PhD Heating & Cooling

PhD Heating & Cooling has earned a 4.9-star average across 68 client reviews while serving Chicago and the surrounding suburbs as a fully licensed and insured contracting team. Founded by Dmytro, who holds a PhD in Technical Sciences from Ukraine, the company brings academic rigor to every residential installation and repair. This credential is not cosmetic, it shapes how the team approaches system sizing, equipment selection, and engineering-level workmanship on every job, from new furnace installations to .

The Premium Installation Standard defines PhD Heating & Cooling's difference. Rather than treating HVAC installation as a routine tradeservice, the team applies methodical engineering principles: proper system sizing for each home's square footage and insulation profile, trusted equipment brands selected for long-term reliability, and configuration standards that prioritize safe operation and lasting performance. Their website explicitly references Carrier systems, and technicians follow detailed processes rather than rushing through jobs. This is not a slogan, it is a documented approach to every project.

Customer stories reveal why reviews average five stars. When Tony Rosinia's furnace failed on a Friday night with sub-zero temperatures forecast, the team arrived within an hour while other contractors delayed until the following week. Similarly, a complex boiler repair that multiple companies refused, requiring diagnosis and persistence through extreme cold, was completed in a single day at a reasonable price. Technician Dmytro personally guided one homeowner through Carrier system selection, explaining model differences and ensuring proper installation that protected flooring and included thorough cleanup.