33 AC Repair Contractors in Frederick, MD

4.8 avg rating
14,503 total reviews13 offer 24/7 service
Need emergency service? 14 HVAC providers in Frederick offer 24/7 availability

Top-Rated AC Repair Contractors in Frederick

#1

Smock Heating & Air

5.0(1,711 reviews)
Highly Rated

Every reviewer award Smock Heating & Air a perfect 5 stars, with customers highlighting same-day arrivals, thorough clean-up practices, and technician…

1539 Tilco Dr Unit 104, Frederick, MD 21704
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#2

Tuckers Air Conditioning, Heating & Plumbing

4.9(1,657 reviews)
Highly Rated

Every reviewer awarded 5 stars, with specific technician names appearing across multiple positive accounts. Customers consistently praisedadvance notification…

4650 Wedgewood Blvd #102, Frederick, MD 21703
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#3

TriState Home Services

4.8(1,715 reviews)
24/7 Highly Rated

Every visible reviewer awarded 5 stars, with multiple customers specifically naming the technician who assisted them and describing detailed explanations…

82A Wormans Mill Ct, Frederick, MD 21701
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All AC Repair Contractors (33 total)

Wenbrooke Services - Electrical, Plumbing, Heating and Air

4.9(1,287)
24/7 Highly Rated

Every reviewer awarded five stars, with 1,287 verified ratings constituting a near-perfect satisfaction…

4907 International Blvd #113, Frederick, MD 21703
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May's Heating & Air Conditioning

5.0(945)
Highly Rated

Five reviewers specifically named technicians Brian, Todd M., Karen, or the team, describing diagnostic…

8420 Gas House Pike DD, Frederick, MD 21701
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Larry & Sons Plumbing, Heating, Cooling, Drain & Electrical

4.8(991)
24/7 Highly Rated

Nearly all reviews mention specific technicians by name and praise punctuality and professionalism, with…

5744 Industry Ln Suite N, Frederick, MD 21704
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United Air Temp

4.7(928)
24/7

Among nine verified reviews, six five-star entries uniformly praise technician professionalism and on-time…

5305 Jefferson Pike Suite 5, Frederick, MD 21703
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Honest Air Heating & Air Conditioning

5.0(568)
Highly Rated

Every reviewer awards five stars, with technicians named across multiple reviews including Stephen, Joseph,…

511 N Bentz St, Frederick, MD 21701
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Markool Heating Cooling Plumbing

4.9(565)
24/7 Highly Rated

Every reviewer awarded 5 stars, with multiple customers noting same-day response times and the company's…

5304C Kings Ct, Frederick, MD 21703
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Warner Service

4.8(558)
24/7 Highly Rated

Every reviewer mentions same-day or emergency response times, with several specifically naming technicians…

217 Monroe Ave, Frederick, MD 21701
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Frederick Air Inc

4.8(554)
24/7 Highly Rated

All five-star reviewers mention specific technicians by name, with Jason, Jeff, Mike, Justin, and Caleb…

3 King Ave, Frederick, MD 21701
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BPM Heating, Cooling & Plumbing

5.0(398)
Highly Rated

All 398 reviews award 5 stars, a rare achievement indicating consistent customer satisfaction. Multiple…

300 E 4th St Unit A, Frederick, MD 21701
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Airtron Heating & Air Conditioning

4.5(774)
24/7

774 reviews yield a 4.5-star average, with four named technicians receiving consistent praise for diagnostic…

5123 Pegasus Ct Suites K-N, Frederick, MD 21704
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W.A. Tolbard Gas Fireplace Shop

4.9(289)
Highly Rated

Two hundred eighty-nine reviewers award this Frederick fireplace specialist a 4.9 average rating, with every…

413 N East St, Frederick, MD 21701
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B&B Air Conditioning & Heating Service

4.8(273)
Highly Rated

All three featured reviews award 5 stars, emphasizing diagnostic thoroughness, warranty processing, and…

183 E South St, Frederick, MD 21701
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Aero Energy

4.9(229)
Highly Rated

Seven of eight reviewers awarded five-star ratings, with recurring themes of same-day emergency response,…

8038 Liberty Rd, Frederick, MD 21701
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Amerilogic

5.0(146)
Highly Rated

Five-star ratings dominate the feedback, with 146 reviews producing a perfect 5.0 average. Reviewers…

5100 Buckeystown Pike suite 250, Frederick, MD 21704
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Wyant Service Experts

4.8(168)
24/7 Highly Rated

One hundred sixty-eight reviews cluster tightly at the five-star level, with clients consistently praising…

4959 New Design Rd, Frederick, MD 21703
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Alexair, LLC

5.0(120)
Highly Rated

Seven of seven sampled reviewers awarded 5-star ratings and specifically mentioned same-day or rapid-response…

427 Megan Ct, Frederick, MD 21701
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Wenbrooke Services AC Repair, Plumbing, Heating and Electrician

5.0(110)
24/7 Highly Rated

Nearly all reviewers assign five stars, with twelve published accounts unanimously praising transparency in…

617 W Patrick St Suite 220, Frederick, MD 21701
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Michael & Son Services

4.4(183)
24/7

Of 183 reviews informing the 4.4-star rating, dissatisfied customers cite insufficient diagnosis combined…

5730 Industry Ln, Frederick, MD 21704
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N E Bob Waltz Plumbing & Heating Inc

4.7(103)

Four of four featured reviewers awarded five stars, with technicians named Joe, Jackson, and Steve appearing…

8098 Hillmark Ct, Frederick, MD 21704
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Tetteris Hvac llc.

4.6(102)

Two of three substantive reviews describe same-day or rapidly-responsive service during heat wave…

8600 Chestnut Grove Rd, Frederick, MD 21701
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Mid-Atlantic Comfort Specialists

4.5(48)

Three of four detailed reviews award five stars, citing specific technician competence, same-day…

11327 Liberty Rd B, Frederick, MD 21701

Prime AC Repair Frederick

5.0(16)
24/7

Three of eight reviewers specifically praise 45-minute response times during emergencies, while two mention…

19 Industry Ln, Frederick, MD 21704
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Weather Masters Corporation

4.8(17)

Fourteen of seventeen reviewers award five-star ratings, with multiple clients praising same-day technician…

4509 Metropolitan Ct Unit D, Frederick, MD 21704
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Frederick Heating & Air Conditioning Services

4.8(16)

Across 16 reviews, Frederick Heating & Air Conditioning Services holds a 4.8-star average with 15 five-star…

5732 Buckeystown Pike, Frederick, MD 21704
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America's Green Heating & AC Co., LLC.

4.5(15)

Twelve of fifteen reviewers awarded five stars, citing honesty, fair pricing, and technician professionalism.…

6907 Baltimore National Pike #7, Frederick, MD 21702
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Holtzople Heating, Air Conditioning & Electrical Services

5.0(11)
24/7

All 11 client reviews award 5 stars, with multiple reviewers highlighting same-day availability, arrival…

176 Thomas Johnson Dr # 104, Frederick, MD 21702
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Maryland Mechanical Services HVAC LLC

5.0(6)

All six reviews award five stars, with every reviewer highlighting specific positive attributes: reliability,…

6134 Pine Crest Ln, Frederick, MD 21701
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AC Repair Costs in Frederick

Typical repair costs for Frederick homeowners, by problem type.

ServiceLowAverageHigh
Diagnostic / service call
Usually credited toward repair
$75$120$200
Refrigerant recharge (R-410A)
$150$350$700
Capacitor replacement
$120$250$450
Fan motor replacement
$250$450$700
Compressor replacement
$800$1,800$2,800
Evaporator coil repair
$400$900$1,500
Labor (hourly rate)
Per hour during business hours
$75$110$150

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

AC Repair in Frederick, MD: What to Expect

Frederick sits within the Baltimore metropolitan orbit, where summer temperatures climb into the upper 80s and the Chesapeake Bay humidity presses down with an almost tangible weight. That moisture-laden heat pushes cooling systems hard, and when the thermostat clicks on only to meet silence, homeowners need fast answers. Thirty-three licensed contractors serve this market, and together they have accumulated over fourteen thousand reviews averaging 4.8 stars. The demand for AC Repair in Frederick is driven by those brutal summer weeks when a failed compressor means sleepless nights and rising indoor humidity turns a home clammy.

Pricing follows predictable patterns here. A diagnostic service call typically runs $75 to $200, while refrigerant recharges for R-410A systems land between $150 and $700 depending on system size and labor access. Capacitor replacements, a common fix for units that hum but refuse to start, cost $120 to $450. Every contractor working in Maryland must hold a Master HVACR License issued through the state Department of Labor, a credential that verifies both technical competency and regulatory compliance before any truck rolls toward your driveway.

Customer feedback paints a clear picture of what separates one company from another. Reviewers repeatedly mention Smock Heating & Air for arriving the same day and leaving the workspace cleaner than they found it, with technicians taking time to explain what the system is showing. At Tuckers Air Conditioning, customers note advance phone calls about arrival windows and a methodical approach that feels organized rather than improvised. TriState Home Services draws praise for technicians who walk homeowners through each finding, with multiple reviewers noting the same individual by name when describing thorough, educational service calls.

Frequently Asked Questions

AC repair in Frederick typically costs $75-$2,800 depending on the problem. Diagnostic calls run around $75-$200, refrigerant recharges $150-$700, capacitor replacement $120-$450, and compressor replacement $800-$2,800. Most contractors apply the diagnostic fee toward the final repair cost if you proceed.

All HVAC Contractors in Frederick, MD

Complete directory of 33 contractors — browse alphabetically

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