Suncore Construction & Materials (formerly Sunroc)

Anyone who has driven SR-18 north of Snow Canyon in the last five years has driven on Suncore concrete and asphalt. The company was Sunroc Corporation until July 2025, when Spanish Fork-based parent Clyde Companies consolidated the brand across its seven-state Intermountain West footprint and rolled out the new Suncore identity. The St. George yard at 1825 East 3850 South is the primary materials and paving arm for Washington County and has been for years.

A Clyde Companies Operating Unit

Suncore sits inside Clyde Companies, Inc. — a multi-generational Utah construction holding group whose other operating brands include Geneva Rock on the ready-mix side and W.W. Clyde on the heavy-civil side. The corporate structure matters because it explains the capabilities stack: Suncore comes to a Southern Utah project with its own pits, its own batch plants, its own asphalt plant, and its own trucking. Vertical integration of that depth is rare in the 435 and is the practical reason the company shows up on most large public bids.

What They Build

The capability list runs roadway excavation and grading, underground utility construction, structural concrete, ready-mix delivery, asphalt production and paving, and aggregate supply. The St. George branch produces ready-mix and asphalt locally. Suncore — under the prior Sunroc brand — built the SR-18 passing lanes north of St. George in time for the 2022 Ironman World Championship, a job that included rock-blasting during initial excavation when crews hit unanticipated bedrock. The Associated General Contractors of Utah lists the firm under excavating, utility construction, highway construction, foundations, tilt-up, and industrial piping.

Where Suncore Fits

For a 435 listing, Suncore is the heavy-civil and materials backbone for large public and commercial projects: subdivision mass grading on master-planned communities, UDOT roadway packages, municipal utility extensions for the cities of St. George, Washington, and Hurricane, and tilt-up commercial pads. The scale, vertical integration, and Clyde parentage put Suncore in a different tier than owner-operator excavation outfits — important context for any homeowner trying to right-size a contractor to a job. A single-family driveway or a backyard dirt push is not Suncore’s lane. A subdivision rough grade, a UDOT contract, or a commercial-pad excavation is exactly Suncore’s lane.

Suncore in the 435

Out-of-state competitors parachute into UDOT contracts and leave when the work is done. Suncore is in St. George permanently — the yard is owned, the batch plant runs daily, and the brand consolidation under the new name is a long-horizon move, not a tactical rebrand. For directory purposes, this is a heavy-civil firm with a permanent 435 address.