Help Centre

Frequently Asked Questions

Everything you need to know about our sound deadening products, orders, and installation.

Products & Materials

What is CLD sound deadening and how does it work?

CLD (Constrained Layer Damping) mats are butyl-based sheets with an aluminium constraining layer. When applied to vehicle panels, they convert vibration energy into heat, reducing resonance and panel noise by up to 80%. They're the foundation of any sound deadening project.

What's the difference between CLD, CCF, MLV and acoustic foam?

CLD mats — Butyl dampers that stop panel vibration. Apply directly to metal surfaces.
CCF (Closed Cell Foam) — Blocks airborne noise and provides thermal insulation. Goes over CLD as a second layer.
MLV (Mass Loaded Vinyl) — Dense vinyl barrier for maximum airborne noise reduction. Best for floors and bulkheads.
Acoustic Foam — Open cell foam that absorbs sound energy inside cavities. Great for doors and pillars.

What products do I need for a van conversion?

For a full van conversion, we recommend a 3-layer approach: 1) CLD deadening mats on all metal panels, 2) CCF noise barrier for thermal insulation and airborne noise blocking, 3) Acoustic foam in doors and pillars. Our bundle kits include everything you need at a discounted price.

Which product is best for reducing road noise?

For road noise, focus on the floor, wheel arches, and doors. Start with CLD mats on all these areas, then add CCF noise barrier on top. For maximum reduction, add MLV mass loaded vinyl between layers. This multi-layer approach can reduce road noise by 50% or more.

Will sound deadening improve my car audio?

Absolutely! Sound deadening dramatically improves car audio by eliminating panel resonance and rattles that compete with your speakers. Your bass will be tighter, mids clearer, and you'll hear details you never noticed before. CLD mats on doors where speakers are mounted make the biggest difference.

Are your products tested for performance?

Yes, all our products are independently tested for acoustic performance. We provide real data and specifications — not marketing claims. Each product listing includes detailed specifications including thickness, weight, coverage area, and temperature range.

Ordering & Payment

What payment methods do you accept?

We accept Visa, Mastercard, American Express, PayPal, Apple Pay, Google Pay, Shop Pay, and Klarna (buy now, pay later). All payments are processed securely through Shopify Payments.

Do you offer trade or bulk pricing?

Yes! We offer competitive trade pricing for professional installers, van conversion companies, and bulk buyers. Contact us at sales@soundproofingshop.co.uk or call +44 1282 270214 for a bespoke quote.

Can I change or cancel my order?

If your order hasn't been dispatched yet, we can usually modify or cancel it. Contact us as soon as possible at sales@soundproofingshop.co.uk. Once dispatched, you'll need to follow our returns process.

Is my payment information secure?

Absolutely. All transactions are encrypted with industry-standard SSL technology and processed through Shopify's PCI-compliant payment gateway. We never store your card details on our servers.

Shipping & Delivery

How quickly will my order be dispatched?

Orders placed before 2pm Monday–Friday are dispatched the same day. Orders placed after 2pm or on weekends will be dispatched the next working day.

How long does delivery take?

Standard UK delivery takes 1–3 working days from dispatch. We use express courier services to ensure your products arrive as quickly as possible. You'll receive tracking information once your order ships.

Do you ship internationally?

Currently we focus on UK delivery. For international enquiries, please contact us at sales@soundproofingshop.co.uk and we'll do our best to accommodate your request.

Will I receive tracking information?

Yes, you'll receive an email with full tracking details once your order has been dispatched. You can also check your order status by logging into your account on our website.

Installation & Application

Do I need special tools to install sound deadening?

No special tools are required. Most products are self-adhesive — simply peel and stick. However, we strongly recommend using a roller (available in our accessories section) to ensure proper adhesion and eliminate air bubbles. You'll also want scissors or a utility knife for cutting.

How do I prepare surfaces before applying?

Clean the surface thoroughly with isopropyl alcohol or a degreaser to remove any dirt, oil, or wax. The surface must be completely dry before application. For best results, apply at room temperature (15°C+). Cold surfaces reduce adhesion quality.

Do I need to cover 100% of the surface?

No! For CLD deadening mats, covering 60-80% of a panel gives you 95% of the maximum benefit. Focus on the centre of large flat panels where vibration is greatest. For CCF and MLV, full coverage gives the best results for airborne noise blocking.

Can I apply sound deadening in cold weather?

We recommend applying in temperatures above 15°C for optimal adhesion. If working in cold conditions, warm the panels and material with a heat gun or hair dryer before application. Store materials at room temperature for 24 hours before use.

In what order should I apply the layers?

Layer 1: CLD deadening mat directly on the bare metal panel.
Layer 2: CCF closed cell foam or MLV over the CLD layer.
Layer 3: Acoustic foam for additional absorption (optional).
Always apply CLD first — it needs direct contact with the vibrating surface to work.

Returns & Refunds

What is your returns policy?

We accept returns on unused, unopened products within 14 days of delivery. Products must be in their original packaging and condition. Please contact us before sending anything back so we can arrange the return.

Can I return a product that's been partially used?

Unfortunately, we cannot accept returns on products that have been opened, cut, or partially used due to hygiene and quality reasons. If you've received a faulty product, please contact us immediately and we'll resolve it.

How long do refunds take?

Once we receive your return, we'll inspect the products and process your refund within 3-5 working days. The refund will be credited to your original payment method. You'll receive an email confirmation when it's processed.

What if I receive a damaged or faulty product?

Contact us immediately at sales@soundproofingshop.co.uk with photos of the damage. We'll arrange a replacement or full refund at no cost to you, including return shipping.

Still Have Questions?

Our expert team is here to help with any questions about sound deadening products, installation, or your specific project.