Skip to main content

Seal Tech Insulation

Video answer · Seal Tech Insulation

Can Insulation Make My Home Quieter?

Yes.

✓ Answered by the Seal Tech crew✓ Serving SE Michigan since 2000★ 4.7 · 260+ Google reviews
Can insulation make my home quieter on a busy street?
Which spray foam is best for blocking noise?

The short answer

Yes. Noise travels through air, so sealing gaps and filling cavities stops a lot of it. Open-cell spray foam is especially good for everyday, higher-frequency household noise. Closed-cell foam does better with low rumbles from engines, trains, and buses.

What the crew says in the video

  • Insulation is one of the best ways to quiet a house. Noise transfers through air, and capturing that air and stopping its movement stops the noise.
  • All types of insulation have a sound-deadening property.
  • Open-cell is good for high-frequency noise: TVs and the everyday bustle of the house.
  • Closed-cell is better for lower-frequency noise like engines, trains, and buses.

Where noise gets in

Sound sneaks through the same gaps air does: around windows and doors, outlets, recessed lights, and through empty wall and ceiling cavities. Filling and sealing those paths is often the most cost-effective way to make a home noticeably quieter.

Matching foam to the noise

NoiseTypical sourceGood fit
Higher frequencyVoices, TV, music, household activityOpen-cell spray foam
Lower frequencyEngines, trucks, trains, buses, aircraftClosed-cell spray foam, plus mass and sealing

Best places to add it

  • Exterior walls facing a busy road or rail line
  • Bedroom and home office walls
  • Ceilings between floors
  • Media rooms and bathrooms

Live near Detroit Metro Airport or a major road? See our soundproofing page.

Seal Tech tip: Insulating interior walls during a remodel is the easiest time to add sound control.

Want a quieter home?

We will recommend the right foam for the noise you are dealing with.