SINCE 1953

A legacy of quality
sealing solutions

The innovators of underground stormwater & sanitary sewer pipe couplers for over 70 years. MarMac Construction Products manufactures pipe joint couplings, seals, and wraps that stand the test of time.

High Strength Precision Grout
Grout Diaper
CSP Flat Band Gasket

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MarMac Construction Products CMP CSP Pipe


Superior Quality

MarMac and our employee family strive to manufacture the most quality, highly-effective products for our customers. Our products are designed to be the best and our quality assurance program ensures our shipped goods represent the best on the market.

Unrivaled Dependability

Anyone who works in the construction industry knows how important dependability is. Customers rely on MarMac Construction Products to receive highly dependable, long-lasting parts on time so they have them when they're needed.

Exceptional Customer Service

Since 1953, customer service has been a top priority for MarMac Construction Products. Our philosophy here is simple: The customer is always right. We stand behind our products, and work hard to ensure our customers have what they need, when they need it.

Unmatched Experience

MarMac Construction Products has been serving the industry for 7 decades. Our employee family is the most knowledgeable, honest, and experienced in the stormwater & sewer drainage industries and we're always ready to share our “know how” with you.

The right coupler
for the job.
Find the pipe coupling you need with our easy tool
Rolled Pipe Coupler - MarMac Construction Products

Superior Couplers & Sealing Products

For Underground Infrastructure

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© Copyright MarMac Manufacturing Company, Inc. All rights reserved.

Join our mailing list!

© Copyright MarMac Manufacturing Company, Inc. All rights reserved.

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Spring Sale - Up To

80% OFF

MarMax Tape
Carton Pricing!

or 40% off single rolls