Spray Foam Soundproofing? Can It Make Your Home Quieter?

Most homeowners think of insulation as a way to regulate temperature, reduce energy bills and increase comfort year-round. But spray foam insulation offers an additional benefit that’s often overlooked—it helps reduce unwanted noise. Serving Red Deer and Central Alberta at NFW Foam, we’ve seen first-hand how residential and commercial clients are love their quieter spray foam insulated spaces. 

Spray foam isn’t just for warm winters and cool summers. It’s also a powerful tool for blocking out disruptive noise and creating calmer, more enjoyable environments. It can also work as a foundation for sound studio-level soundproofing. 

Does spray foam work as sound proofing? 

Spray foam insulation can help reduce noise, but it is not a complete soundproofing solution. Open-cell spray foam in particular is effective at absorbing airborne sound, such as voices or music, because of its soft, flexible structure. It helps dampen sound transmission between rooms and floors by sealing gaps and limiting airflow, which is a major pathway for noise. Closed-cell spray foam is denser and provides some noise reduction, but it is typically chosen for thermal performance and structural strength. While spray foam will not eliminate sound entirely, it significantly improves acoustic comfort in homes and commercial spaces by creating a tighter, quieter envelope. 

How Spray Foam Supports Sound Control 

Unlike traditional insulation materials like fibreglass batts or blown-in cellulose, spray foam forms a dense, airtight barrier that adheres to walls, ceilings and floors. It expands on contact and fills every crack and crevice, sealing off the small pathways that let sound travel through a building’s structure. This helps to dampen airborne noise such as conversations, TVs or barking dogs, and also reduces structural noise like footsteps, appliances or plumbing. 

The material itself also plays a role. Open-cell spray foam has a softer texture that absorbs sound waves effectively, making it an ideal choice for interior applications where acoustic comfort is a priority. While closed-cell foam is more rigid and offers higher thermal resistance, both types contribute to quieter, more peaceful living and working environments. 

Why a Quieter Home or Business Matters 

Sound may not always seem like a pressing concern, but over time, exposure to consistent indoor noise can affect everything from sleep quality to productivity and even mental health. In homes, sound control becomes especially important in multi-storey layouts, basement suites, home offices and shared bedrooms. For businesses, sound reduction improves privacy, enhances focus and creates more professional atmospheres for staff and clients alike. 

Spray foam insulation can’t make a home completely silent, but it can significantly reduce the intensity and frequency of everyday noise. That improvement often leads to a better night’s sleep, less stress and more enjoyment of your space. 

Where Soundproofing with Spray Foam Makes the Most Difference 

In residential homes, we often recommend sound-control spray foam in bedrooms, media rooms, laundry rooms and between shared interior walls. Clients frequently comment on how much quieter their upstairs becomes after attic insulation is updated, or how sound transfer between floors is reduced once floor cavities are properly sealed. 

In commercial spaces, spray foam is especially useful in clinics, classrooms, co-working offices and customer-facing businesses like cafés or retail. Anywhere privacy and peace are important, insulation becomes more than just a utility—it’s an investment in atmosphere. 

NFW Foam works with property owners across Red Deer, Blackfalds and Central Alberta to design smart, effective insulation plans that solve multiple problems at once. 

If a quieter, more comfortable home or business is something you’ve been thinking about, let’s talk about whether spray foam is the right choice. We’ll walk you through options, timelines and performance outcomes so you can feel good about your investment.  

Let’s chat! 

403-350-2720