Indoor Environmental Systems

  • 30 Years in Business

About Indoor Environmental Systems

Indoor Environmental Systems, Inc. (IES) is a local family owned company. We are located in Cary, North Carolina and have been in business since 1992. Our building science services and products enhance your health, comfort, energy savings, and self-sufficiency. We see great value in making homes greener: a 'green home' is about saving a buck, saving a tree, and saving humanity by conserving energy, improving air quality, comfort, durability, and value in your home. It's a smart investment to make your home tight, ventilated, & insulated right!




8:00AM – 5:00PM
8:00AM – 5:00PM
8:00AM – 5:00PM
8:00AM – 5:00PM
8:00AM – 5:00PM

Promotions offered by Indoor Environmental Systems

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Homeowner Reviews for Indoor Environmental Systems

5 reviews
Review by Ken L
August 12, 2019
We had IES seal our crawl space. Everyone we dealt during the process was extremely professional and knowledgeable. The home inspector, Dan, spent two hours with us thoroughly reviewing his assessment findings, explaining our options and answering our questions. Stephanie, the project manager, kept us informed throughout the process, promptly addressed our questions and ensured everything was done according to the plan and schedule they had developed. The project leader, Miguel and his team, were prompt, courteous and very thorough. This was one of the most expertly managed and efficient home improvement projects we have undertaken. We are very pleased with the results and highly recommend IES.
Review by Steve M
May 2, 2019
My business since 1992 continuing to provide an excellent service because I have a great crew and we know what we’re doing. Recently had solar panels installed on our healthy home feels great being part of the solution to pollution and helping people to improve their indoor air quality
Review by Joe G
December 17, 2018
This organization is extremely impressive. They analyze the situation carefully, present a thoughtful solution and implement the plan efficiently and effectively. They bend over backwards to meet special requests. We were quite demanding and they responded professionally. We highly recommend these folks.
Review by William G
January 13, 2018
Large job. Crew worked well through a full week, was very efficient, and Job was completed on time. So far, we are very pleased with the results. We are looking forward to our home being more clean, energy efficient, and mold free. Have not needed to use our dehumidifier so far and that is a good sign.
Review by Staci W
July 23, 2017
Indoor Environmental Systems is an amazing local company. They're very professional, knowledgeable, and friendly. The crew that installed my attic and crawl space insulation went above and beyond. They were respectful, arrived on time, and worked hard to complete the job. And I felt a big difference in my house after they finished.

Indoor Environmental Systems should be your first and only choice!
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