Rylko Builders is doing business as JKR Builders in Arizona. At JKR Builders, we combine vision, craftsmanship, and process excellence to deliver projects that exceed expectations. We specialize in commercial real estate development, tenant improvements, and large-scale construction projects.

Industries We Serve

Corporate campuses, finance, technology, retail, tenant-occupied properties, and commercial real estate developments.

Our Services

  • Preconstruction & Planning
  • General Construction
  • Design-Build Solutions
  • Program & Project Management
  • Tenant Improvements
  • Renovations & Upgrades
  • Owner Representation

How We Work

  • Robust subcontractor selection
  • Transparent document control (drawings, submittals, RFIs)
  • Coordinated project initiation
  • Clear meeting minutes and progress tracking
  • Proactive field management by our leadership team
  • Transparent, rare change orders

Why Choose Us?

We are guided by core values of Integrity, Vision, Excellence, Commitment, and Collaboration. Every decision and detail reflect our dedication to building not just structures, but lasting relationships.

Our Arizona Team

Sherry Rylko, President, JKR Builders

As President of JKR Builders, Sherry Rylko leads the company with vision, integrity, and an unwavering commitment to excellence. Under her leadership, JKR has become synonymous with achievement and client-focused service across California and beyond. Sherry’s strategic oversight ensures that every project reflects the firm’s core value—transparency, collaboration, and precision—while also driving innovation and long-term growth. Her ability to balance big-picture vision with attention to detail makes her the guiding force behind JKR's reputation as a trusted building partner.

Steve Rylko, Chief Operations Officer, JKR Builders

Steve Rylko, Chief Operations Officer of JKR Builders, ensures the seamless execution of projects from start to finish. With deep expertise in construction management and field operations, Steve leads with a focus on efficiency, accountability, and teamwork. His hands-on leadership style keeps projects on schedule, within budget, and aligned with client goals. By fostering strong relationships with subcontractors, architects, and clients alike, Steve drives the collaborative culture that sets JKR apart. His operational excellence is the backbone of the company’s ability to consistently deliver stellar results.

Jason Knapmeyer, Chief Business Development Officer, JKR Builders

With over 30 years in commercial construction and real estate development, Jason Knapmeyer drives growth and client partnerships at JKR Builders. Known for his hands-on expertise and vision, he connects people, ideas, and opportunities to deliver exceptional results. Jason ensures every collaboration reflects JKR's commitment to integrity, excellence, and lasting client success.

Let’s Build Together

From small tenant improvements to large commercial campuses, JKR Builders delivers on time, on budget, and with unmatched quality.

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