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Building Energy Experts
For the homeowner we offer services from the smallest job to the most creative. We offer extremely competitive pricing, references, and the expected courtesy of returning your calls quickly.

Duct Systems Testing

Illinois is now one of the 29 states that have passed the 2009 or 2012 International Energy Conservation Code (IECC). What does this mean for Illinois residents and business owners? All duct systems outside of conditioned space must be verified for proper sealing by a pressure test.  As part of this new energy code, blower […]


Energy Assessment

A building performance analysis or energy audit for short is the first step to assess how much energy your home, business, or building consumes. The collected data is analyzed by our skilled staff to find areas to increase energy efficiency. We perform a multitude of tests which may include: Blower door depressurization Thermal imaging Inspection […]



Over half of your total energy costs come from heating and cooling your home, and almost all homes (even new ones) let too much air escape or penetrate.  It’s like turning on the AC in the car with your windows rolled down.  Air sealing solves this problem. Also, most homes have incorrectly installed or insufficient […]



Weatherization/Energy Retrofits Drafts? Uncomfortable rooms? High energy bills? Sounds like you could benefit from a home energy upgrade.  The team at Building Energy Experts has over 40 years of hands on construction experience as well as project management skills.  We also have an architect on staff. All of our upgrades and retrofit work is guaranteed […]


Led Lighting

Environmental issues aside, the move to retrofit existing lamps and bulbs with LED provides extreme cost benefits that include reducing or nearly eliminating maintenance, extending lamp life up to 100,000 hours, and reducing heat output that results in environmental cooling savings. LED (Light Emitting Diodes) is recognized for its negligible effect on the environment, and […]


Renewable Energy

There are many different alternative energy sources and we have the experience of working with them all. With many new companies hopping on the “green” bandwagon we find not all products are made the same. Let our experience help guide you to make the correct decision when selecting a renewable energy source so you will […]

air sealing

Air Sealing

Save Energy and Money Air that leaks through your home’s envelope − the outer walls, windows, doors, and other openings − wastes a lot of energy and increases your utility costs. A well-sealed envelope, coupled with the right amount of insulation, can make a real difference on your utility bills! Most homes in the United […]

door and windows

Doors and Windows

New windows and doors will make your home more energy efficient so you will save money on your energy bills every month by making sure your furnace and air conditioner aren’t running more than they have to. Doors and Windows Replacing your old windows will also make your home more comfortable, not only by regulating […]

hvac air money


Whole-home performance means using our building science knowledge and HVAC skills to find problems in interrelated components throughout the whole home.  Part of  this is making sure that all of them are operating at optimal levels.  Our Energy efficiency incentive programs focus on whole-house solutions to home performance problems. Heating, Ventilating, and Air Conditioning (HVAC) * […]


"2 thumbs up" and if I had more hands there would be more thumbs up for this company. They are professional, courteous and above all effective.

Basia Gasior, Chicago IL


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