Christchurch
Canterbury Insulation
Acoustic insulation install reducing room-to-room noise
Acoustic Insulation

A quieter homemakes everything better.

Standard internal walls are surprisingly poor at blocking sound. Acoustic insulation fills those cavities and can reduce noise transfer by up to 50%, giving you genuine peace and quiet where you need it most.

Get a Free Acoustic Insulation Quote
Noise transfer between rooms

Walls that act like a drum.

Scroll to reveal
the difference
01 / 01 · NOISE REDUCTION
−0%
Up to half the sound transfer between rooms, gone.

Sound vibrations pass through solid materials and across air gaps. An empty wall cavity actually acts like a drum, the plasterboard on each side vibrates, and the air gap between them transmits the sound waves with very little resistance. Filling that cavity with dense insulation fibre absorbs the sound energy and dramatically reduces what gets through.

The denser the fill, the better the sound reduction. Our blown acoustic insulation achieves excellent density throughout the cavity, outperforming loosely fitted batts that can leave gaps.

Where it applies
01 / 04
Inter-room walls
−10dB
noise transfer

Inter-room walls

The most common requests we get are for bedrooms (especially master bedrooms next to living areas), home offices where you need to concentrate, and media rooms or teenagers' bedrooms where music is a factor.

  • Master bedrooms
  • Home offices
  • Teen and media rooms
02 / 04
Ceilings & upper floors
Same Day
installation

Ceilings & upper floors

Footsteps from upstairs, voices through the ceiling, sound that travels across an open hallway, ceiling-cavity acoustic insulation knocks the edge off all of it. A dense fill in the joist space takes the drum out of the floor above.

  • Reduces footfall noise
  • Quieter family living
  • Pairs with thermal benefits
03 / 04
Home theatre & studios
$30-$40
per m², typical

Home theatre & studios

When you actually want to hear what's on screen, or keep it from leaking into the rest of the house, acoustic insulation in surrounding walls and the ceiling cavity gives you a calmer listening room without specialist build-outs.

  • Cleaner cinema audio
  • Less leakage to the house
  • Works alongside soft furnishings
04 / 04
Shared & party walls
Townhouse
ready

Shared & party walls

Acoustic insulation is also increasingly popular in multi-unit townhouses and duplexes where party walls need better sound separation. If you live near a busy road, Riccarton Road, Blenheim Road, or the motorway come to mind, external wall insulation reduces traffic noise as well as keeping your home warmer.

  • Townhouses and duplexes
  • Traffic-noise reduction
  • External-wall option available
Get a quote
How we install it

Same non-invasive
process, quieter result.

Acoustic insulation uses the same blown-fibre technique as our thermal jobs, just denser and targeted at the rooms you actually want quiet.

01

On-site assessment

We come to the rooms that bother you. Inspect the walls, the cavity construction, and identify how the sound is travelling, plasterboard, framing, gaps around services.

02

Tailored acoustic spec

We recommend the right density and depth for your situation, whether it's a master bedroom wall, a media room ceiling, or a shared townhouse party wall.

03

Blown install in a day

Same non-invasive blown installation as our thermal work. Small access holes, dense fill, neat reinstatement. Most jobs are done same-day.

04

Quieter, warmer rooms

You hear the difference straight away. As a bonus, you also get the thermal benefit, less heat moving between rooms, fewer cold spots.

A quieter Christchurch home01 / 01
“I’d recommend Canterbury Insulation to everyone. Less drafts, quieter rooms, better sleep, and less worry about power bills. The team were friendly and professional.”
M
Mark
WOOLSTON
Ready for a quieter home

Let's make
your place
quiet.

Request a free, no-obligation acoustic quote. We'll visit your home, identify the rooms that bother you, and give you a straight answer on what it'll take to fix them.

Noise reduction
Up to 50%
Typical cost
$30 to $40 / m²