Cretex Specialty Products

Cretex Specialty Products Cretex Specialty Products, for over 30 years, the leader in solving manhole inflow and infiltration,

Cretex Specialty Products, the innovator and leading manufacturer of Internal and External Manhole Chimney Seals, has been providing quality products for 38 years with a focus on stopping wet weather inflow and infiltration in sanitary sewer manholes. The first Cretex Internal Manhole Chimney Seals were installed in Milwaukee Wisconsin in 1981. Hundreds of thousands of installations to date, make

the Cretex Manhole Chimney Seal the most long term, cost effective solution for sealing the frame-chimney joints in manholes. Building on the success of the Chimney Seals, other products were developed including Internal Manhole and Pipe Joint Seals, Exterior Joint Wraps and PRO-RING™. PRO-RING™ is a lightweight manhole grade adjustment system made from Expanded Polypropylene (EPP). PRO-RING™ weighs 95% less than concrete, has excellent chemical resistance and is traffic rated.

06/11/2026

Looking for a Cretex rep near you? 🌎

We have knowledgeable reps ready to help across the U.S. and Canada. Whether it’s a question about products, project guidance, or scheduling a demo, our team is here to support you.

Find your local Cretex representative today: https://cretexseals.com/rep-map/

👋 Get to Know the Cretex TeamThis month, we’re spotlighting Lee Haessig, a familiar face across the Midwest with decades...
06/08/2026

👋 Get to Know the Cretex Team
This month, we’re spotlighting Lee Haessig, a familiar face across the Midwest with decades of experience supporting customers and partners in the field.

• Name: Lee Haessig
• Role: Regional support across WI, MN, ND & SD
• What he does: Supports manufacturer reps, distributor partners, municipalities, and consulting engineers through product demos, trade shows, lunch-and-learns, and hands-on installation training
• Time in the industry: 32+ years with Cretex Specialty Products
• Favorite part of the job: Even though the company is large, the CSP team remains close-knit and supportive of one another.
• Favorite team memory: A 1998 sales meeting at The American Club in Kohler, WI—complete with live manhole installation training, golf, and a Lake Michigan fishing charter
• Outside of work: Motorsports fan and car enthusiast—especially NHRA, Formula 1, and IndyCar. Loves ‘60s and early ‘70s muscle cars (with an appreciation for modern muscle too).
• Fun fact: Big fan of rock and metal music—Linkin Park, Five Finger Death Punch, Ghost, and Gojira—but Pink Floyd is his top choice
• Recommendation: Ozark and Landman (tv shows)
• Bonus: Lee climbed the Sydney Harbour Bridge during a trip to Australia.

Stay tuned as we continue highlighting the people behind Cretex each month.

Video Alert! Get an in-depth look at what the PRO-RING is made of, where the PRO-RING is manufactured, the difference be...
06/02/2026

Video Alert! Get an in-depth look at what the PRO-RING is made of, where the PRO-RING is manufactured, the difference between the Grade, Finish and Angle rings and see how the rings adhere together.

Thanks to Lincoln Winwater for producing this video!

PRO-RING™ is the only manhole grade adjustment system made from Expanded Polypropylene (EPP). PRO-RING™ products provide a proven alternative to concrete gra...

05/25/2026

Today we honor those who gave everything for our country. On Memorial Day, we remember the brave men and women of the United States Armed Forces who made the ultimate sacrifice in service to our nation. Their courage, dedication, and selflessness will never be forgotten. We are grateful for their service and we honor their memory.

Address

Waukesha, WI
53188

Opening Hours

Monday 7am - 4pm
Tuesday 7am - 4pm
Wednesday 7am - 4pm
Thursday 7am - 4pm
Friday 7am - 4pm

Telephone

+12625428153

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