Gravina's cannot be trusted. They lied to us, stringing us along for over 9 months after promising to fix a problem they created, then deciding that they had changed their minds and were not going to replace the product at hand. It is clear to us now that they never intended to fix the issue, and hopefully you can avoid problems by choosing a different company. With so many choices for these types of products and services in the Denver area, why take your chances? In our experience, this company is unethical.
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