Go back to directory. Add to Address Book. Grell Roofing LLC Grell Roofing LLC Contact: Joel Valentine Cell Phone: (515)576-9686cell Work Phone: (515)216-3309 ext. 103work Work Phone: (800)208-9693work Work Email: joel@grellroofingllc.comINTERNET Website: www.grellcommercialroofing.com Categories: Roof Inspection / Repair / Replacement Updated 3 years ago. Back to Vendor List