$300 to the standard service call fee, with labor billed at 1.5-2x normal rates. After-hours weekday calls typically run $150-$300 before repairs, weekends $175-$325, and holidays $225-$450. Total emergency repair costs usually land between $300-$1,200.