Door Soundproofing That Fixes Everyday Driving Pains Tired of the tin-can door rattle, tyre roar, and shouty conversations? Our professional door soundproofing turns your doors into solid, sealed speaker enclosures—so the cabin is calmer and your music finally sounds like it should.
The Pains We Solve
Loud road & tyre noise coming straight through thin door skins.
Door panel rattles & buzzes that ruin music and feel cheap.
Weak bass and muddy mids because the door isn’t sealed like a proper enclosure.
Summer heat through hot metal and winter chill leaking in.
Water leaks, wind hiss, and trim squeaks after DIY jobs or factory gaps.
Added weight worry—hinges and struts working harder than they should.
The Benefits You’ll Notice Immediately
Quieter cabin: Less roar and hum at city and highway speeds, easier conversation, less fatigue.
Stronger, tighter bass: Substantial improvement to door speaker punch; mid-range clarity returns.
Premium “solid door-thud” feel: The whole car feels more expensive and put-together.
Better climate comfort: Doors transmit less heat in summer and retain warmth in winter.
No rattles: Panels, clips, and trims are decoupled and stabilized.
Lightweight by design: We use non-bitumen, high-temp STP materials to protect hinges and actuators.
What We Do (The Proven 3-Layer Method)
Vibration Damping (Outer Skin): Precision-cut sheets on the metal skin kill panel resonance and “drum” effect.
Sealing & Reinforcement (Inner Skin): Service openings are sealed with lightweight aluminum-backed panels and butyl—creating a rigid, air-tight speaker baffle for real bass.
Acoustic Decoupling (Trim Side): Closed-cell foam and absorbers stop squeaks, block airborne noise, and prevent re-radiation through the trim.
Result: less noise in, less noise re-radiated, and a door that finally works with your speakers—not against them.
Safe, Lightweight, Built for Australian Conditions
Non-bitumen, odorless, high-temperature adhesives that don’t slump in summer.
Water management preserved: Drain paths remain clear; we don’t create moisture traps.
Airbags, wiring, and locks respected: Factory systems remain accessible and untouched.
Weight kept sensible: Typical increase ~1–2.5 kg per door depending on model and package.
FAQs
Will my doors feel heavy or sag? No—our lightweight spec protects hinges and actuators. Added mass is tightly controlled. Is it waterproof? Yes. We maintain factory drainage and use closed-cell materials that don’t soak water. Will it void my warranty? We don’t modify airbags or electrics and keep access to service points. If you have warranty concerns, we can document materials and areas treated for your records. How long does it take? Most 2-door jobs are same-day; 4-door typically 1 day depending on vehicle and trim complexity. Will my speakers sound better without replacing them?
Yes. Sealing and stiffening the door noticeably improves bass and clarity even on factory speakers.
First Layer: Premium Vibration damping material is applied to both the inner and outer sides of all major metal panels — including doors, floor, trunk, roof, inner arches. This drastically reduces structural resonance and body panel vibrations caused by road, engine, and suspension.
Second Layer: Advanced Sound and Heat absorbing acoustic foam is installed over the first layer in key cabin zones. It reduces airborne noise such as tire hum, wind, and engine roar — making conversations clearer and highway driving more relaxed.
Maximum Effect: This is our most complete package — delivering luxury-level cabin comfort. It ensures the highest possible reduction in road noise, significantly enhances speaker performance, and adds thermal insulation benefits. You’ll feel the difference from the very first drive.
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I was initially skeptical about whether sound deadening would work or be worth the investment. But after having it done on my car, the difference is incredible.
The road noise has been significantly reduced and the sound system sounds much better than before. No more rattles or road noise. The car is now very quiet, even over speed bumps and potholes. It also feels heavier and more solid, which has noticeably improved the handling.
Dimitry did the job very professionally and I’m really happy with the whole experience. This is definitely a must-do modification!
Shubham Dhiman
Audi A4. 4 Doors
I soundproofed all four doors, and I’m completely satisfied.
All the noise is gone, and now the car feels as new as it did on the first day of delivery.
Mark Nguyen
Yaris GR. 2 Doors, Boot lid.
Just had the front doors of my GR Yaris soundproofed by Dimitriy at Car Sound Deadening Solutions — and what an incredible job! He’s meticulous, uses premium materials, and the difference is night and day. My upgraded speakers now sound even better, outside noise is drastically reduced, and the car feels far more refined — almost like a high-end vehicle.
Truly exceeded my expectations. Highly recommended, and I’ll definitely be back to get more work done on the rest of the car.
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Sound Deadening Fixes
Noise & Vibration Protection
We apply multi-layer sound deadening treatments that eliminate road noise, creaks, and low-frequency hums. This protects your health and patience—especially on long drives.
Improved Sound System Performance
By reducing structural vibrations in the car body using vibration-damping materials, we create an acoustically optimized space. Foamed sound absorbers help capture and scatter sound waves, enhancing clarity and depth of your audio system.
Thermal Insulation
We use specialized materials with heat-insulating properties to treat the vehicle. This helps keep the cabin warmer in winter and cooler in summer, improving overall driving comfort.
Better Road Stability
Proper sound deadening improves driving feel. The car becomes more stable in turns, and vibrations from passing traffic are significantly reduced—resulting in a smoother, more controlled ride.
Corrosion Protection
We use materials with anti-corrosion and sealing properties to add long-term protection to your vehicle's body panels and cavities.
Body Reinforcement
Our treatments help increase the rigidity of the car body, reducing flex and enhancing the vehicle’s structural integrity.
Our numbers
10
Number of years working with sound deadening
200+
Number of successfull car project
40+
Number of different car brands that we worked with
How we work with you
🚗 Step 1
Getting Started. We meet, discuss your needs, and bring your vehicle into our workshop. 🤝
🔍 Step 2
Inspection & Preparation. We thoroughly inspect the car and prepare it for the soundproofing process. 🧰
🎧 Step 3
Signature Soundproofing. We apply high-performance soundproofing using our proprietary techniques and carefully selected materials. 🎯🛠️
✨ Step 4
Final Touches. We check the electronics, clean the interior, and return your car spotless and ready — all on the same day. ✅🧼🚙
ABOUT MATERIALS
Premium Brands Only
We use top-tier materials like STP, CarBuilderstrusted by professionals worldwide for their durability, performance, and long-lasting effect.
Multi-Layer Protection
Our installation includes vibration damping, noise insulation, and thermal barriers to ensure maximum comfort and silence inside your car.
Heat & Water Resistant
All materials are designed to withstand Australian heat and resist moisture, making them perfect for both daily driving and extreme conditions.
Meet our team
Dimitriy
Founder
Accredited Installation Specialist
FAQs
If you have any questions, send us an email or call us at 0415 623 634
In all our experience — and the experience of the manufacturer Shumoff — we’ve never encountered a single case of door sagging caused by sound deadening, as long as the materials were properly selected for the vehicle.
We can, but a sound level meter and decibel readings don’t reflect the perceived difference accurately. Decibels are a logarithmic unit — a 3 dB change (from 46 dB to 43 dB) means the noise level is cut in half, and a 6 dB change means it’s reduced by four times.
If the metal surface is properly cleaned and the vibration-damping material is firmly applied, it can actually act as an anti-corrosion layer.
Corrosion under sound deadening only happens when the surface isn’t prepared correctly or the installation process is done improperly.
Yes, we do offer mobile service — provided that your space is clean, well-lit, dry, and warm (especially in winter).
Contact us
Working hours: 10:00 – 18:00 Unit 9, 3 Middleton Road, Cromer, NSW, 2099