Home Exterior


Blower Door Testing, Energy Code Compliance, and HERS Ratings.  Let us help you meet today's increasingly complex requirements for energy efficiency in your home.

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ETS President Matt Slattery has over 15 years experience in the energy efficiency building field.  As a HERS rater, trainer, home performance contractor, and building science expert, we've worked in every type of building.  We've performed blower door tests on everything from micro-apartments to the largest and most sophisticated high end homes, from 200,000 square feet high-rises to high tech Yale laboratories.  

We are a fully certified HERS Rater under RESNET, the nation governing body for HERS Raters.  Whatever your energy efficiency needs, we have the expertise and capabiliies to guide your project through the complex web of codes, programs, and certifications you need.  



Expertise. Intuition. Ingenuity.



The 2015 Internation Energy Conservation Code (IECC) went into effect in most places in October 2018.  The 2015 energy code was big leap from the 2012 and 2009 codes.  Mandatory blower door  and duct leakage tests, and new more stringent thresholds for passing.  Air Sealing and insulation inspection checklist requirements.  Manadatory mechanical ventilation.  These are just some of the more noteworthy items in the 2015 IECC.  Let us be your experts to guide you so you meet code and build a more energy efficent and healthy home.

Window Installation


304 Main Ave, #242
Norwalk CT 06851


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