HVAC Coil & Blower Cleaning in St. Augustine, FL

Your evaporator coil and blower wheel are the heart of your HVAC system — and the dirtiest. A 1/8" layer of dust on the coil can cut efficiency by 20% and force the system to run 30% longer to hit the thermostat. We clean both, restore proper airflow, and most homes see a measurable drop in AC runtime within a week.

Bastion Duct Solutions provides air duct and dryer vent cleaning to homeowners across St. Augustine and all of St. Johns County — from historic downtown and Lincolnville to Nocatee, SilverLeaf, World Golf Village, Ponte Vedra, and St. Augustine Beach. Coastal salt air, 75%+ summer humidity, and constant AC runtime turn dust into a sticky biofilm inside St. Augustine ductwork in as little as 18 months. We use truck-mounted negative-air HEPA vacuums and NADCA-style agitation on every job, with optional EPA-registered antimicrobial fog treatment to kill mold spores left behind by Florida humidity.

Why St. Augustine homes need this service

• Salt-air corrosion and mold in St. Augustine Beach and Vilano Beach coastal homes
• Original ductwork in historic downtown St. Augustine and Lincolnville homes
• Post-construction drywall dust in Nocatee, SilverLeaf, and World Golf Village new builds
• Multi-zone HVAC systems in Ponte Vedra Beach and Sawgrass estate homes

What's included

• Restores HVAC efficiency — most systems see 15–25% runtime reduction
• Lowers monthly electric bills, especially during Florida summer months
• Extends compressor life by reducing strain on the system
• Improves cooling performance in hot or humid rooms
• Catches potential issues (leaks, rust, fan damage) before they become repairs

Our process in St. Augustine

1. Power Down & Access: Safely cut power to the air handler and open the access panel without damaging the cabinet.
2. Inspect Coil & Blower: Photo-document the condition of the evaporator coil and blower wheel before any cleaning.
3. Clean Evaporator Coil: No-rinse coil cleaner removes biofilm and dust without damaging the fins.
4. Clean Blower Wheel: Remove the blower wheel, wash, and reinstall — this is where the dirtiest buildup lives.
5. Reassemble & Test: Reseal the access panel, restore power, and verify proper airflow and temperature drop.

HVAC Coil & Blower Cleaning FAQs — St. Augustine

Is this the same as an HVAC tune-up?

No — a tune-up is a check by an HVAC technician. We clean. We're the right call when your system is running but inefficient; call an HVAC tech for refrigerant, electrical, or mechanical repairs.

Will this fix a frozen AC line?

Sometimes — a dirty coil is one of the top causes of frozen evaporator lines. If freezing persists after cleaning, you likely have a refrigerant or airflow problem that needs an HVAC tech.

Should I do this with my duct cleaning?

Yes — bundling saves a service-call charge and the coil/blower are inside the same system we're cleaning anyway.

How long does it take?

1–2 hours for most residential systems. Larger multi-zone systems take longer.