Expert Insulation Company in Cranston, RI

There is no better way to say it. 5C Energy Inc. is the trusted Cranston insulation expert that homeowners and business owners continue to rely on. We have been serving local communities since 2013, completing projects for more than 3,500 properties.

From the humid summers near Narragansett Bay to the freezing winters that cause ice dams in Edgewood and Knightsville, Cranston properties face unique challenges. Our insulation strategies are designed to handle Rhode Island’s specific climate cycle. When you are searching for an insulation installation near me, you want a team that understands the climate, applies building science, and delivers measurable results.

A Knowledgeable Team

Our licensed insulation contractor team is trained in multiple insulation systems and available six days a week.

100% Satisfaction Guaranteed

We stand behind our work. We do not leave until you are fully satisfied with the results.

Extremely Experienced

Our projects have contributed to over 1.9 million dollars in energy and cooling savings. That track record matters when choosing experienced local insulation specialists.

A worker in an attic installing spray foam insulation

Our Proven Approach to Insulation

We always begin with a thorough inspection of your property to identify areas where energy escapes or moisture may enter. From there, we recommend the insulation option that best fits your structure and your energy-saving goals.

Advanced Tools and Modern Techniques

When you work with 5C Energy Inc., you can expect professional, efficient, and respectful service from start to finish. Insulation is a long-term investment in your home or business, and we are focused on delivering real energy savings and lasting performance. Our pricing is fair, our workmanship is proven, and we never cut corners. Simply put, there is no better choice for insulation services in Cranston, RI.

Panorama,large,unfinished,basement,with,woodframes,and,wall,insulation.,basement

What Customers are Saying

      EXCELLENT  
   Based on 128 reviews 
    
 
 
 
   
 
 
       Posted on Google  
   
   Anne-Marie Arico 
 
 
 
 Trustindex verifies that the original source of the review is Google. 5C Energy was wonderful! Their team was professional, friendly, clean, and organized from start to finish. They took great care to protect my hardwood floors and cleaned up thoroughly when the job was done. I would absolutely recommend them to anyone looking for quality work!
  
 
      Posted on Google  
   
   Giovanna Carpentieri 
 
 
 
 Trustindex verifies that the original source of the review is Google. Nery and his team insulated our house from the attic to the basement in one day.  They were professional and took care of our home during the process.  I would recommend this team.
Thank you
  
 
      Posted on Google  
   
   milagros rivas 
 
 
 
 Trustindex verifies that the original source of the review is Google. The workers were fabulous, efficient competent and completed the task beyond my expectations. They were respectful , thorough with their task completion and left the entire environment clean
  
 
      Posted on Google  
   
   Leon Steinfeld 
 
 
 
 Trustindex verifies that the original source of the review is Google. We recently had 5C Energy complete energy efficiency work at our house.  Nery and team did an outstanding job.  He kept us informed of all work that was being completed.  The team was professional and very mindful of leaving the house in a clean condition.
  
 
      Posted on Google  
   
   Laura Monteiro 
 
 
 
 Trustindex verifies that the original source of the review is Google. I can’t say enough about the positive experience I had with 5CEnergy. Neri and his team were very respectful of my home, and kept me in the loop throughout the entire installation process. I had three things done through the MassSave program - attic insulation, an exhaust pipe routed through the roof, and door stripping/sweeps added to two doors. I felt extremely confident in the work because of the excellent communication; Neri came to get me a few times to show me the progress and gave me options on how I wanted the work to be done. For such a messy job like insulation, my house was spotless when they left. I would absolutely use 5CEnergy again, as well as recommend them to a friend. Please thank Neri and his team for me!
  
 
      Posted on Google  
   
   John Saad 
 
 
 
 Trustindex verifies that the original source of the review is Google. Joe and his team insulated my attic and added a drier exhaust roof vent. Highly recommend this team. Very professional, courteous, and efficient! Thanks Joe!
  
 
      Posted on Google  
   
   Susan Mottau 
 
 
 
 Trustindex verifies that the original source of the review is Google. Insulation install. Two great crews!  Efficient, skilled, informed, polite (Jimmy, Nelson; Joe, Marcos)
  
 
      Posted on Google  
   
   Jonathan Whalley 
 
 
 
 Trustindex verifies that the original source of the review is Google. 5C was great, super fast and great communication. Henry and Jarlem were great and did an excellent job.
  
 
      Posted on Google  
   
   Gretchen Sennott 
 
 
 
 Trustindex verifies that the original source of the review is Google. Cliff the chief supervisor arrived 5 minutes early with his worker Juan both conducted themselves as perfect gentleman worked efficiently and did a complete walk-through before and after cleanliness was beyond my expectations, they swept up after themselves left my basement floor. I think Cleaner than that when they started, Cliff explained everything that they were going to do and then afterwards brought me back downstairs to make sure that cleanliness was up to my expectations and was there anything else that they could do and explained everything that had been done and if everything was OK and was there anything else that they could do? I would highly recommend 5C energy to anybody.
Thank you 5C energy for making my home more energy efficient!! You’ve got a great team!
  
 
      Posted on Google  
   
   Bill Wells 
 
 
 
 Trustindex verifies that the original source of the review is Google. Henry and his crew including Keith, Jose, Dylan, Hayden and Edwin arrived at our house on time as we expected. They were all very polite and got to work right away. Henry explained everything they were going to do. We had been told this job would most likely take 2 days but they got everything done in one day. Great crew!

What You Can Expect

Preparing Your Property

We begin by preparing the space. Surfaces must be clean and dry before installation. Removing dust and debris helps ensure insulation performs as intended.

Installing High Quality Materials

Next, we install premium insulation materials suited to your home or business. Our insulation services include fiberglass, cellulose, and advanced spray foam systems designed to create a strong thermal barrier.

Curing and Ventilation

After installation, materials are given time to properly set. We also confirm that airflow and ventilation are balanced, ensuring that insulation performs evenly.

Detailed Final Inspection

Once the insulation has settled, our insulation contractor team carefully inspects the entire area. We check for gaps, missed sections, or weak spots to ensure long-lasting performance.

Compliance With Local Codes

If required, we apply protective coatings or additional safety measures to meet Rhode Island building standards. As a trusted insulation company in Cranston, RI, we make sure every project meets code requirements.

Why Proper Insulation Matters?

Insulation plays a major role in energy efficiency. Without it, energy or cooled air escapes easily, leading to higher utility bills.

Professional insulation installation helps stabilize indoor temperatures, reduce moisture concerns, and improve overall comfort. Choosing an experienced insulation contractor ensures those benefits last for years.

Why Choose Our Cranston Insulation Experts?

Still deciding? Here is why so many local homeowners choose 5C Energy Inc. as their insulation company in Cranston, RI. We use high-quality insulation materials and follow strict industry standards on every project. Whether you need residential or commercial insulation services, our team works with precision and care.

We are committed to quality workmanship and complete customer satisfaction. Unlike some companies, we never rush jobs or cut corners. Instead, we focus on doing the work correctly so you can enjoy a more comfortable and energy-efficient property. Contact us today to see why we are the trusted choice for insulation services.

5c energy employees working on commercial insulation

Air Tight Solutions

Our insulation techniques reduce air leaks and help maintain consistent indoor temperatures year-round.

Save on Energy Costs

Quality insulation lowers energy bills and reduces strain on energy and cooling systems.

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

Protect Your Property

Proper insulation blocks moisture and helps prevent mold and mildew issues.

A worker installing blown in cellulose insulation in an attic

Long Lasting Performance

Our insulation systems are built for durability, providing dependable protection and savings for years to come.

Contact the #1 Insulation Company Today

We have been serving the Cranston area for over a decade and have built a reputation as the insulation company homeowners and business owners in Cranston, RI, trust. Contact 5C Energy Inc. and choose the experienced team serving your community.