Best Acoustic Underlay UK 2026 — Expert Ranked Top 7 (With Prices Per m²)
Written by our acoustic insulation specialist — 15+ years experience supplying soundproofing to UK homeowners, developers and contractors. About our experts.
Written by our acoustic insulation specialist — 15+ years experience supplying soundproofing to UK homeowners, developers and contractors.
After testing dozens of acoustic underlays and speaking with hundreds of UK homeowners and contractors over the past 15 years, I can tell you one thing with confidence: not all acoustic underlays are created equal. The difference between a 3mm budget mat and our top-rated 6mm rubber underlay is not just a few millimetres — it is the difference between a noticeable improvement and a genuinely transformative one.
In this guide, I will rank our top 7 acoustic underlays for 2026, explain exactly what each one is best for, and give you the honest pros and cons — including price per m² — so you can make the right choice for your project.
Before You Choose: Impact Noise or Airborne Noise?
This is the most important question. Get it wrong and you will spend money on a product that does not solve your problem.
- Impact noise — footsteps, dropped objects, chair scraping — is best addressed with a resilient, decoupling underlay. You need a product that prevents the impact vibration from transmitting directly through to the floor structure below.
- Airborne noise — voices, music, TV — is best addressed with mass. Dense, heavy materials reflect airborne sound waves rather than transmitting them.
- Both — most people in flats and multi-storey properties need to address both. Our top-ranked products handle both.
The Top 7 Acoustic Underlays for 2026
🥇 1st Place: 6mm Recycled Rubber Acoustic Underlay — 74dB | Best All-Rounder
ΔLw: Up to 74dB | Thickness: 6mm | Material: Recycled rubber crumb | Best for: Flats, Part E compliance, all hard floor finishes
This is our highest-rated acoustic underlay and the one we recommend for the vast majority of customers who ask us what to buy. Our 6mm recycled rubber underlay achieves up to 74dB impact noise reduction — significantly better than most competitors at this price point.
Why it wins:
- Best impact noise reduction in its thickness class
- Part E compliant when used in a correctly specified system
- Compatible with laminate, LVT, engineered wood, parquet
- Recycled rubber — environmentally responsible
- UFH compatible
- Competitive price per m²
Who should buy it: Anyone in a flat needing meaningful noise reduction. Developers and contractors specifying for Part E. Homeowners who want a proper solution, not a budget patch.
Verdict: The best acoustic underlay for most people, most situations. Start here.
🥈 2nd Place: 12mm Acoustic Flooring System — 30dB Impact + 58dB Airborne | Maximum Performance
Performance: 30dB impact + 58dB airborne | Thickness: 12mm | Best for: Full Part E compliance, concrete and timber floors
If you need the best possible acoustic performance — and particularly if you need to achieve Building Regulations Part E — our 12mm acoustic flooring system is the answer. It delivers both impact and airborne noise reduction in a single composite system.
Why it wins:
- Industry-leading combined performance (30dB impact + 58dB airborne)
- Designed specifically for Part E compliance
- Suitable for concrete slabs and timber joist floors
- Used by developers and contractors on compliance-critical projects
Who should buy it: Developers, architects, and contractors who need certified Part E compliance. Homeowners with severe noise problems who need maximum results.
Verdict: The highest-performing option in our range. Worth every penny for compliance-critical projects.
🥉 3rd Place: 3mm Recycled Rubber Underlay — 54dB | Best Budget Option
ΔLw: Up to 54dB | Thickness: 3mm | Best for: Budget builds, minor noise improvement, thinnest possible floor raise
Our 3mm rubber underlay is the most affordable option for meaningful acoustic performance. At 54dB, it provides a genuine improvement over standard underlay — but it is not a substitute for the 6mm version if you have a serious noise problem.
Why it wins (in its category):
- Most affordable acoustic rubber underlay
- Only 3mm floor raise — ideal where head height or threshold heights are tight
- 54dB is still a real, perceptible improvement
Who should buy it: Budget-conscious homeowners with moderate noise problems. Anyone who cannot afford to raise the floor height by 6mm.
Verdict: A solid budget pick — but if you can afford 6mm, buy 6mm.
4th Place: SilentMat 15mm Professional Acoustic Underlay | Heavy Use Areas
Thickness: 15mm | Best for: High-traffic commercial areas, heavy use residential, gyms
The SilentMat 15mm is our thickest and densest acoustic underlay, designed for areas with heavy foot traffic or where maximum underfoot comfort is also required alongside acoustic performance.
Who should buy it: Commercial spaces, home gyms, high-traffic hallways and landings.
5th Place: Cork & Rubber Composite Underlay | Natural Eco Option
Best for: Eco-conscious buyers, natural aesthetic preference, moderate noise reduction
Our cork-rubber composite combines the natural acoustic absorption of cork with the impact isolation of rubber. A great choice for buyers who prefer natural materials or want a sustainable option.
Who should buy it: Eco-conscious homeowners. Those who prefer natural materials over recycled rubber.
6th Place: 6mm Silentcloud Acoustic Underlay | Alternative 6mm
Thickness: 6mm | Best for: Alternative to main 6mm rubber for specific applications
The Silentcloud 6mm is our alternative 6mm product — slightly different rubber density profile, suitable for the same applications as our top-ranked 6mm with minor specification differences.
7th Place: Cork Acoustic Underlay | Lightest Natural Option
Best for: Smaller rooms, lighter noise problems, natural cork preference
Pure cork acoustic underlay provides natural sound absorption at the lightest weight of any option in our range. Best for rooms where the noise problem is minor and a natural material is preferred.
How to Choose — Quick Decision Guide
| Your Situation | Recommended Product |
|---|---|
| Flat, serious footstep noise, Part E needed | 6mm Rubber (1st) or 12mm System (2nd) |
| New build or conversion — developer/contractor | 12mm Acoustic System (2nd) |
| Tight budget, minor improvement needed | 3mm Rubber (3rd) |
| Eco-conscious, natural preference | Cork-Rubber Composite (5th) |
| Commercial/gym/heavy use | SilentMat 15mm (4th) |
| Cannot raise floor more than 3mm | 3mm Rubber (3rd) |
Frequently Asked Questions
Is more expensive acoustic underlay always better?
Not always — but in acoustic underlay, you largely get what you pay for. Our 6mm at 74dB significantly outperforms the 3mm at 54dB. The price difference is real, but so is the performance difference. For serious noise problems, invest in the better product.
Can acoustic underlay alone achieve Part E compliance?
No. Part E compliance requires a full system (resilient layer + floating platform + ceiling treatment below for timber floors). Acoustic underlay is a critical component — but it is one part of a system, not a standalone solution.
How do I know which type of noise I have?
Stand on your upper floor and stamp your foot. If the person below can hear it clearly, you have an impact noise problem. If they can hear you talking clearly through the floor, you have an airborne noise problem. Most people in flats have both.
Need help choosing? Contact our technical team for a free recommendation. Browse our full acoustic insulation range or read our complete buying guide.