Sound Deadening Experts
Commercial Vehicle Soundproofing
Based in Coolum, Sound Deadening Sunshine Coast provides specialised thermal and acoustic insulation solutions for the modern workforce. We transform standard vans, 4x4 dual-cabs, and light trucks from "tin-can" workhorses into refined, climate-controlled mobile offices.
By utilising advanced multi-stage dampening and heat-shielding technology, we help Sunshine Coast businesses reduce driver fatigue, meet rigorous OHS noise-exposure standards, and protect vehicle assets from extreme Queensland heat. From Isuzu N-Series trucks and Toyota HiAce fleets to the heavy-duty 79 Series LandCruiser, we deliver the precision fit-outs required to keep your team safe.
Our Services
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Commercial Utes (Single & Duel Cab)
Models: Toyota HiLux, Ford Ranger, Isuzu D-Max, Mitsubishi Triton.
The Benefits: Mobile Office: Clearer Bluetooth calls by removing road and wind roar. Fatigue Reduction: A quieter cabin means more focus during long site commutes. Floor Cooling: Massive reduction in heat soak through the transmission tunnel

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70 Series Landcruisers
Models: Single Cab, Dual Cab, Wagon, and Troopy.
The Benefits: Heat Shielding: Eliminates the notorious V8 engine and gearbox heat-soak. Drone Control: Stops the high-decibel exhaust and engine hum at 100km/h.Refinement: Turns an agricultural workhorse into a premium touring machine.

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Commercial Van & Transport (LWB & SLWB)
Models: Toyota HiAce, LDV Deliver 9, Ford Transit, Mercedes Sprinter.
The Benefits: Echo Elimination: Stops the "tin-can" resonance in the large rear cargo area. Climate Control: Thermal layers keep cargo and drivers cooler in QLD sun. Noise Dampening: Removes the vibration from large side panels and wheel arches.

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Service Wagons & Fleet SUVs
Models: Toyota Prado, Ford Everest, Isuzu MU-X.
The Benefits: Project Lead Comfort: Provides a luxury-car feel for site supervisors. Road Roar Removal: Targets the rear wheel arches to stop highway noise. Asset Protection: Increases resale value by protecting the factory interior.

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Light Truck & Cab-Over (Isuzu/Hino)
Top Models: Isuzu N-Series (NPR/NLR), Hino 300, Fuso Canter.
The Benefits: OHS Compliance: Drops decibel levels to safer, legal operating standards. "Dog Box" Insulation: Heavy-duty thermal barriers directly over the engine. Operator Safety: Dramatically reduces heat-stress for multi-drop drivers.

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Land Rover Defenders
Top Models: Defender 90, 110, 130 (L663) and Classic County/Perentie.
The Benefits: Acoustic: Silences the intense tyre roar and mechanical drone Heat : Blocks heat from the transmission tunnel and firewall. Thermal Efficiency: Keeps the cabin cooler

Our Process
We exclusively utilise premium, multi-stage kits from Car Builders Australia to ensure your vehicle receives the highest grade of acoustic and thermal protection available. Specifically engineered for the harsh Australian climate, these products don't just dampen sound—they are designed to withstand extreme cabin temperatures without failing or smelling. By using their specialised Butyl vibration mats and multi-layer thermal liners, we provide a professional-grade finish that outperforms standard factory insulation and lasts the life of your vehicle.
Stage 1: Vibration Damping (The Foundation)
We apply a high-grade, adhesive Butyl Damping Mat directly to the sheet metal. This stops the "tin-can" effect by neutralizing panel resonance and structural vibration. It turns a thin, vibrating metal panel into a solid, inert surface
Stage 2: Acoustic & Thermal Insulation (The Barrier)
On top of the damping mat, we install a secondary layer of Mass Noise Liner or Closed-Cell Foam. This stage is critical for blocking airborne noise (engine roar and tyre sing) and acting as a heavy-duty thermal shield against transmission tunnel and exhaust heat.
Stage 3: Specialised Enhancements (The Finish)
To complete the cabin environment, we apply specialised products like Van Liner for large panels, Acoustic Liner for roof skins to stop rain noise, and Knocker Liner for wheel arches. This final stage ensures every specific "weak point" in your vehicle's design is fully sealed and insulated.
Additional options:
While your cabin is stripped, we can seamlessly integrate professional technology upgrades with zero permanent modification to your vehicle:
Vhedia Smart Screens: Wireless CarPlay & Android Auto for seamless navigation.
Premium Audio: Bolt-in speaker upgrades for crystal-clear communication.
Safety Tech: High-definition reverse cameras and integrated dash cams.
“Didn’t have time to install the Car Builders kit myself so it was great to lean on these guys to get it done. ”

