Rob Novak, founder and principal building analyst at Home Star Iowa, leads the way in home energy assessments and performance testing across the state.

Starting his career at the family-owned Novak Heating and Air Conditioning Inc., a flourishing HVAC business since 1934, Rob spent 15 years honing his expertise. He then established Home Star Iowa, expanding his focus to encompass whole-home systems and delivering top-tier energy evaluations for both existing and newly constructed homes in Eastern Iowa.

As nationally accredited home energy raters, Home Star Iowa employs a comprehensive, whole-house methodology to detect and rectify comfort and energy efficiency issues. If you're dealing with drafty rooms, uneven temperatures causing discomfort, or inexplicable energy bill spikes, trust Home Star Iowa to provide premier diagnostic testing services. They will accurately identify the root of your home's problems and offer tailored recommendations that suit both your property and budget.


  • RESNET certified HERS Rater and QA Designee
  • BPI certified Building Analyst
  • BPI certified Shell Professional
  • BPI certified Heating Professional
  • BPI certified AC Heat Pump Professional
  • BPI Residential Building Envelope Whole House Air Leakage Control Installer Certification (RBE-WHALCI)
  • BPI Healthy Home Evaluator (HHE)

Training with Rob:

Rob is also certified to train and certify others and Home Star Training qualifies as a BPI (Building Performance Institute) Testing Center. We are qualified to administer BPI Building Analyst Certification, Energy Auditor Certification, Heating Specialist Certification, Air Leakage Control Installer Certification (RBE-WHALCI), Air Conditioning & Heat Pump Specialist Certification & Building Envelope Professional Certification.

Leading Expert, Rob Novak

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  • Doug de Regnier
     It was recommended that I upgrade my HVAC to GEO by a heating company. I had Rob come in and check my house, he is very professional and knolagable. He ran a complete series of tests, showed me with thermo pictures and real numbers how I could insulate better, upgrade my HVAC without going to the expense of GEO and save more money. Well worth it. 
  • Joan Tucker
    An energy audit can be a pleasant and informative experience. It  was such during the one completed by Rob Novak for my house recently. In addition to many helpful suggestions to seal warm air leaks in all areas of the house, he found a problem with carbon monoxide in one place. The water heater chimney was blocked. There was a squirrel which had died inside the chimney,...
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  • Sandra Schneider

    Your services were great and more than I expected!

  • Thomas House
    The main thing we took away from the energy assessment was the confidence that comes with having guidelines for laying out a course of action. We knew we had issues with the home's envelope but weren't certain where to start. Using a combination of basic and complex technologies, Rob was patient and professional. He identified problem areas and possible solutions and presented...
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  • Chuck and Jill Monnahan

    We were extremely impressed with the energy audit that Home Star Iowa did on our home a few months ago. The knowledge he had in regards to the energy saving tips he provided was top notch. The equipment and the detail that went into the energy audit was amazing - he explained the results of the audit in detail and provided us a report that was easy to understand, not to mention all the recommendations that will save us money. If you are wanting an energy audit done on your home - there is no...

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  • Pat Shey

     As the owner of a 100 year old home, I sometimes wonder where I should start in making my home more comfortable.  Rob came in and went through all of my utility bills, measured every window, checked the efficiency of my boiler and hot water heater, did a blower door test and walked through the house with an infrared camera and showed me where I need insulation, where the air infiltration is coming from.  A day later, he gave me a very comprehensive report that showed me the steps I can take...

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