To maximize the comfort and energy efficiency of your home, taking a "whole home" approach is essential. This means understanding the interactions between you, your home, and the things in your home that use energy. As home performance experts, we can see the complex ways your home functions as a complete system and can accurately identify the most effective upgrades to improve your home’s comfort and efficiency.

Having an extensive whole home diagnostic assessment performed is important in identifying the source of any inefficiencies. For example, understanding the way your heating and cooling systems work with your doors, windows and exterior walls will help pinpoint the source of any drafts without doing expensive and unnecessary installations and services.

During our Whole House Diagnostic appointments, our expert building analyst will visit your home and using advanced diagnostic testing procedures; they will identify problems that affect your Iowa home’s indoor air quality and efficiency. We will provide you with a report of the diagnostic results and a personalized recommendation plan of the most effective actions to take that works for your home’s needs and your family’s budget.

We offer a variety of whole-home diagnostic services:

Talk to our building analyst about your home and schedule a diagnostic appointment by calling

(319) 244-8564


Keep your family healthy by keeping your home healthy and safe

Call or Email for a FREE Consultation

(319) 244-8564

Schedule Service


Leading Expert, Rob Novak

The best solutions, tailored to your unique home.

Contact Us


  • 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,...
    Read More
  • 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...
    Read More
  • 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...

    Read More
  • 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...

    Read More