Attic and Exterior Wall Insulation

5C Energy, Inc. (formerly known as Affordable Building & Weatherization, Inc.) has been a leader in residential and commercial attic and wall insulation services in Massachusetts and Rhode Island since 2013. Our wall insulation company is the most skilled in the region. To learn more and receive your free consultation and quote, call our friendly staff today or reach out online.

Highly Trained Team

Our entire team is certified, and our crew chiefs are leaders in the field. Our home insulation company contractors are available six days a week to provide timely service.

Top Reviews

Read all of our exceptional reviews on Google.

Our Satisfaction Promise

We promise you’ll love our work and will be satisfied with the results.

Experience Matters

We’ve served over 3,500 homes and businesses in the MA and RI areas, saving residents and business owners over $19M in energy cost savings.

Why does my home or business need attic and wall insulation?

Installing the appropriate type and amount of attic and exterior wall insulation will help keep your home or business comfortable year-round.

Because attics and walls make up the largest surface area of your home, they are often the greatest areas of heat loss in the winter and cooling loss in the summer. Therefore, insulating your exterior walls and attic will improve your air quality and comfort, lower energy usage, and reduce utility costs.

In addition, attic insulation is so essential because heat rises. And as the heat moves upward, the last line of defense for keeping it contained is the attic.

At 5C Energy Inc., our attic insulation company knows where to use each insulating product to get the maximum R-value for your home.

Did you know that proper wall and attic insulation also improves the air quality in your home or business? Most people think about insulation keeping the warm air in during the winter months and the cool air in during the summer. But, insulation also keeps the outside air from entering your building. That means, with the right insulation solution, you can keep pollution, pollen, and other outside particles from entering your home.

attic and wall insulation services
What type of insulation do you use for attics and exterior walls?

At 5C Energy, Inc., we use fiberglass and cellulose insulation solutions because both are effective thermal barriers. Along with air sealing protrusions into attic floors from below, the combination can be very effective at stopping warm, moist ambient air from infiltrating the cooler attic in winter months and warmer attic in summer months.

The high R-Value in fiberglass is due to tiny air pockets in the insulation that resist the flow of heat. These pockets trap the heat, reducing heat loss in the winter and heat gain in the summer.

On the other hand, cellulose is an effective solution for walls in a renovation project where walls are already enclosed and the ability to insulate is difficult. We can blow cellulose into wall cavities. There, it acts as both an air flow inhibitor and an insulating material.

In addition, fiberglass and some cellulose applications can be used for soundproofing by stopping sounds from traveling through the walls and ceilings of your home.

Also, for interior walls, attic roof decks, as well as crawl space and basement walls, advanced closed or open spray foam insulation is an option. And, depending on the shape and size of your attic, we may use a combination of loose-fill and blanket fiberglass insulation options.


Man installing thermal attic and wall insulation layer under the roof
What is R-value, and why is it important?

R-value measures the insulation’s ability to resist airflow. So, the higher the value, the more air resistant and efficient the material. 5C Energy, Inc. only uses insulation solutions suited for the specific measure following the building code requirements for walls and attics in Massachusetts and Rhode Island.

Choosing the best R-value depends on where the insulation is placed in your home or business. Often, wall and attic insulation have different R-values because of the different insulation demands needed for those specific areas.

Before we begin the installation of insulation in your walls and attic, we divide the spaces into different “zones.” Depending on the location, each zone requires a different R-value for maximum insulation and energy-saving efficiency.

house in winter with attic and wall insulation in cold snowy weather with model of a house wearing a knitted cap
Can I install attic and wall insulation on my own?

Installing insulation looks easy, right? How hard could it really be? Isn’t it just laying fluffy pink insulation along the floorboards and wall joists?

The fact is, it’s not that easy. This is because improperly installed insulation will cost you time and money. If it is not done correctly, you run the risk of damaging your property or not reaping the energy savings that you could have received if you called a professional. Therefore, it’s always a better idea to call a professional first to save you time and money.


Do I have to insulate both my walls and attic?

Yes, insulation in the walls and attic are equally important. Both regulate heat and airflow within your home or business, and skipping insulation in one area will allow for a leaky home, which can cause downstream issues related to indoor air quality, increased energy costs, and uncomfortable living conditions.

A man installing blown in cellulose insulation in an attic
blown in cellulose insulation services

Air Tight Seal

Stop airflow from penetrating or leaving your home with an air tight barrier created by spray foam.

A nest thermostat in a home

Save on Your Utility Bill

Ready to save on your energy costs? Our attic and wall insulation company can help you save hundreds of dollars every year!

Drenching June summer rain storm downpour pounding and splattering water on a grimy old backyard clapboard siding shed roof.

Protect Your Property

Attic and wall insulation keep moisture and weather out, protecting your home from mildew and mold.

A worker installing blown in cellulose insulation in an attic

Durable Insulation Solutions

You need an insulation solution that lasts. Fiberglass, cellulose, and advanced spray foam insulation for your attic and walls will provide protection for years.

Why should I choose 5C Energy, Inc. for my wall and attic insulation needs?

5C Energy, Inc. (formerly known as Affordable Building & Weatherization, Inc.) has been providing residential and commercial insulation solutions in Massachusetts and Rhode Island since 2013.

Therefore, no attic or wall insulation job is too large or small for our team of accredited and certified professional energy contractors. We are committed to installing insulation correctly and efficiently, so we will walk you through the benefits and differences of each type of insulation and insulation-related techniques to help you save money on heating and air conditioning bills.
Our company is committed to installing insulation correctly and efficiently, and we accomplish this by only working with accredited and certified professional energy contractors.

To learn more about the attic and wall insulation services we offer, call our office or reach out online today. We service communities in Massachusetts and Rhode Island.

Free Attic and Exterior Wall Insulation Estimate

We offer next level insulation solutions for Commercial, Residential, Multi-Family, Assisted Living, and New Construction. Call Us Today!