John Smith

 Owne

Air Sealing Services

Air Sealing Services in Chicagoland
Stop Losing 20–30% of Your Heated & Cooled Air Through Hidden Leaks

Most homes leak conditioned air like a sieve. Tiny, invisible gaps around recessed lights, attic hatches, wiring, plumbing penetrations, top plates, and dropped soffits add up fast — often to the equivalent of leaving a window wide open 365 days a year. That wasted energy shows up as higher bills, uneven temperatures, dusty rooms, and even ice dams. At The Attic Genius — part of the Clean Genius family with over 25 years of specialization and 400+ combined five-star reviews across our companies — air sealing isn’t an afterthought. It’s the foundation of every comfort and energy-saving project we do.

We’ve sealed homes and businesses from Arlington Heights to Naperville, Lake Zurich to Lake Geneva, WI, and everywhere in between. The results speak for themselves: dramatically lower utility bills, quieter living spaces, and healthier indoor air.

Call 847.200.8888 for your Free Air Leak Inspection & Quote

Why Air Sealing Matters More Than You Think

The U.S. Department of Energy consistently ranks air sealing as the 1 most cost-effective energy upgrade — even ahead of adding new insulation. When your home is leaky, your furnace and air conditioner are constantly fighting outdoor air that’s rushing in through the attic. Sealing those leaks first means your heating, cooling, and insulation systems finally work together the way they were designed to.

The payoff is immediate and long-lasting:

– Heating & cooling bills drop 10–30% (many customers see the difference on their very next statement) 

– Every room stays the same comfortable temperature — no more freezing bedrooms or scorching second floors 

– Less dust, pollen, pests, and outdoor noise 

– Far fewer ice dams and moisture problems in winter 

– Your existing or new insulation performs at 100% instead of 60–70% 

Without professional air sealing, even the thickest, most expensive insulation is only partially effective — like putting on a heavy coat in a windstorm.

Our Professional Air Sealing Process

We don’t just dab a little caulk and leave. Every air sealing job follows the same proven, clean, and guaranteed process that has earned us hundreds of 5-star reviews:
01
Free Comprehensive Air Leak Inspection
Using blower door testing, infrared cameras, and theatrical fog when helpful, we pinpoint every leak — even ones hidden behind drywall or missed by previous contractors.
02
Whole-Home Protection
We treat your home better than our own: drop cloths, shoe covers, protective runners, and HEPA-filtered equipment keep everything spotless.
01
Seal Every Leak — Top to Bottom

   – Recessed can lights → fire-rated covers & sealant 

   – Attic hatches & pull-down stairs → fully weatherstripped and insulated covers 

   – Top plates & partition walls 

   – Plumbing, electrical, and duct penetrations 

   – Chimney chases and flue pipes 

   – Dropped soffits, knee walls, and bonus-room floors 

02
Final Quality Check & Proof
We run post-sealing blower door numbers and infrared scans so you can see the improvement in writing.
All materials are fire-rated, low-VOC, and code-compliant. Every job backed by our written 10-year workmanship warranty.

Perfect on Its Own — Essential with New Insulation

Hundreds of customers choose air sealing as a stand-alone service and are amazed at the comfort difference and lower bills within weeks. But if you’re planning new attic insulation (or already have decent insulation), doing air sealing first is the smartest money you’ll ever spend — it routinely doubles the effectiveness and payback of the insulation itself.

Signs Your Home Needs Air Sealing Right Now

– Energy bills that keep climbing no matter what you set the thermostat to 

– Dusty rooms that need constant cleaning 

– Large icicles or ice dams every winter 

– Cold floors or drafty rooms 

– You can feel air moving or see daylight around your attic hatch 

– Whistling sounds from recessed lights when it’s windy 

If any of these sound familiar, you’re literally paying ComEd and Nicor to heat and cool the outdoors.

Proudly Serving the Entire Chicagoland Region & Southern Wisconsin

Arlington Heights • Mount Prospect • Palatine • Schaumburg • Hoffman Estates • Barrington • Buffalo Grove • Long Grove • Lake Zurich • Vernon Hills • Libertyville • Crystal Lake • Elgin • St. Charles • Geneva • Naperville • Wheaton • Glen Ellyn • Downers Grove • Des Plaines • Park Ridge • and all the way up to Lake Geneva, WI — and beyond.

Stop Wasting Energy — Start Saving Today

Get Your Free Air Sealing Inspection & Detailed Quote

Takes less than an hour, costs nothing, and shows you exactly how much money is escaping your home right now.

Same-day and next-day appointments available*

We look forward to making your home tighter, quieter, and far less expensive to heat and cool.

The Attic Genius Team
Part of The Clean Genius Family of Companies