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Expert HVAC Services in Pittsburgh
Mullen Heating and Air Conditioning is a family-run business dedicated to delivering exceptional HVAC solutions for residential and commercial clients in Pittsburgh. With decades of hands-on experience, we prioritize preserving existing systems to maximize efficiency and cost-effectiveness, ensuring clients avoid unnecessary replacements. Our team of EPA and HVAC-certified technicians specializes in installation, repair, maintenance, and advanced air purification systems, tailored to meet the unique needs of each property.

We emphasize transparent communication, fair pricing, and 24/7 emergency service, reflecting our commitment to integrity and customer satisfaction. Backed by comprehensive preventative maintenance programs, we guarantee optimized system performance, energy savings, and extended equipment lifespan. Our mission is to provide peace of mind through reliable, personalized service that prioritizes client comfort and long-term trust.
Services
Residential HVAC Commercial HVAC HVAC Maintenance Heat Pump Installation Air Purifiers
Highlights and features
  • We prioritize preserving existing HVAC units to save clients money.
  • Our team offers 24/7 emergency service for urgent heating and cooling needs.
  • EPA and HVAC-certified technicians ensure industry-leading expertise and compliance.
  • Transparent diagnostics and written estimates guarantee no hidden costs.
  • Comprehensive preventative maintenance extends system lifespan and efficiency.
Associations and certifications
  • EPA
What people say
Reliable service Fair pricing Prompt emergency response Expert technicians Energy savings
Services
Residential HVAC
Mullen Heating and Air Conditioning provides tailored HVAC solutions for residential properties, including installation, repair, and maintenance of furnaces, air conditioners, and heat pumps. Our services ensure optimal indoor comfort, energy efficiency, and system longevity. We specialize in diagnosing and resolving issues with existing systems to avoid costly replacements.
Commercial HVAC
Our commercial HVAC services focus on maintaining efficient climate control for businesses, minimizing downtime and energy costs. We offer system upgrades, ventilation maintenance, and emergency repairs tailored to large-scale operations. Properly maintained systems enhance workplace productivity and reduce utility bills by up to 60%.
HVAC Maintenance
Preventative maintenance plans extend equipment lifespan and ensure peak efficiency. Our technicians perform thorough inspections, ductwork checks, refrigerant pressure tests, and thermostat calibrations. Regular maintenance reduces energy bills, prevents breakdowns, and maintains air quality in both residential and commercial settings.
Heat Pump Installation
We install high-efficiency heat pumps that provide year-round heating and cooling while reducing energy costs by up to 35%. Our systems are optimized for Pittsburgh's climate, ensuring reliable performance. Heat pumps integrate seamlessly with existing ductwork or function as ductless solutions for targeted comfort.
Air Purifiers
UVC air purifiers eliminate allergens, bacteria, and pollutants from HVAC systems, improving indoor air quality. Ideal for homes and offices, these systems reduce health risks and enhance comfort. Our technicians ensure proper installation and integration with existing ventilation infrastructure.
People
John Mullen
Owner
John Mullen has over 20 years of experience in HVAC services, specializing in residential and commercial system optimization. He prioritizes cost-effective solutions, 24/7 emergency support, and client education to ensure long-term satisfaction.
Questions
What HVAC services do you offer?
We provide installation, repair, maintenance, and air purification for residential and commercial HVAC systems, including heat pumps and emergency services.
Do you offer 24/7 emergency service?
Yes, we provide 24/7 emergency HVAC repair to address urgent heating and cooling needs in Pittsburgh.
Are financing options available?
Yes, we partner with lenders to offer financing for HVAC installations and major repairs.
What areas do you serve?
We serve residential and commercial clients throughout the Pittsburgh area.
Are your technicians certified?
Yes, our team includes EPA and HVAC-certified technicians for industry-standard expertise.