Soundproofing floors: how to soundproof a floor and stop noise from upstairs

Soundproofing floors will get rid of unwanted noise from upstairs. We show you how to do it

soundproofing floors: How to soundproof a floor
(Image credit: Loaf)
Laura Crombie
By
published

Soundproofing floors is a smart move in family homes or flats. Whether you’re converting your loft or basement, or redesigning the first floor of your house, consider fitting in a DIY soundproof layer to stop sound transferring between storeys. Not only will it make living in your home much more peaceful and enjoyable, it’s an easy task to do. Follow renovator Sian Astley’s step-by-step guide and video. 

Here's what you'll need:

  • Overlay tongue and groove plywood boards with cushioning on one side
  • PVA wood adhesive
  • Foam tubing (enough for the room perimeter)
  • Tape measure
  • Saw
  • Hammer
  • Cloth

1. Find boards to fit

Measure your space to work out how many soundproof boards you require. The boards come in a variety of sizes and are available at most DIY stores, so check with your local supplier. It’s a good idea to get some extra boards as a contingency in case you need more or accidentally cut a piece to the wrong size.

2. Cut to size

Cut the panels to size using a saw or electric cutter. Make sure to leave enough room around the room perimeter for the cushioning foam roll. Also take into account room for radiator fittings, conduits and any other outlets required.

3. Protect the edge of the room

Lay the foam tubing around the room’s perimeter. This will be secured once the panels are pushed against it and prevent the panels moving and banging against the wall once installed.

4. Lay the soundproof panels

Clear the room and hoover up any dust. Then you’re ready to lay the panels. Make sure to lie the cushioned side face down with the plywood facing upwards. Slide the tongue and groove panels together, using the PVA wood adhesive to secure. Hammer into place gently.

5. Clean the surface

Wipe away excess glue using a clean cloth as you go to ensure it doesn’t set on the surface. Complete the whole floor and tuck in the foam tubing.

6. Wait 12 hours or more

Leave to dry overnight and then get rid of any excess glue that’s seeped.

7. Fit your flooring

Once dry, you’re ready to lay your chosen floor choice over the top.

Laura Crombie
Laura Crombie

Laura Crombie is a journalist and TV presenter. She has written about homes and interiors for the last 17 years and was Editor of Real Homes before taking on her current position as Content Director for Country Homes & Interiors, 25 Beautiful Homes Period Living and Style at Home. She's an experienced home renovator and is currently DIY-renovating a 1960s house in Worcestershire. She's been quoted on home design and renovating in The Times, The Guardian, The Metro and more. She's also a TV presenter for QVC and has been a commentator for Channel 4 at Crufts dog show.