Spray foam is one of the most commonly found insulating materials in Pennsylvania homes.

Green Stone Energy uses high ­performance closed­-cell spray foam insulation, which features a high “R-­Value” and helps to keep conditioned air from escaping your home. Many homeowners choose spray foam due to the fact that it not only performs well, but also tends to be less expensive than many other materials.

If you’re looking to increase indoor comfort levels and keep energy bills down, spray foam insulation may be a great fit for your home.

Types of Spray Foam Insulation

Worker applying spray foam insulation to interior of roof

There are two different types of spray foam insulation that should be considered when making a choice for your home: open-­cell and closed-­cell. As you might expect, each of these options has its own set of advantages. Open-­cell spray foam insulation tends to be cheaper, but it also comes along with a lower R-­Value per square inch than closed­-cell. Closed­-cell is much sturdier, and it also comes with the added bonus of being able to stop air and moisture (open­-cell insulation is permeable to these elements).

At Green Stone Energy, we use only the best closed-­cell spray foam available, which can be applied to hard­-to-­reach areas like crawl spaces and the undersides of floors. Spray foam can also be used on exposed exterior walls during renovations or new construction projects, making it a highly versatile form of insulation. When combined with air sealing, spray foam insulation can have a profoundly positive effect on home performance.

Green Stone Energy: Your Southeastern, PA Spray Foam Specialists

The team at Green Stone Energy has a great deal of knowledge and experience when it comes to working with spray foam insulation. We’ll evaluate your home to determine whether or not spray foam might serve as a good solution to your needs, answering any questions you may have along the way. With high ­performance closed­-cell insulation, you can expect to save money, live more comfortably and enjoy consistent temperatures year ­round.

Contact us today for a free energy assessment


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  • Thank you Dutch and Christian from Green Stone Energy LLC for a job well done. Our family will be feeling much warmer this winter. No more heating the outside.

    Lisa, Alex & Thorsten, Audubon, PA,
  • A really good weatherization Company. Would highly recommend.

    Nancy S.,
  • The work that Green Stone Energy completed at my home was awesome! The crew arrived as scheduled and completed their work in the most timely manner. They were very neat and made sure to clean up after themselves. I couldn't believe that the owner of the company even came to check on the progress... Read More

    Nancy M., West Chester, PA,
  • They arrived when they said they would. spread drop cloths where they would be walking. The owner stopped by to check on the progress. All went well. It took about 8 hours from start to finish. My initial observations are showing a positive improvement in the houses ability to hold temperature... Read More

    John S., Norristown,
  • We contacted Green Stone Energy after a PECO energy audit showed a lack of insulation in our attic. Everyone was very professional, friendly, prompt and did a quality job for us.

    Monica H., West Chester,
  • Estimate was done after a complete examination of my concerns.

    Susan M.,
  • We called in Green Stone Energy after a Peco audit recommendation and had two quotes. One was a bit more involved but also 80% more $$. They answered my many questions and upon recognizing at the start of the project they had forgot to include two small areas in their quote, they included the... Read More

    Jan L., ,Newtown Square
  • Very satisfied with all the work. The installers were very professional, efficient, polite, on time,and kept everything covered and clean.

    Mary K.,
  • I can't thank Dutch Schwertner and his team enough for their thorough evaluation and installation of energy efficiency at my Salon. Andrew and Ryan arrived as scheduled with a smile. Their preparation and communication skills really impressed me . I was so pleased with all the care they took to... Read More

    Susan S.,
  • Extremely pleased with everything we received from Green Stone Energy. Everything, from a prompt and fair proposal to timely service appointment. Did not try to oversell us and even recommended not having certain things done as it would not improve the comfort of our home. The work was done... Read More

    Gary M.,
  • Everything went perfectly. Wonderful staff to work with at all levels. Highest level of professionalism and workmanship. The night that the work was done, warm air was streaming into our third floor bathroom, for the first time ever. We were amazed at how much energy we must have been wasting... Read More

    April & John S.,
  • Mark came and conducted a thorough inspection. A well detailed estimate was provided. On the first date of the 2-day installation Mark came on site to review the intended job. Both installers were pleasant and more than competent. They cleaned up well each day. They installed ceiling and... Read More

    Marilyn C.,
  • Our experience with Green Stone Energy was outstanding. The first visit involved identifying the energy-saving opportunities that our home presented. We discussed those opportunities and I learned why and how the required work would be done. The second visit involved doing the actual work, which... Read More

    Angelo A. ,
  • An estimator came over to review the findings of a PECO energy audit. Dutch went over the recommendations with me, and got me a proposal a few days later. The team doing the work showed up on time and were very professional. They placed drop cloths before working inside the house and vacuumed... Read More

    Michael K.,
  • "We had an initial call with Green Stone (GS) and agreed to get an estimate. We did the same with several other contractors. The GS representative "Dutch" came to our home and was very knowledgeable of the PECO results and provided a detailed list of energy saving measures we could possibly... Read More

    Mike K. ,
  • I wanted to thank you for your help with my insulation job. In particular, I wanted to give a shout out to Greg who was on every aspect of the job. He was detail oriented, knowledgeable, conscientious, and a pleasure to work with.

    Anna Massi,