Sep 3, 2026
AC Blowing Warm Air? Common Causes and Fixes
Reading Time About 6 Min
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Residential HVAC
Mullen Heating and Air Conditioning
VerifiedEstablished · 20 yrs
4.8(107 reviews)•Residential
EPANCILicense #HV05135
Locally owned, family-operated HVAC service provider offering installation, maintenance, and repair of heating and cooling systems for residential and commercial properties in Pittsburgh.
20
Years in Business
Yes
Emergency Service
Services Offered
HVAC installation
HVAC maintenance
HVAC inspectionsHVAC repair
preventative maintenancehour emergency serviceresidential HVAC services
commercial HVAC services
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Blog / News
View all articles HVAC Tips, Guides & Industry News
Sep 2, 2026
Why Does My Furnace Smell Like Burning?
Reading Time About 6 Min
Sep 1, 2026
Why Is My AC Making a Loud Noise?
Reading Time About 7 Min
Aug 31, 2026
Summer 2026’s Record Heat Pushed AC Demand to All-Time Highs: How to Get Ready
Reading Time About 5 Min
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