There is a site listing a lot of positive feedback from homeowners who have had the Signature 8000 installed in their home, not just in Indianapolis but across the nation. In addition there are a few video testimonials on the site as well.
If you want to actual feedback from homeowners who bought the Signature 8000 please visit: www[dot]apextestimonials[dot]com
Also, if you have any more questions about Apex Energy Solutions, visit their website at: www[dot]apexenergygroup[dot]com
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