Illinois Insulators

What They Do

Water DamageMoldMold Testing

• Flat, Foam, or Single Ply Roofing - Install or Replace
• Natural Slate Roofing - Repair
• Traditional Tile Roofing - Repair- For Business
• Metal Roofing - Install or Replace - For Business
• Asphalt Shingle Roofing - Repair - For Business
• Metal Roofing - Repair
• Traditional Tile Roofing - Install or Replace
• Traditional Tile Roofing - Repair
• Natural Slate Roofing - Repair- For Business
• Flat, Foam or Single Ply Roofing - Repair
• Flat, Foam or Single Ply Roofing - Repair- For Business
• Asphalt Shingle Roofing - Repair
• Wood Shake or Composite Roofing - Repair
• Wood Shake or Composite Roofing - Install or Replace- For Business
• Metal Roofing - Repair - For Business
• Heating Cable for Roof - Install
• Wood Shake or Composite Roofing - Install or Replace
• Traditional Tile Roofing - Install or Replace- For Business
• Heating Cable for Roof - Install- For Business
• Metal Roofing - Install or Replace
• Flat, Foam, or Single Ply Roofing - Install or Replace- For Business
• Wood Shake or Composite Roofing - Repair- For Business
• Natural Slate Roofing - Install or Replace- For Business
• Sealant for Roof - Apply
• Asphalt Shingle Roofing - Install or Replace
• Natural Slate Roofing - Install or Replace
• Asphalt Shingle Roofing - Install or Replace - For Business
• Sealant for Roof - Apply- For Business

In Their Own Words

Since 2006, Illinois Insulators has been the premier insulation company in Downers Grove, IL, dedicated to serving Lemont, Joliet, Homer Glen, Downers Grove, Lisle, and surrounding areas. We offer specialized services including insulation, soundproofing, mold remediation, and fireproofing. Contact Illinois Insulators in Downers Grove today for expert solutions and more information!

Written by the business on its public profile. We have not verified these claims.

Before You Call Illinois Insulators

1. Do you take moisture readings every day and will you give me the drying log?
2. Are your technicians certified in water damage restoration?
3. Where do you think the moisture is coming from, and who fixes it?
4. Will you set up containment and negative air, and how will you protect the rest of the home?
5. Do you also do remediation? If so, who checks your work?

Ask for the contractor license your city or village requires, since Illinois has no statewide general contractor license, and check it with the local building department. Also ask for proof of insurance and industry certification for the technicians.

How Their Reviews Break Down

Counts from public listings as of September 23, 2026. A handful of reviews says less than a few hundred.

Read This While You Wait

• DIY with careWhat to Do in the First 24 Hours After Water DamageAn hour by hour plan for the first day after water damage. Make it safe, stop the source, document, remove water and start drying before mold can start.
• DIY with careSafe DIY Mold Cleanup for Areas Under 10 Square FeetA step by step method to clean up mold under 10 square feet safely, with the gear to buy, what to throw away, why bleach is not the default, and when to stop.
• Call a proMold Testing, When It Is Worth It and How to Read a Lab ReportWhen a mold test is worth paying for, which kind to ask for, why store kits mislead, and how to read spore counts, outdoor controls and a lab report yourself.
• DIY friendlyWasher, Dishwasher, Fridge and Toilet Supply Line LeaksHow washer hoses, dishwasher lines, ice maker tubing and toilet supply lines fail, how to clean up each kind of leak, and how to replace a line yourself.