About Us

Denillo Heating & Cooling 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 tradition of expert service with a personal touch continues for a new generation of Pittsburgh-area home and business owners.

At Denillo Heating & Cooling, 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, timely, on-target repairs, helpful replacement advice, and energy-efficient upgrades.

We Specialize In:

Commercial and Residential
Steam and Hot Water Boilers
Tekmar Control Systems
HVAC Control Systems
Service and repair of all makes and models
System upgrades and replacements
Proficiency in evaluating and analyzing all HVAC systems and load calculations
In-Floor Radiation
Snow Melt Systems
Heating and Air Conditioning
Rooftop installation and repairs

With experience and credentials that inspire customer confidence, Denillo Heating & Cooling is the go-to team for comfort solutions that deliver maximum performance and value. As both an independent Trane Comfort Specialist™ 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 up-front pricing, backed by certified technicians who excel in residential and light commercial installation, repair, and maintenance.

From Guy Denillo, Nick Denillo, and the rest of the Denillo team, when you need heating and cooling help, call us any time. We won’t let you down.

Honest, Reliable Repairs

Our Repair Approach: We only fix what needs fixing, adjust what needs adjusting, and replace what needs replacing.

Valuable Insights

We’re always happy to share what we know so you can make informed decisions about indoor comfort. Ask us anything.

Convenient Financing

No need to postpone your comfort. Apply for a new heating and/or new air conditioning system that soothes you and your budget.

“The Only Guy To Call®”