ATJ's Home Improvement is a Chicago, Illinois, USA based company providing roofing, siding and general contracting services since 2003.

Attention to details, scrupulous adherence to the guidance of safety regulations and superb customer service is what sets ATJ's apart from the competition. They are a trusted partner and often a subcontractor of choice in the wide area stretching from the Illinois border with Indiana in the South, to Rockford, IL, in the West.

ATJ's logo symbol, is the three main letters of the company's name, which stand for the names of the founders, combined together. This combination forms a diamond shape, which represents strength and stability. Letter T, which also may resemble an arrow, suggests speed and precision.