How much does refrigerant leak search and recharge cost in Northeast Florida?

Typically $450 to $1,500. Depends on refrigerant type and pounds needed

How much does full 3 to 4 ton system replacement cost in Northeast Florida?

Typically $7,500 to $14,000. Permit and energy form included

What HVAC and AC repair costs in St. Johns County (2026) | 904biz

Cost guide · updated October 2026

What HVAC and AC repair costs in St. Johns County

Typical 2026 pricing from licensed HVAC contractors serving St. Augustine, Ponte Vedra, Nocatee, Julington Creek and World Golf Village. Coastal addresses and emergency calls run higher.

Job	Typical range
Diagnostic service call	$79 – $150
Seasonal tune-up (one visit)	$89 – $180
Clear condensate drain line	$125 – $250
Replace capacitor	$175 – $400
Refrigerant leak search and recharge Depends on refrigerant type and pounds needed	$450 – $1,500
Replace blower motor	$600 – $1,400
Replace evaporator coil	$1,800 – $3,500
Full 3 to 4 ton system replacement Permit and energy form included	$7,500 – $14,000

What changes the price

System size and efficiency rating (SEER2)
Refrigerant type, since older R-410A parts and gas are getting scarce and newer refrigerants cost more
Condition of the ductwork and whether the attic is accessible
Coastal location and whether coated coils or a corrosion package are included
Timing, since late May through September is peak demand

Local tips

Change filters monthly in summer and pour vinegar in the drain line to avoid the two most common service calls
Get replacement quotes in spring or fall when installers are not slammed
Ask about JEA or FPL rebates and federal tax credits for high efficiency heat pumps
Be cautious of anyone who recommends full replacement without showing you the failed part or a refrigerant pressure reading

Top-rated hvac & ac companies near you

Air Doctors Heating And Cooling Inc

5.0759 Google reviews

HVAC & AC Repair · St. Augustine

120 Cumberland Park Drive, St. Augustine

HVAC & AC Repair in St. Augustine, FL

Call now(904) 230-4645

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Ranges are estimates from local quotes and public price data; your price will vary. 904biz is not a party to any work. Local hvac & ac companies: think a number is off? Tell us.

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