Insulation Guides
Plain-English answers to the most common insulation questions — from R-value targets to rebates to comparing materials.
Insulation cost calculator
Estimate installed cost for attic blown-in, spray foam, crawl space encapsulation, wall retrofit, and removal — with regional pricing for 2026 projects.
Open the calculator →Rebates
6 min read
The 25C Insulation Tax Credit Ended After 2025: What Homeowners Need to Know (2026)
The federal 25C Energy Efficient Home Improvement Credit no longer applies to insulation placed in service after December 31, 2025. If you finished qualifying work in 2025 you can still claim it on your 2025 return. For 2026 projects, incentives come from state and utility programs, where available.
6 min read
Insulation Rebate Directory: Federal, State, and Utility Programs
A single reference page for the incentives that actually reduce insulation project cost. Bookmark it — programs move quickly.
Buying Guide
7 min read
How Much Attic Insulation Do I Need? (R-Value by Zone)
The Department of Energy recommends R-49 to R-60 for attics in most of the U.S. Here's how to translate that into inches of insulation and a project budget.
6 min read
10 Signs Your Home Needs New Insulation
Most homes built before 2010 are under-insulated by today's standards. Watch for these ten signs that your insulation is past its prime.
6 min read
Best Insulation for Crawl Spaces
Crawl spaces are the #1 source of unwanted heat loss and humidity in many homes. Here's how to insulate them correctly — once.
5 min read
Soundproofing with Insulation: What Actually Works
Insulation alone isn't a soundproofing miracle, but combined with smart wall assemblies it'll cut noise transmission dramatically.
6 min read
Insulation for New Construction: Spec Checklist
Building new? Insulation is the cheapest energy upgrade you'll ever make. Here's how to spec it right the first time.
6 min read
Crawl Space Insulation Checklist: What to Inspect Before You Insulate
Insulating a crawl space before you fix the moisture and air leaks below it is throwing money away. Use this checklist before you sign a contract.
Cost
8 min read
Insulation Cost Guide: What to Expect in 2026
What you'll actually pay for insulation in 2026 — broken down by material, project type, and what's typically included in a quote.
5 min read
Insulation Rebates & Tax Credits for 2026
Insulation is one of the most heavily subsidized home upgrades in 2026. Here's every program homeowners should know.
Commercial
8 min read
Commercial Warehouse Insulation: Complete Guide
Warehouses and distribution centers are one of the largest energy loads in commercial real estate. Here's what to spec, what it costs, and what to ask contractors.
7 min read
Cold Storage Insulation: Freezers, Coolers, and Refrigerated Warehouses
Cold storage failures almost always trace back to two things: not enough R-value, and no plan for vapor drive. Here's how to spec both correctly.
6 min read
Metal Building Insulation: Systems That Actually Work
Metal buildings amplify heat, cold, and condensation. Here are the four insulation systems used in the field — with the pros, cons, and cost of each.
9 min read
Property Manager Insulation Planning Guide (Multifamily & Commercial)
Insulation is one of the highest-ROI capital improvements in property management — if it's scoped and sequenced correctly. Here's how experienced operators plan the work.