Coils + blowers
Coils and air handlers, cleaned back to bare metal
Evaporator and condenser coils and air handler blowers, cleaned around the building's own schedule across the Twin Cities.
Dust on a coil works like a blanket
A coil exists to trade heat with the air moving across it. When dust and grime pack into the fins, that trade stalls. The air cannot reach the metal, the metal cannot pass its heat along, and the whole system leans harder to hold the temperature you set. You see it as weak airflow, rooms that never quite settle, and an energy bill that creeps up without any change in how the building is used.
Evaporator and condenser coils fail in different ways, and the air handler around them has its own list. Blower wheels pick up a film that throws off their balance and cuts the air they push. Housings collect debris that the filters never caught. A coil that stays damp under a layer of grime can also turn into a place where mold and bacteria settle in, which is the point where a performance problem becomes an air quality problem.
None of this announces itself with a single dramatic failure. It builds over seasons, and the first real warning is often a breakdown on the hottest or coldest day of the year, when the equipment is asked for everything it has.
A large blower wheel inside a clean white air handler housing
Worked around your building's schedule
We clean coils and air handling units with industry-approved methods, and we plan the visit around how your building actually runs. Hospitals, schools, office floors and manufacturing plants cannot all shut a system down when it suits a contractor, so the work is scheduled to keep downtime short and disruption low. Overnight, early morning and weekend windows are normal for us.
The job is built on removing the dust and contaminants that have collected on the coils and inside the air handler, and restoring the unit to the condition it was meant to run in. We send people who know the equipment and bring the tools to do it properly the first time, so you are not scheduling a second visit to fix the first.
Coils and air handlers rarely live alone. They sit at the head of the same duct network we clean in commercial air duct cleaning, so if the unit has gone a long time without attention, it is worth asking about the runs it feeds as well. Not sure how your setup is arranged? Call and describe it. We would rather talk it through than guess.
What a clean unit gives back
A clean coil moves heat the way it was designed to. The system reaches temperature with less effort, which shows up as lower power use and steadier comfort from one end of the floor to the other. Occupants stop noticing the building, which is the best result a mechanical system can deliver.
The equipment benefits too. Less strain means fewer repairs and less wear on compressors and motors, and a unit that is kept clean is a unit you get more years from before replacement comes up. Mold, dust and allergens have less to cling to inside the housing, so the air leaving the unit is cleaner than the air that went in.
Metro Cleaning Service, licensed, bonded and insured, serving the Twin Cities since 1968. Call (651) 484-9799.
Where the load sits on each coil
Evaporator coil
- What lands on it
- Dust carried in with the return air, sticking to a surface that is cold and wet.
- What it does to the system
- Blocks heat transfer, weakens airflow and holds moisture where mold and bacteria can settle.
- What clean looks like
- Open fins, dry airflow across the face and a drain pan with nothing growing in it.
Condenser coil
- What lands on it
- Outdoor debris and grime drawn in with the air that carries the heat away.
- What it does to the system
- The unit cannot shed heat, so it runs longer, uses more power and takes more wear.
- What clean looks like
- Fins that pass air freely from one side of the coil to the other.
The same crew that cleans coils also works the wider building: see commercial and industrial cleaning for the exterior side, where HVAC coil cleaning sits beside pressure washing and roof work, and air duct cleaning for the runs these units feed.