It's all about sales and service! I had quotes from Cornerstone and a competitor. Both were very similar. Cornerstone's quote was a few dollars more then the competitor but Cornerstone won my bid because of James' knowledge of his product and his enthusiasm to answer all my questions. My house lacked adequate air return and he knew exactly what needed to be done to make up the difference. Installation of the new unit was done by AJ & Matt in one day. They were very professional in their work, keeping to the task until it was finished and I was satisfied with the final product. I asked many technical questions which they answered with ease and knowledge one gets only from being well trained and versed in their craft.
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