For those who are looking to improve energy efficiency, there are a number of different routes to take. Moving in the right direction, however, requires you to know what you’re dealing with before taking action. This is where an energy audit comes in, and it’s one of the most important things you can do to enhance home performance.

Is Your Home's Efficiency Up to Par?

Thermal Imaging Camera

A home energy audit is like a trip to the mechanic, except it’s your home that’s being focused on rather than your vehicle. Your home is made up of a number of different complex systems that work together to promote comfort and energy efficiency when all is going well. When issues occur in one area of the home, however, they tend to extend to others and create lasting home performance problems that must be addressed in order to be fixed. An energy audit gives us the information we need to understand what’s going on within the home so that we can make the changes necessary for getting your home back on track.

What to Expect from a Home Energy Audit

There are a number of different things to expect from a home energy audit. Through a series of state-­of-­the-­art tests, we’ll evaluate your home for any issues that may be contributing to a lack of home performance. These tests will provide us with information about air quality issues, safety concerns, appliance inefficiency, insulation problems and issues relating to air sealing.

We take a “whole home” approach, which allows us to get a greater sense of how the home works as a system and provides a baseline for how to move forward to enhance energy & efficiency.

The benefits of conducting a home energy audit include:

● Increased Home Comfort

● Improved Indoor Air Quality

● Reduced Energy Bills

● A More Comfortable Home Environment

● Peace of Mind

At Green Stone Energy, we provide both full and partial energy audits to residents in the Greater Philadelphia area, free of charge. Our goal is to enhance energy efficiency while keeping costs low and providing a valuable service to each and every one of our customers.

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,