Multifamily Code Testing in the Southeast | Air Tight Solutions
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Multifamily Energy Code Compliance Testing

High-volume multifamily projects don’t slow down for testing delays. At Air Tight Solutions, we built our process to move with your production schedule, not against it. From blower door testing and duct leakage measurements to exhaust fan CFM verification and insulation inspections, our multifamily energy code compliance testing covers every required touchpoint. We deliver documentation your Authority Having Jurisdiction will accept on the first submission.

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Protocol Fluent

Dependably Accurate

Documentation Ready

Comprehensive Testing Coverage Across IECC Versions

Multifamily blower door testing per IECC requirements from 2009 through 2021 is what we do. Each dwelling unit is tested and results reported in ACH50. We also handle multifamily duct leakage testing with a specific focus on leakage-to-outside measurements, which matter most when ducts run through unconditioned attics and crawlspaces. In the Southeast, that setup is one of the most common energy efficiency failure points on multifamily projects, and we know exactly where to look.

ASHRAE 62.2 Exhaust Fan CFM Verification For Buildings

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Exhaust fan CFM testing against ASHRAE 62.2 requirements is part of every complete multifamily compliance package we deliver. We measure airflow at bathrooms, kitchens, and common areas against design specs and document results in a format that satisfies your AHJ. Building performance starts with verified ventilation, and we make sure your project has it on record.

Pre-Drywall Inspections That Prevent Costly Retests

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IECC compliance testing for multifamily doesn’t have to mean surprises at closeout. We offer insulation and air-sealing inspections before drywall goes up, when deficiencies are cheap and fast to fix. Catching code requirements issues early keeps your production schedule intact and reduces the chance of a failed final inspection. Early detection is one of the most practical ways to protect your timeline and budget.

Infrared Imaging and Large-Volume Testing Capability

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We carry thermal imaging capability as a diagnostic add-on for units or building sections where visual inspection isn’t enough. For large developments, we structure testing sequences to align with your unit delivery schedule, keeping apartment energy code testing moving at scale without creating bottlenecks. Documentation is formatted for AHJ submission from the start, so your team isn’t reformatting reports at closeout.

Testimonials

Leo Jansen profile picture
Leo Jansen
7 months ago
I had the pleasure of observing Josh, Robert and Daniel recently during a Field QA trip, and was blown away by their process-oriented and quality-focused approach towards servicing their clients. Air Tight Solutions has a bright future ahead of them, and any builder or homeowner looking for a HERS Rating Company in their service area should look no further!
Jason O'Neal profile picture
Jason O'Neal
7 months ago
Fast response and professional service. Awesome company, very dependable. As a builder I’m always looking for top notch subcontractors and Josh and his team are exactly that!
Cameron Howard profile picture
Cameron Howard
7 months ago
I had a great experience with Airtight Solutions for my home energy inspection. Their team was extremely knowledgeable and professional from start to finish. They performed a blower door test, duct leakage testing, and a full HERS rating, and took the time to clearly explain what everything meant for my home’s efficiency. If you’re building a new home or need energy code compliance testing, I highly recommend Airtight Solutions. They understand building science, insulation, air sealing, and HVAC performance better than anyone I’ve worked with in the Upstate SC area. The report was detailed, accurate, and delivered quickly. Top choice for home energy audits, RESNET HERS ratings, and blower door testing in South Carolina.
Mark Thoennes profile picture
Mark Thoennes
8 months ago
Josh O’Neal with Air Tight Solutions is top-notch. We use Josh for duct blast and blower door testing on our projects at Mark Thoennes Builders, and he’s consistently fast, professional, and easy to work with. He shows up when he says he will, communicates clearly, and delivers accurate results without slowing down the job. His process is efficient, his reports are prompt, and he keeps things straightforward for our team and inspectors. If you’re a builder or homeowner needing blower door or duct blast testing done right (and done quickly), I highly recommend Josh and Air Tight Solutions.
Haley Michael profile picture
Haley Michael
9 months ago
Highly professional and very helpful when determining the appropriate HVAC size/information needed for a new construction build. Josh was very knowledgeable and super responsive.
Kyle Pcheny profile picture
Kyle Pcheny
1 year ago
Josh always does a great job. He is always able to get to you in a timely manner. Will continue using him and recommend to all homeowners, investors or builders.
Nathan Arrowood profile picture
Nathan Arrowood
1 year ago
Brady Brannon profile picture
Brady Brannon
1 year ago
There is no one better to hire for your code compliance testing than Air Tight Solutions. From initial contact to completion of the job you will experience a true customer focused process while also learning something you did not know before. Their focus to better equip you for long term sustainability really sets them apart. If I built 100 houses a year I would call Air Tight Solutions for all 100.
Matthew Mullins profile picture
Matthew Mullins
1 year ago
I recently did a full renovation on one of my homes, as I called in for my final inspection, I was informed that the required blower test was overlooked! We were already behind schedule so this is the last thing we needed! I called Air Tight Solutions and they were able to work us into the schedule before the next inspection date. It was a big save! Josh and his team did a great job from start to finish. I highly recommend them for your compliance testing needs.
Kyle Belcher profile picture
Kyle Belcher
1 year ago
Called Josh after finding Air Tight Solutions via a Google search to help with an issue I was having getting a permit. My issue was not in their typical scope but he adapted to find a solution within 48 hours. Pricing was extremely reasonable and while many companies just say “no I can’t do that”, he chose to find a solution. Highly recommend! -Local Residential Builder
Clifton Budney profile picture
Clifton Budney
1 year ago
Josh, with Air Tight Solutions has greatly helped my company with fast turn times to make it easier on me and my company. Would recommend to anyone needing their services.
C Wilson profile picture
C Wilson
1 year ago
Josh is great to work with. We've used his services for a couple years for duct blast tests and have now started using him for load calculations. Always professional and timely with his work. Highly recommend!!
Leonard Vickery profile picture
Leonard Vickery
2 years ago
Josh was very professional, friendly and accommodating. I needed his services quickly and he performed the test the very next day. He was a pleasure to deal with. I would highly recommend Air Tight Solutions.
Zachary Walsh profile picture
Zachary Walsh
2 years ago
I called Josh with Air Tight Solutions after discovering I needed a Duct Leakage Test certificate for a final inspection. I was in a bind and after calling dozens of companies trying to find someone who can help, I was referred to Air Tight Solutions. He was able to provide service very promptly, he was very professional, and is now my go to contact for all new builds. Highly recommend.
Colt Byars profile picture
Colt Byars
2 years ago
Josh has done many duct tightness test for us. Goes above and beyond for his customers. I highly recommend him!

About Us

Air Tight Solutions was built from firsthand experience in residential construction. While working closely on new home builds, we saw the same problem recur: builders and contractors were losing time and money navigating ever-changing energy code compliance requirements.

We saw a better path. With precision as our foundation and a genuine commitment to doing the work right, we expanded our expertise into energy-efficiency testing and compliance, focusing exclusively on new construction projects where the stakes are highest.

Our scope also includes affordable housing developments, where we believe energy-efficient construction should be available to every community. We partner with builders to deliver high-quality, code-compliant results that stand the test of time.

Today, Air Tight Solutions is a trusted partner for builders, developers, and GCs across the Southeast who need reliable testing, clean documentation, and a team that keeps pace with their schedule.

Energy testing services

Areas We Serve

Don’t wait until closeout to find out where your units stand. We also offer our services across South Carolina, North Carolina and Georgia. Contact Air Tight Solutions today to schedule multifamily energy code compliance testing and get documentation your AHJ will accept the first time.

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