Family-Owned Since 1974 Licensed & Insured · TACL A16607C Woman-Owned Business
Same-Day Commercial Service

Commercial HVAC Repair

When your commercial HVAC system goes down, every minute counts. Kahn Mechanical delivers fast, accurate repair across Dallas-Fort Worth, from rooftop units and chillers to boilers and building automation, and we fix it right the first time.

Commercial HVAC Repair

Expert Repair for Every Commercial HVAC System

Commercial buildings run on complex heating and cooling equipment that cannot afford extended downtime. When a system fails, tenants complain, operations stall, and ownership starts asking about cost. Kahn Mechanical has been repairing commercial HVAC across Dallas-Fort Worth since 1974, and our certified technicians diagnose the real problem, not just the symptom, so the same issue does not keep coming back.

Our team services rooftop packaged units, split systems, chillers, boilers, VRF systems, heat pumps, and building automation controls from every major manufacturer, including Carrier, Trane, York, Lennox, and Daikin. Technicians arrive in fully stocked trucks with advanced diagnostic tools and direct access to parts suppliers throughout the Metroplex, which means faster fixes and fewer repeat visits.

From single-zone split systems to 200-ton chillers serving entire office towers, we have the technical depth and parts access to handle repairs many contractors cannot. Every technician holds factory certifications and trains continuously on evolving equipment, so your building gets expert care regardless of its age or complexity. Explore the full category on our commercial HVAC services page.

50+Years Serving DFW
24/7Emergency Response
Same-DayService Calls
200-TonChillers Serviced
Rapid Response

Fast Response When Breakdowns Cannot Wait

Texas heat does not keep business hours, and neither do HVAC failures. When cooling drops on a 100°F afternoon or a boiler quits on the coldest morning of the year, we respond fast. We offer same-day service on repair calls across Dallas, Fort Worth, Frisco, Carrollton, and the surrounding area, and maintenance contract customers receive priority 2-hour emergency response.

Our dispatch team answers directly. No voicemail, no offshore call center. You reach someone who understands your situation and can coordinate immediate technician deployment from a fleet positioned across the Metroplex. For critical facilities like data centers, healthcare buildings, and temperature-sensitive manufacturing, we prioritize your call and send the right expertise first.

Fast does not mean rushed. Our technicians run thorough diagnostics even under pressure, because temporary fixes tend to cost more later. You get upfront pricing before work begins and repairs that meet manufacturer specifications and local code. For after-hours failures, see our emergency HVAC repair service.

What We Fix

What Our Commercial HVAC Repair Covers

One call handles the full range of commercial repair work, from routine component failures to complex system faults.

Compressor failures and hard-start faults
Refrigerant leaks, recovery, and recharge
Control board, sensor, and thermostat faults
Motor, belt, and bearing replacement
Coil cleaning and airflow restoration
Ductwork, damper, and zoning repairs
VRF and variable-flow system service
Building automation (BAS) recalibration

After every repair we provide detailed documentation showing exactly what was replaced or adjusted. That record builds a maintenance history that helps you budget future replacements, explain costs to ownership, and support due diligence during property transactions.

Our Process

How Our 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 coordinates the right technician, with no phone tree in the way.
2
Root-Cause Diagnosis
We use advanced diagnostics to find what actually failed and why, so the same problem does not return next month.
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.
Repair or Replace

Repair or Replace? How We Help You Decide

When equipment fails, the right call depends on more than age. Here is how we weigh it with you.

ConsiderationRepair Makes SenseReplacement Makes Sense
Equipment AgeUnder roughly 10 to 12 years with useful life remainingNear or past its expected service life
Repair CostWell below the value of the unitApproaching or exceeding replacement cost
Breakdown HistoryFirst failure or an occasional issueFrequent, repeated service calls
Energy EfficiencyStill efficient for its classHigh energy bills from outdated equipment
Parts AvailabilityParts readily sourced across the MetroplexObsolete or discontinued components

We give you the honest recommendation, then help you plan strategically instead of reactively. Many facilities cut emergency calls by pairing repairs with our preventive maintenance programs, which catch worn belts, failing capacitors, and refrigerant leaks before they shut a system down.

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 equipment.
Fully stocked trucksAdvanced diagnostics and local parts access for faster fixes.
Root-cause repairsWe fix the real problem so you stop paying for repeat visits.
Upfront pricingClear costs approved before work starts, every time.
All major brandsCarrier, Trane, York, Lennox, Daikin, and more.
Detailed documentationA service record that supports budgeting and due diligence.
50 years in DFWFamily-owned since 1974 and trusted across the Metroplex.
Proof

Trusted by Commercial Properties Across DFW

Our project progressed with the highest degree of workmanship and professionalism. I have never been associated with a company that has such high standards and pure ethical scope.

Facilities ManagerJenterra LLC
Coverage

Serving Commercial Properties Across Dallas-Fort Worth

We have served the DFW Metroplex 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 HVAC Repair

Tell us about your building and equipment, and we will get right back to you.

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

Commercial HVAC Repair FAQ

How quickly can you get a technician to my building for an HVAC repair?
We offer same-day service on repair calls across Dallas-Fort Worth, and maintenance contract customers receive priority 2-hour emergency response. Our dispatch team answers directly, with no voicemail or offshore call centers, and we position service vehicles throughout the Metroplex to reach your property quickly. For critical facilities like data centers, healthcare buildings, and temperature-sensitive operations, we prioritize your call and mobilize the right technician right away.
Do you repair all brands of commercial HVAC equipment?
Yes. Our technicians service rooftop packaged units, split systems, chillers, boilers, VRF systems, heat pumps, and building automation controls from every major manufacturer, including Carrier, Trane, York, Lennox, and Daikin. We hold factory certifications and maintain direct access to parts suppliers across the Metroplex, so we can source components and complete repairs faster than contractors who lack those relationships.
How do I know if my HVAC system should be repaired or replaced?
We give you an honest assessment based on the equipment's age, the cost of the repair compared to the value of the unit, how often it has broken down, and its energy efficiency. When a repair makes financial sense, we fix it and document the work. When continued repairs no longer add up, we tell you plainly and help you plan a replacement strategically rather than reactively, so you can budget and present the decision clearly to ownership.
What does a commercial HVAC repair typically cost?
Cost depends on the equipment type, the failed component, and the scope of the work, so we provide upfront pricing before any repair begins. You will always know what failed, why it happened, and what the repair costs before we start. Because we diagnose the root cause instead of just the symptoms, you avoid paying for repeated service calls on the same issue.
Do you offer emergency HVAC repair after hours?
Yes. We provide 24/7 emergency HVAC repair for commercial properties across Dallas-Fort Worth. Texas heat and sudden winter cold snaps do not wait for business hours, so our team is available around the clock for breakdowns that cannot wait. Learn more on our emergency HVAC repair page.
What types of commercial buildings do you service?
We repair HVAC systems for office towers, industrial and warehouse facilities, healthcare buildings, worship centers, retail centers, restaurants, transportation facilities, and multi-tenant properties throughout Dallas, Collin, Denton, and Tarrant Counties. From single-zone split systems to 200-ton chillers serving entire office towers, we have the technical depth to handle repairs other contractors cannot.

Get Your Commercial HVAC System Back Online

Same-day repair across Dallas-Fort Worth from a team that has kept buildings running since 1974.