• Phone 800-208-9693
  • Email erica@grellroofingllc.com
  • Office Hours 8AM - 5PM (M-F) / 24X7 Emergency

Our Portfolio

Our Portfolio

Head Start

Flat Roofing Project
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USG

Commercial Building Retail Business
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Secondary Roads

Commercial Building Retail Business
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US Post Office WI

County Facility Beaver Dam, WI | Flat Roofing
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US Post Office Gowrie

Gowrie Post Office | Flat Roof/Re-roof
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Marzetti Frozen Pasta

Commercial Building Retail Business | Flat Roof/Re-roof
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Barilla America

Commercial Building Retail Business – Flat Roof/Re-roof Duro-Last Fully Adhered Roofing System Duro-Last is a factory-welded single-ply thermoplastic roofing membrane. Duro-Last membranes are measured, ordered, and custom-fit to each individual roof. This way, many seams can be factory welded in a controlled environment. Before a Duro-Last job is finished, it is inspected by quality assurance representatives of the manufacturer (not Grell Roofing) to meet exhaustive specs, and in order to carry one of the best warranties in the industry.
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Salvation Army

Commercial Building Retail Business – Flat Roof/Re-roof Duro-Last PVC Membrane, White/Reflective About Product: Duro-Last is a factory-welded single-ply thermoplastic roofing membrane. Duro-Last membranes are measured, ordered, and custom-fit to each individual roof. This way, many seams can be factory welded in a controlled environment. Before a Duro-Last job is finished, it is inspected by quality assurance representatives of the manufacturer (not Grell Roofing) to meet exhaustive specs, and in order to carry one of the best warranties in the industry.
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Sacred Heart School

School/Educational Building – Flat Roof/Re-roof Duro-Last PVC Membrane, White/Reflective About Product: Duro-Last is a factory-welded single-ply thermoplastic roofing membrane. Duro-Last membranes are measured, ordered, and custom-fit to each individual roof. This way, many seams can be factory welded in a controlled environment. Before a Duro-Last job is finished, it is inspected by quality assurance representatives of the manufacturer (not Grell Roofing) to meet exhaustive specs, and in order to carry one of the best warranties in the industry.
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