Blown-In Insulation Cost in Baltimore [2025 Data]

 With Baltimore homeowners paying around 14% above the national average for new blown-in insulation, the average blown-in insulation cost in Baltimore is $1,806. However, your final total for this project might fall between $1,140 and $2,580. Everything from the size of the area being insulated to the R-value you select will ultimately impact final costs. Read on to learn about the major cost factors you'll encounter as you move forward with improving your Baltimore home's comfort and efficiency with new blown-in insulation.

Blown-In Insulation Cost Factors 

Colder winters in Baltimore mean that homeowners need to consider paying the maximum amount for high-quality R-60 insulation for their attics. However, there are several different blown-in insulation types to choose from that allow you to retain control over this project's budget at the end of the day.

Size of the Area

The biggest cost factor is the size of the area that requires insulation. A larger area requires more insulation and labor, increasing the overall price. This metric is calculated by multiplying your square footage by the cost per square foot of your chosen insulation materials, which are detailed below. However, a general range for blown-in insulation per square foot is $2 to $7.47 depending on the type.

R-Value

When measuring the efficacy of any insulation material, it all boils down to the R-value. Generally speaking, higher is better, though there are two metrics to consider. There’s the overall R-value and the per-inch R-value. For example, if you want a total R-value of 30, you’ll need ten inches of insulation at an R-value of 3.0 per inch. Materials with higher R-values cost more, like sheep’s wool, but you don’t need as much material to complete the installation. 

Below is a breakdown of R-values and the corresponding prices:

Type of Insulation

The cost to install blown-in insulation depends on the type of insulation you choose for the project. Anticipate spending anywhere between $0.40 and $2.50 per square foot for materials, not including installation. Below is a breakdown of each blown-in material type and how much it costs.

Blown-In Insulation Pro Costs

When hiring local blown-in insulation installers in Baltimore, Maryland, you're likely to be given estimates that consist of rates by square foot based on how much blown-in insulation you need. This rate generally covers all labor and materials needed to get the project done based on the specs needed at your home. Keep in mind that labor rates for insulation installation in Baltimore generally build in costs for things like contractor insurance, licensing, and permits.

Local Labor

Your local insulation installer in Baltimore will probably charge between $3 and $6 per square foot for labor. If your home's current insulation needs to be removed, expect to be charged anywhere from $1 per square foot to have ordinary insulation removed to $7 per square foot for asbestos insulation removal.

Permits

A project like new siding that alters your home's physical barrier generally requires a permit to ensure you're complying with all local and state building codes. Permits for this project might cost $100 to $200.

Insurance

Baltimore contractors are required to carry general liability insurance with a $50,000 minimum for most applicants. In addition, contractors with employees must have workers' compensation insurance. In all, this can lead to monthly premiums ranging from $45 to $200.

Taxes

While you won't be charged sales tax for the labor on your new insulation installation, your contractor will tack on Maryland's 6% state sales tax to the blown-in insulation materials needed for this project.

Licensing

Any contractor you hire for blown-in insulation in Baltimore must be licensed by the state's Home Improvement Commission (MHIC). With initial licensing costs at $350 and renewal costs of $250 due every two years, licensing costs are reflected in insulation contractor rates.

Does New Blown-In Insulation Increase Home Value?

Return on investment is strong for blown-in insulation in Baltimore due to a combination of the city's cold winters and high energy costs. With homeowners noticing recent spikes in energy costs across Maryland, upgrading insulation is one way to cut oil or electricity bills.

How Angi Gets Its Cost Data

Home is the most important place on earth, which is why Angi has helped more than 150 million homeowners transform their houses into homes they adore. To help homeowners with their next project, Angi provides readers with the most accurate cost data and upholds strict editorial standards. We extensively research project costs to develop the pricing data you see, so you can make the best decisions for you and your home. We rely on reputable sources, including the U.S. Bureau of Labor Statistics, academic journals, market studies, and interviews with industry experts—all to ensure our prices reflect real-world projects. 

Want to help us improve our cost data? Send us a recent project quote to [email protected]. Quotes and personal information will not be shared publicly.