Your Single Source for Comfort and Energy Solutions

Utility rebates are back!

Over a thousand people have already taken advantage. Will you?
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Is your home too cold?

We specialize in isolating problems and resolving them.
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Is your home healthy enough?

We can eliminate and prevent common Indoor Air Quality issues.
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Trained. Experienced. Professional.

We are the Chicago area's building performance consultants and contractors.

Intelligent Energy Solutions (IES Green) is a professional building performance consulting and contracting firm that is dedicated to delivering real solutions to improve the comfort, safety, and energy efficiency of your home.

By applying building science principles, sophisticated testing, and multi-stage inspections, IES Green provides a level of coverage and satisfaction offered by few others.

While most contractors can provide a quick fix and temporary relief, they are not looking at your complete home as a system and may not be addressing the true cause of the issue.

IES Green's experienced, trained, and certified staff will pinpoint the real problems and will then offer strategies to cost- effectively resolve your house's issues. We have over seven years of experience and thousands of homes improved in the Chicagoland area.

Probelms We Solve


Our Process

Free Estimates

We'll walkthrough, give you a quote on the spot or suggest further analysis.


Our comprehensive reports provide a granular assesment of your home's performance


Pick the enhancements you want based on our audit or assessment and we'll get to work


Once completed, we'll retest our work to ensure that we've improved your home's performance

Rebates and Savings

We complete all work with rebates and incentives in mind, making sure you get as much money back as possible.