The Cost of Spraying Foam Insulation in a Condo Ceiling for Sound-Proofing

General Information

• Foam soundproofing is sprayed into the walls or ceiling and works its way into any miniscule gaps, holes and cracks where sound travels. Spray foam is available in an open-cell variety, which is less expensive but has a lower R-value, which is a measure of a material's resistance to heat transfer. Closed-cell foams are more expensive, but have a higher R-value so less product is needed. As with most home improvement projects, prices may vary based on your region and per company, so be sure you seek multiple bids.

Installation Cost

• Spray foam installation has a higher cost than fiberglass by about a 20 percent. Spray foam insulation will run about $1.40 to $3 a square foot, at the time of publication. If your condo is 1,500 square feet, expect to pay between $2,100 to $4,500. Your contractor may quote the price in terms of a board foot, which is 1 foot by 1 foot by 1 inch, so be sure you don't mistake this measurement for the square foot cost.

DIY

• DIY kits are available that will provide you with the basic tools and materials to spray in the foam insulation by yourself. This is one way to decrease the cost of installation, but plan on using more foam than a professional since you will not be accustomed to the procedure. Thoroughly research how to install spray foam insulation before tackling this project.

Energy Savings

• Although spray foam insulation has a higher upfront cost than fiberglass insulation, it can dramatically decrease your energy costs. Even though you are using the foam for soundproofing purposes, it will also help you conserve energy. A well-insulated house can decrease your energy expense by up to 50 percent. This allows you to recoup your investment within three to five years.

Other Savings

• Until the end of 2011, increasing the insulation in your home can qualify you for a tax credit. The tax credit will cover 10 percent of the total cost, up to a maximum of $500. The credit won't cover the installation itself, but it will cover the amount you paid for the spray foam product. Adding spray foam insulation will decrease your need and expense for other weatherizing projects, like adding a housewrap, adding a vapor barrier and caulking.