Since its founding in 1988, DJK Custom Homes has been a leader in energy-efficient home construction in the Chicago metro area. DJK Custom Homes is dedicated to excellent indoor air quality, building homes to the United States Environmental Protection Agency’s Indoor airPlus certification standards. Indoor airPlus requires specific products and construction practices that are designed to eliminate contaminants and pollutants in the air.

All Indoor airPlus homes are also Energy Star certified, meaning the homes were built with energy efficiency in mind. For the homeowner, this translates to fewer drafts or cold spots in the home, lower energy use and costs, and less carbon emission. Building houses to these strict EPA standards means the homes undergo rigorous inspections to ensure they meet qualifications.

An energy-efficient home is only as efficient as the people living there, so DJK also aims to educate clients on their new home’s construction, features, and appliances. During the build, on-site meetings educate customers on the construction process and materials used. When the building is completed, a walk-through ensures the new owners are familiarized with the home and have the chance to ask any questions. Even after the process is complete, new homeowners can visit DJK's “Homebuyer Tools” page for more information. To find the page, visit djkhomes.com and click "Homebuyer Tools."