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NAPCO is now
Westlake Pipe & Fittings
Introducing
Westlake Pipe & Fittings.
A Better Foundation™.
With all the talk about infrastructure and water conservation, it’s time for a better solution. An updated system—rethought using environmentally sustainable materials that are engineered to last. Reinvented using the latest technology.
A system strong enough to deliver the water we need in cities, farms and everywhere in between. But most importantly, we need it to be strong enough to last generations.
Westlake Pipe & Fittings is bringing to light the pipe and fittings that make up A Better Foundation—the foundation that connects us all.

Our focus.
Why PVC?
PVC pipe is among the world’s most sustainable products, ideal for long-term use in underground infrastructure. It requires less energy and fewer resources to manufacture than old-technology materials, and its production creates virtually no waste.
It’s efficient, lightweight, non-toxic, corrosion-resistant and can last for 100 years or more. Additionally, PVC derivatives like PVC-O require up to 40% less material to produce than traditional PVC, issuing a new wave of innovation across market segments.

Energy to produce
Average break rate per 100 miles
Average repair cost per 100 miles
Source: Uni-bell PVC Pipe Association
The Westlake
Pipe & Fittings difference.
We are dedicated to helping contractors maximize efficiency and helping engineers design systems that entire communities can rely on.
With manufacturing and distribution centers across North America, as well as dedicated sales, technical services, specification engineering and customer support teams—our unparalleled service allows you to design, specify or install complete projects with confidence.
We are constantly striving to introduce innovative products like Certa-Lok® CLIC™, NAPSYS™ HR/LR, Foamcore and PVCO to the market to ensure that our customers can maximize value and efficiency in their projects.


Our history.
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1972
North American Specialty Products (now Westlake Pipe & Fittings, formerly CertainTeed Pipe) begins manufacturing PVC Pipe
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1979
Certa-Lok® Restrained Joint PVC Pipe is introduced
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1980
Certa-Lok® expands into water well casing PVC pipe products
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1985
Certa-Lok® expands into municipal water and sewer market
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1990
Certa-Lok® product line continues to expand
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1992
North American Pipe forms as subsidiary of Westlake Chemical Corporation
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1993
North American Pipe acquires Texas PVC pipe plant
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1994
North American Pipe acquires three additional plants and begins producing vinyl fence
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2004
North American Pipe acquires three plants from Bristol Pipe
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2008
North American Pipe expands with construction of two plants
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2009
North American Pipe adds Janesville, WI plant through Freedom Plastics Acquisition
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2013
North American Pipe acquires CertainTeed Pipe and Foundations Division
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2016
North American Pipe acquires Royal Building Product's Pipe and Fittings division, part of Westlake Chemical's acquisition of Axiall Corporation
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2019
North American Pipe and Royal Pipe & Fittings become single brand - "NAPCO"
Introduction of Certa-Lok® CLIC™ spline technology
NAPCO opens dedicated Fittings distribution center in Woodbridge, ON
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2020
NAPCO opens dedicated Fittings distribution center in Newbern, TN
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2021
NAPCO announces the acquisition of LASCO Fittings, a leading designer, engineer and manufacturer of injected-molded PVC fittings
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2022
NAPCO announces brand change of North American business to Westlake Pipe & Fittings under Westlake Corporation's Housing and Infrastructure segment
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