Narrow the field before you request proposals.

Black Diamond Paving & Concrete

Hayward, California

Black Diamond Paving & Concrete is a Hayward-based pavement contractor serving property owners and managers across Northern, Central, and Southern California. The company focuses on planned asphalt paving, patch paving, sealcoating, crack sealing, ADA upgrades, concrete work, and pavement maintenance for properties where scheduling, resident or tenant coordination, and long-term surface performance matter. Its public materials emphasize clear proposals, project planning from the client perspective, and experience with HOA communities, apartment communities, retail, commercial, industrial, and nonprofit properties.

Infinacon

Hayward, California

Infinacon is a Hayward-based contractor serving Northern California with traffic control, road markings, striping, thermoplastic markings, ADA upgrades, asphalt paving, concrete, seal coat, planning, engineering, and permitting support. The company lists service areas across the Bay Area and Northern California, including Oakland, San Jose, Sacramento, Fremont, San Mateo, Santa Clara, Concord, Stockton, and other markets. It is a practical fit for property owners and managers who need coordinated paving, markings, and accessibility upgrades from one contractor.