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Southern Independent Testing Agency HVAC & Building Performance Specialists
Test & Balance | Commissioning | Blower Door Testing
Improving comfort & energy efficiency

10/16/2026

Testing and balancing. It gets cut from budgets, pushed to the last week, or skipped entirely because the system appears to be working. 🔧

Appears to be working is not the same as verified to perform.

Without TAB, there is no documentation that airflow matches design, that zones are receiving what they were specified to receive, or that the system will hold up under real occupancy loads. The building looks done. It just was not proven.

When the owner moves in and comfort complaints start, the GC is gone and the mechanical contractor has moved on. The cost of fixing an unbalanced system after occupancy is always higher than the cost of testing it before handover.

TAB is not the last thing on the list. It is the thing that proves everything else on the list was done right.

Reach out at [email protected] or call 813.949.1999.

Florida's energy code enforcement has tightened, and that changes your project timeline and budget. TAB used to happen a...
10/15/2026

Florida's energy code enforcement has tightened, and that changes your project timeline and budget.

TAB used to happen at the end.

Now it needs to be part of the plan from day one.

We've helped hundreds of GCs and mechanical contractors navigate this before it costs them a permit delay.

Want clarity before your next project starts?

10/14/2026

Most buildings get installed. Not all of them get verified. 🔧

Commissioning is the step that closes that gap. Every control sequence, damper, and sensor gets checked against what the design actually intended, not just whether the system turns on, but whether it performs the way the building owner was promised.

TAB is our specialty within that process. We focus on HVAC testing and balancing so every zone receives exactly what it was designed to deliver.

We hold both certifications. Both matter on your project.

Ready to verify your next build? Reach out at [email protected] or call 813.949.1999.

Forty-five years and 15,000+ projects teach you that the fundamentals don't change: test it, balance it, verify it, docu...
10/13/2026

Forty-five years and 15,000+ projects teach you that the fundamentals don't change: test it, balance it, verify it, document it.

Buildings that follow that sequence perform.

The ones that skip it don't. We've seen both.

If your next project needs a partner who's seen every problem and solved it, let's talk.

10/12/2026

Construction Safety Week reminder. TAB is not just about comfort. In the right buildings, it is about safety. 🏥

In healthcare facilities, pharmaceutical manufacturing, and clean rooms, unbalanced HVAC systems put people at risk. Air changes per hour, pressure differentials, isolation room requirements, none of those are suggestions. They are requirements that exist to protect occupants, patients, and workers.

Third-party commissioning and TAB exist to verify those requirements are actually met. Not assumed. Not signed off on because the contractor said it looked right. Measured, documented, and proven.

If your project has life-safety ventilation requirements, this step is non-negotiable. The consequences of getting it wrong go well beyond a comfort complaint.

Working on a healthcare or critical-environment project? Reach out at [email protected] or call 813.949.1999.

10/09/2026

Here is something most contractors do not account for. Air density shifts with temperature, humidity, and altitude. 🌡️

On a hot Florida afternoon, the air in your ducts is measurably less dense than on a cool morning. That means CFM readings can be off by 10 to 15 percent depending on when you test and whether anyone corrected for real field conditions.

Density correction factors exist for exactly this reason. They translate raw instrument readings into accurate numbers that reflect what is actually happening in the building at the time of testing.

This is what independent TAB actually catches. Real-time field conditions, not lab assumptions.

When the numbers determine occupant comfort, energy performance, and code compliance, precision is not optional.

Want to know if your readings were taken correctly? Reach out at [email protected] or call 813.949.1999.

Most building owners check one thing: "Is the heat/AC on?"HVAC performance is a system, and these are the metrics that a...
10/08/2026

Most building owners check one thing: "Is the heat/AC on?"

HVAC performance is a system, and these are the metrics that actually tell you whether it's working.

Testing, Adjusting, and Balancing measures all of it the difference between a building that runs and one that performs.

Ready to verify your system?

10/07/2026

TAB in the field is not guesswork. It is measurement. 🔧

Real readings at every zone. Adjustments until the building performs as designed. That is what NEBB and AABC certification standards actually require in the field, not just on paper.

One misread reading can cascade through an entire floor. Wrong CFM in one zone throws off pressure relationships, return air paths, and comfort in spaces that were never even touched.

This is why independent third-party TAB exists. Not to rubber-stamp the contractor's work. To verify it.

Want to know your building was done right? Reach out at [email protected] or call 813.949.1999.

10/07/2026

Some rooms stay hot. Others stay cold. It is not your thermostat. The problem is almost always hidden in your ductwork. 🔧

Here are five signs your system needs balancing before it becomes your tenant's first impression:

1. Zones consistently off from design specs.
2. Repeat comfort complaints in the same areas.
3. Return grilles behaving inconsistently across the building.
4. Energy bills higher than comparable buildings.
5. System running constantly but never hitting setpoint.

If any of these sound familiar, that is Testing, Adjusting, and Balancing territory. Not optional. Not a nice-to-have.

Catching it before occupancy saves thousands in rework and comfort complaints after handover.

When is your next project opening? Reach out before an unbalanced system becomes your tenant's first impression. Contact us at [email protected] or call 813.949.1999.

10/02/2026

Yes, it matters. And it has delayed more closeouts than most GCs realize. 📋

NEBB and AABC are the two leading certifying bodies for test and balance firms in North America. Both set rigorous standards for how testing is performed, documented, and reported. But a project specification will often require one specifically, not both.

If your spec says NEBB and the TAB firm only holds AABC certification, the engineer of record can legally reject the report and require the testing to be redone by a NEBB-certified firm. Same in reverse. It is not a quality issue. It is a spec compliance issue.

This is one of the most common reasons for rejected submittals and delayed closeouts. The work gets done, the report comes back, and the engineer says it does not meet the spec. Do it again.

Check the specification before you scope the TAB work. Confirm the firm holds the certification your project requires.

Holding both certifications means the spec question never becomes a problem. Whichever standard your project requires, the report comes back valid the first time.

Questions about certification requirements on your next project? Reach out at [email protected] or call 813.949.1999.

Address

140 Whitaker Road Suite A
Lutz, FL
33549

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm

Telephone

+18139491999

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