Strategic Partners

Interested in becoming a Strategic Partner? Please contact the WMA office by email ( or phone at 414-276-0667 for more information. 




County Materials Corporation

A Trusted Resource for Construction and Landscape Products

County Materials Corporation is a family-owned, American-based manufacturing organization of companies that is recognized and trusted as a leading manufacturer and prominent industry resource for diverse construction and landscaping products and services.

Backed by skilled and dedicated employees, County Materials is committed to exceeding expectations and enhancing our personalized customer service.

Together, with its affiliate companies, the organization provides a wide range of vertically integrated products and services combined with more than 90 years of experience in the construction industry. The organization operates more than 40 locations across the United States, providing product solutions that are readily available.

Products include:

  • Concrete Masonry Units
  • Brick and Stone
  • Cast Stone Products
  • Masonry Supplies
  • Prestress and Bridge Products
  • Pipe and Precast Products
  • Water Management Materials
  • Ready Mix and Aggregates
  • Landscaping Products


Northfield Block

Contact: Gina Jones
2200 S Main St
West Bend, WI 53095
262-338-5700 x104

As the recognized leader in concrete masonry technology and design, Northfield Block is a proud partner and sponsor of the Wisconsin Masonry Alliance Association. Since 1949, we’ve maintained the confidence of builders, architects and consumers through our innovative technology, quality, committed service and on-time deliveries. Northfield Block is the leading manufacturer of masonry products in the Midwest and is an Oldcastle® company.
You’ve probably seen Oldcastle Masonry before in the places you most enjoy. We manufacture the products used in the interiors and exteriors of buildings across the nation. Join the satisfied customers who have chosen North America’s largest manufacturer of building products, Oldcastle® Architectural. We are the face of masonry.



Preblended Masonry Products and Jobsite Silo Systems

Technology and innovation is what advances industries; the masonry industry is no exception. Since our founding in 1990, the SPEC MIX® organization initiated the charge to increase the integrity of masonry construction by introducing preblended, high performance mortars and grouts in addition to innovative material delivery systems. In particular, SPEC MIX Polymer Modified Stone Veneer Mortar and Integral Water Repellent Mortar as well as Self Consolidating Grout are just a few of our engineered products that when coupled with our efficient silo systems provide mason contractors with resources that increase their productivity, safety and profitability.  For over 20 years we’ve partnered with mason contractors across the country to continuously improve the means and methods of masonry construction. From changing architectural product specifications, to optimizing our mortar and grout mix designs to sponsoring masonry training programs, working with mason contractors and supporting the trade is our core mission. 

Our QUIKRETE of Wisconsin operation located in Sussex is one of 40 SPEC MIX producing plants located throughout North America. By utilizing its computer batching system, the Sussex facility has supplied high quality SPEC MIX mortars and grouts with silos to thousands of projects ranging from the State Capitol building in Madison to EPIC Systems Corporate Center in Verona to Lambeau Field in Green Bay.  Whether the job is large or small, our experienced sales team welcomes the opportunity to collaborate with building owners, designers, engineers and contractors to create and execute innovative project solutions. For more information on our products and how we can help your project plans, please contact your local SPEC MIX representatives listed below:


Halquist Stone



Milwaukee Mason Contractors Association

Milwaukee MCA 
c/o ACEA
17100 W Bluemound Rd, Ste 102
Brookfield, WI 53005

2017 Contractor Members

Arteaga Construction, Inc

4000 South Pine Street
Milwaukee, WI 53207
p: 414-744-7944
f: 414-744-2774

Concrete & Masonry, Inc.

2746 S. 166th Street 
New Berlin, WI 5311
f: 262-786-4675

 Corner Stone Construction 

4204 N. NEwville Road
Janesville, WI 53545
p: 608-758-4005
f: 608-758-4297

J.H. Hassinger, Inc.

N60 W16389 Kohler Avenue
Menomonee Falls, WI 53051
p: 262-252-4701
f: 262-252-4227

KMI Construction

17150 W. Pheasant Drive
Brookfield, WI 53005
p: 262-548-0632

Superior Masonry Builders, Inc.

12699 West Arden Place
Butler, WI 53007
p: 262-781-4777
f: 262-781-1774

T.V. John & Son, Inc.

5201 North 124th Street
Butler, WI 53007
p: 262-781-9304
f: 262-781-9406

Walsh Masonry

N2081 Maple Street 
Ixonia, WI 53036
p: 920-261-8580