Serving Evansville, IN and surrounding areas. (930) 212-1786

Hidden gaps in your attic, basement, and walls let conditioned air escape and Ohio River valley humidity pour in. We find and close those leaks, verify the results, and document the improvement before we leave.

Air sealing services in Evansville, IN find and close the small gaps, cracks, and openings where outside air sneaks in and conditioned air leaks out, typically in the attic floor, basement rim joists, and around plumbing and electrical penetrations — most jobs are completed in one day with no need to vacate your home. These openings are almost always invisible to the eye, but together they can act like leaving a window open year-round, which is why high bills and uncomfortable rooms often persist even after adding insulation.
A large share of Evansville's homes were built before 1980, when builders did not think much about sealing gaps. The result is that a typical older home here has dozens of unsealed penetrations that have never been addressed. Evansville's position in the Ohio River valley compounds this, because both the winter cold and the summer humidity press into every gap they can find, costing homeowners on both ends of the calendar.
Air sealing and insulation solve related but different problems. Insulation slows heat transfer through surfaces; air sealing stops air from moving through gaps around and behind those surfaces. For best results, we often recommend pairing air sealing with attic air sealing as a targeted first step, since the attic floor is where the largest share of air leakage occurs in most Evansville homes.
If your heating or cooling bills feel out of proportion to your square footage, especially during Evansville's hot July and August or during January cold snaps, air leaks are one of the most common culprits. A blower door test can confirm whether air leakage is the problem within a single visit, before any money is spent on a fix.
Hold your hand near an electrical outlet on an outside wall on a cold day. If you feel cool air moving, that outlet is connected to a gap that runs through the wall cavity to the outside. This is extremely common in Evansville homes built before 1970, where the wall framing was never sealed at the top or bottom plate.
If your air conditioner runs constantly but the house still feels muggy in July or August, outside air is likely getting in faster than your system can condition it. Evansville's Ohio River valley location means summer humidity is genuinely high, and a leaky home will feel it more than a tight one. Persistent indoor humidity can also lead to mold growth in wall cavities and attic spaces over time.
If snow melts faster in some spots on your roof than others, or if ice has built up along the eaves after a snowfall, warm air is escaping from your living space into the attic and heating the roof unevenly. This is a classic sign of air leakage at the attic floor, and it gets worse each winter while also creating the risk of water backing up under shingles.
We start every air sealing job with a diagnostic assessment, not just a visual inspection. A blower door test depressurizes your home and makes leaks easy to locate precisely, and many jobs also use infrared thermal imaging to reveal temperature differences in walls and ceilings that show where air is moving. This step is what separates a thorough job from a contractor who just sprays foam around a few obvious spots and calls it done.
The sealing work itself focuses first on the attic floor, where the largest air leaks hide around light fixtures, plumbing pipes, and the tops of interior walls. Basement rim joists, the area where the house framing meets the foundation, are the second most common source. We use spray foam, caulk, and rigid foam board depending on the location and size of each gap. For homes also looking to improve basement insulation, combining that work with rim joist sealing in a single visit is the most efficient approach.
We close the job with a final blower door test that gives you before-and-after numbers, and we walk you through everything that was done. If we notice additional items, such as inadequate attic insulation or signs of moisture in the crawl space, we flag them so you have the full picture before deciding on next steps.
Best for older Evansville homes where no professional sealing has ever been done; we assess and seal all major leak points in a single project.
Targeted sealing of the attic floor, where the biggest leaks hide around penetrations, ideal as a standalone project for homes where the attic is the primary problem area.
Closes the gap between the house framing and the foundation wall, the second most common air leakage point in Evansville's older housing stock.
Available as a standalone assessment to measure your home's current air leakage rate and identify where the largest leaks are before committing to a scope of work.
Evansville sits in a climate zone that pushes your HVAC system hard in both directions year-round. Summers in the Ohio River valley are hot and genuinely humid, with outdoor humidity regularly making the indoor air feel muggy if even small gaps exist. Winters bring sustained cold and occasional ice storms. That means every unsealed gap is costing you money in July and again in January, with no reprieve. Homeowners in more moderate climates deal with this problem on one end of the calendar; Evansville homeowners deal with it on both.
A large portion of Evansville's housing stock, particularly in the Haynie's Corner area, along the West Side, and in neighborhoods built in the 1940s through 1960s near the Lloyd Expressway corridor, has never had professional air sealing. These homes were built when "breathing" was considered a feature, not a problem. The U.S. Department of Energy estimates that air leaks account for 25 to 40 percent of the energy used for heating and cooling in a typical home, and older homes without any air sealing history tend to sit at the high end of that range.
We work throughout Evansville and serve customers in nearby communities as well. If you are in Owensboro, KY, Vincennes, IN, or Jasper, IN, the same climate pressures and older housing stock create the same air leakage problems, and we bring the same diagnostic standards to every job.
We respond within 1 business day. We ask about your home's age, square footage, and what prompted you to call, so we can come prepared with the right equipment and give you a realistic sense of what the visit will involve.
We walk your attic, basement or crawl space, and living areas to identify where air is most likely moving in and out. Many jobs include a blower door test, which depressurizes the house and makes leaks easier to detect precisely. This assessment, typically one to two hours, is the foundation for the written estimate you receive.
The crew works systematically through the areas identified in the assessment, using foam, caulk, and rigid foam board to close gaps. Most of the activity happens in the attic and basement, not in your living areas. You can stay home during the work, and most standard Evansville homes are complete in one day.
A thorough contractor runs a final blower door test after the work is done to show you the before-and-after numbers, giving you concrete proof the job worked. We walk you through what was done, answer questions, and flag anything else we noticed during the job that you should be aware of.
We respond within 1 business day. No obligation. We run a blower door test before quoting so you know exactly what you are paying for.
(930) 212-1786We verify results with blower door testing before and after the job. The post-job numbers are yours to keep as proof the work reduced actual air leakage, not just a contractor's word for it.
We serve Evansville and 11 surrounding communities in two states. Whether you are in Evansville's West Side neighborhoods or further out in Henderson or Jasper, we understand how the local climate and older housing stock create the same air leakage challenges.
Most homeowners assume drafts come from windows and doors, but the biggest leaks in Evansville homes are in the attic floor and basement rim joists. We focus there first because that is where the most energy is being lost, not just the places that are easiest to reach.
Both CenterPoint Energy and AES Indiana serve Evansville and have offered rebate programs for qualifying energy efficiency work. We stay current on what is available so you do not miss out on programs you qualify for. See Building Performance Institute for the standards behind professional home performance work.
Air sealing is an investment that pays back through lower utility bills every month for as long as you own the home. In Evansville, where both the heating and cooling seasons push the system hard, the payback period is shorter than in milder climates. Every job we complete comes with documented before-and-after results so you can see exactly what changed, not just feel it.
After sealing air gaps, insulating your basement walls and rim joists is the next step to cut energy loss from below.
Learn moreThe attic floor is the single biggest source of air leakage in most Evansville homes, and targeted attic sealing delivers the largest portion of the total energy savings.
Learn moreFall appointments fill quickly as homeowners prepare for heating season. Book now to get ahead of the rush and have your home sealed before winter energy bills arrive.