HVAC / Mechanical Permit in St. Johns County, Florida
Need an HVAC / mechanical permit pulled in St. Johns County? We match you with an experienced Florida permit professional who knows the St. Johns County building department and handles the entire HVAC / mechanical permit process.
Still requires a permit
Does Florida’s new $7,500 permit exemption apply to hvac / mechanical permits in St. Johns County?
No. HB 803 names mechanical work as an explicit exclusion from the $7,500 exemption, so an HVAC or mechanical permit is still required even on a small change-out.
HB 803 (Chapter 2026-63) took effect July 1, 2026 and applies statewide, including St. Johns County. To qualify, all of the following must be true:
- The property is a single-family residential property
- The total value of the work is less than $7,500, based on a written proposal or estimate from a licensed contractor
- The property is not in a flood hazard area
- The work is not electrical, plumbing, mechanical, gas, or structural work
The exemption is not self-certifying. A homeowner or contractor submits an exemption request and the building official determines whether the work qualifies. Starting work on the assumption that it does can lead to a stop-work order and an unpermitted-work disclosure when you sell.
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Getting an HVAC / Mechanical Permit in St. Johns County
St. Johns County Building Department issues HVAC / mechanical permits for St. Johns County, and applications go through Online Permitting & Status. For an HVAC / mechanical permit, you'll typically need to submit an application with project details, plans or specifications, and applicable contractor licensing. The typical timeline for this type of permit is 1-5 business days.
Who issues this permit in St. Johns County
St. Johns County Building Department
- Phone
- (904) 827-6800
- Permit counter
- 4040 Lewis Speedway, St. Augustine, FL 32084
- Hours
- Monday–Friday, 7:30 a.m.–4:30 p.m.
- bldcodes@sjcfl.us
- Apply online
- Online Permitting & Status
Verified against St. Johns County's own website on . Counties change hours, offices and portals, so confirm before you drive over.
Quick Facts
Timeline
1-5 business days
NOC Required
Typically No
Watch Out For These St. Johns County Rejections
These are the most common reasons an HVAC / mechanical permit application gets rejected. An experienced permit pro catches these before they cost you time.
- ×Missing Manual J calculation
- ×Incorrect equipment specs
- ×Energy code non-compliance
HVAC / Mechanical Permit questions, answered for St. Johns County
Does Florida's new $7,500 permit exemption mean I can skip a hvac / mechanical permit in St. Johns County?
No. HB 803 names mechanical work as an explicit exclusion from the $7,500 exemption, so an HVAC or mechanical permit is still required even on a small change-out. HB 803 (Chapter 2026-63) took effect July 1, 2026 and applies statewide, including St. Johns County. Where it does apply, it is not automatic: the building official reviews an exemption request and decides.
Who issues an HVAC / mechanical permit in St. Johns County, Florida?
St. Johns County Building Department issues HVAC / mechanical permits for St. Johns County. You can reach the office at (904) 827-6800. Applications are submitted online through Online Permitting & Status. The permit counter is at 4040 Lewis Speedway, St. Augustine, FL 32084. Counter hours are Monday–Friday, 7:30 a.m.–4:30 p.m..
How long does an HVAC / mechanical permit take in St. Johns County?
HVAC / Mechanical Permit approval in St. Johns County typically takes 1-5 business days. That clock starts when the application is accepted as complete, not when it is first submitted, which is why an application that comes back for corrections can add a week or more to the total.
How much does an HVAC / mechanical permit cost in St. Johns County?
HVAC / Mechanical Permit fees in St. Johns County generally fall in the $100-300 range. Florida counties set their own fee schedules and most calculate them from the declared job valuation, so the final figure depends on the size of your project. Expect separate charges for plan review and for each inspection.
Do I need a Notice of Commencement for an HVAC / mechanical permit in St. Johns County?
Usually not. HVAC / Mechanical Permit work in St. Johns County is normally below the job value that triggers Florida's Notice of Commencement requirement. If your project grows or is bundled into a larger job, the NOC requirement can still apply, so confirm the threshold before work starts.
Can I pull an HVAC / mechanical permit myself as the homeowner in St. Johns County?
Often yes. Florida's owner-builder exemption, in section 489.103(7) of the Florida Statutes, lets an owner pull a permit for work on a home they own, subject to conditions the statute attaches, including appearing in person to sign a disclosure statement acknowledging that you take on the responsibilities of a licensed contractor. St. Johns County can confirm what it requires at (904) 827-6800.
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