Spray Foam 101

The Spray Foam 101 Blog

Practical, no-nonsense articles for homeowners researching spray foam insulation.

Spray foam contractor applying insulation in an attic, illustrating 2026 cost factors

How Much Does Spray Foam Insulation Really Cost in 2026?

Spray foam pricing varies wildly from quote to quote. Here is a full breakdown of what you should actually expect to pay in 2026, and why two bids for the same house can differ by thousands.

New construction home with spray foam insulated walls before drywall installation

Does Spray Foam Insulation Increase Home Resale Value?

Energy efficiency upgrades increasingly influence how buyers evaluate a home. Here is how spray foam specifically factors into resale value, inspections, and appraisals.

Closed-cell spray foam applied to a basement rim joist and foundation wall

Closed-Cell Foam and Basement Moisture: What Homeowners Should Know

Closed-cell foam is a popular choice for basements because of its low permeability, but it is easy to misunderstand what it actually solves versus what it does not.

Homeowner inspecting attic insulation with a flashlight for signs of wear

5 Signs Your Attic Needs Better Insulation This Year

Your attic is usually the biggest energy leak in the house, but the warning signs are easy to miss until a bill or a repair forces the issue. Here are five to watch for.

Homeowner reviewing a written scope of work with a spray foam contractor

10 Questions to Ask Before You Hire a Spray Foam Crew

Spray foam quality depends almost entirely on the crew doing the work. These are the specific questions that separate a solid contractor from a risky one.

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