What Our Attic Air Sealing Service Includes
We match the sealing method to the type of gap rather than treating every opening the same way.
- Caulk and foam sealing: For smaller gaps around wiring, plumbing, and other penetrations, we use professional-grade caulk or expanding foam sized to the opening.
- Air barrier installation: Larger openings get a solid barrier paired with sealant, since sealant alone will not hold up over a bigger gap.
- Attic hatch weatherstripping: We seal and weatherstrip attic access points, one of the most commonly overlooked sources of air loss.
- Duct connection sealing: Where ductwork meets the attic floor or equipment, we seal joints that standard HVAC service often leaves untouched.
Combining these methods in one visit gives your attic a more complete air barrier than addressing a single leak type on its own.
Why Air Sealing Comes Before Insulation
Insulation slows heat transfer, but it does not stop air from moving through open gaps. If those gaps stay open, air continues to bypass the insulation entirely, which is why we always recommend air sealing before attic insulation installation or any insulation upgrade. Homes that skip this step often see less improvement than expected, even after spending on brand new material.
Common Places Air Escapes in Your Attic
These gaps are usually hidden above the insulation line, which is why they go unnoticed for years:
- Electrical and plumbing penetrations: Wiring and pipes that pass through the attic floor often leave small gaps around the opening.
- Recessed lighting fixtures: Older fixtures in particular can create a direct path for air to move between rooms and the attic.
- HVAC duct connections: Joints where ductwork meets the attic floor or equipment are common leak points.
- Top plates and framing joints: The seams where walls meet the attic floor are easy to overlook but add up across a whole house.
- Attic hatch openings and exhaust fan housings: These access points rarely seal as tightly as the rest of the attic floor.
Any one of these on its own might seem minor, but together they can account for a significant share of a home’s energy loss.
How We Approach Every Air Sealing Project
We start with an inspection to map out where your attic is actually losing air, rather than sealing at random. From there, our technicians work through each leak point identified during the inspection, applying whichever sealing method fits the gap in front of them. Most projects wrap up in a single visit, and we finish with a final check of every sealed area to confirm the work will actually perform once we are done, not just look sealed on the surface.
Why Homeowners Choose Us for Air Sealing
Air sealing only works if it is done thoroughly, not just around the obvious gaps.
- Attic specialists, not generalists: We focus specifically on attic performance, so we know how air movement, insulation, and ventilation all interact.
- Material matched to the gap: We do not use one product for every leak. Caulk, foam, and barriers each get used where they actually perform best.
- Straightforward process: Most air sealing projects wrap up in a single visit, with a final inspection before we call the job done.
- One-year workmanship warranty: If a sealed area fails to hold up, we come back and fix it.
Air sealing pairs especially well with other attic work, and it is common for us to handle it alongside insulation upgrades, rodent proofing, or a full attic cleaning in the same visit.
If drafts, high bills, or an air conditioner that never seems to catch up sound familiar, schedule your free inspection and we will find out exactly where your attic is losing air.
