Duro-Last
Duro-Last custom-fabricates PVC single-ply roofing membranes and accessories for commercial low-slope roofs, from Saginaw, Michigan. It was acquired by Holcim in 2023 and is now part of Amrize.
Details
- Section
- Product Manufacturers
- Reach
- National — operates across the United States, and in several cases Canada.
- Headquarters
- MI
- Product lines
- PVC membranes (Duro-Last X, Duro-Life 600)Fleece-backed membranesDuro-TECH TPODuro-Guard insulationCover boardsVapor barriersCustom-fabricated flashingsFastenersEdge metalMetal roof and wall panels
- Contractor program
Authorized Duro-Last Contractor
Tiers and designations, named as the company names them:
- ●Master Contractor
- ●Elite Contractor
- ●Platinum Contractor
- Ownership
- Holcim completed its acquisition of Duro-Last on 2023-04-03; ownership passed to Amrize in the 2025-06-23 Holcim spin-off. Duro-Last’s own site footer now carries the Amrize logo.
- Notes on this entry
- Describing Duro-Last as Holcim-owned is correct historically but out of date — the current parent is Amrize. Tier names come from a first-party PDF on duro-last.com that carries no version date, so the tier NAMES are the reliable part and thresholds may be stale. duro-last.com/contractors/ itself uses only "authorized Duro-Last contractor".
Where this came from
Details on this page were confirmed from the company’s own site on August 25, 2026. The page that was read. That is a record of what the company publishes about itself — not an endorsement, a rating or a check of its work.
This entry is editorial. Duro-Last did not pay to be listed, has no control over what it says, and appears here because it operates in this part of the roofing industry. Companies change their programs, their ownership and their product lines without announcing it, so treat the date above as the age of this information and confirm anything you are relying on at the source.
Something wrong or out of date? Tell us and it will be checked against the company’s own site again.
Others in Commercial & Low-Slope Systems
Carlisle SynTec Systems
Carlisle SynTec Systems manufactures single-ply commercial roofing membranes and related components. It operates as a division of Carlisle Construction Materials.
Elevate (formerly Firestone Building Products)
Elevate manufactures commercial roofing, wall and lining systems in North America. It was named Firestone Building Products until a June 2022 rebrand and is now part of Amrize.
Johns Manville
Johns Manville manufactures insulation, commercial roofing systems, glass fibers and nonwovens. Its global headquarters is in Denver, Colorado and its history traces to 1858.
Sika Sarnafil / Sika Roofing
Sika manufactures commercial roofing membranes in the United States under the Sarnafil brand. Its roofing and waterproofing division is based in Canton, Massachusetts.
Versico Roofing Systems
Versico Roofing Systems manufactures single-ply commercial roofing membranes and accessories from Carlisle, Pennsylvania. It is a division of Carlisle Construction Materials and a sister brand to Carlisle SynTec.
Mule-Hide Products Co., Inc.
Mule-Hide Products markets low-slope roofing systems and accessories to contractors, founded in Chicago in 1906. It is part of ABC Supply.
Hiring a roofer, rather than buying from one of these?
Manufacturers, distributors and B2B companies do not install roofs. The contractor directory is a separate part of this site, organised by state and then by city — start there, and check licence and insurance with the state board before work begins.
Looking for a roofing contractor instead?
The contractor directory is separate from these industry listings. Browse roofing companies by state and city, then confirm any licence and insurance with the state board before work begins.