Energy savings

How Much Can You Save By Adding More Attic Insulation

If you’re like most Southern California homeowners, you’re always looking for ways to save money on your energy bills. One option that’s often overlooked is blown-in insulation. But how much does blown in insulation save on energy bills, and is it worth the investment? In this blog post, we’ll take a look at the benefits of blown in insulation and how much you can expect to save. Read on to learn more!

Attic insulation is one of the most important investments you can make in your home. Attic insulation pros will tell you that in addition to reducing your heating and cooling costs, attic insulation also helps to minimize noise pollution, improves indoor air quality, and even reduces the risk of fire. Attic insulation is typically made from fiberglass, cellulose, or foam, and is available in a variety of thicknesses. The higher the R-value, the more effective the insulation will be.

For most homes, an R-value of R-38 is sufficient.. Attic insulation is an important investment in your home, and one that will pay for itself many times over in reduced energy bills.

How much electricity does insulation save?

Blown in insulation is a popular way to insulate your home. But how much does it really save on energy bills? Here’s what you need to know.

Blown in insulation is a type of insulation that is installed using a special machine. The machine blows the insulation into the attic, ensuring that it is evenly distributed. Blown in insulation is often made of fiberglass or cellulose, and it can be an effective way to save on heating and cooling costs. 

The EPA estimates that the average homeowner can save 15% on their energy bill by adding blown insulation to their attic. Our attic insulation customers are seeing savings double what the EPA estimates are. Blown in insulation installers are trained professionals who can help you choose the right type of insulation for your home and install it properly. Adding blown-in insulation to your attic is an effective way to save money on your energy bill and make your home more comfortable.

Poorly insulated attic
Poorly insulated attic with batts of R-19

Savings between R19 and R38

Attic insulation experts say that adding any insulation to uninsulated homes can save more energy than adding more insulation to already-insulated homes. Studies have shown that attic insulation is one of the most effective ways to reduce energy costs in a home. In fact, attic insulation can save homeowners an average of 15-30% or in some case more on their energy bill when upgrading from R19 to R38. 

However, many homes are still not properly insulated to code, which calls for R38.. Adding even a small amount of attic insulation can make a big difference in energy efficiency. And attic insulation experts say that the more attic insulation a home has, the more energy it will save. 

The Department of Energy estimates that you can save 10-30 percent annually on your energy bill when you properly insulate your attic. So if you’re looking for a way to save on your energy bill, adding attic insulation is a great place to start.

Download our Attic Insulation Price Sheet

Get Your "Price Sheet" with Bonus "Energy Saving Sheet".
Use the "Price Sheet" as a guide to get a ballpark estimate on insulating your attic. There is also a bonus so you can see how much attic insulation will save you on your energy bill.
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10 being the most comfortable.
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10 being very high.

What is the most important part of a house to insulate?

Hands down the attic. Attic insulation is one of the most important ways to reduce energy costs in the home. During the summer attic insulation keeps the sun’s radiant heat from pushing the heat down from your attic through the ceiling. In the winter, attic insulation will keep the heat from escaping through the attic and pushing up energy bills. 

Insulation contractors can install attic insulation quickly and efficiently, and the benefits of attic insulation will quickly be seen in lower energy bills. Attic insulation is an important step in keeping the home comfortable and reducing energy costs.

Blown-in attic insulation
Blown in attic insulation installed in an attic.

Which is cheaper blown-in insulation or rolled?

Getting a quote from an insulation contractor is the best way to budget for your insulation needs. Blown-in insulation typically costs between $1 and $1.50 per square foot, while rolled insulation can be purchased for a little less. However, you can install blown-in insulation much faster, so your labor costs will be lower in the long run. In addition, blown-in insulation provides a better seal against air leaks, so you’ll see greater energy savings over-time. As a result, the initial investment in blown-in insulation is well worth it in the long run.

Which type of blown in insulation is best?

Fiberglass, cotton, and mineral wool can all work as loose-fill insulation material, but the far and away top choice for blown-in insulation is fiberglass. Contrary to batts insulation, blown-in fiberglass insulation is perfect for filling in tight voids around wiring, pipes, or any area with awkward framing. That makes it perfect for retrofitting an existing home with insulation. It’s also the most common type of insulation found in new construction. Blown-in fiberglass is made up of small glass fibers that are spun into a mat. 

The mat is then cut into small pieces and blown into place with a special machine. The glass fibers end up interlocking with each other, creating an airtight seal that helps keep your home warm in the winter and cool in the summer. Getting a quote from an insulation contractor is the best way to budget for your project. Fiberglass, cotton, and mineral wool can all work as loose-fill insulation material, but the far and away top choice for blown-in insulation is fiberglass.

Installing insulation in an attic.

Can I put new insulation on top of old?

Many people think that the best way to insulate an old home is to simply add new blown-in insulation over the existing material. However, this is only advisable if the old insulation is dry and in good condition. Your insulation contractor would give you good advice on adding insulation over old. If the insulation is wet or has been wet, it is best to remove it and look for the cause of the moisture problem before adding new insulation. 

By taking these precautions, you can help ensure that your home is properly insulated and prevent costly damage in the future. By following these guidelines, you can help keep your home comfortable and energy-efficient for years to come.

Therefore, it is not always necessary to remove attic insulation before installing new material.

Why you shouldn't spray foam your old attic?

Is spray foam good to insulate an attic? If you have preexisting skin, respiratory, or asthma conditions, you are at an even greater risk of exacerbating these problems when introducing the chemicals in spray foam insulation into your home’s air. 

That’s why it’s important to be aware of the risks associated with spray foam insulation and take steps to mitigate them. One way to do this is to make sure that the area where the spray foam is being applied is well ventilated and not into the downstairs living area.

Spray foam in an attic is ok when a home is being built, but not so much for old or existing homes.

Attic insulation to save money.

Insulation savings calculator

Try out these attic insulation saving calculators to see how much you can save on your energy bill.


If you’re looking for a way to increase your home’s energy efficiency and save on your monthly heating and cooling bills, blown in attic insulation may be the answer. We’ve outlined some best practices for installing attic insulation that will help you get the most out of this home improvement project.

And if you decide to go ahead with the installation, we offer a free quote so you can find out how much money you can save by insulating your attic. Contact us today to get started!

Get a FREE Attic Insulation Quote Today!
Whether it is a residential or commercial property, whatever your insulation needs are, Blown - In Insulation is the insulation contractor you want! Contact Brad today for more information on our services, and don’t forget to ask for your free quote! Phone: (626) 696-6042 ‍ Service Area: Southern California