Blower door testing & Manual J in Ocala, FL.
Code-compliant envelope leakage testing, duct leakage testing, and Manual J/D/S energy calculations for new residential construction throughout Ocala and greater Marion County. Florida-licensed, ACCA-trained, same-week turnaround.
B&I Testing provides the energy compliance documentation Ocala builders need for every new construction permit submitted through the Marion County Building Department. That includes the Manual J load calculation, Manual S equipment selection, Manual D duct design, and Form R405-2023 for the permit submittal package — plus the blower door test and duct leakage test required before certificate of occupancy.
Ocala is the county seat and the largest residential construction market in Marion County. We work with general contractors, custom home builders, and production builders across the city — from the established neighborhoods east of downtown to the SR-200 corridor expansion west of town to the I-75 corridor builds north and south.
Most contractors in the Ocala market offering Manual J calculations or blower door testing do it as a side service to a primary HVAC or construction business. The reports get done, but priorities split — the HVAC company is focused on selling and installing systems, the contractor is focused on the next project.
B&I Testing only does residential energy testing and calculations. Every project gets the full attention of a specialist who works the 2023 Florida Building Code Energy Conservation chapter line by line, with the calibrated equipment and ACCA-format reporting Marion County permit reviewers expect.
Ocala's residential construction is genuinely diverse — equine-country horse farms on large acreage west and northwest of the city, traditional single-family subdivisions throughout the SR-200 and SW 60th Avenue corridors, custom builds in the Heath Brook and Bellechase areas, and steady production builder activity north toward Anthony and south toward Belleview. Each of those segments has different design priorities, but they all share the same Climate Zone 2 design conditions and the same Marion County code review process.
Because we're based in the Ocala area, most jobs inside the city can be scheduled for same-day or next-day testing. Manual J / D / S energy packages for production builders running multiple plans benefit from a master set approach — one comprehensive calculation set covering each base plan with elevation, orientation, and option variations, eliminating per-lot ordering.
Marion County's permit office reviews to the 2023 Florida Building Code, Energy Conservation chapter. The ACH50 ceiling that applies in Ocala (and all of Florida Climate Zone 2) is 5.0 under any compliance path, with 7 ACH50 as the prescriptive testing limit and a separate verification requirement when a unit tests below 3 ACH50.
ANSI/RESNET/ICC 380 envelope leakage testing for certificate of occupancy. Same-day report.
Rough-in or Leakage-to-Outside per FBC-EC R403.3.3. ≤4 CFM25 per 100 sq ft.
Full energy package: load calculation, equipment selection, duct design. Permit-ready.
Florida Energy Code compliance with EPL Index calculation. Performance path.
Marion County Manual J Requirements
What the Ocala permit office checks before issuing new construction permits.
Marion County Blower Door Requirements
The 5.0 ACH50 code ceiling explained, plus how the test connects to your Manual J.
Manuals & Energy Calculations in Ocala
The complete submittal package: Manual J, S, D, and Form R405-2023.
Need testing in Ocala?
Call directly for fastest scheduling, or send a message and Brandon will follow up the same day.