Built with Integrity & Maintained with Quality

Founded on hard work, honesty and dependability by Glenn & Grant Farmer (G&G) in 1951, G&G Insulation has remained a respected name in Idaho insulation for several decades. Now owned and operated by Brandon and Whitney Gallegos, G&G continues to deliver high-quality products and services to the Greater Treasure Valley and Magic Valley regions. They strive to carry on the solid reputation of the G&G name through excellent workmanship on every single project.

Insulation in Boise & Beyond
G&G is a local insulation contractor with two convenient locations in Meridian, Idaho and Twin Falls, Idaho. We serve new construction and retrofit insulation projects in the Treasure Valley and Magic Valley regions.

Proudly Serving the Twin Falls Insulation Market
G&G Insulation’s Twin Falls branch covers the insulation needs of Southern Idaho. We work with both homeowners and builders to provide comprehensive energy-saving solutions. We are in the business of making residential, commercial and agricultural structures quiet, comfortable and energy smart.


Contact us today for a consultation.

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Our Service Spectrum

  • Commercial & Residential
  • Single Family & Multi-Family
  • New Construction, Retrofit &
  • Remodels
  • Insulation, Air Sealing, Radiant Barrier & Firestopping

Our Service Assurance

  • Six decades of experience
  • Professional, well-trained installers
  • Owens Corning Certified Energy Expertise
  • BPI Training & Certification
  • RESNET Training
  • HERS Certification

Our Customer's Words

I have told people about what you did all these years and how it helped me with heating bills at a time I really needed help.

– Cindy G

“We believe that our years of expertise and experience brings better service to our customers. Everyone on our team knows the importance of the services that we provide and works hard to make sure that our customers are satisfied.”

– Brandon Gallegos, Owner