Soundproofing Plug Sockets


Electric plug sockets are often one of the most overlooked weaknesses when a room is soundproofed. With potentially two or three holes cut in the acoustic insulation you have installed for the sockets, that can reduce the soundproofing by as much as 10% if not handled correctly.

Our preferred solution is the "intumescent box liner", otherwise known at the acoustic putty pad. It is designed for lining electrical socket boxes in drywall constructions. The mouldable putty easily fit socket boxes to reduce sound travel through drywalls or the back of the electrical box, whilst providing flexibility when fitting avoiding accidental tearing or puncturing.

Cutting an electrical socket opening in a drywall partition can reduce its acoustic performance, but also resistance to fire, which could therefore result in non-compliance with Part E and Part B Building Regulations. The putty pad maintains the acoustic integrity of the wall, with a rating of up to 69dB Rw and:

  • Provides 2 hour fire resistance
  • Complies with Building regulations Part E and Part B
  • Easy to use and install
  • Minimal waste
  • Flexible – one size fits all
  • Cost effective – labour and time saving
  • Reduced damage on site and in transit


Acoustic Putty Pad Installation Guide


Putty Pad Installation

To Fit Pad Internally

  1. Cut the pad and remove the protective paper from one side.
  2. Make a slit for the cable and pass the cable through the pad.
  3. Press the pad firmly into the socket box to ensure adhesion on all surfaces then mould into the corners.
  4. Remove the second protective paper and trim any excess putty.
  5. The length can easily be varied to further reduce waste.

To Fit Pad Externally

  1. Use the printed grid to measure the length of pad required.
  2. Cut with a sharp knife and remove the protective paper from one side.
  3. Press the pad firmly over the back of the socket box to ensure adhesion on all sides.
  4. Remove the second protective paper.

You can get your acoustic putty pads here.