Business Details
42 Years
experience
Emergency
services
Trusted HVAC Services in Bethel Park, PA
Denillo Heating & Cooling has been a trusted provider of HVAC services in the Pittsburgh area for over four decades. Founded by Guy Denillo, whose reputation for quality and integrity earned him the nickname 'The Only Guy To Call,' the company continues under the leadership of his son, Nick Denillo. Specializing in residential and commercial HVAC solutions, the business partners with leading manufacturers like Trane and Mitsubishi to deliver reliable equipment and expert service.With a focus on integrity, honesty, and accountability, the team provides 24/7 emergency support, preventive maintenance, and energy-efficient upgrades. Their commitment to customer satisfaction is reflected in their decades-long relationships with communities in Bethel Park, Upper St. Clair, and surrounding areas. Certified technicians ensure every installation, repair, and maintenance job meets the highest standards of performance and safety.
Services
AC Repair
Furnace Installation
Heat Pump Services
HVAC Maintenance
Ductless Mini-Split
Indoor Air Quality
Commercial HVAC
Boiler Repair
Emergency Services
Thermostat Installation
Details
- Year established: 1984
Highlights and features
- 40+ years serving Pittsburgh with HVAC expertise
- 24/7 emergency repair services available
- Certified technicians for Trane and Mitsubishi systems
- Free in-home estimates for new installations
- Preventive maintenance agreements with priority service
Associations and certifications
- Trane Comfort Specialist
- Mitsubishi Diamond Dealer
What people say
Quick response time
Professional technicians
Competitive pricing
No sales pressure
24/7 availability
Services
AC Repair
Our certified technicians provide prompt AC repair services for all makes and models in Pittsburgh. We diagnose issues like refrigerant leaks, compressor failures, and thermostat problems to restore cooling efficiency. Emergency repairs available 24/7 with upfront pricing and same-day service.
Furnace Installation
We install high-efficiency furnaces from Trane and Mitsubishi with proper sizing calculations for optimal performance. Our team ensures safe gas line connections, venting, and system integration with existing ductwork. Includes manufacturer warranty and one-year labor guarantee.
Heat Pump Services
Full-service heat pump solutions including installation, repair, and seasonal maintenance. We service both ducted and ductless systems with advanced diagnostics for reversing valve issues, refrigerant imbalances, and defrost cycle problems in cold climates.
HVAC Maintenance
Preventive maintenance agreements include bi-annual inspections of electrical components, lubrication of moving parts, filter replacement, and efficiency testing. Our Silver and Gold plans extend equipment lifespan and improve energy efficiency by up to 30%.
Commercial HVAC
Tailored HVAC solutions for commercial properties including rooftop unit maintenance, VRF system installation, and indoor air quality improvements. Emergency repair services minimize downtime with flat-rate pricing and priority scheduling for business clients.
People
Guy Denillo
Founder
Founded the company in 1984 with a focus on quality service and customer relationships. Built the business on principles of integrity and accountability that continue today.
Nick Denillo
Owner
Second-generation leader with 20+ years in HVAC management. Oversees daily operations while maintaining hands-on involvement in complex service calls and installations.
Questions
Do you offer 24/7 emergency HVAC service?
Yes, we provide 24/7 emergency repair services for heating and cooling systems with technicians available within 2 hours of contact.
What HVAC brands do you service?
We service all major brands including Trane, Mitsubishi, Weil Mclain, Utica, and Daikin for both residential and commercial systems.
Are financing options available?
Yes, we offer financing through approved partners for HVAC system replacements and major upgrades with flexible payment terms.
Do you provide free estimates?
We offer free in-home estimates for new HVAC installations with detailed equipment and pricing options.
What areas do you service?
We serve Pittsburgh and surrounding communities including Bethel Park, Upper St. Clair, South Park, and Venetia, PA.
Are maintenance agreements worth it?
Our maintenance plans extend equipment life by 20-25% while reducing repair costs through early issue detection and system optimization.
