The cost to soundproof a car depends on a handful of factors.

Cost to soundproof a car, truck, suv or van

As we mentioned earlier, there are two types of noise in a vehicle.

• Structural noise is the vibrating metal components. We have two go-to products to damp those vibrations: Damplifier Pro sound deadening mat or Spectrum liquid deadener. Both score extremely well in NVH testing and are absolutely necessary. Appy them to as much metal as you are able. Stop the vibrations, stop the noise. We also recommend staying away from cheap alternatives like peel and seal sound deadening mats.
• Airborne noise is the road, engine, exhaust, and loud tire noise. To stop airborne noise, you have to block it with an automotive sound barrier. Luxury Liner Pro is designed to be incredible at blocking noise, and would be installed with 100% coverage on the cabin side firewall, floor, and trunk.

If you combine Damplifier Pro and Luxury Liner Pro together in a vehicle, you’ll reduce the noise level when traveling at highway speeds by 10-15 db. It’s an incredible combination, and we sell the two materials together in our Vehicle Build Kits.

You’ll notice – nowhere in this plan did we talk about foam. Sound deadening foam is excellent when combined with Damplifier Pro in the doors, on the roof, and behind plastic panels. We use OverKill Pro or Mega Zorbe depending on the situation.

Parts of the car to soundproof

If you just want to focus on soundproofing one part of your vehicle, we also have kits for specific vehicle parts that have everything you need in them, including accessories like tape, spray adhesive, and a hand roller.