Air Sealing in Rochester, NY for a More Comfortable Home
Call for an Air Sealing Inspection If You Notice These Problems
Most homeowners don't think about air sealing until something tips them off. These are the signs we hear about most.
- Rooms that never quite match the thermostat setting, especially upstairs bedrooms or rooms above the garage
- A heating bill that keeps climbing even though the furnace is newer
- Cold floors near the foundation, particularly in finished basements
- Drafts you can feel near outlets, baseboards, or the attic hatch on a windy day
- A musty smell or extra dust that seems to come from nowhere, especially near the basement or attic
- Your furnace or AC running almost constantly, like it can't keep up
- Ice dams forming along the roofline
If even one or two of these sound familiar, it's worth getting the house looked at before another heating or cooling season makes the problem worse.
What Air Sealing Service Includes
We walk through the home and find where conditioned air is actually getting out, not just where people assume it is. From there, the work usually includes:
- Sealing the attic hatch or access panel, which is one of the most overlooked leak points in older Rochester homes
- Closing gaps around rim and band joists near the foundation
- Sealing penetrations where plumbing and electrical lines pass through walls, floors, and ceilings
- Addressing recessed lighting fixtures that aren't properly sealed against the attic above
- Checking that the home still has enough fresh air exchange once the obvious leaks are closed, so sealing improves comfort instead of making a house feel stuffy
Closing these gaps does more than cut your energy bill. It also keeps outside dust, pollen, and humidity from working their way into the house, which is part of why air sealing often comes up during our free home energy audit too. Every home is different, so the exact mix of work depends on what we find during the inspection.
Why Homes Lose So Much Energy Through Air Leaks
Heat naturally moves upward, and in a house with unsealed gaps, that rising warm air finds its way out through the attic and upper levels. As it leaves, it pulls cold outside air in through gaps low in the house, like the basement, crawl space, and rim joists. HVAC people call this the stack effect, and it explains why a home can have a brand new furnace and still feel drafty in every room except the one with the vent in it.
That constant pulling and escaping is also where the EPA's 25% to 40% figure comes from, since that's how much of a typical home's heating and cooling energy gets lost through air leaks like these rather than through the walls or windows most people blame first. Pair air sealing with insulation work, and ENERGY STAR's research puts the average homeowner savings at around 15% on heating and cooling costs once both are done together.
Blown-In Insulation
Blown-in insulation is the most common choice for attics that already have some insulation in place. It fills gaps and uneven spots easily, and it's usually the fastest way to bring an attic up to the recommended R-value.
Batt Insulation
Batt insulation comes in rolls and fits well in open attics with few obstructions. It's a solid option when the attic is easy to access and doesn't have a lot of pipes, vents, or wiring to work around.
Spray Foam Insulation
Spray foam creates the tightest seal of the three. It insulates and blocks air movement in a single step, which makes it a strong choice for attics with a lot of small gaps and air leaks. It costs more than blown-in or batt insulation, but it does more work in the same space.
Common Places Rochester Homes Actually Leak Air
"Hidden leaks" is the phrase a lot of companies use, but the leaks aren't really hidden. They're just in spots nobody checks.
The attic hatch is one of the biggest. It's basically a hole in your ceiling with a loose-fitting cover, and most homes have never had it sealed. Rim and band joists, the wood framing where your foundation meets your first floor, are another major one. Recessed lighting fixtures often have small gaps around the housing that connect straight into the attic. And anywhere a plumbing pipe, gas line, or electrical wire runs through an exterior wall or floor, there's usually a gap around it that was never sealed during construction.
None of these require tearing into a wall to find. They just need someone who knows where to look.
Common Places Rochester Homes Actually Leak Air
- First, we walk the house and find the specific spots where air is getting in and out, not a generic checklist.
- Before any work starts, you get a plain-language rundown of what we found and why it matters.
- Sealing comes next, using the right material for each spot, foam, caulk, or weatherstripping depending on where the gap is.
- Ventilation gets checked too, so the house still breathes the way it should once those leaks are closed.
- Last, we'll talk through what to expect for comfort and energy use going forward.
Air Sealing and Insulation Work Better Together
Insulation slows heat from moving through your walls, attic, and floors. Air sealing closes the actual openings where conditioned air escapes and outside air sneaks in. Insulation without air sealing first is a little like putting on a heavy coat that's unzipped. It helps, but not as much as it could.
If you've already had attic insulation installed or you're planning to upgrade it, air sealing is usually the first step. It helps ensure the insulation added afterward performs the way it's supposed to.
Why Homeowners Choose Crossfield Heating & Air Conditioning for Air Sealing
- Over 30 years serving homeowners in Webster, Rochester, and the surrounding counties, since 1993
- A 4.9-star rating across more than 1,000 customer reviews
- A participating EmPower+ contractor, which can open up rebate options on qualifying upgrades
- We help homeowners look into RG&E and NYSEG rebates as part of the process, not as an afterthought
- One local team, not a call center, answering questions about your specific home
Need Air Sealing Help Now?
If your house has felt drafty for a while, or your energy bills have been creeping up without an obvious reason, air sealing is usually one of the most affordable ways to fix it. We'll come out, find the actual problem spots, and tell you honestly what needs attention.
