Our Story · Founded 1982
Wisconsin’s Trusted Interior Contractors
Since 1982, our focus has been to give our customers the highest quality “Grade A” products and services — all in a time-saving, efficient manner, and at a competitive price.
— Kathy & Jim Yaresh, Founders
With 8 to 10 years of experience under their respective belts, Kathy & Jim Yaresh started Grade A Construction in 1982 and incorporated in 1983. They started with a crew of five drywallers and added skilled labor every year since.
Today, Grade A is a Woman-Owned Business Enterprise serving commercial and residential builders and developers across Southeastern Wisconsin.
Company History
Four Decades of Growth
1982
Kathy & Jim Yaresh found Grade A Construction with a crew of five drywallers. Incorporated in 1983.
1990
Moved from home office to a 4,500 sq ft facility in southwest Waukesha. Insulation division added.
1995
Grade A adds a complete Paint and Stain division, expanding services across all interior finishes.
1998
A brand-new 10,500 sq ft facility built in Delafield, Wisconsin — the company’s permanent home.
2003
6,500 square feet added to the Delafield office and warehouse to support continued growth.
2012
Kathy Yaresh becomes majority owner, earning Women-Owned Business Enterprise certification.
Today
Grade A serves commercial and residential builders across Southeastern Wisconsin with six specialized divisions.

157 Enterprise Rd, Delafield, WI
Our Team
The People Behind the Work
Five decades of combined leadership experience drive Grade A’s six divisions — from field operations to finance, every role is held by someone who takes pride in the Grade A name.
Kathy Yaresh
President & Majority Owner
Kathy manages Human Relations, Payroll, Accounts Payable and Receivables since incorporating in 1983. Became majority owner in 2012, earning Women-Owned Business Enterprise status.
Jim Yaresh
Vice President of Operations
Jim’s focus is on production, working primarily with large, multiple-unit builders and developers across Southeastern Wisconsin.
Wade Zaffke
Field Operations Manager
Supervisor of Commercial Metal Studs & Acoustic Ceiling Tile with over 30 years of experience. Keeps every project on schedule and problem free.
Danny Semrow
Spray Texture Supervisor
Starting his career with Grade A over 30 years ago, Dan leads the design, development and delivery of textures for every project.
Mission Statement
What Drives Us
Specializing in insulation, drywall and painting, Grade A strives to empower, energize and encourage personal and professional growth in all employees — ensuring every staff member is equipped with the tools to accomplish their jobs effectively, efficiently, and in a timely manner. Our commitment to quality craftsmanship demands our staff to be versatile and innovative to meet our customers’ expectations. Grade A maintains a high level of quality service and products at a competitive price, applying the basic principles of respect, courtesy and integrity.
Service Area
Southeastern Wisconsin & Beyond
Serving builders and developers from Janesville to the Wisconsin Dells, the Fox Valley to Lake Michigan — with Milwaukee, Waukesha, Racine and Kenosha as our core markets.
Milwaukee MetroWaukeshaRacine & KenoshaFox ValleyMadisonDelafieldWisconsin Dells
Professional Memberships
Industry Recognized & Certified
Grade A Construction holds certifications and memberships across the construction industry, reflecting our commitment to professional standards, quality products, and ongoing training.
Metropolitan Builders Association (Milwaukee Metro, headquartered in Waukesha)
Better Business Bureau
Owens Corning Certified Energy Professional (CEP)
Energy Star Advisory Board Member
Certified, Licensed BIBS Contractor
Certified Woman-Owned Business Enterprise
Certified Spray-Foam Insulation Applicators, Spider Insulation Certified by Johns Manville
Ready to Start Your Project?
Free quotes · Southeastern Wisconsin · Commercial & Residential
