Family-Owned Since 1974 Licensed & Insured · TACL A16607C Woman-Owned Business
24/7 Emergency AC Repair

Commercial AC Repair

Texas summers are brutal on commercial air conditioning. When your AC fails at peak cooling season, Kahn Mechanical delivers fast, professional repair across Dallas-Fort Worth, getting your building comfortable again before the disruption spreads.

Commercial AC Repair

Professional AC Repair for Every Commercial Cooling System

Commercial air conditioning works harder in North Texas than almost anywhere in the country. Months of 100°F+ heat push rooftop units, chillers, and split systems to their limits, and when they fail your tenants, employees, and operations feel it immediately. Kahn Mechanical repairs every type of commercial cooling equipment, serving office buildings, industrial facilities, retail centers, and multi-tenant properties across Dallas, Plano, Richardson, Irving, and Frisco.

Our technicians arrive with advanced diagnostic tools, manufacturer-specific knowledge, and fully stocked trucks carrying common replacement parts. We service all major commercial AC brands, including Carrier, Trane, York, Lennox, Rheem, Goodman, and Daikin. Whether it is a failed compressor on a 20-ton rooftop unit, a refrigerant leak in a split system, or a control fault on a 200-ton chiller, we identify the problem accurately and fix it to last. We also service VRF systems that are becoming common in multi-zone buildings.

Facility managers need more than a quick patch. Every AC repair includes full diagnostics to uncover the underlying issues that cause repeat failures. We check refrigerant levels, test electrical components, inspect ductwork, verify thermostat calibration, and examine control sequences. This is part of our broader commercial HVAC service, and it is what keeps the same problem from coming back.

50+Years Serving DFW
24/7Emergency AC Repair
2-HrContract Response
200-TonChillers Serviced
Emergency Response

Emergency AC Response When Cooling Failures Cannot Wait

Air conditioning breakdowns do not follow convenient schedules, and Texas heat does not give your tenants a break while you wait. Kahn Mechanical provides 24/7 emergency AC repair with 2-hour response for maintenance contract customers across the entire Metroplex. When you call, you reach our dispatch team directly, not a voicemail system or automated menu, and we coordinate immediate technician deployment.

Summer AC failures create real emergencies. Office workers lose productivity, retail customers walk out, data centers risk equipment damage, restaurant walk-ins cannot hold safe temperatures, and medical facilities face patient safety concerns. We prioritize these situations and send technicians with the specific expertise your equipment requires, from precision cooling to industrial process cooling to standard comfort air conditioning.

Emergency service does not mean rushed work or temporary patches. We run complete diagnostics even under pressure, provide transparent pricing before starting, and explain exactly what failed and why. For failures that hit outside business hours, our emergency HVAC repair team is on call around the clock.

What We Repair

Common Commercial AC Problems We Repair

Certain failures show up again and again in the DFW climate. These are the ones we resolve most.

Compressor Failures
Electrical faults, refrigerant problems, and years of summer runtime wear compressors out. We repair or replace them with correct charging and system protection so the new component lasts.
Refrigerant Leaks
We find leaks with electronic detectors and UV dye, then repair them properly and recharge to spec. With R-22 over $150 per pound, sealing a leak beats topping off a leaking system.
Electrical and Controls
Failed contactors, capacitors, control boards, and thermostats cause shutdowns and wild temperature swings. We test voltage, amperage, and control signals to pinpoint the fault.
Dirty Coils and Airflow
Dirty coils, clogged filters, and failing blower motors cut cooling capacity and drive up energy bills. We restore airflow and clean coils on every service call.
Diagnosis

AC Symptoms and What They Point To

A quick guide to what your cooling system is telling you, and how we respond.

SymptomLikely CauseHow We Respond
Warm air from the ventsLow refrigerant or a failed compressorLeak detection and recharge, or compressor repair
Runs but will not coolDirty coils or restricted airflowCoil cleaning and airflow restoration
System short-cyclesFailed capacitor or contactorElectrical component testing and replacement
Rising energy billsRefrigerant leak or a fouled systemLeak repair, cleaning, and a performance tune-up
No power to the unitControl board or thermostat faultControls diagnosis and board or thermostat repair
Our Process

How Our AC Repair Process Works

A diagnostic-first method that fixes the cause, not just the symptom.

1
Direct Dispatch
You reach a real person who understands your building and sends the right technician, with no phone tree in the way.
2
Full Diagnostics
We test refrigerant, electrical, airflow, and controls to find the true cause, not just the surface symptom.
3
Upfront Pricing
You approve clear, itemized pricing before any repair begins. No surprises when the invoice arrives.
4
Repair and Document
We repair to manufacturer spec and code, then hand you full documentation for your maintenance history.
Prevention

Preventive AC Maintenance That Stops Breakdowns Before They Start

The most effective AC repair is the breakdown you never have. Properties that invest in regular air conditioning maintenance see far fewer emergency failures and lower total cooling costs than those that only call when a system quits. Our maintenance contracts use inspection schedules tailored to your equipment age, operating hours, and facility needs.

We catch developing problems early. Worn contactors, failing capacitors, dirty coils, low refrigerant, and electrical issues get addressed before they shut a system down on the hottest day of the year. Regular service also keeps equipment efficient, which reduces energy costs by 15 to 25 percent compared to neglected systems, and extends equipment life so you delay expensive capital replacements.

Contract customers get predictable monthly costs, priority emergency scheduling, discounted labor, and detailed service reports that help you justify budgets to ownership. Learn more about our preventive maintenance programs.

Why Kahn

Why Facility Managers Choose Kahn Mechanical

Direct dispatchReal people answer, with no offshore call centers or voicemail queues.
Factory-certified techniciansNATE-certified, EPA Universal, and trained on current cooling equipment.
All major AC brandsCarrier, Trane, York, Lennox, Rheem, Goodman, and Daikin.
Electronic leak detectionWe find and seal leaks instead of endlessly adding costly refrigerant.
Root-cause repairsWe fix the real problem so you stop paying for repeat visits.
Upfront pricingClear costs approved before work starts, every time.
R-22 and R-410A expertiseWe service legacy and modern refrigerants and plan smart transitions.
50 years in DFWFamily-owned since 1974 and trusted across the Metroplex.
Proof

Trusted by Commercial Properties Across DFW

TTI, Inc. on partnering with Kahn Mechanical

Scofield Memorial Church has realized a fifty thousand dollar savings in energy in the last twelve months from the upgrade in HVAC units completed just last summer, a one-third reduction in our total electrical bill.

Director of OperationsScofield Memorial Church

See the buildings we keep comfortable on our projects page, and read more feedback on our testimonials page.

Coverage

Serving Commercial Properties Across Dallas-Fort Worth

We have repaired commercial air conditioning across North Texas since 1974, covering Dallas, Collin, Denton, and Tarrant Counties. Find detailed local coverage on our service areas pages.

Dallas County

  • Dallas
  • Irving
  • Richardson
  • Garland
  • Mesquite
  • Carrollton
  • Farmers Branch

Tarrant County

  • Fort Worth
  • Arlington
  • Grapevine
  • Southlake

Collin County

  • Plano
  • Frisco
  • McKinney
  • Allen

Denton County

  • Denton
  • Lewisville
  • Flower Mound
  • Little Elm
Request Service

Get a Fast Response From Kahn Mechanical

Request Commercial AC Repair

Tell us what your cooling system is doing, and we will get right back to you.

Prefer to talk now? Call 214-831-5551
Common Questions

Commercial AC Repair FAQ

How fast can you respond to a commercial AC emergency?
We provide 24/7 emergency AC repair across Dallas-Fort Worth, with priority 2-hour response for maintenance contract customers. When you call, you reach our dispatch team directly, not a voicemail system or automated menu, and we coordinate immediate technician deployment from a fleet positioned across the Metroplex. For critical situations like data centers, medical facilities, and restaurant refrigeration, we prioritize your call and send the right expertise first.
Do you repair rooftop AC units?
Yes. Rooftop packaged units are one of the most common systems we service. We repair compressors, refrigerant leaks, economizers, control boards, belts, and blower motors on rooftop units from every major manufacturer, including Carrier, Trane, York, Lennox, Rheem, Goodman, and Daikin. See our rooftop units page for more detail.
What is the difference between AC repair and HVAC repair?
AC repair focuses specifically on cooling equipment, the compressors, refrigerant, condensers, and air handlers that keep your building cool. HVAC repair is broader and covers both heating and cooling, including furnaces, boilers, heat pumps, and controls. If your problem is strictly cooling, you are on the right page. If you need heating service or general system repair, visit our commercial HVAC repair page.
Can you still service equipment that uses R-22 refrigerant?
Yes. Many commercial buildings still run systems that use R-22, and we service and repair them. Because R-22 is phased out and now costs over $150 per pound, we focus on finding and sealing leaks rather than repeatedly topping off a leaking system. When a unit reaches the point where R-22 costs outweigh its value, we help you plan a strategic replacement with modern, efficient equipment.
How much does commercial AC repair cost?
Cost depends on the equipment, the failed component, and the scope of the work, so we provide upfront pricing before any repair begins. You will know what failed, why, and what the fix costs before we start. Because we diagnose the root cause rather than the symptom, you avoid paying for repeat calls on the same problem.
Do you offer AC maintenance contracts?
Yes. Our commercial AC maintenance contracts include scheduled inspections tailored to your equipment and operating hours, priority emergency scheduling, discounted labor, and detailed service reports. Regular maintenance can cut cooling energy costs by 15 to 25 percent and prevents most breakdowns during peak summer. Learn more on our preventive maintenance page.

Keep Your Building Cool All Summer

Fast commercial AC repair across Dallas-Fort Worth from a team that has beaten Texas heat since 1974.