
Soundproofing Solutions for Urban Commercial Spaces
Cities are often ideal locations for offices, thanks to convenient public transportation and proximity to clients and customers. But the energy of a busy city can sometimes get a little too loud. Traffic and construction can interrupt meetings, break concentration, and make everyday work more challenging.
You cannot turn down the volume on a busy street, but you can take steps to make your building quieter and more comfortable. The experts at Pella Mid-Atlantic put together this guide to explain how windows can help reduce noise and what to look for when comparing sound ratings, glass, and frames. We’ll also look beyond windows at how sound-absorbing panels and changes to your building’s layout can help create a quieter place to work.
How Outdoor Noise Gets Inside
To reduce outside noise, you first need to understand how it enters your building. Gaps around window frames and worn seals give noise an easy way in. But even windows that close and seal properly can let sound through, especially those with thin, single-pane glass. If rooms facing the street are noticeably louder than other areas, your windows deserve a closer look.
Before considering window replacement, pay attention to when and where noise is most disruptive. During your free consultation with Pella Mid-Atlantic, we’ll discuss what you’re hearing and walk you through the options for reducing it. We’ll also work with your project team to assess whether repairs could address the problem or replacement windows would be a better choice.
If new windows are part of the solution, sound ratings can help you compare how well different options reduce outside noise.
Understanding STC and OITC Window Ratings
Window sound ratings can seem confusing at first, but they’re easier to understand once you break down the acronyms. Two key ratings are Sound Transmission Class (STC) and Outdoor-Indoor Transmission Class (OITC). Both describe how well a window reduces noise, but they focus on different types of sound.
STC measures how well a window reduces airborne sound, such as voices. OITC, by comparison, gives more weight to lower-frequency outdoor noise, including the rumble of traffic and passing trains. This makes OITC especially useful when comparing windows for buildings near busy roads or rail lines.
With either rating, a higher number indicates better sound reduction in testing. However, because the ratings measure performance differently, it is important to compare scores within the same system rather than comparing an STC score with an OITC score.
Though these ratings provide a useful reference point, they are only part of the selection process. Your building’s location, how it is used, and the surrounding noise also matter. With these factors in mind, Pella Mid-Atlantic works with commercial professionals to explore window options, review product performance, and identify solutions that meet their building’s needs.
Window Features That Can Help Reduce Noise
So, what makes one window better at reducing noise than another? Several factors can affect a window’s sound performance, including the type of glass, the number and spacing of panes, the frame, and the quality of the installation.
Laminated Glass
Laminated glass is often considered for noise reduction because the thin layer of material between its sheets of glass helps reduce the sound passing through a window. However, it can be a more costly option, so it is worth comparing it with other window features that also improve sound ratings.
To help you weigh those options, you can browse Pella’s glass options. We also take a closer look at laminated glass and other noise-reducing features in our guide to choosing sound-reducing windows.
Glass Thickness and Spacing
Sound control depends on more than the type of glass you choose. Double- or triple-pane windows can also help reduce noise while offering other benefits, such as improved energy efficiency.
More panes do not automatically mean less noise, though. Glass thickness and the space between panes also affect performance. For that reason, the complete window’s sound rating is a better guide to noise reduction than the number of panes alone.
Frames, Seals, and Installation
Even the right glass needs a proper fit. Gaps around the frame or worn seals can let outside noise in, even with laminated glass or triple-pane windows.
That is why expert installation matters. At Pella Mid-Atlantic, our installation professionals know how to properly fit and seal windows, including where the frame meets the wall. Following manufacturer guidelines helps ensure your windows perform as intended.
Our team can also help you compare window options based on your building’s location, use and sound-control needs, so you have expert guidance from selection through installation.
Beyond Windows: Creating a Quieter Room
Keeping outside noise under control is only part of creating a quieter room. Conversations and equipment inside the building can also affect how comfortable the space feels. Acoustic wall panels, sometimes called soundproofing panels, help absorb sound and reduce echoes within a room. Sound-absorbing ceiling treatments can also improve office acoustics, particularly in rooms with hard floors and bare walls.
Along with choosing sound-absorbing materials, consider where indoor noise comes from and how the space is arranged. Small layout changes, such as separating quieter work areas from places where people gather, can help reduce distractions. These changes work alongside acoustic treatments to address noise inside the building that new windows alone would not resolve.
Plan for a Quieter Commercial Space
Creating a quieter commercial space starts with understanding the types of noise that affect your building and the people who use it. The right windows and proper installation, combined with improvements inside the building, can help reduce distractions and make the space more comfortable.
Pella Mid-Atlantic can help you compare commercial window options and find the right fit for your building. Explore our professional resources for more information or schedule your free consultation to speak directly with a Pella expert and take the next step toward a quieter space today. You can also visit one of our Mid-Atlantic showrooms to explore our windows and doors in person!

