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Interior Wall Insulation in Denver, CO

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What to look at when choosing insulation

The materials that can insulate your exterior walls can also be used on your inner walls, though you won’t need a vapor barrier. If you have to open up the walls, fiberglass batts may be the simplest.

Blown-in cellulose insulation can be useful, but the installation can be messy. Be aware that any loose insulation in your walls will eventually compact. Take care when choosing your interior wall insulating product that you have an even heat source available to all spaces.

Home insulation expert installing interior wall insulation

Efficiency level

You want the most efficient insulation to be used on the exterior walls of your space. For inner walls, sound deadening and moisture resistance is as important as heat-holding efficiency.

Fire resistance

Ceramic batt insulation or rock wool insulation will both provide fire resistance for your home. Be aware that ceramic batt insulation is quite a bit more expensive as a raw roll.

Noise reduction

As long as the room has heat, adding insulation between rooms is a terrific way to cut down on noise bleed. Contact us for soundproofing advice based on your specific needs.

Air Quality

Air Quality

Warm air holds more moisture. When your house cools down at night, that moisture will condense in fabrics, carpets, and other porous surfaces. A well-insulated home will suffer fewer air fluctuations and there will be less risk of mildew in your space. Mildew can lead to mold and various other health hazards and it is for the best to prevent it before it becomes a more serious issue.

Ensuring proper ventilation alongside home insulation is crucial to prevent the buildup of indoor pollutants and maintain a healthy environment, balancing energy efficiency with air quality for optimal comfort and well-being.

What to Install and How to Install It

Blown in insulation by Denver wall insulation company is a great choice if your walls are already in place. There’s no point taking out good sheetrock or plaster to put up fiberglass batts.

Unless you have areas of your home that you close off in extreme temperatures, choosing the most energy efficient insulation for your interior walls doesn’t have to be your first choice. Blown in insulation, handled by a professional, can make a huge difference in your home.


made with cellulose (fiberglass, recycled paper, and cardboard)


made with polyurethane chemicals that expand and fill spaces when exposed to air


made with fiberglass and rock wool materials that are installed in rolls

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Interior wall insulation for sound control

Peace and Quiet

Soft materials absorb soundwaves. If you’ve ever tried to have a conversation in a large concrete block building with concrete floors, you know how rapidly sound can bounce around. By adding interior wall insulation for sound control, you actually create a layer of sound-sucking material between your child’s music choices and your favorite television show.

For example, you could insulate the wall between your utility room and the rest of the house so the washer and dryer are quieter. You could insulate between the kitchen and family room so the dishwasher noise doesn’t bleed over the dialogue of your favorite television show.

Heat Availability

Interior wall insulation significantly contributes to heat availability within a building by minimizing heat loss through walls. Properly insulated interior walls create a thermal barrier that retains heat, allowing it to be more effectively distributed and retained within the living spaces.

This conservation of heat enhances the overall warmth of the interior environment, ensuring a more comfortable and consistent temperature while reducing the need for excessive heating, thereby contributing to a more energy-efficient and cost-effective heating system.

House insulation placement & heat availability
Preparing wall insulation for replacement or installation

Can I DIY This?

It’s crucial to follow safety guidelines, understand building codes, select appropriate insulation materials, and ensure proper installation techniques to achieve effective insulation and avoid potential hazards or compromising the structural integrity of the building. If uncertain, consulting a professional or seeking guidance from experienced individuals is advisable to ensure the insulation is installed correctly and safely.

It only takes one mistake for the insulation in your interior walls to create a disastrous mess throughout your home. Most blown in insulation is shredded paper, which will create a layer of dust in your home that will be hard to clean up. The general itch and misery of handling fiberglass batts is an experience best left avoided.

Making Your Decision

The best interior wall insulation for your space is one that will address your concerns and not break your budget. To make sure that your Denver, Colorado home is both comfortable and quiet, it’s a good idea to reach out to Red Rocks Home Insulation Company with your specific concerns.

They will take into account the current array of heat vents in your home, the age of the structure and the best methods to insulate your interior wall channels.

Choosing wall insulation in Denver, CO

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“I wasn’t sure what kind of insulation I needed for soundproofing a room, but my Red Rocks Insulation representative was right on target with their recommendation. Much appreciated!”

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“After the insulation was blown into my attic, I expected to find a mess. Much to my amazement, the Red Rocks insulation installers left the work area cleaner than when they arrived”

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“Apparently, my Red Rocks representative was right. After reflective insulation was installed in my roof area, my energy bill has been 25% lower over the last two months.”

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“As advertised, our Red Rocks technicians completed our roof insulation installation and left the place so clean it was as if they weren’t ever here.”

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Frequently Asked Questions

Can interior wall insulation lower my utility bills?

Fires are a big concern in Colorado. Should I use fireproof insulation on the inner walls of my house?

Consider insulating around your fireplace or behind a pellet stove with fireproofing insulation. Most of these heating tools are already on the outer walls of your home, which is where your money is best spent fire fireproofing.

My walls are plaster and these rooms can be noisy. Will interior wall insulation help?

Within the room itself, not much. Outside of the room, it will help a great deal. It’s true that plaster walls provide more “ping” than sheetrock. If you can fill the gap between the walls with something that will suck up sound, you’ll contain the ping.

I let my Denver home get pretty cool at night. Will insulating the inner walls of my home keep it warmer?

As long as each room has a heat vent and some return air, your home should cool evenly. If you need to use a separate heat source in any room, such as an addition, the heat should stay contained.

Any other question?