We Specialize in INSULATION!

Serving Northern Illinois & Southern WI

BBB-Accredited & Insured

Our Estimate is Our Word – No surprise invoices!

Make sure to check with your Utility Company for insulation rebates and construction discounts

Insulation Contractors in Rockford - Industry Certified Installation

Comfort 1st insulation is a group of leading home and energy performance contractors in Rockford, IL. Our team specializes in residential and commercial projects with a total service area that includes Rockford and its surrounding areas, as well as southern areas of Wisconsin.

Our services provide greater comfort and increased energy and utility savings through insulation installation/removal, home energy assessments, attic restoration, ice dam control, and fresh air ventilation systems.

Contact us today for your Free Quote! You can give us a call at (833) 244-7283, email info@comfort1stinsulation.com or fill out a contact form. Overall, feel free to ask any questions or voice concerns. We love keeping our customers informed!

Residential / Home and Commercial Insulation Products

To ensure we can provide the best insulation system for your home, we offer many types of insulation to suit every situation such as:

Contact us today for your Free Quote! You can give us a call at (833) 244-7283, email info@comfort1stinsulation.com or fill out a contact form. Overall, feel free to ask any questions or voice concerns. We love keeping our customers informed!

Ask An Industry Leading Contractor Team

Our insulation contractors are licensed, insured, and use only top quality materials from trusted brands. We’re certified and accredited professionals with the knowledge and experience to provide the best tailored insulation system for your needs. Customer satisfaction is our top priority—which is why we offer our lifetime warranty and satisfaction guarantee—letting you know we get the job done right the first time.

Get Your Free Quote!


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1. Call Us

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

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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.

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3. Do the Work

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

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4. Start Saving

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

Client Reviews Of Our Insulation Contractors


Incorrectly installed insulation can cause big headaches. When insulation contractors cut corners, homeowners suffer from higher heating/cooling costs, and risk structural damage to their homes from bulk moisture. A trained professional knows the codes and can correct any problems that your home may be facing.

Our lifetime warranty covers defects in workmanship because we are confident our work is done right the first time. We guarantee to install the correct amount of material for blown insulation to achieve the installed R-value stated on the estimate. All insulation final heights are estimated and will vary since the insulation in an attic can be uneven.

A Home Energy Assessment, or energy audit pinpoints trouble spots that cause comfort issues and cost you money. Our certified energy assessors will perform a series of diagnostic tests on your home before making recommendations. Some of these tests include:

Thermal imaging – find missing insulation

Blower door tests – locate drafts & measure ventilation

Combustion safety – check gas leaks & furnace efficiency

Indoor Air Quality – certify your indoor air quality

Yes! Think of it like putting on a new thick coat over an old worn out coat. Before insulating, we add ventilation and seal energy leaks with spray foam including: attic penetrations, wiring, top plates, and chase ways.

However, if the insulation has become wet this can lead to mold, mildew, or building damage. In this case, the insulation needs to be removed, we can do this for you.

Insulation is not just for attics and outside walls. Insulation should also be installed by insulation contractors in other areas of your home such as ceilings with unheated spaces, basement walls, floors above vented crawl spaces, cathedral ceilings, floors over unheated garages or porches, knee walls, and ceilings or floors for extra sound control.

Each type of insulation has its inherent pros and cons and each is best suited for certain applications. That’s why at Comfort 1st we don’t specialize in only one type of insulation, but rather offer our customers the best options for their situation.

According to the EPA, “Americans, on average, spend approximately 90 percent of their time indoors, where the concentrations of some pollutants are often 2 to 5 times higher than typical outdoor concentrations.”

Traditionally, homes in the past were built leaky; they relied on passive ventilation to bring in dirty air from gaps, and cracks in the building envelope. With advanced new construction, active ventilation supplies fresh filtered air to the home, and the building envelope is built as tight as possible.

We’ve taken the same approach as new construction and have applied it to existing homes. First, we find and seal energy/air leaks, and then we certify your air quality by installing a Fresh Air Ventilation System.

If your garage is heated full-time, it’s costing you money, and it should be insulated. Even if you’re not heating your garage full-time, insulation will keep your car or garage work space more comfortable.

Yes, upgrading insulation is an efficient, and affordable way to reduce sound. In new construction, sound reducing insulation is installed inside interior and exterior walls. For existing homes, your home will look the same, but it will be quieter and more comfortable.

Yes, ice dams can be prevented by stopping rapid heat loss into the attic. First, the attic should be professionally air sealed and ventilated properly. Next, the attics insulation levels should be brought up to code by one of our insulation contractors.

Particular attention should be given to sealing drop soffits, chase ways, and improperly vented bath fans.

R-value tells you how a material resists heat transfer. The higher the value, the greater the resistance. R-values per inch vary with different insulation materials. Therefore, how well insulation performs is more accurately measured by its total R-value than by inches of thickness.

For a typical home in Northern climates, the recommended insulation height for an attic should be about 16 to 18 inches.

Free Insulation Consultation!
Comfort 1st Insulation