Why Choose PHD?
Heating combo systems require regular maintenance to stay efficient, safe, and reliable during the winter season. PHD Heating & Cooling provides thorough, precise maintenance for all combo unit brands, performed by a licensed and insured HVAC team trained to follow high technical standards.
We maintain:
Carrier, Bryant, Lennox, Trane, Goodman, American Standard, Amana, Rheem, Ruud, York, Heil, Payne, Comfortmaker, Coleman, etc.
Our maintenance includes:
• heating cycle testing
• blower inspection & lubrication
• burner & ignition check
• heat exchanger inspection
• electrical and safety testing
• airflow measurement
• refrigerant balance verification (for heat pump/dual systems)
• filter replacement
• thermostat calibration
• full system tuning for efficiency
While large companies often perform quick, low-value tune-ups, our team takes the opposite approach —
slow, methodical, and detail-driven.
This ensures long equipment life, fewer breakdowns, and consistent winter comfort.
We serve Chicago (West Loop, Lincoln Park, Wicker Park, Lakeview) and suburbs (Elmhurst, Northbrook, Wilmette, Palatine).
Why Choose Our Combo Unit Maintenance?
• Licensed & Insured HVAC maintenance professionals
• Maintenance for all combo unit brands
• Improved heating efficiency & airflow
• Lower utility costs
• Extended system lifespan
• Priority Same-Day Scheduling Available
• Small team = consistent, reliable quality
Keep your heating system running safely and efficiently.
Book your maintenance appointment today.
Our Latest Installations
Keep your full system running at its best.
One visit covers your Furnace for maximum efficiency.
Extend system life with professional combined maintenance.