Westline is a manufacturers representative company. Our goal is to represent complimentary corporations who sell products that stop water intrusion into buildings & other structures.


Founded in 1980, Westline Manufacturers Representatives has established itself as a leader in the California construction industry. Our aim is to provide customers with weatherization solutions (roofing, waterproofing and air barrier systems) that are effective ways to stop water intrusion, without compromising quality or performance of the system.