- 6175841809
- hersratingcompany@gmail.com
- 12 Pond St Ashland, MA 01721 United States
- 573 Washington St Quincy, MA 02169 United States
Certified Duct Blaster Testing for New Construction, HERS Ratings & MA Stretch Code Compliance
Duct leakage testing measures how much air escapes from a forced-air HVAC duct system. The test measures total duct leakage and leakage to outdoors in CFM25. MA Stretch Code limits total duct leakage to 4% of system airflow. Sealing leaky ducts can reduce HVAC energy use by 20–30%.
RESNET-certified duct leakage testing for new construction, Mass Save programs, HERS Ratings, and MA Stretch Code compliance. We measure and certify duct system tightness statewide.
With hundreds of certified projects statewide, we offer unmatched expertise, fast turnaround, and full compliance support for builders, developers, and homeowners.
Required for all new residential construction with forced-air HVAC under MA Stretch Code and IECC 2021. We perform total and leakage-to-outside tests.
Required for Mass Save HVAC and duct sealing rebates. Our certified reports are accepted by all Mass Save program administrators.
Required component of every HERS Rating for homes with forced-air systems. We perform both simultaneously to minimize cost.
We identify specific problem areas in your duct system — helping your HVAC contractor target sealing work precisely.
Pre-drywall duct tests verify sealing before insulation and drywall are installed, allowing corrections while still accessible.
Sealing leaky ducts can reduce HVAC energy consumption by 20–30% and significantly improve comfort throughout the home.
A clear four-step process designed to keep your project on schedule and on budget.
Transparent quote with no surprises. Package pricing available when combined with HERS Rating and blower door testing.
We schedule your duct blaster test at a convenient time — including pre-drywall tests if needed.
Our certified technician connects the duct blaster fan, pressurizes the ducts, and records total leakage and leakage-to-outside.
Certified duct leakage report delivered within 24 hours — ready for permits, Mass Save applications, and HERS Rating.
We offer all services required for new construction compliance in Massachusetts — schedule them together for maximum savings.
Duct leakage testing is included in our full compliance packages: Single-family homes $1,850–$2,500 · Multifamily (per unit) $650–$1,200 · ADUs $1,600–$1,850. Contact us for a free quote — package pricing available with blower door testing and HERS Rating.
Under MA Stretch Code, total duct leakage must be 4% or less of system airflow. IECC 2021 base code allows up to 8%. Leakage-to-outside must be 4 CFM25 per 100 sq ft under both codes.
The on-site duct blaster test takes 1–2 hours. We deliver your certified report within 24 hours.
Yes. Required for new residential construction with forced-air HVAC under MA Stretch Code and IECC 2021 base code, and as a component of every HERS Rating.
Total leakage includes all air escaping from the duct system. Leakage-to-outside only measures air escaping to unconditioned areas like attics — which is more wasteful. Both are required.
Yes — and we recommend it. Combining both tests minimizes mobilization costs and can be combined with a complete HERS Rating for the best package price.
Find your city below for a location-specific service page with local information.
Contact HERS Rating Company for a free, no-obligation quote. Fast, accurate, RESNET-certified results across all 351 Massachusetts cities.
At HERS Rating Company, we are committed to providing the highest quality energy consulting services to homebuilders, architects, and developers across Massachusetts.
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12 Pond St Ashland, MA 01721 United States
573 Washington St Quincy, MA 02169 United States
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