Knowledgeable staff, hard working and courteous. Completed the attic insulation and vent replacement in one day.
Zac O
Oct 2025
Erick communicated well, explained the work clearly, and provided detailed, itemized lists of what he proposed and what each thing would cost. We put the project on hold for more than a year while some other things worked out and he was able to pick right back up where he left off. Greenstone took care of researching the power company incentives and did all the filing - I only needed to sign a single form. That was great.
When the appointment was scheduled we got a heads-up who was coming, the crew came on time, they were willing to explain the steps they were going to go through, and they took good care of our place while they were here. The attic ceiling access is in a carpeted closet and it lookied like they were prepared to make it a biohazard clean room with all the plastic sheeting and temporary wall supports they put up to contain the dust etc. They cleaned up so well I didn't even need to vaccuum that carpet.
The workers were friendly, and on the post-install walkaround I requested that they seal off a couple of the access panels with caulking because we don't use them often and they are too flimsy to properly fit weather stripping. The crew chief pulled the team back in to take care of it right away even though they had been waiting for 20 or so minutes for my meeting to end.
The price was a little more than we were hoping to pay, but it was similar to the other two quotes we got. The service exceeded my expectations and so far the results have been good. we were the only ones with frost on our roof this morning in the neighborhood.
Susan Kelley
Oct 2025
I am so happy with the weatherizing done by Green Stone Energy. The testing done before and after the work showed significant improvement. The assessment done before the work was thorough and the recommendations explained clearly. The workers were professional, explained what they were doing and pleasant. i highly recommend Green Stone Energy.
Troy Messier
Oct 2025
After a Peco Energy audit of our home, we chose to go with Green Stone for the weatherization project. It included airsealing the attic, installing baffles over the soffit, blown insulation to R49 and insulating the hatch. Additionally the basement was also sealed with spray foam. I cannot say anything about the energy saving because the project was just completed a day ago. However the process was very smooth and satisfying. Jamal inspected the home and wrote up the proposal in a timely manner. Daniel and his crew did the work. They were easy to work with, answered all questions and cleaned up after finishing the job. Very satisfied with the entire process.
Bernadette Baird
Oct 2025
Professional, thorough and efficient. Great value for a lot of insulation work. Green Stone has a wonderful crew and uses quality products.
Frank McKone
Oct 2025
I had an excellent experience with the insulation crew. They took the time to do a very thorough inspection before starting the work, making sure everything was addressed properly. The crew worked efficiently, kept the area clean, and showed real attention to detail. I appreciate their professionalism and the quality of the job they delivered. Highly recommend them for anyone looking for insulation services.
Don Gallo
Sep 2025
Excellent customer service. Very professional.
Richard Hardin
Aug 2025
Arrived on time and did a very thorough job. Fully insulated my attic and basement!
Andrew Stafford
Aug 2025
They did a great job. Our upstairs always felt much hotter than the first floor. Once they came and did air sealing and insulation it was immediately noticeably cooler than normal upstairs in the summer.
Tara Cassano
Jul 2025
We couldn’t be more impressed with Green Stone Energy! From start to finish, the team showed incredible attention to detail, professionalism, and care for our home. They went above and beyond in keeping everything clean and protected—putting up clear tarps to shield our walls, laying down non-skid clean tarps on every surface they walked on, and even wiping down our floors and staircase before they left.
Each technician was kind, respectful, and took the time to listen to our concerns. They were so thoughtful—even keeping the door shut as much as possible to avoid letting in bugs while they worked, and keeping their voices down to avoid waking our newborn.
Our attic was long overdue for insulation (we were at a R-value of 6!) and they brought it all the way up to 49 in just a few hours. On top of that, they installed two bathroom ceiling fans beautifully. Their work has already made a noticeable difference in comfort and efficiency.
Highly recommend Green Stone Energy to anyone looking for top-tier insulation service and an outstanding experience from a truly considerate team!
Bill Friedrich
Knowledgeable staff, hard working and courteous. Completed the attic insulation and vent replacement in one day.
Zac O
Erick communicated well, explained the work clearly, and provided detailed, itemized lists of what he proposed and what each thing would cost. We put the project on hold for more than a year while some other things worked out and he was able to pick right back up where he left off. Greenstone took care of researching the power company incentives and did all the filing - I only needed to sign a single form. That was great.
When the appointment was scheduled we got a heads-up who was coming, the crew came on time, they were willing to explain the steps they were going to go through, and they took good care of our place while they were here. The attic ceiling access is in a carpeted closet and it lookied like they were prepared to make it a biohazard clean room with all the plastic sheeting and temporary wall supports they put up to contain the dust etc. They cleaned up so well I didn't even need to vaccuum that carpet.
The workers were friendly, and on the post-install walkaround I requested that they seal off a couple of the access panels with caulking because we don't use them often and they are too flimsy to properly fit weather stripping. The crew chief pulled the team back in to take care of it right away even though they had been waiting for 20 or so minutes for my meeting to end.
The price was a little more than we were hoping to pay, but it was similar to the other two quotes we got. The service exceeded my expectations and so far the results have been good. we were the only ones with frost on our roof this morning in the neighborhood.
Susan Kelley
I am so happy with the weatherizing done by Green Stone Energy. The testing done before and after the work showed significant improvement. The assessment done before the work was thorough and the recommendations explained clearly. The workers were professional, explained what they were doing and pleasant. i highly recommend Green Stone Energy.
Troy Messier
After a Peco Energy audit of our home, we chose to go with Green Stone for the weatherization project. It included airsealing the attic, installing baffles over the soffit, blown insulation to R49 and insulating the hatch. Additionally the basement was also sealed with spray foam. I cannot say anything about the energy saving because the project was just completed a day ago. However the process was very smooth and satisfying. Jamal inspected the home and wrote up the proposal in a timely manner. Daniel and his crew did the work. They were easy to work with, answered all questions and cleaned up after finishing the job. Very satisfied with the entire process.
Bernadette Baird
Professional, thorough and efficient. Great value for a lot of insulation work. Green Stone has a wonderful crew and uses quality products.
Frank McKone
I had an excellent experience with the insulation crew. They took the time to do a very thorough inspection before starting the work, making sure everything was addressed properly. The crew worked efficiently, kept the area clean, and showed real attention to detail. I appreciate their professionalism and the quality of the job they delivered. Highly recommend them for anyone looking for insulation services.
Don Gallo
Excellent customer service. Very professional.
Richard Hardin
Arrived on time and did a very thorough job.
Fully insulated my attic and basement!
Andrew Stafford
They did a great job. Our upstairs always felt much hotter than the first floor. Once they came and did air sealing and insulation it was immediately noticeably cooler than normal upstairs in the summer.
Tara Cassano
We couldn’t be more impressed with Green Stone Energy! From start to finish, the team showed incredible attention to detail, professionalism, and care for our home. They went above and beyond in keeping everything clean and protected—putting up clear tarps to shield our walls, laying down non-skid clean tarps on every surface they walked on, and even wiping down our floors and staircase before they left.
Each technician was kind, respectful, and took the time to listen to our concerns. They were so thoughtful—even keeping the door shut as much as possible to avoid letting in bugs while they worked, and keeping their voices down to avoid waking our newborn.
Our attic was long overdue for insulation (we were at a R-value of 6!) and they brought it all the way up to 49 in just a few hours. On top of that, they installed two bathroom ceiling fans beautifully. Their work has already made a noticeable difference in comfort and efficiency.
Highly recommend Green Stone Energy to anyone looking for top-tier insulation service and an outstanding experience from a truly considerate team!