Air sealing services in Evansville IN - the leaks closed before the insulation goes on
Drafty rooms, a hot upstairs and a power bill that keeps climbing? We find the gaps and close them so your insulation can work.

Why is my house still drafty with insulation in the attic?
Air sealing services in Evansville close the gaps where air leaks in and out of your house. We start in the attic, because leaks into the attic matter most, and once they're sealed the insulation up there stops fighting a draft.
Most calls start with a hot upstairs, cold floors or a power bill that won't come down in an older house, and the attic insulation usually looks fine from the hatch. The price moves with how many gaps there are, how easy your attic is to get around in and whether old material has to come out first. The schedule turns on what the first look finds, since a roof leak or old wiring gets fixed before we seal anything. Your own figure comes from the estimate, once we've seen your attic.
How our air sealing service works
We look before we seal anything. Up in the attic we check for live knob and tube wiring, a leaking roof, bath fans blowing straight into the attic and old insulation that needs testing, because sealing over any of those just hides the problem. A tighter house may need fresh air brought in on purpose with a fan, so I bring that up at the estimate, where you can plan and budget for it, and not after the bill. Then we close the gaps around can lights, pipes, wires and the attic hatch, which is where most attics leak like a screen door. We leave the soffit, ridge and gable vents alone, along with any duct that feeds combustion air to a furnace or water heater, because those openings are meant to move air and your house needs them working.
Sealing often goes with other work. The top of the basement wall, where the house sits on the foundation, is a common leak, and we can close it while we handle basement insulation. Closed-cell foam insulation, a dense foam that also blocks moisture, seals and insulates in one pass but costs more. I usually point people to sealing the gaps and topping up loose fill, unless your ductwork runs through the attic, where foam earns its price.
Why Evansville homeowners call A&B Evansville Insulation Services for air sealing
I write your estimate myself
I come out, go up in the attic and write the estimate, and then our own crew does the work, with me on most of those jobs. The person who saw your attic is the one making sure it gets sealed the way we said.
Licensed for Evansville building work
Evansville and Vanderburgh County require a licensed contractor for work on buildings, and that license takes a written exam and an experience check. We're fully licensed and insured, and you're welcome to ask for proof of insurance before we start.
Started in 2023 to seal first
I came back to the trade in 2023 and started this business after seeing how often the leaks got skipped and the insulation just got piled on top. If your roof or wiring needs fixing before we seal, I'll tell you that instead of selling you work that won't help.
On this job the order matters more than the material, so start with someone who looks first. Every job is backed by our satisfaction guarantee. Call (812) 205-2872 or request an estimate, and mention it if you already know about vermiculite or a bath fan venting into the attic.
Get a free on-site air sealing estimate
Send the form and we'll reply within one business day to set a time. I come out, look at your attic and write the estimate myself, and there's no obligation to book. Tell us where the attic hatch is and anything you know is up there, because it saves a step.
Air sealing and attic work
Questions before you book air sealing
What is the best way to stop drafts, more insulation or air sealing?
Air sealing comes first, because new insulation alone won't stop drafts. Blown cellulose and blown or batt fiberglass slow heat but let air move right through, so piling more on leaves the leaks open. Sealing is its own step, and the insulation goes on after.
How much does air sealing cost in Evansville?
There's no fair number until we've seen your attic, because the price comes from what's up there. More gaps, a tight attic to crawl through, old insulation that has to come out, repairs found on the first look and added ventilation all push it up, while an open attic with a few big leaks keeps it down. The estimate gives you your own figure.
How much could I save on my power bill with air sealing?
ENERGY STAR estimates that sealing and insulating together can save up to 20% on heating and cooling costs, which works out to up to 10% of a home's total yearly energy bill. That's an upper figure for doing both jobs, not a promise, and sealing alone isn't what it measures.
Do I need a permit for air sealing in Evansville?
The city's list doesn't settle it, so we ask before work starts. The Building Commission issues building permits, which are needed before any alteration to a structure, and its list names windows, doors and drywall but not air sealing. Each city and county has its own building office, so we check with the one that covers your address and handle the permit when the job calls for one, and the inspection checks the work against Indiana and local safety codes.
How do I air seal my own house in Evansville without a contractor license?
The city can issue a permit without the usual license to an owner, or immediate family, working on the home they live in now. If you go that way, the check for wiring, roof leaks and vented bath fans still comes first, and the vents meant to stay open stay open. Plenty of people handle the easy gaps themselves and call us for the attic.
How do I deal with vermiculite in my attic before air sealing?
Get it tested first. One national guide says vermiculite insulation, the gray-brown pebbly kind, may contain asbestos and must be tested before the attic is sealed and insulated, and it points owners to the State Department of Health for advice. We look for it on the first visit, and if it's up there, the testing comes before any sealing.
Work that often goes with air sealing
- Basement insulation
If the floors stay cold and the basement feels damp and drafty, insulating down there finishes what sealing starts.
- Closed-cell foam insulation
When ductwork runs through the attic or a space needs moisture held back, dense foam seals and insulates in one go.




