in various roofing magazine rankings, CentiMark has consistently been the #1 or #2 roofing contractor in North America. Services According to the company website, CentiMark offers the following systems and services: Commercial roofing Green roofing Metal roofing Preventative Maintenance Roof repairs Asset Management Emergency Response Additionally, they offer Single Source Warranties on workmanship and materials. QuestMark In 2006, QuestMark was established to expand CentiMark’s presence in the flooring industry. DiamondQuest, a new technology for concrete grinding and polishing, catered to a fast-growing market segment in the flooring industry. According to the company website, QuestMark operates out of numerous offices nationwide. Locations The CentiMark Corporation headquarters is located in Canonsburg, Pennsylvania, just outside Pittsburgh. CentiMark has over 80 offices and 3,500 associates across North America. They service all major cities. References External links Official Website Commercial Roofing Roofs Companies based in Pittsburgh 1968 establishments in Pennsylvania Construction and civil engineering companies established in 1968