5–8
Typical leak points sealed per attic
Same-week
Scheduling across the Indy metro
R-38–R-49
Target attic performance after sealing + top-off
How we approach air sealing
We treat air sealing as its own trade, not a five-minute add-on before we load insulation into the attic. Every job starts with our crew walking the space by hand: top plates, wiring and plumbing penetrations, the attic hatch, and flagging each gap with tape before any material goes down.
We seal what we find - caulk, foam, and weatherstripping matched to the material and location before insulation goes back over the top. It's why we pair the two on every attic job we run: we've seen sealing without insulation still lose heat through bare material, and insulation without sealing still let air bypass it entirely.
If you searched air sealing contractors near me and landed here, this is the service on its own: a dedicated assessment and sealing visit from our team, separate from a full insulation top-off, for homeowners chasing a specific draft, a stuffy upstairs, or a blower-door result that came back high.
Where Indianapolis attics actually leak
These are the six spots our crews check first on almost every job, mapped in the diagram above.
Top plates & wall/ceiling joints
We check this line first on every job. Where interior walls meet the attic floor is usually the largest continuous gap we find.
Attic hatch & pull-down stairs
We rarely find these weatherstripped from the factory, and it's one of the fastest fixes we do with the biggest comfort payoff.
Recessed (can) lighting
On older fixtures, we treat every can light as an open path into the attic until it's rated and boxed for sealing.
Plumbing & wiring penetrations
We trace every pipe and cable run through the top plate, since each one leaves a gap around the penetration itself.
Rim joists
We check the full band around your foundation perimeter, the source behind most of the cold-floor calls we get.
Switch plates & outlets
Small on their own, so we tally them across every exterior wall rather than treat them as an afterthought.
How an air sealing visit works
Diagnosis first, then sealing, then a check that confirms it worked. Every visit follows the same order.
1
Assess
Free in-home leak assessment
We walk the attic, crawl space, and rim joist perimeter, checking existing insulation depth and flagging every penetration and joint that's leaking conditioned air.
2
Quote
Written, no-obligation quote
You get a specific list of what we found and what it takes to seal it, priced before any work starts, not a vague estimate.
3
Seal
Seal every flagged gap
Caulk, canned foam, and weatherstripping applied by material and location, using rigid foam board and mastic at large gaps, and fire-rated sealant near fixtures and flues.
4
Confirm
Walkthrough & verification
We walk the attic with you to confirm every flagged point was addressed, and note whether an insulation top-off is worth doing in the same visit.
Why homeowners seal before they top off insulation
Lower heating and cooling bills
Fewer leaks means less conditioned air escaping and less outside air pulled back in.
Fewer drafts, more even temperatures
Rooms that ran cold in winter or hot in summer even up once the paths for outside air are closed.
Less HVAC cycling
Your system runs shorter, less frequent cycles instead of fighting a constant draw of unconditioned air.
Better moisture control
We seal the paths humid or cold air use to move through your attic, the same movement that drives condensation and mold risk if it's left alone.
Makes your insulation actually work
Any insulation we install still gets bypassed by moving air until we seal the gaps around it first, which is why we won't do one without the other.
A defined, one-visit scope
We quote sealing as its own job with a specific list of what we found, so you know exactly what our crew is doing before they show up.
Recent project: Meridian-Kessler
A Cape-style home with a partially settled attic and one noticeably cold upstairs bedroom. We sealed six leak points, including the attic hatch, two top-plate runs, and three recessed lights, ahead of a blown-in top-off. The homeowners reported the bedroom evened out with the rest of the floor within the first week.
Frequently asked questions
Ready to find out where
your home is leaking?
Free in-home assessment. Written quote before any work starts. Same-week scheduling across the Indy metro.