Lowell, MA Insulation Services

Lowell Team

Our local technicians call Lowell, MA, home. As leaders in the field, we are Lowell’s top insulation company. We provide services six days a week.

Top Reviews in Lowell

Read our positive reviews on Google. See why our customers spread the word that we’re the best!

Guaranteed Satisfaction

Our insulation company in Lowell, MA, guarantees you will be happy with our service.

Trained & Licensed Insulation Experts

Our insulation contractors have provided services to 3,500+ businesses and homes in Lowell and have helped residents save over $19M in utility costs savings.

At 5C Energy Inc., we’ve proudly delivered expert insulation services in Lowell, MA since 2013. From historic homes to modern commercial spaces, we help property owners improve energy efficiency, comfort, and long-term savings. Our results speak for themselves. Each job is led by certified crew chiefs and supported by a team of qualified insulation technicians. They arrive on time and deliver lasting results. As a trusted local insulation contractor in Lowell, we’re committed to getting the job done right. Our customers count on us for honest advice. They also rely on us for professional service. Finally, we provide energy solutions that pay off.

Full-Service Insulation Solutions in Lowell, MA

At 5C Energy Inc., we deliver complete insulation services in Lowell, MA, to meet the needs of both residential and commercial properties. So, whether you’re searching for “insulation installation near me” or need a skilled insulation contractor in Lowell, MA, we’ve got you covered.

Residential Insulation

From classic colonials to modern new builds, our insulation team creates solutions that improve comfort, reduce drafts, and extend the life of your heating and cooling systems.

Commercial Insulation

We partner with business owners throughout Lowell to provide insulation services for offices, warehouses, apartment complexes, and more to maximize energy efficiency and minimize operational costs.

Spray Foam Insulation

Perfect for sealing tight spaces, our open- and closed-cell spray foam expands to block air and moisture, giving your property a long-lasting defense against heat loss and humidity.

Attic & Wall Insulation

Attics and walls are two of the biggest culprits when it comes to energy waste. Our high-performance insulation keeps your indoor climate consistent and reduces your energy bills.

Basement & Crawl Space Insulation

Uninsulated basements and crawl spaces lead to cold floors and musty air. To address this, we insulate and seal these areas to improve air quality and energy efficiency throughout your home.

Vapor Barriers

Moisture problems? Our team installs vapor barriers that help protect against mold, mildew, and structural damage.

Air-Sealing Services

Tiny gaps and cracks can cause big problems. Our air sealing service closes off leaks around pipes, ducts, and frames, giving your HVAC system a break and your wallet a boost.

Blown-In Cellulose Insulation

Looking for a green option? Our blown-in cellulose insulation is made from recycled content and provides excellent thermal protection in walls, attics, and hard-to-reach spaces.

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!

Why Lowell Homeowners and Businesses Choose 5C Energy Inc.

We’ve earned our reputation as the most trusted insulation company in Lowell, Massachusetts, thanks to experience, reliability, and results that last.

We Love the Lowell Community – As a local team, we understand the insulation challenges unique to Lowell’s historic homes, triple-deckers, and mixed-use buildings. Our certified crew chiefs treat your property like it’s their own.

Built for New England Extremes – From icy winters along the Merrimack River to sweltering summer afternoons, Massachusetts weather puts your property to the test. Our insulation solutions are designed to perform all year long, helping you stay comfortable and cut down on HVAC strain.

Proven Energy Savings and Rebates – Since 2013, we’ve helped thousands of Massachusetts residents reduce their energy costs by delivering over $1.9 million in savings. We also work with trusted partners like National Grid, Mass Save®, and RISE. These partnerships connect eligible homeowners and businesses to powerful rebate programs. As a result, our clients maximize their energy savings and benefits.

At 5C Energy Inc., we want to be your insulation company in Lowell, Massachusetts. Available six days a week, our team is ready to help.

Free Lowell, MA Insulation Estimate

Need reliable insulation services in the Lowell area? 5C Energy Inc. is the insulation company in Lowell, Massachusetts that home and business owners trust for expert service and lasting energy savings. Call us today or use this website to schedule your free consultation and find out how much you could save.