Man with a hard hat
June 15, 2021

It’s hard to be comfortable in a cold, drafty home (or a hot, sticky one, for that matter). Hiring an insulation company can save you the trauma of having to live in an uncomfortable home, but choosing one can be a tough nut to crack. Keeping that in mind, if you’re looking for a home insulation contractor, then there are several factors to consider. Here’s how to choose an insulation contractor: 

Read Online Reviews

Back in the day, simple word of mouth from friends or family would suffice. Today, however, folks are most likely to trust the reviews left by strangers online. When it comes to gauging the legitimacy of an insulation contactor through online reviews, volume matters. More positive reviews means happy customers. On the other hand, more negative reviews is the first of many red flags to look out for when you choose an insulation contractor. 

Speaking of positive reviews, Green Stone Energy has more 5 star Google reviews than any other insulation contractor in the area. We’re proud of our reviews, and if you want to know what our customers are saying about us, follow this link [Insert link here] 

Endorsed By Your Local Energy Company 

Green Stone Energy is a PECO participating contractor. So, why does that matter? 

It does when hiring an insulation contractor mainly because for every $1 decrease in annual energy costs, you increase the market value of your home by $20. Additionally, homeowners get to save up to 20% on energy costs for years to come. In short, PECO participating contractors offer peace of mind and awesome rebates that you’re simply not going to find anyplace else. 

Follows Industry Standards

Before you choose an insulation contractor, it’s wise to make sure that the contractor has their finger on the pulse when it comes to industry best practices and the latest technologies. 


  • When you call to schedule an appointment for a home estimate, are the company representatives friendly? 

  • Did the estimator arrive as promised (or call ahead if they are running late?)

  • Did they explain the process clearly? 

  • Were you satisfied with the amount of time it took to receive their proposal? 

These are just some of the questions that you need to ask to find out if the company you’re hiring can deliver on its promise. If they were thorough and responsive during the initial process, there’s a good chance you’ll be pleased with the end result. If, on the other hand, the experience was difficult, you should consider choosing another insulation contractor to help you with your project.

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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,