Professional HVAC Repair in Sterling, VA 20166 - Cardinal Heating & Cooling

We provide comprehensive HVAC services including installation or replacement of systems, repairs for heating and cooling units, and regular maintenance to keep your system running efficiently. Our NATE-certified technicians are trained to handle various HVAC models, ensuring reliable service for homes and businesses in Sterling and the surrounding areas.

For Sterling residents dealing with clogged air filters or thermostat problems, our technicians perform thorough inspections to identify the root cause. We clean or replace filters as needed and troubleshoot thermostat issues to restore proper temperature control. Regular maintenance can help prevent these common problems, and we offer maintenance plans to keep your system in top condition.

Founded in 1991 by Nelson Workman and his sons, our company is built on a legacy of honesty and customer respect. Owner Tod Workman, who started in the trade as a teenager, ensures every job is done with integrity, offering flat-rate pricing and free estimates. We're committed to treating Sterling customers like neighbors, with reliable service and financing options to make HVAC solutions accessible.