Precast Concrete Products

Divisions > Precast Concrete Products

JMI is a leading manufacturer of NPCA Certified quality precast concrete products for municipal, commercial and residential construction projects. Our products and processes all meet ASTM, AASHTO & ANSI standards. 

Our catalog of precast inventory includes municipal storm water and utility structures, manholes, barriers and septic tanks as well as a variety of miscellaneous products for residential or commercial landscapes. We also manufacture custom precast products for use in commercial or residential construction. 

All JMI Precast products are made locally with our own concrete mix designs and adhere to industry-wide standards for quality. 

We manufacture the following quality precast concrete products: 

Tanks & Accessories

200 – 60,000+ Gallon Tanks

  • Chlorination Tanks 
  • Aeration Tanks
  • Septic Tanks 
  • Grease Interceptor Tanks 
  • Sediment Tanks 
  • Water Storage Tanks 


  • Chlorinators 
  • Biokinetic Filters 
  • Aerator 
  • Inlet Baffles 
  • Effluent Baffles & Filter 
  • Extension Tubes 
  • Lids 
  • Direct Drive PSX Pipe to Concrete Connectors 
  • Polywater Segmented Ring Seals 
  • Distribution Boxes 
  • Levelers 

Catch Basins & Accessories

  • Basins
  • Risers
  • Frames 
  • Grates 
  • Extensions 

Utility & Electric Structures

  • Light Pole Bases
  • Pull Boxes 
  • Switchgear Pads
  • Transformer Pads
  • Water Meter Boxes 
  • Garden Boxes

Manholes & Accessories

  • Standard Base Sections
  • Extended Base Sections 
  • Barrel Sections
  • Slab Tops 
  • Cones 
  • Grade Rings 
  • Direct Drive PSX Pipe to Concrete Connectors  
  • Polywater Segmented Ring Seals 

Parking Barriers

  • Faced Barrier Blocks 
  • Un-faced Barrier Blocks 
  • Parking Barrier with Trenches
  • Concrete car curbs with trenches 
  • Hi-Vis Plastic Encased Car Curbs 

Landscape Products

  • Modular Steps 
  • Landscape Blocks

Agricultural Products

  • T-Walls 
  • Anaerobic Digester Pit 
  • Custom Vaults 
  • Custom Collection Chambers 


  • Pump Stations 
  • Metering Pits 
  • Valve Vaults 
  • Meter Vaults 
  • Wet Wells 
  • Dry Wells 
  • Intake Vaults 
  • Overflow Structures 
  • Outlet Structures 

JMI Precast manufactures and delivers products to commercial, agricultural and municipal job sites throughout Western New York, the Southern Tier and Northwest Pennsylvania. We also provide delivery for residential sanitary structures and landscaping blocks.  

Since 2010, it’s been our mission to provide customers with quality standard and custom precast products. Safety and exceptional customer service are also our top priority. 



Many of our precast products are available for purchase at JMI Supply, located on Washington Street in Jamestown, NY.

Call 716-487-0168 to speak with our sales team about your precast needs.



Does Your Precast Measure Up?

  • Ideally, when ordering our precast products, internal dimensions are preferred.
  • Clear communication on whether you are using internal or external dimensions can save you in the end.

The Benefits of Precast Concrete

The demand for precast concrete products is on the rise and for good reason. Of the many economical and environmental reasons to use manufactured concrete products, durability and quick installation top the list.

Because the precast is manufactured in a factory-like setting, many factors that come into play with traditional pour in place concrete do not pertain. Such as weather and form consistency which lead to ideal curing conditions. 

Precast components are monitored and checked by certified QC technicians throughout the curing process until the moment the structure(s) are delivered to the job site. 

We Specialize in Custom Precast Products

Our capabilities include but are not limited to design, engineering, manufacturing and delivery of your precast concrete products. 

Where to Find Us


JMI Precast
1029 Poland Center Road
Kennedy, NY 14747


Questions about JMI Precast Products? Please call customer service at 716-456-1619 or fill out the form below.

Hours: Open Monday - Friday from 6:30am to 3:30pm