Thermaseal / Lakeside Insulation

Thermaseal / Lakeside Insulation operates as an insulation contractor serving Cary, Algonquin, and the surrounding McHenry County communities in northeastern Illinois. With 16 client reviews generating a 3.5-star average rating, the company handles residential insulation projects ranging from attic spray foam applications to crawl space reinstallation, maintaining standard weekday operating hours from 8 AM to 5 PM Monday through Friday. Homeowners in the Cary area have engaged this contractor for both new construction insulation and remediation of previously installed insulation systems.

What distinguishes Thermaseal / Lakeside Insulation is its specialization in spray foam insulation applications, which several reviewers specifically cited as delivering measurable temperature improvements in their homes. The company appears to emphasize clean installation processes, with the crew noted as polite and industrious on job sites. Unlike many insulation contractors who offer broad service categories, this business focuses on core residential insulation solutions rather than expanding into adjacent trades like heating or cooling equipment.

Customer experiences reveal two distinct service approaches. Matthew K. worked with Chris and reported clear communication, fast turnaround, and immediate temperature difference after attic spray foam installation, noting multiple payment options with no mandatory credit card fees. However, Kevin G. described a significant discrepancy: arrival at 7:45 AM despite an 11:00 scheduled time, and discovering a 3% credit card surcharge only upon billing after prior payment method discussions. More severely, Michael B. detailed complete communication breakdown with contact Bill, who failed to deliver promised estimates or return calls despite multiple commitments, ultimately ceasing all response.