Our Energy Efficient Window Inserts save 50% of the energy lost through your existing home or office windows. - read more
Our Soundproof Window Inserts stop up to 95% of annoying noise at your home or office. -  
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Our Energy Efficient Window Inserts cost less than replacement windows. - read more

Frequently Asked Questions

How do your window inserts work?
How much money will your window inserts save in energy costs?
How do your window inserts compare to replacement windows?
What are your window inserts made of?
How long does it take for you to install your window inserts?
What do your window inserts look like after they are installed?
How long do your window inserts last?
Do your window inserts fit arches and 'eyebrows'?
Will your window inserts work on sliding glass / patio doors?
Will your window inserts interfere with my window blinds or coverings?
Is tinting available?
How do I clean your window inserts?
Do you have a warranty?
What is the largest size window insert you can make?
Will acrylic yellow or crack?
Why is acrylic used instead of glass?
How much maintenance is required for your window inserts?
How much sound will be reduced with your window inserts?
How do I open, clean and service my existing windows?
How do your window inserts compare to storm windows?
What are they made of? 

How do your window inserts work?
Interior window inserts install inside the building's window opening, leaving existing windows intact, and sealing off a space of 1"- 4" between the old and new windows. This sealed-off air gap provides insulation from heat & cold, as well as sound, lowering your energy bills and reducing outside noises.

There are two parts to the windows—the fixed frame mounted to the window opening, and the removable window insert pane.

The fixed frame is installed on the inside edge of existing window openings, creating a small 3/4" lip extending toward the center of the window opening.

The removable window insert pane is constructed of high-end, window-grade acrylic glazing with a magnetic frame around it. The window insert frame adheres to the lip of the fixed frame, sealing the window opening to create the air gap.

The removable window insert panes have small handles so they can be easily removed to open, clean or service the existing window. Once removed, they can be conveniently placed on top of an adjacent window insert for temporary storage.

How much money will your window inserts save in energy costs?
We estimate you will save 60% of the energy lost through your existing windows. The resulting savings on your energy bill can be significant, particularly if your windows are the most energy inefficient aspect of your home.

The Department of Energy (DOE) estimates that as much as 30% of your energy bills are caused by inefficient windows. Typical single paned aluminum windows are very inefficient. Ordinary glass conducts energy more than four times faster than acrylic,* and aluminum is actually a conductor of energy!

How do your window inserts compare to replacement windows?
Interior window inserts are usually much less costly than replacement windows.

The combination of interior window inserts with your existing windows compares extremely well to double paned, vinyl replacement windows, according to the Lawrence Berkeley National Laboratories study. In addition, Sun & Sound window inserts block much more sound than replacement windows and don't require removal of your old windows.

Replacement windows typically employ glass for the glazing. We use acrylic. Window-grade acrylic has four times the thermal resistance of glass, and has up to 44x greater impact resistance.

What are your window inserts made of?
There are three components that make up the window inserts: The steel frame, the magnetic channel and optical-grade acrylic.

The steel frame is installed in the window opening. It is painted with a coating that will not discolor, and is warranted for as long as you own your home.

The magnetic channel (which holds the window in place) is constructed of a special ABS/PVC alloy with a UV inhibitor. This alloy has several qualities that make it superior to rigid PVC and other materials: a higher gloss, higher thermal deformation temperature, much greater durability, and resistance to discoloration. A continuous strip of flexible permanent bar magnet is inserted into the channel. It is assembled using a patented channel, rather than glues or adhesives that could fail. This ensures a lifetime of trouble-free operation.

The magnetic channel securely holds a crystal-clear sheet of optical-grade acrylic in place to complete the insulation process, creating the most efficient system available anywhere. We do NOT use Plexiglas™.

How long does it take for you to install your window inserts?
It usually takes one day or less for most residential properties.

Commercial buildings vary significantly in size. Small retail strip center suites can be done in one-to-two days. Office installations vary from one day to a week and hotels can take up to 3 weeks.

What do your window inserts look like after they are installed?
In most instances, they are barely noticeable from the inside and can’t be seen from the outside at all. Our interior window inserts have a very small frame measuring slightly less than one inch. They come in standard white or dark bronze, or can be painted to match most window frames or wall colors.

How long do your window inserts last?
Our windows are warranted for as long as you own your home, and is transferrable when you sell your home. The materials we use have been in real life conditions for more than 28 years with excellent results.

Do your window inserts fit arches, 'eyebrows' and other non-rectangular window shapes?
Yes. Our windows are custom-made to fit most shapes and sizes.

Will your window inserts work on sliding-glass patio doors?
Yes. We have two solutions for sliding-glass patio doors, our standard magnetic windows, or our new laminated glass solution. Our standard magnetic windows can be removed each time the sliding-glass patio doors are used, which, if used frequently, can be inconvenient. However, our new sliding-glass solution with laminated glass matches the function of your existing sliding-glass patio doors by allowing you to open them conveniently.

Will your window inserts interfere with my window blinds or coverings?
In most cases there is plenty of room to have both the window inserts and your blinds on the inside of the window frame. If the blinds need to be moved out a little, or repositioned, we usually do that at no cost to you.

Is Tinting Available?
Yes. Tinted acrylic is actually a dye placed in the acrylic when it is being made. Because it is part of the acrylic sheet, it won't peel or bubble over time. If you prefer to use tinted films they should applied to the existing window, and not to the acrylic inserts. Applying tinted film to acrylic inserts will void our warranty.

It is important to note that tinted acrylic warms up quite a bit in the direct sun. Although it will effectively block infrared rays (IR) from entering your interior space, the hot surface of the acrylic will still transfer heat to the interior space. Therefore, we recommend solar screens instead of tinted acrylic where HOAs allow them. Installed on the exterior of the window, solar screens block infrared rays (IR) before they ever get past your primary window.

How do I clean your window inserts?
We will supply you with enough cleaner to clean about 150 windows. We can supply you additional cleaner for $5.00 per bottle. You can also use a very mild dish soap diluted in lukewarm water (3%). Always use a soft cloth like an old T-shirt to wash and dry the windows. NOTE: Do NOT use any cleaners that contain ammonia!

Do you have a warranty?
Yes. Sun & Sound Windows come with a warranty for as long as you own your home, and is transferrable when you sell your home.

What is the largest size window insert you can make?
There is no limit to the size of multi-paned windows we can handle. For one-piece 'picture windows' we can go up to 6'X12' in a single piece. If you have a very large window that you would like to access frequently, we recommend dividing the acrylic window insert to make it easier to handle.

Will acrylic yellow or crack?
No. Optical-grade acrylic like we use contains no styrene or other monomers that will deteriorate, causing yellowing and cracking. Through both laboratory and actual outdoor testing, over the last 28 years, 100% Optical-grade acrylic has been proven not to yellow or crack.

Why is acrylic used in place of glass for your Energy-Efficient Inserts?
The primary reason is safety— when subjected to a blow beyond its resistance, the hazard of injury is greatly reduced because acrylic breaks into large, relatively dull-edged pieces, which scatter at a low speed. It’s stronger than glass—acrylic has up to 17x greater impact resistance than ordinary glass of the same thickness.

How much maintenance is required for your window inserts?
Our windows provide a maintenance-free, airtight seal year after year. You can count on a lifetime of dependable service from the high quality components used in manufacturing our windows. Cleaning is the only care that is required.

How much sound will be reduced with your window inserts?
-  1/8" acrylic glazing reduces sound an average of 30%.
-  1/4" acrylic glazing reduces sound an average of 70%.
-  1/4" laminated glass reduces sound an average of 85%. It is much better at reducing low frequency noise.

How do I open, clean and service my existing windows?
Sun & Sound Windows are removable. The windowpanes have small handles so they can be easily pulled off of the fixed frame to open/clean/service the existing window. Our window inserts match the configuration of your existing windows, single-hung, double-hung, casement, etc., meaning you can remove just the section that covers the movable part of your existing windows.

How do your window inserts compare to storm windows?
Our window inserts are often referred to as interior storm windows because they fit over existing windows like traditional outside storm windows do.

Traditional exterior storm windows typically have a loose seal and weep holes to keep moisture from getting trapped between the existing windows and the storm window. This broken seal means very poor insulation. Our windows form a tight seal, creating an insulating barrier between our windows and the existing windows and keep moisture from ever reaching the existing window, reducing or eliminating condensation. Our system, tested without a prime window, in a simulated 25mph wind, exceeded the U.S. Department of Energy standards for storm windows by 200 times!

Traditional exterior storm windows are typically meant to be taken down during the temperate months so that existing windows can be easily opened. Ours can stay on all year, providing year-round energy savings and sound control.

Traditional outside storm windows are typically made to cover the complete window, making them large, heavy and cumbersome. Our window inserts match the configuration of your existing windows, single-hung, for example, meaning you can remove just the section that covers the movable part of your existing windows.

Traditional outside storm windows cannot be removed from inside the house like interior window inserts. Once removed, traditional outside storm windows need to be stored somewhere. Our window inserts can be magnetically affixed to the upper/lower pane over the part of your existing window that doesn’t open.

Traditional exterior storm windows are often quite noticeable from the outside. Our windows are effectively invisible from the outside and almost unnoticeable on the inside.  

What are They Made Of?
The permanent steel frame is made of a 26 guage, coated galvanized steeel with a rolled edge. The removable frames are built of an ABS/PVC alloy with an embedded magnetic strip rated at .9 pounds per linear foot of holding power. The insert's window pane has three options: 1/8" optical-grade acrylic, 1/4" optical-grade acrylic or 1/4" laminated glass. Our windows carry a warranty against material failure for as long as you you your home, which is transferrable when you sell your home.

 

Technical Data
Our windows have been tested by independent laboratories on several aspects of technical performance. The results are below:

Insulation
U-value of .48 in combination with single pane window, as determined by John M. Yellott Laboratories, Arizona, in tests performed August 5, 1982.

Heat loss reduction of 412.5 btu/hr/sg ft (from 687.0 to 274.5) when applied to single pane window. 60% net reduction of heat transfer. As determined by Architectural Testing Inc., York, PA, in tests performed January.

Air Infiltration
Less than .01 cfm/lineal foot crack space, compared to DOE standard for storm windows of 2.0. Tested with 25 mph wind equivalent at The Associated Laboratories , Dallas, using ASTM E-283 test method. Similar results at the John M. Yellott Laboratories, above.

Sound Control
The STC rating of a single pane window is STC 22-25; a double pane window is STC 27-32. One of our soundproof window inserts installed with a single pane window obtains an STC rating of 38-42. A soundproof insert installed with a double-paned window obtains an STC of 45-50.

Ultraviolet Light (UV) Control
1/8" acrylic - UV between 300 and 355 reduced by 99.1%; 360 and 375 reduced by 66.2%.
1/4" acrylic - UV between 300 and 355 reduced by 99.1%; 360 and 375 reduced by 66.2%.
1/4" laminated glass - UV between 300 and 355 reduced by 99%; 360 and 375 reduced by 97%.

Infrared Light (IR) Controlspan>
1/8" acrylic - Negligible
1/4" acrylic - Negligible
1/4" laminated glass - Unknown

Magnetic Holding Force/span>
12.1.2 lb/lin. ft, commercial grade
.9 lb/lin. ft, residential grade

 To set an appointment for a free estimate, just call us at 281-914-0264 or email us at service@sunandsoundwindows.com.

© Sun & Sound Windows