Thornton Insulation ContractorsInsulation contractor in Frankfort, IL

Thornton Insulation Contractors is ranked #4 of 66 insulation contractors in Frankfort by CR Score, with 55 out of 100 as of October 2026. The score weighs reputation, credentials, review volume, recency, availability, trade focus, proximity, claimed profile, partnered and ContractorsRanked reviews. No business can pay to change its rank.

Thornton Insulation Contractors is open Monday to Saturday. Its listed hours are Monday to Friday, 8 AM – 4:30 PM; Saturday, 9:30 AM – 3 PM. On Saturdays it is open 9:30 AM to 3 PM and closed on Sundays. Hours come from the business listing; holiday hours may differ.

Serves Frankfort and 12 towns within 25 miles: Sauk Village, Lynwood, Crete, Steger, Lansing, Chicago Heights, Glenwood, University Park, Park Forest, Calumet City, Richton Park and Homewood. The list is based on the business's location and the usual service radius for insulation. Confirm your address is covered when you call.

Thornton Insulation Contractors has a rating of 5.0 from 8 Google reviews. The CR Score adjusts the star rating for review count, so a high rating from a few reviews counts for less than the same rating from many.

Call Thornton Insulation Contractors on (708) 701-4136. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.