Sample project estimates
Rough budgeting based on typical Guys pricing.
| Project size | Low | Average | High |
|---|---|---|---|
| 800 sq ft | $640 | $1,200 | $2,000 |
| 1,500 sq ft | $1,200 | $2,250 | $3,750 |
| 2,400 sq ft | $1,920 | $3,600 | $6,000 |
What affects fiberglass insulation cost in Guys
- Project size and access: larger projects cost more in total but less per unit. Hard access (steep roofs, low crawl space) adds labor.
- Final R-value or thickness: R-49 attics cost more than R-30, but qualify for higher rebates.
- Removal of old insulation: contaminated or damaged material needs to come out first.
- Air sealing scope: bundling air sealing with insulation is cheaper than two separate visits.
- Local demand: peak winter and summer months in Guys can push prices 10–15% higher.
Rebates & tax credits
Most Guys homeowners cut their out-of-pocket cost with the federal 25C tax credit (30% of materials, up to $1,200/year) and TN state and utility rebates.
How to get an accurate quote
- Submit your project details using the form on this page.
- A local Guys insulation contractor follows up to schedule a free measurement.
- You receive a written quote with final R-value, scope, and price.
- Compare 2 quotes side by side before committing.
Related
- Fiberglass Insulation overview
- Fiberglass Insulation contractors in Guys
- Complete insulation cost guide
- All insulation services in Guys
- Insulation cost calculator
- How we match you with Guys contractors
- Contractor standards
Compare fiberglass insulation vs. alternatives
Common questions
Short answers about how we match fiberglass insulation cost in Guys homeowners with vetted local insulation contractors.
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Fiberglass Insulation contractors in Guys
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All insulation services in Guys
Attic, spray foam, blown-in, crawl space, and more.
Insulation cost calculator
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Fiberglass vs. Cellulose Insulation
Compare materials before you buy.