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
Get Your Free Insulation Estimate
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.
Photo: Completed Project
Why Homeowners Choose Peak Performance
We’re not generalists. Attic insulation is all we do — and we do it right the first time.
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Fixed, Written Quotes
The price we quote is the price you pay. No surprises after we’re in your attic.
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Thorough Air Sealing First
Adding insulation over air leaks wastes money. We seal before we insulate — every time.
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Roof-Protecting Venting
Proper baffles and clean soffits extend your roof’s lifespan — not just your comfort.
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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.
“Our heating bill dropped significantly the first winter after the job. They were clean, professional, and finished faster than expected. Worth every penny.”
“No high-pressure sales tactics. They came out, explained exactly what needed to be done and why, and gave me a written quote on the spot. That’s what got my business.”
“Three other contractors didn’t even mention air sealing. Peak Performance explained the whole process before touching anything. I could tell they actually knew what they were doing.”
See the Peak Performance Difference
Before-and-after results from real projects across the western suburbs.
Ready to Stop Losing Heat Through Your Ceiling?
Free estimates, honest quotes, and work you can actually see the difference in.