Insulation

Insulation is the material that helps regulate your home's temperature by slowing heat transfer through walls, attics, and floors. Whether you're upgrading old fiberglass batts, sealing air leaks, or exploring spray foam options, the right insulation keeps energy bills down and comfort up year-round. Angi connects you with local pros who can assess your needs and provides resources to guide every step of your project.
Insulation Service Articles and Advice
You don’t need to be a contractor to learn how to better insulate your home. Our guide provides 10 tips to help winterize your home when the temperatures drop.
Use this DIY checklist for insulation repair to make your living space more comfortable and reduce your heating and cooling bills in the process.
Your attic insulation removal cost will vary based on multiple factors, including why you're removing it and how easy it is to complete the task.
The cost to insulate a basement varies based on materials, size, and other factors, as well as how much of the work you wish to perform yourself.
How much does a radiant barrier cost? Our guide breaks down prices by type of barrier and size of your attic space.
Discover the average injection foam insulation cost, key price factors, and ways to save. Get transparent estimates to plan your home insulation project confidently.
How much does it cost to insulate a wall? This guide breaks down the associated costs and variables to consider when setting your project budget.
Your home's ceiling insulation cost will depend on several factors, including the project size, the type of insulation you use, and the R-value.
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Common Insulation Service Questions

Consider energy performance ratings, durability, aesthetics, and ease of maintenance when selecting windows for different environments.

Once installed, injection insulation requires little maintenance, but periodic inspections for air leaks or moisture buildup are recommended.

Ideally, you can add new insulation to your existing insulation. However, some circumstances require you to remove old insulation before adding any new insulation: 

  • If the insulation is over 15 years old

  • If the insulation is wet or moldy

  • If it is vermiculite insulation

  • If you see signs of pest infestation

Removing old insulation is best left to a pro who can safely dispose of potential moldy or asbestos-ridden insulation.

Although fiberglass dust is generally not considered toxic, inhaling excessive amounts of it can lead to health risks. Irritation to the respiratory system, eyes, and skin are common effects of fiberglass particle inhalation. While short-term exposure to the dust may only cause temporary discomfort, long-term or chronic exposure can lead to more severe respiratory problems.

Proper safety measures, such as wearing appropriate protective equipment, including masks and goggles, should be observed when handling or working with fiberglass materials to minimize health risks. It is important to note that, unlike asbestos, fiberglass is not associated with life-threatening illnesses.

The heat loss through a poorly insulated attic when you’re running your furnace or heat pump during cold weather can be as high as 25%. This means you could see significantly higher energy costs to make up for this heat loss. The cost of adding insulation to the attic may eventually pay for itself through lower energy bills. If you decide to add a radiant barrier too, the radiant barrier cost may also pay for itself over time.