Residential & commercial
Air Conditioning Repair in Greater Pittsburgh
When your air conditioner stops working, you need a technician who can diagnose the problem quickly and fix it right. Heirloom Mechanical provides air conditioning repair for homes and businesses throughout Allegheny, Westmoreland, Fayette, and Washington counties.
AC Systems We Service
Central air conditioning
Split systems, packaged units, and multi-zone central AC
Ductless mini-splits
Single-zone and multi-zone ductless systems
Heat pumps (cooling mode)
Air-source and ground-source heat pump systems
Commercial cooling systems
Rooftop units, commercial split systems, and light commercial equipment
Signs Your AC Needs Repair
Our Repair Process
Diagnosis
We perform a thorough inspection to identify the root cause of the problem — not just the symptom.
Clear explanation
We explain what we found, what it will take to fix it, and what it will cost before any work begins.
Repair
Our technicians carry common parts to complete most repairs in a single visit.
Verification
We test the system after repair to confirm it's operating correctly before we leave.
Repair or Replace?
Not every AC problem is worth repairing. If your system is more than 10–15 years old, requires frequent repairs, or uses R-22 refrigerant (no longer manufactured), replacement may be the more cost-effective choice. We'll give you an honest assessment and let you decide. Financing may be available for qualifying replacement projects.
Learn about financing options for qualifying replacement projects →Frequently Asked Questions
Find HVAC Service in Your Community
Explore local heating, cooling, repair, replacement, and maintenance information for the communities we serve.
AC Not Cooling? We Can Help.
Call us or use the form below to request service. Available 24/7 for urgent situations.