Anna Massi
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.  
Mike 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 pursue. The list was broken down into three specific areas based on PECO's report. Each section had an individual price and we were told we could do any or all of them and provided with the benefits of each. The team showed up on time, were very knowledgeable, professional and courteous. They explained what they were going to… (read more)
Michael K.
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 work areas afterwards. They condu cted blower tests before and after the work to measure the progress made. Before they left, they went over the work that was done.
Angelo A.
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 took half a day and was completed by two outstanding workers who impressed me with their expertise and diligence in getting the work done.  I observed them carefully and was impressed with their professionalism and attention to detail. They were very respectful in terms of keeping our home clean even as they dealt with installing the attic insulation.  I give Green Stone Energy… (read more)
Marilyn C.
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 basement insulation.
April & John S.
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 even though we had made many different energy saving improvements before.  We're looking forward to seeing how it affects our heating bills!
Gary M.
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 extremely well and cleaned up prior to departure. They answered every question and concern we had as well as followed up afterwards to make sure we were pleased.
Susan S.
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 protect my furniture and flooring. My staff and clients are enjoying the more comfortable temperature and I'm loving my Peco bill. This company is stellar and worth every penny!
Mary K.
Very satisfied with all the work.  The installers were very professional, efficient, polite, on time,and kept everything covered and clean.
Jan L., Newtown Square
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 work itself anyway for the price quoted. The two gentlemen who came to do the work were kind, courteous and of no bother. They kept us informed through out the project and we felt very comfortable the service. I'd recommend Green Stone Energy on a variety of levels but a star also goes to the improvement… (read more)