Sound Testing when Changing Carpet to Wooden Floors

Sound Testing When Replacing Carpet with Wooden Flooring in Apartment Buildings

Replacing carpets with wooden, laminate or engineered timber flooring is a popular home improvement project, particularly in apartment blocks and flats. However, many lease agreements require that any new floor construction provides a similar level of acoustic performance to the original carpeted finish via sound insulation testing. Failure to meet these requirements can lead to neighbour complaints, lease breaches and costly remedial works.

At APT Sound Testing, we specialise in helping leaseholders, managing agents and flooring contractors demonstrate compliance through a structured process of pre-works sound testing, acoustic design reviews and post-installation sound testing. Please see our our sound testing road map for leaseholders.

Why Acoustic Performance Matters

Carpet and underlay naturally provide excellent impact sound insulation by absorbing footfall noise, dropped objects and everyday activity. Replacing carpet with a hard floor finish can significantly increase noise transmission to flats below if appropriate acoustic measures are not incorporated into the floor design.

For this reason, many leases specify that replacement flooring must achieve an acoustic performance that is equivalent to, or no worse than, the original carpeted floor.

Stage 1: Pre-Works Sound Testing to Floors

The first step is to establish the acoustic performance of the existing carpeted floor construction.

APT Sound Testing carries out airborne and impact sound insulation testing in accordance with recognised UK standards. These baseline measurements provide an accurate assessment of how the existing floor performs before any alterations take place.

This information is essential because it creates a benchmark against which the proposed new flooring system can be assessed.

Benefits of pre-works testing include:

• Establishing existing airborne sound insulation performance.
• Measuring current impact sound transmission levels.
• Providing objective evidence for leaseholders and freeholders.
• Reducing the risk of disputes following installation.
• Creating a performance target for the replacement floor.

Stage 2: Acoustic Design Review for Floors

Once the existing floor performance has been measured, we will review the results and assess the proposed floor construction.

This may involve evaluating:

• Acoustic underlays.
• Floating floor systems.
• Engineered timber flooring.
• Laminate flooring systems.
• Resilient matting and isolation layers.
• Existing structural floor constructions.

The objective is to identify a flooring solution capable of achieving a similar acoustic performance to the original carpeted floor.

By carrying out this design review before installation, potential acoustic issues can be identified early, reducing the likelihood of non-compliance and expensive corrective work.

Stage 3: Post-Installation Sound Testing for Floors

After the new flooring has been installed, final acoustic testing is carried out to verify performance.

The completed floor is tested using the same methodology as the initial survey, allowing a direct comparison between the original and upgraded floor construction.

The post-works report provides independent verification that the installed floor system achieves the required acoustic performance and satisfies lease obligations where applicable.

Trusted Experience Across London and the South East

APT Sound Testing has conducted hundreds of floor replacement acoustic assessments across London and the South East. Our team regularly works with:

• Apartment owners and leaseholders.
• Property management companies.
• Freeholders and resident management companies.
• Interior designers.
• Flooring contractors.
• Architects and surveyors.

Our extensive experience allows us to identify potential issues early and provide practical recommendations that help clients achieve compliance first time.

UKAS Accredited Sound Insulation Testing for Leaseholders

APT Sound Testing is a UKAS-accredited testing laboratory operating in accordance with ISO/IEC 17025. Our accreditation demonstrates technical competence, quality assurance and confidence in the testing results we provide.

Clients can therefore be assured that all measurements are undertaken using calibrated equipment, validated procedures and experienced acoustic professionals.

Need Help with a Carpet-to-Wood Floor Conversion?

If you are planning to replace carpet with wooden, laminate or engineered flooring within an apartment building, APT Sound Testing can provide a complete service including:

• Pre-works sound testing.
• Acoustic design review.
• Floor system recommendations.
• Post-installation verification testing.
• UKAS-accredited reporting.

By assessing the existing floor performance before work begins and verifying compliance after installation, we help ensure that your flooring upgrade satisfies lease requirements and minimises the risk of future neighbour complaints.