Latest Articles

Consumer News, Industry, Residential Real Estate, Education

August 28, 2018

Increase the Sale Price, Speed the Sale Process by Making Noise a Non-Issue

When the best residential locations often have noise issues, soundproofing existing windows can be a competitive sales advantage.

No matter how beautiful the home or convenient the location, the constant din of highway/street traffic, blare of train/ship horns, or roar of aircraft can kill the sale. After all, if the buyer is concerned about sleeping/working/living in a noisy home the sale is likely doomed, delayed, or subjected to low price offers.

With the nation’s residential market becoming increasingly urban, the problem of homes, condos, or apartments being located near loud sources of external noise is growing for real estate professionals.

Furthermore, buyers today are not only sensitive to noise pollution, but also have sophisticated tools available, such as an annually updated National Transportation Noise Map.  Created by The Bureau of Transportation Statistics, a division of the United States Department of Transportation, this allows users to see the noise generated in particular neighborhoods.

To help homeowners proactively fix the noise problem to prepare for the sale, real estate professionals need to understand that existing windows – not walls – account for up to 90% of external noise penetration.  However, traditional dual pane windows are not designed to reduce noise, and there often isn’t time or money available to do a full-scale window replacement project when the home needs to be put up for sale.  

Fortunately, agents, brokers, and developers are discovering how to increase the selling price and expedite the sale by helping homeowners economically soundproof the most problematic existing windows and patio doors (facing traffic etc.) in a matter of hours, using technology derived from recording studios.

Traditional Window Troubles

Dual pane replacement windows are designed to keep out heat and cold, but not noise.  While the seals of a new window provide some noise reduction, the two pieces of glass in dual pane windows are separated by an air space and sealed into one solid glass unit. Like a drum, this causes both pieces of glass to vibrate together.  This drum effect defeats the noise reduction benefit of dual pane windows.  

Instead, a growing number of real estate professionals are finding a solution to the noise problem for their clients by recommending a more modern soundproofing technology.

For example, some are turning to companies like Soundproof Windows, Inc., a company with expertise engineering windows for some of the most noise-sensitive environments in the world, such as recording studios.  

The company has adapted recording studio window soundproofing technology for residential homes by creating a secondary soundproofing window that installs inside, behind the existing window.  The product is custom designed specifically to match – and function – like the original window.  Installation is simple, straightforward, and usually can be completed in about an hour or two.

The inner window essentially reduces noise from entering on three fronts: the type of materials used to make the pane, the ideal air space between the original window and insert, and finally improved, long-lasting seals.  The combination can reduce external noise by up to 95%.

The first noise barrier is laminated glass, which dampens sound vibration much like a finger on a wine glass stops it from ringing when struck.  An inner PVB layer of plastic further dampens sound vibrations.

Air space of 2-4 inches between the existing window and the Soundproof Window also significantly improves noise reduction because it isolates the window frame from external sound vibrations.

Finally, the company places spring-loaded seals in the second window frame.  These seals put a constant squeeze on the glass panels, which prevents sound leaks and helps to stop noise from vibrating through the glass.  These spring-loaded seals stay as acoustically sound 15 years down the road as they were on day one.

Selling Even Hard-to-Sell Homes

Installing such soundproofing can help expedite the sale of even hard-to-sell homes, such as those next to busy freeways.

For instance, when one frustrated homeowner tried to sell his spacious home in Alamo, CA with soaring ceilings, walls of windows and oversized wood beams, buyers loved the home’s beautiful design, but could not tolerate being next to a noisy freeway, with an estimated 67,000 commuters per day.

During the first 90 days on the market, over 80 groups came through the home, but there were no offers or strong lookers.  Every group commented on the noise, and the serious lookers said they could not handle the traffic noise.

The homeowner decided to install Soundproof Windows and took the house off the market.  The soundproofing company came in, and promptly measured, manufactured and installed a total of 21 windows and [sliding glass] doors.  After installation, the home sold in just 21 days.

“Almost everyone loved the house both times it was on the market, but the first time everyone said the traffic noise was too much for them,” says the homeowner.  “The second time not one person even mentioned the traffic noise.  What a difference.”

Residential developers can also benefit from soundproofing hard-to-sell homes.  

For example, one developer built a dozen homes near a Northern California freeway with a sound wall.  However, the upstairs bedrooms overlooked the sound wall and were very noisy.  He did not install soundproofing windows, but offered them as an upgrade.  Almost all of the buyers bought the upgrade.

Near the end of the project, the developer stated: “It took me over a year to sell these homes in this active Northern California housing market.  If I would have just installed [the soundproof] windows in all the homes to begin with, I know I would have sold all of them within four months.  The interest I would have saved would have paid for the windows several times over.  I won’t make that mistake again.”  He bought windows for the last three remaining homes and sold them within a few weeks.

Adding Home Value: Cutting Energy Cost and Draftiness

Converting to soundproof windows can also significantly reduce energy costs.  The new inner window provides an additional layer of insulation resulting in better values than the best low-e, argon, gas-filled, dual paned window.  These features can reduce heat loss by 77% or more, and can reduce the heating-cooling portion of energy bills by 15-30%.  

With added insulation and better seals, the windows can also help to prevent cold drafts from entering even when it is windy outside, which makes homes more comfortable.  

The bottom line for real estate professionals is that by helping their clients to selectively soundproof the windows and sliding glass doors that are most problematic, they can quickly handle any external noise issues.  This can not only help to expedite the sale but also maximize the selling price.

Soundproof Windows is a market leader specializing in the installation of quality, soundproof windows. For more information, visit

Related Post

2021 Real Town The Real Estate Network