Serving Northern IL & Chicago Suburbs

Retrofit Insulation In Northern IL, Rockford, Chicago Suburbs & Southern WI

Retrofit insulation is the process of adding insulation to an already insulated building when the existing insulation has lost it’s R-Value or effective insulating properties. Insulation is inserted into the walls through small holes drilled one yard above the floor and one foot below the ceiling. An insulation blower machine or spray foam machine is used to fill the walls with spray foam or any type of loose fill material such as rockwool, fiberglass, cellulose or denim.

After the walls have been retrofitted with insulation, a small plastic cap is inserted into the hole and the area is skim coated and repainted to match the wall. Exterior walls of the home may be filled by removing pieces of the siding and then covering the area. 


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    Retrofit Insulation

    What Are The Benefits Of Retrofit Insulation?

    What is the cost of retrofit insulation?

    Spray injection foam provides an air seal and may be able to reach parts of the inside wall unreachable by a loose-fill blow-in product. Spray foam is higher in cost due to it’s special capabilities which may not be the best option for a home owner on a budget. However, a fiberglass loose-fill is a very affordable product and can offer comfort, moisture control and sound dampening at a much lower cost.

    Contact our team of trained certified technicians for a free assessment and quote. We can go over price options with you and make a plan to fit your budget. 

    Why Choose Our Team?

    1. Professional Service

    All Comfort 1st Insulation technicians are certified, insured, knowledgeable of current building codes, fully trained and punctual. 

    2. Warranty

    All services performed by Comfort 1st Insulation are warrantied as a promise to our customers that the job is always done right the first time.

    3. Customer Satisfaction

    Comfort 1st Insulation is devoted to improving our customer’s energy efficiency and comfort through insulation services. The work is never completed until the customer is satisfied!



    1. Call Us

    Consult with a Home Performance & Insulation Contractor for your free estimate and consultation.

    2. Free Quote

    Once you reach out, we’ll work with your schedule to plan an appointment for an expert to assess your home and provide an estimate.

    3. Do the Work

    After the assessment, you’ll be given a quote and we can proceed with performing work on your home.

    4. Start Saving

    Once the insulation work has been completed, you’ll notice decreasing utility bills, increased efficiency of the home, and greater comfort.

    Certifications And Affiliations

    Comfort 1st Insulation provides quality insulation services with expertise that can be clearly seen in our photo gallery. Review our work and if you would like any further information or have questions, please fill out our contact form and a member of our certified team can reach back out to you!

    Who Can Help Me Install Retrofit Insulation?

    Curious about insulation installation for your home or place of work? Comfort 1st Insulation provides professional insulation services in Northern Illinois, the Chicago suburbs, the greater Rockford area, and southern Wisconsin. Give us a call at (833) 244-7283 to have one of our professionals inspect your attic. Have any inquiries for your Rockford area home or business? Please fill out our contact form to get ahold of the experts at Comfort 1st Insulation or email us at

    Recieve A Free Insulation Consultation!