About DEMCON Design & Build

Excellence in Interlock, Concrete, and Asphalt Paving


DEMCON Design & Build is a locally-owned and operated company rooted in a simple philosophy: do the job right, every time. With a specialized focus on interlock driveway installations, we’ve earned a reputation for integrity, professionalism, and outstanding workmanship across Guelph and surrounding areas.

What Sets Us Apart

We aren’t just installers — we’re designers, builders, and problem solvers. Every project starts with a conversation about your goals, preferences, and budget. From there, our team develops a plan that aligns perfectly with your vision, combining aesthetics and durability for results that impress.

We take pride in every detail, whether we’re laying an interlock driveway in Rockwood, pouring concrete for a commercial sidewalk in Kitchener, or paving an asphalt parking lot in Fergus.

Our Team

Our skilled professionals are trained in the latest materials, technology, and paving methods. We stay ahead of industry trends while using time-tested techniques that guarantee long-term performance.

Serving Residential & Commercial Clients

DEMCON works with homeowners, developers, property managers, and business owners to deliver efficient, code-compliant paving services. Whether you need a large commercial lot or a small backyard patio, we bring the same level of dedication and quality.

Our Service Areas

  • Guelph
  • Fergus
  • Elmira
  • Salem
  • Rockwood
  • Acton
  • Maryhill
  • Arthur
  • St. Jacobs
  • Kitchener
  • Cambridge
  • Nearby regions

Let us bring your outdoor surfaces to life. Get in touch to learn more about our full-service capabilities.

Get in Touch

Have Questions? Contact Our Guelph Interlock, Concrete & Asphalt Company Today!