Is your attic wasting energy? The attic is one of the easiest parts of the home to ignore. Often considered to be "out of sight, out of mind" by South Central Pennsylvania homeowners, many people go years without even thinking about their attic. What often goes overlooked, however, is that the attic is one of the main sources of energy loss in the home, and the problem almost always stems from a lack of insulation.

Have your heating bills been through the roof? Is it difficult to maintain a comfortable home environment? Depending on the circumstances, problems such as these and more may be a result of a poorly insulated attic.

Understanding the stack effect

The "Stack effect" is a very important concept to understand for those who are unsure as to how the attic affects home energy efficiency. Essentially, the stack effect is a phenomenon that occurs when your attic isn't properly insulated or air sealed. Conditioned air in the basement will rise, make its way to the first floor and eventually reach the attic. If the attic isn't insulated properly, conditioned indoor air can escape. This creates an unwanted air exchange pattern that wastes money and energy.

The result? Your heating and cooling systems have to work much harder than they should in order to keep the air within the home properly conditioned, which means their lifespans are decreased and your energy bill is elevated. Many people don't even realize just how much energy they end up losing due to having a poorly-insulated attic. The results can be shocking once the problem is addressed.

The benefits of high-performance attic insulation

Surprisingly enough for many homeowners, the attic is actually one of the biggest sources of energy loss in most homes. Fixing the problem with new, high-performance insulation can benefit you and your family immensely:

  • Reduced energy bills

  • Better indoor air quality

  • Enhanced home performance

  • More stable indoor temperatures

  • No ice dams in the wintertime

  • ...and more!

At Energy Smart Home Improvement, we believe that the attic is one of the most important areas of the home to insulate. Our team of building science professionals can install high-performance cellulose insulation in your attic, regardless of its current state. We'll work with you to come up with the best possible solution for reducing energy loss, taking your budget into consideration the entire way through.

Because hot air rises, most heat loss in your home goes "Right through the roof"

The greatest opportunity to achieve a more comfortable home and lower energy bills is in your attic. Experts estimate you can save as much as 40% on your heating and cooling bills by sealing air leaks and providing proper insulation levels. In our area that requires attic insulation values between R-49 and R-60 based on the EPA's Energy Star recommendations. (This means 17" to 21" of loose fill fiberglass or 13" to 16" of cellulose insulation based on Building Performance Institute standards.)

Signs of inadequate attic insulation:

attic insulation example
  • High heating or cooling bills
  • Ice dams in cold winter weather
  • Uneven temperatures in different rooms or different floors of the residence

Are all insulations equal if they have the same R value?

Testing performed at the National Laboratories at Oak Ridge and Brookhaven show that insulations with the same theoretical R values do not perform equally in real homes. Researchers discovered the effective R value of fiberglass insulation decreased significantly during cold weather and to a lesser extent in hot weather, while the effective R value of cellulose insulation remained constant. These studies found that fiberglass insulation loses as much as 30% of its insulation value in cold temperatures.

Energy Smart Home Improvement installs Nu Wool Premium Cellulose Insulation to ensure a comfortable, quiet home. This Class A fire rated insulation uses 86% recycled materials to protect our environment. Unlike other cellulose products, Nu Wool uses no ammonium sulfate which can produce a lingering ammonia smell and can be corrosive to metal. Nu Wool insulation is manufactured with a 100% borate-based fire retardant that is insect and mold resistant.

It's time to properly insulate your attic, and the team at energy smart home improvement is ready to help. Call us today to learn more or to schedule an appointment!


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  • Andrew, Eric, and Bryant were all gentlemen. They were a delight to work with. Even Jon was nice. 

  • Owner was first contact - work to be completed was fully explained - pricing was very good. Work was completed quickly with no issues.

  • My wife and I purchased a leaky and minimally insulated older home and knew we needed to upgrade our insulation and have some air-sealing done.

  • I had my home insulated by Energy Smart and noticed a big difference, GREAT JOB!!!!

  • Thanks so much. We are VERY pleased!

    Fred W., Carlisle, PA
  • Good job!

    Ron E., Hummelstown, PA
  • Your staff is very friendly and professional in their work. Pleasure to deal with everyone and Energy Smart. Good job!

    Dennis H., York, PA
  • Very pleased with your company and your people.

    Barry M., Harrisburg, PA
  • We had an audit, attic air sealing, and additional blown-in insulation installed in the attic. Jon, the owner of the company performed the audit. Very thorough and passionate about the work. The two workers who installed the air sealing and insulation were very professional and timely.

    John S., Carlisle, PA
  • We had air sealing and attic insulation and air sealing in basement. The work was completed in one day and all went well.

    Dave K., Carlisle, PA
  • So far, we are very happy with the project. By the way, Bryant and Erik are excellent representatives of your company. They are both gentlemen!

    Don N., Landisville, PA
  • Energy Smart brought insulation amount up to standards in attic crawl space where heat pump is located. They also took care of sealing vents, moisture issues and other necessary work to make house more energy efficient and reduce chance of rot.

    Doris W., Palmyra, PA
  • This whole process was so smooth. Jon was so great to answer questions when he came to do an estimate. Rachel has been extremely helpful with scheduling, rebates, and everything in between. The gentlemen that completed the installation were courteous, efficient, and performed quality work.

    Daniel S., Camp Hill, PA
  • Looking forward to lower heating & cooling bills in the months ahead! Thanks for a good job. Bryant and James did very well. Very professional.

    Lester P., Boiling Springs, PA
  • We were very well pleased with the work. From Jon the owner and Rachel the office staff were very professional. The workers were great . Very hard workers and the with the heat in the attic it had to be a hard job to do.

    John C., Harrisburg, PA
  • Local company. Owner came and discussed his estimate. Workers were excellent, leaving the place cleaner than before. Good work ethic by employees and professional work. Couldn't be happier!

    Jack C., Dillsburg, PA
  • Jon the owner came personally to provide job estimate and was confident the insulation install would solve our present issues. The Techs were on time and professional. They ensured minimal disruption and cleaned afterwards.

    Ana N., Mechanicsburg, PA
  • I appreciate the workers explaining what they were doing. It helped to understand why this work is so important!

    Jim H., Fayetteville, PA
  • We were very pleased with everyone from the company from the owner on down. They were knowledgeable, professional and courteous. I'm sure our utility bills will reflect the difference.

    Mary C., Harrisburg, PA
  • Project:  Cantilever, Porch, and Window Air Sealing Hey Rachel! Thanks for the great work you guys did yesterday! I'm looking forward to having the upstairs 2 bedrooms a lot more comfortable and energy efficient, especially in the winter. 

    Paul B., Mechanicsburg, PA
  • Project:  Attic Air Sealing & Insulating "The crew that performed the work were courteous, well-spoken, and proceeded to their work without delay. They explained each step of the project and invited us to inspect the results.  We were made to feel comfortable with the job that was done."

    Bill & Judi L., New Bloomfield, PA
  • Project:  Energy Audit I did a Google search to find a local reputable company to perform a home energy audit. Choosing Energy Smart was with out question the correct choice.

    Tom K., Mechanicsburg, PA
  • Project: Attic Insulation Removal & Disposal, Air Sealing, & Insulating Very nice, efficient, responsive company to work with. Will recommend them to others.

    Joanna R., Camp Hill, PA
  • Project: Attic Insulation Removal & Disposal, Air Sealing, & Insulating Very nice, efficient, responsive company to work with. Will recommend them to others.

    Joanna R., Camp Hill, PA
  • Andrew was a real pleasure yesterday. He left the basement in such good shape, it's hard to tell if anything was done (just kidding, of course). Thanks to [your team] for making this year long nightmare a simple process. We will definitely recommend your company to all of our friends. Dottie

  • My 5 star rating so far is based only on the first level of doing business with the contractor who performed the audit very informatively and efficiently. I expect that the follow up report will be very comprehensive and informative and I will comment after our next meeting.

    Russ C., Palmyra, PA
  • Workers were great - professional & friendly. Thank you!

  • This was one of the most professionally and thoroughly prepared and executed home projects I ever experienced. I was given full explanation and reasoning for the project up front, including the energy efficiency audits before and after, as well as ongoing explanation during the actual work.

  • The men were very kind and did a great job explaining the job if I had questions. We were very pleased! 

  • Men were knowledgeable and friendly. 

  • Everyone I met and spoke with was very pleasant and professional. We are also thrilled to see a 27% improvement in our energy efficiency. Thank you all!

  • Everyone on the staff was professional and friendly!

  • The two guys on the job were more than excellent. Everything went so smoothly. I couldn't ask for anything better. 

  • Efficient job. took great care in protecting flooring and furniture. Took time to review what services were done. Polite, personable installers & they tolerated my dogs which is a big plus!! Looking forward to the fruits of their labor (i.e. lower utility bills!)

  • Please let us know if there are energy rebates available. Thanks for your promptness in meeting our need and working into our schedule. 

  • Erik & Bryan were amazing. Professional, courteous, and  offered to follow up with future questions. Couldn't be more appreciative.

  • Just an FYI. The guys were here this morning and did a great job. Very professional. Cleaned up everything. Couldn’t be more pleased. You run a good business! Thanks!!

  • I want to pass along to the Boss that the workers you sent out to my job (Eric & Brandon) did a great job and were a pleasure to deal with! We were very pleased with their work and them over all.

  • Everything was perfect. 

  • I appreciate the process of evaluation and options listed in benefit order. It makes decisions much easier and better. 

  • The job was done well and quickly. Since my lines only freeze in the winter, only time will tell if the project was successful. Fingers crossed and thank you!

  • Project: Test Indoor Air Quality

    Very up front and professional..easy to work with. The workers were polite and explained things well. I felt very comfortable with this contractor and not intimidated as others tend to do.

    Tonya N., Mechanicsburg, PA
  • Very friendly, professional staff - highly recommend!

    Morgan & Nathan R., Harrisburg, PA
  • Great Job. The crew did a great job. Answered all questions, addressed any concerns. 

    Dave L., Myerstown
  • Bill was very professional and straightforward. I forgot to make barriers to keep the insulation contained and was surprised to see that they took the extra time to put them up. We noticed an immediate difference in the comfort of the rooms under that attic space. Thank you!

    Jan Z., Dillsburg
  • The crew was courteous and kept us informed of their progress throughout the project!

    Russell & Stella K., Mechanicsburg, PA
  • Wonderful experience. The initial consultation was extremely thorough and well explained. The work was done quickly and professionally.

  • I received many other quotes and no one else proposed using rebates. By using those available rebates, it made the job affordable! Thanks!

    Dennis S., Mechanicsburg, PA
  • Everyone from the quoting process, scheduling, and installation were polite knowledgeable, and great to work with!

    Mindi Y., Lewisburg, PA
  • Very prompt service, good quality workmanship

    Regina W, Mechanicsburg, PA
  • Thorough, Consistent, and Honest! Thank you!

    Cappel, Camp Hill, PA
  • We are very pleased as we could notice an immediate improvement in the lack of heat loss in our home. Would Definitely recommend others get this done in their homes!

    William Stum, Landisburg, PA
  • We just wanted to thank you and your team for your recent service. We opted for "the works" – Soffit Baffles, Attic Air Sealing and Attic Insulating. Your field workers completed all of the work in about 3.5 hours; much sooner than anticipated by us.

    Mr. and Mrs. Randal Rhoades, Mechanicsburg, PA