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Do I Have Insulation in My Home?

It’s no big news that insulation helps maximize the energy efficiency of homes, but knowing whether your space is insulated—or insulated well enough—is another story. How can you check for insulation in your house?

In general, we recommend all insulation inspections and projects be left to professionals, but there are easy enough ways for you, the homeowner, to do some basic checks. After all, it can be helpful to have some information when you talk to the pros!

How to check for insulation in the attic

As one of the biggest sources of energy loss in homes, the attic is a good place to start when it comes to insulating. Does your attic have enough insulation? As a quick inspection, poke your head up into the attic and take a look. If the insulation is level with or below the floor joists, you probably need to add more insulation. Keep in mind that the insulation be evenly distributed with no low spots—sometimes there is enough in the middle of the attic and very little along the eaves.

How to check for insulation in the walls

The walls can be another significant source of energy loss. If you don’t want to make a hole in the wall, the easiest technique is to remove the light switch plate or electrical outlet plate and look to the side of the box. To the side of the box, the wall will appear either empty or you’ll see insulation. It will be clear if you need more wall insulation.

Insulation Installation in the San Diego & Los Angeles Areas

The vast majority of houses have some sort of insulation, but homes built before the 1970s tend to not have enough insulation. If you think you may need more insulation, call the experts at OJ Insulation! We have been insulating Southern California homes for decades.

Contact us today to learn more!

Where should you insulate in your home? Check out our interactive infographic:

Home Insulation

We insulate attics, walls and crawl spaces.

Commercial Insulation

We insulate warehouses, offices, studio spaces & more.

Insulation Removal

Do you need to remove old insulation? We can help.


We work with builders to install fireplaces.

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