What Is a HERS Rating?

A Home Energy Rating System (HERS) Rating measures a home’s energy efficiency, with lower scores indicating better performance. At Air Tight Solutions, our RESNET certified inspectors provide comprehensive evaluations, analyzing factors like insulation, HVAC efficiency, air infiltration, and energy usage.

A certified HERS Rater evaluates the home’s performance in areas such as envelope, duct leakage, HVAC performance, duct distribution efficiency, and moisture control. The final HERS Index score compares the home’s projected energy use to a reference home built to 2006 IECC standards. Builders gain stronger quality control, fewer callbacks, and clear proof of efficiency for buyers.

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Timely Service

Certified Team

Multi-State Expertise

Why HERS Ratings Matter for Builders

HERS ratings are quickly becoming the bridge between code compliance and high-performance construction. With a HERS certification, builders can:

Verify energy performance beyond minimum code requirements
Identify issues early (before drywall or final inspection) through professional Residential energy efficiency testing
Hold trades accountable with measurable benchmarks
Differentiate homes in competitive markets
Unlock utility rebates and New construction energy incentives in SC and NC

This is where HERS ratings pair perfectly with the Duke Energy Residential New Construction Program.

How Air Tight Solutions Supports the Duke RNC Program

Plan Review & Energy Modeling

We evaluate plans and specifications to identify cost-effective upgrade paths and maximize incentive potential. This expertise makes us a top choice for anyone searching for an energy rater near me.

Field Inspections & Testing

Our RESNET certified inspector performs the required inspections at insulation/rough-in and final construction. These checks are essential for accurate home energy rating and ensuring top-tier results.

HERS Index & Program Verification

We complete the HERS index score assessment and verify compliance with Duke Energy program requirements, demonstrating your home’s performance with objective data.

Documentation & Submission

Once the home is verified, we submit all required documentation so you get paid—typically within 4–6 weeks, making access to New construction energy incentives in SC seamless.

Testimonials

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

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

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

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

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

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

1 year ago

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

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

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

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

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

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

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

2 years ago

Josh has done many duct tightness test for us. Goes above and beyond for his customers. I highly recommend him!

Why Choose Air Tight Solutions?

As a specialized firm, we offer a more personalized, relationship-driven approach than large national companies. We see ourselves as your long-term partners, not just another testing service. We’re committed to helping you build better homes through clear communication and expert guidance as a trusted HERS rating company.

Our team consists of certified HERS Raters with deep experience in blower door testing, duct leakage verification, and insulation inspections. We provide same-day reporting and fast turnarounds to keep your projects on schedule. Our seamless integration with Duke Energy RNC requirements ensures you never miss an opportunity for incentives. We are focused on building lasting partnerships and delivering reliable HERS certification services.

Areas We Serve

We bring consistent quality and regional expertise to builders in multiple states across the Southeast, making us a reliable partner for all your energy testing and home energy rating system needs.