About Us

40+ Years of Industry Experience That You Can Trust

Denillo Heating & Cooling Inc. is a family story. Guy Denillo, whose focus on quality and integrity earned him "The Only Guy To Call®" status among loyal customers, founded the company four decades ago. He built his business on providing people with reliable comfort solutions and treating them with the personal attention of a good neighbor. Today, with son and owner Nick Denillo heading the company, the Denillo Heating & Cooling Inc. tradition of expert service with a personal touch continues for a new generation of Pittsburgh-area home and business owners.

At Denillo Heating & Cooling Inc., we bring comfort to our customers at every level. When problems arise or improvements are wanted, we offer a full range of products and services, including timely, on-target repairs, helpful replacement advice, and energy-efficient upgrades.

With experience and credentials that inspire customer confidence, Denillo Heating & Cooling Inc. is the go-to team for comfort solutions that deliver maximum performance and value. As both an independent Trane Comfort SpecialistTM Dealer and a Mitsubishi Preferred Diamond Dealer, we’re a leader in air conditioning and heating service and customer satisfaction. We provide reliable support, dependable products, and upfront pricing, backed by certified technicians who excel in residential and light commercial installation, repair, and maintenance. Call (412) 885-2356 for professional help from our experts today.

Based on 314 reviews

Sam Walton

2023-02-02

Really good people. Techs are sharp and know the systems. Very honest. Just great people to deal with.

Jonathan Lasko

2023-01-31

Very professional fast came in diagnosed my problem and made a solid plan

A. Fernandez

2023-01-27

Denillo sent John out same day. He got our heat back on quickly and educated me about the unit as well. John was polite and extremely knowledgeable. I didn't know much about the furnace, but he treated my- I'm sure very basic- questions with respect and care.

Patrick Wholey

2023-01-27

Look no further! Denillo HVAC is a great choice. Nick, Keith, John and the administrative staff were very professional throughout the process. They installed a high quality furnace which heats the house quietly and evenly. There are 0% interest financing options as well. Thanks Melinda and Alexandra! Highly recommended

FroG BallZ

2023-01-20

Woke up to a chilly home on MLK day 2023. Called Denillo asap. They had services available the next day. Nick arrived early and even texted to say when he will be at the house. All the work was done in moments with one part needing replaces. The service was clean and efficient with no add ons or upselling. In the end the bill was surprisingly low. Anyone in the south hills of Pittsburgh looking for a solid and reliable HVAC service, this is your stop!!!!! My carrier furnace is over 20 years old and i credit Denillo for its longevity.

Amy Jennings

2023-01-17

Our tech was both professional and efficient. He is very knowledgeable and able to explain everything in plain language. Very grateful! Highly recommend!