Need a HERS Rating in Boston, MA? HERS Rating Company is a certified RESNET and Mass Save-approved HERS Rater serving Boston and Greater Boston for new construction.
What is the difference between the MA Stretch Code and the base energy code in Massachusetts? Learn which applies to your project and what extra requirements the Stretch Code adds.
Mass Save offers significant rebates for energy-efficient new construction in Massachusetts. Learn how much you can earn and how to qualify with a HERS Rating.
Massachusetts is pushing toward net zero buildings. Learn what the MA Stretch Code, BERDO, and net zero requirements mean for new construction developers in 2026.
Complete guide to duct leakage testing in Massachusetts. MA Stretch Code 2021 requires 4 CFM25 per 100 sq ft. Learn cost, process, and what to do if you fail.
Does your Massachusetts ADU need a HERS Rating? Yes — learn what the MA Stretch Code 2021 requires for accessory dwelling units and how much it costs.
What energy code applies to new construction in Massachusetts in 2026? The MA Stretch Code 2021 is the standard. Here is what builders and developers need to know.
What happens if your Massachusetts home fails a blower door test? Learn the passing threshold, common failure causes, and how to fix air leakage before your retest.
Complete guide to blower door testing in Massachusetts. Learn what the test measures, what a passing result looks like under the MA Stretch Code, and how to prepare.
HERS Ratings for multifamily buildings in Massachusetts — requirements, costs, and how to get certified under the MA Stretch Code 2021.
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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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