Illinois Insulators

Illinois Insulators operates from its Downers Grove headquarters at 555 Rogers Street, serving the western suburbs of DuPage County including Woodridge, Lisle, and Darien as a specialized insulation contractor. With a 4.6-star rating compiled across 29 customer reviews, the company has established a steady reputation for residential attic insulation, wall batt installations, and mold remediation services. The team operates Monday through Friday from 6:45 AM to 5 PM, with Saturday availability from 7 AM to 1 PM, allowing homeowners flexible scheduling options for energy-saving upgrades.

What distinguishes this contractor is their dual focus on thermal insulation and indoor air quality remediation. The company handles blown-in fiberglass and cellulose applications for attics, alongside mold assessment and remediation services that address underlying moisture problems rather than cosmetic fixes. Their website references sound control insulation as a specialized offering, suggesting capability for interiorwall retrofits where noise reduction is a priority. This combination of thermal performance and health-related remediation addresses two common concerns for older DuPage County homes built between the 1950s and 1980s.

Reviewers consistently mention specific team members by name, providing insight into who handles your project. John appears as a crew leader guiding insulation and mold work, while Benny is referenced as the hands-on owner who participates directly in installation. Technician Liam received specific praise for accommodating a particular homeowner's detailed requests. One reviewer noted measurable temperature improvement on a second floor within two hours of attic work completion, while another highlighted that the crew arrived on time, worked cleanly, and left the home as pristine as they found it.