The HVAC repair every system needs

Restore the efficiency
oil fouling stole.

ACFlush is the one-time repair that removes the insulating oil film coating every HVAC coil — restoring heat transfer, lowering energy use, and extending equipment life. Results you can measure on the spot.

21.3%
energy reduction
22.2%
more cooling
7.8 mo
payback
Close-up of an HVAC condenser coil with copper refrigerant lines
Cross section of a copper refrigerant line showing dark oil fouling buildup
The hidden problem

Oil fouling is the cholesterol of HVAC.

In every refrigeration and air conditioning system, a small amount of compressor oil travels with the refrigerant. Over time it coats the inner walls of the coils — an invisible insulating layer that slowly suffocates performance.

Up to 7% efficiency loss in the first year alone
Cumulative losses of 30–35% over a system's life
Higher bills, more breakdowns, shorter lifespan
Read the full explainer
Why contractors choose ACFlush

A real repair. Not another add-on.

Measurable on the spot

2–8°C improvement in air-off temperature, demonstrable to the customer in real time.

One-time repair

Single application keeps efficiency restored for the rest of the system's life.

Lower energy use

Independent testing shows 20%+ kWh reductions and large drops in compressor workload.

Warranty-safe

Protected under federal law. We carry product liability insurance for added confidence.

Proven in the field

Simon Property Group, Great Mall

Across seven 35-ton commercial RTUs at Simon Property Group's Great Mall in Milpitas, CA, ACFlush delivered substantial measured savings using IPMVP protocols.

Avg kW/ton
1.23-21%
from 1.56
Avg SEER
11.18+33%
from 8.43
5-year ROI
667%
Payback
7.8 mo
Read the full case study
HVAC technician servicing an outdoor air conditioning unit

Bring ACFlush to your service truck.

Tim Bentley and Kyle Dunn personally onboard every new partner. Talk to us about a tailored proposal with documented targets and our repurchase guarantee.