Blower, Coil and Plenum Cleaning in McKinney
Blower and coil cleaning: $249 to $349
Cleaning the ducts without cleaning the air handler leaves the dirtiest part of the system untouched. The blower wheel collects a dense layer of dust that cuts airflow, the evaporator coil clogs with the same dust mixed with condensation and grows biological growth, and the drain pan under it turns into a sludge tray. Collin County systems run hard from May through September, and a coil coated in dust and biological growth is the most common reason a system cools poorly or freezes up in July.
What HVAC system cleaning includes
- Blower wheel and housing: removed or cleaned in place depending on the unit, every blade degreased and the housing vacuumed.
- Evaporator coil: cleaned with a coil-safe foaming cleaner and rinsed, fins straightened where bent.
- Drain pan and condensate line: pan cleaned, line flushed and treated so it stops backing up.
- Supply and return plenums: cleaned and sealed where joints are leaking.
- Filter rack checked for gaps that let air bypass the filter.
When you need it
- Airflow is weak at the registers even after a new filter.
- A musty smell when the system first turns on.
- The system freezes up or the drain line backs up repeatedly.
- The coil has never been cleaned and the system is more than five years old.
- Duct cleaning camera shows the blower compartment caked.
Licensing
Texas lets an unlicensed crew clean ductwork from the supply plenum to the grilles if nothing is cut, no electrical connections are changed and only grilles come off. Opening the air handler to clean the blower wheel and coil goes beyond that, so that work is done by or under a TDLR-licensed air conditioning contractor. We tell you when a problem is a repair rather than a cleaning and do not sell you one disguised as the other.
Pricing
Blower and coil cleaning in McKinney runs $249 to $349 per system, less when done with a whole-house duct cleaning. A coil fouled badly enough to need pulling gets a new number after the crew has looked at it.
Weak airflow after a fresh filter, or a musty smell at startup, points at the air handler. Call (972) 526-5865 and we will put a camera in the blower compartment in McKinney and across Collin County.