Insulation · Woodward, IA

Air Sealing in Woodward, IA

Insulation without air-sealing is a screen door on a submarine. Most Iowa homes leak more conditioned air than the insulation R-value would suggest, and a proper air-seal can cut heating bills more than adding inches of insulation would.

Call 515-204-3138 → Shield My Home →

The short version

Closing the hidden leaks where your conditioned air escapes the attic and walls.

Insulation without air-sealing is a screen door on a submarine. Most Iowa homes leak more conditioned air than the insulation R-value would suggest, and a proper air-seal can cut heating bills more than adding inches of insulation would. We do this work across Dallas, Polk, Boone, and Story counties on homes that range from 100-year historics to last-year new construction. Every job starts with the same walkthrough, quote, and written scope.

The air sealing work we do is not a sub-contractor arrangement. Christian runs it, his crew installs it, and the invoice has one name on it. That matters for warranty claims, for callback response, and for accountability when something needs attention after the job closes.

What’s included

Every air sealing job covers this.

01

Top plate sealing

Where interior walls meet the attic, every top plate has gaps. We foam-seal them so conditioned air stops rising straight into the attic.

02

Recessed light covers

Can lights leak air unless they are IC-rated and sealed. We install air-tight covers and foam the perimeter.

03

Plumbing and wiring penetrations

Every pipe and wire into the attic is a small hole. Individually minor, collectively the biggest air leak in most homes. All foam-sealed.

04

Chase and soffit sealing

Open framing chases (fire-stopped but not air-sealed) behave like chimneys. We close the tops with rigid foam and seal the perimeter.

05

Attic hatch weatherstripping

An un-weatherstripped attic hatch leaks more than a 6-inch hole in the ceiling. We weatherstrip, add a gasketed cover, and insulate the top of the hatch.

06

Blower-door verification

Before-and-after blower-door tests show quantitatively how much we reduced air leakage. Most air-seal packages drop the CFM50 number by 30-50%.

Air Sealing · FAQ

Questions we hear about air sealing.

Is air-sealing more important than insulation?

In an under-insulated AND leaky home, insulation has higher ROI. In a reasonably insulated but leaky home, air-sealing has higher ROI. Most real homes benefit from both, and we usually recommend they be done together.

What is a blower-door test?

A calibrated fan mounted in your front door that depressurizes the house to a standard pressure. The fan’s CFM reading at that pressure measures how leaky the house is. Before-and-after readings quantify the improvement.

How much can air-sealing save me?

Typical air-seal package on an Iowa home cuts CFM50 leakage by 30-50%. Heating bill impact is usually in the 10-20% range, varying by home age, HVAC, and habits.

Is there a downside to air-sealing?

A house that is air-sealed too tight may need controlled mechanical ventilation (ERV or HRV) to maintain indoor air quality. For most older homes, there is plenty of headroom before this becomes an issue. We will tell you if your home is approaching that threshold.

Do I need to air-seal before adding insulation?

Yes. Blowing insulation over unsealed penetrations wastes a significant portion of the new R-value. We air-seal as part of every insulation upgrade we do.

Ready for a real number?

Free air sealing quote.

Call and we will come out, measure, and write a real scope. No deposit, no pressure, no guilt-trip if you go another direction.

Call 515-204-3138 →Shield My Home →