Premium Attic Insulation for Ultimate Home Comfort & Savings

Stop losing money through your ceiling. Our meticulous process delivers lasting results — from air sealing to premium R-60 blown-in fiberglass.

Serving Wheaton, DeKalb, Rockford & the far western suburbs

Call (815) 751-5772

No obligation. We typically respond within a few hours.

Know someone with a drafty home? Refer a friend and earn $200 off your next service. — Just mention it when you call.

Licensed & Insured

Locally Owned & Operated

Mon–Sat, 8am–8pm · Emergency On-Call

Fixed, Upfront Quotes

Our Premium 4-Step Attic Insulation Process

Most contractors stop at blowing in insulation. We start with the details that actually make the difference.

Comprehensive Air Sealing

We apply high-grade foam sealant to close gaps and cracks between your living space and the attic — stopping air leakage at its source before anything else.

Soffit Vent Cleaning

Clear, functioning soffit vents allow your home to “breathe” properly — preventing moisture buildup, mold risk, and ice dams in winter.

Baffle Installation

Baffles protect your roof by maintaining continuous airflow from the soffits to the ridge vent — a step many contractors skip entirely.

Premium R-60 Blown-In Fiberglass

Only after sealing and venting are verified do we blow in industry-leading fiberglass to achieve R-60 — the gold standard for energy efficiency in this climate.

Why Homeowners Choose Peak Performance

We’re not generalists. Insulation is all we do — and we do it right the first time.

Fixed, Written Quotes

The price we quote is the price you pay. No surprises after we’re in your attic.
Thorough Air Sealing First

Adding insulation over air leaks wastes money. We seal before we insulate — every time.
Roof-Protecting Venting

Proper baffles and clean soffits extend your roof’s lifespan — not just your comfort.
Emergency Availability

When winter hits hard, we’re reachable. On-call support when you need it most.

What Our Customers Are Saying

Real homeowners, real results — across the western suburbs.

    
 
 
       Posted on Google  
   
   Joe Bacha 
 
 
 
 Trustindex verifies that the original source of the review is Google. The guys did an excellent job. The crew was clean, efficient, and very professional throughout the entire process. They were respectful, easy to work with, and made sure the job site was thoroughly cleaned up when they were finished. We are very happy with the quality of their work and would highly recommend them.
  
 
      Posted on Google  
   
   Kimberly Walz 
 
 
 
 Trustindex verifies that the original source of the review is Google. Very happy with their work. Fantastic team- very professional and nice. They were very conscientious of clean up and protecting surrounding spaces as well .
  
 
      Posted on Google  
   
   CJC Properties 
 
 
 
 Trustindex verifies that the original source of the review is Google. they were very professional and friendly and did a great job! they also helped me move a door that I couldn't manage myself, we highly recommend this company!!
  
 
      Posted on Google  
   
   Frank S. and Pilvi I. 
 
 
 
 Trustindex verifies that the original source of the review is Google. Peak Performance Insulation does excellent work. The evaluation/estimate process was very clear and transparent (and honestly, very affordable). The work was superb. I would absolutely recommend them to anyone looking for insulation work.
  
 
      Posted on Google  
   
   Dan Schwartz 
 
 
 
 Trustindex verifies that the original source of the review is Google. We got several quotes for our attic insulation project.  We found Jace with Peak Performance to be very knowledgeable, honest and reasonably priced.  We scheduled the project, the Peak team showed up on time, finished in the timeframe they promised and did a full clean up.  We're really happy with the entire experience and have already recommended them to others.
  
 
      Posted on Google  
   
   George Lewerenz 
 
 
 
 Trustindex verifies that the original source of the review is Google. Very pleased with Peak Performance Insulation. Very good communication. Timely from start to finish. Very respectful of us and our home. Clean up was excellent.
I would highly recommend Peak Performance Insulation.
  
 
      Posted on Google  
   
   Devon Morno 
 
 
 
 Trustindex verifies that the original source of the review is Google. Professional and integrity is the best way to describe this contractor. Jace the owner personally came, quoted and completed the job. He gave us a simple solution to what we thought would be a complexed one. Highly recommend this contractor.  We are satisfied and will use him in the future if needed.
  
 
  
  
 
 
      Verified by Trustindex  Trustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more