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Our Story
Granite City Insulation Inc. has been in business since 2005 and is located Mount Airy, North Carolina.
We specialize in both commercial and residential insulation and service NC, SC and Virginia.
Granite City Insulation Inc. -Your experts for spray foam and fiberglass insulation!!!
What We Do
Commercial Experience
Regions & Counties Serviced
- North Carolina and Upstate South Carolina
North Carolina All
Virginia All
Our CSI Codes
07 01 20 - Maintenance of Thermal Protection
07 06 20 - Schedules for Thermal Protection
07 20 00.00.01 - Thermal Protection
