How Much Is Spray Foam Insulation

Insulation made of spray foam is pricey. It is widely shared on the internet. However, what amount of money is excessive? Since the precise cost of a project relies on its requirements, the majority of insulation contractors do not disclose their prices to the public. Although the cost of spray foam is a more complex subject, a rough estimate may be provided. In this post, you will know how to determine the estimated cost of spray foam for your project by the time you finish reading.

How Much Does Spray Foam Insulation Typically Cost?

Although it can cost as much as $4.50 per square foot, spray foam insulation typically costs between $1.25 and $1.50. The following elements are potential causes of price increases:

  • Type: Spray foams come in a variety of forms and prices for use in homebuilding.
  • Area size: The expense of insulating larger surfaces is higher.
  • Thickness: The cost of insulation increases with its thickness.
  • Location: A more complex installation is often more expensive. Insulating your garage, for instance, might be less expensive than insulating your attic.
  • Labor: The cost of labor varies depending on where you live and how long the job takes to finish. Generally speaking, labor should cost between $0.44 and $1.55 per foot.

Factors That Influence Spray Foam Insulation Cost

It doesn’t end there just because you know how much a professional spray foam insulation installation company costs you service per square foot and how big your living area is. Numerous additional factors will also have an impact on the overall cost. Remember that none of the elements have a defined cost because they are determined on an individual basis and might differ significantly based on the contractor. Let’s examine each of these variables that affect the cost of foam insulation, from the size of the area that has to be insulated to the complexity of the work.


Spray foam insulation is placed between the roof and wall studs of your house. More thick and resistant to both heat and cold air as well as moisture is closed-cell spray foam. Although open-cell offers superior fire protection, it is not moisture resistant. While open-cell spray foam is more expensive per square foot, closed-cell spray foam costs between $1.25 and $1.50. 

Area Size

The cost of closed-cell insulation for a typical 1,500-square-foot home is $4,725 to $11,250, while open-cell insulation is from $4,125 to $9,750.


The main factor influencing the cost of spray foam insulation can be thickness. The cost of one-inch open-cell foam is around $0.44 per square foot, but the cost of three-inch closed-cell foam can reach up to $8.70 per square foot.


Spray foam insulation varies in price depending on where it is installed. For instance, it will be less expensive to install the best spray foam insulation in a completed basement with a heat pump than it will be to insulate an unfinished basement. Large areas or locations that are very challenging will also raise labor expenses. Spray foam insulation is frequently utilized on difficult-to-reach roof components, such as crawl space ducting and pipes.

Labor Cost

The size of your insulation job, the materials required, and the completion time all affect labor expenses. Labor includes arranging supplies, getting the task site ready, clearing out any garbage, and cleaning up when the activity is over. Typically, insulation calls for two people to collaborate on a single wall. The typical cost of labor and supplies ranges from $1,700 to $3,000.

Expert vs Do-It-Yourself Spray Foam Insulation

Installing spray foam insulation may seem simple, but it’s a very involved task.

Professional Spray Foam Insulation

The best option is generally to hire an insulation professional to install spray foam. Once the chemicals are combined, the insulation expands fast, and experts will know how to apply it in even layers to avoid sagging or swelling. Furthermore, many producers of insulation will only market their goods to certified experts. Professional contractors can finish the job faster and neater than ordinary homeowners, and they’ll make sure their work complies with building requirements, even if labor will cost you money.

DIY Spray Foam Insulation

Although DIY affordable spray foam insulation kits are available, they typically only contain foam and the equipment needed for spraying. A 200-square-foot kit would run you around $400, while a 600-square-foot package will run you roughly $800. At an extra expense of around $178, you’ll also need safety gear for yourself and plastic sheeting to cover your stuff because polyurethane foam may be dirty and release volatile organic compounds (VOCs) when it dries. The supplies you’ll need to drill holes in and fix your walls, floors, and ceilings are not included in this. Generally speaking, we advise leaving this task to the experts.

So, Is Insulation With Spray Foam Worth It For Your House?

If your goal is to improve the energy efficiency and thermal performance of your house, spray foam is a fantastic substitute for traditional insulation. For homeowners looking to upgrade their homes with eco-friendly and energy-saving goods, it’s also a wise investment. 

Because of its versatility, spray foam insulation may be utilized for both residential spray foam insulation installation services and commercial spray foam insulation installation purposes, as well as for insulating various areas of your home. Customers have the freedom to select between open-cell and closed-cell spray foam, based on their preferences and requirements.

Furthermore, such insulation is beneficial because it minimizes air penetration, reduces noise, provides heating and cooling advantages, and may be used in difficult-to-reach areas. The thickness, size, kind of spray foam, and installation method of the spray foam insulation will all affect the final cost. Although spray foam insulation may cost more than other conventional insulation materials, its advantages will outweigh the cost.


Spray foam insulation installation is a big, intricate task. It’s simple to make costly errors or even hurt oneself while doing so. The best option for insulating rooms, attics, or garages is to hire a professional insulation contractor; however, adding insulation to your doors or window frames may be a decent do-it-yourself effort.