I have worked with these folks off and on since 2001. Mostly as a professional who refers them to my own clients. I’ve not known a more professional group of folks in the commercial / large commercial space ever. Highly recommend, have never had a single complaint. 👍🏽
Corstone has been great! We are always paid within a reasonable time. I feel it is fair to hold retainage to hold subcontractors accountable. There has to be more to the story than these fly by night reviews.
GT POLISHING SYSTEMS
1910 Bickford Ave # A, Snohomish, WA 98290
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