Construction Management

Expert Construction Management
in Los Angeles

Horizon Building Company provides comprehensive construction management services for commercial, multifamily, and residential projects throughout Los Angeles and Southern California. As your general contractor, we assume full responsibility for delivering your project on time, within budget, and to the highest quality standards.

Our construction management approach is built on institutional-level processes refined through over $600 million in project delivery. Principals John J. Daher and William W. Daher bring hands-on experience from Clark Construction, one of the nation's largest general contractors, applying those same rigorous standards to every project regardless of size.

Whether you are building a ground-up multifamily development, renovating a commercial office space, or executing a complex tenant improvement, our team provides the site supervision, subcontractor coordination, and cost control necessary to protect your investment and achieve your project goals.

We understand that construction management in Los Angeles presents unique challenges including complex permitting processes, seismic requirements, coastal zone regulations, and a competitive subcontractor market. Our deep local knowledge and established trade relationships allow us to navigate these challenges efficiently while maintaining the quality and schedule your project demands.

Scope of Services

What's Included

Preconstruction Planning

Early-stage planning including project scoping, phasing strategy, logistics coordination, and constructability review. We identify and resolve issues before they reach the field — saving time and money throughout construction.

Competitive Bidding

Structured bid processes with qualified subcontractors — including RFP development, scope leveling, bid analysis, and contract negotiation. We drive competitive pricing without sacrificing quality or accountability.

Value Engineering

Systematic analysis of design and specification alternatives to achieve project objectives at reduced cost. We identify savings opportunities without compromising performance, aesthetics, or long-term value.

Cost Control

Real-time cost tracking, change order management, contingency analysis, and monthly cost reports. We maintain full budget transparency so you always know exactly where your project stands financially.

Procurement Management

Strategic procurement of long-lead materials, equipment, and specialty subcontractors to protect the project schedule. We manage logistics, submittals, and delivery coordination from early procurement through installation.

Construction Administration

Full-scope field oversight including subcontractor coordination, RFI management, submittal review, inspection scheduling, and day-to-day site management throughout the construction phase.

Quality Assurance

Comprehensive QA programs including inspection protocols, material testing coordination, punch list management, and compliance verification against project plans and specifications.

Schedule Oversight

Detailed CPM scheduling with regular updates, look-ahead planning, milestone tracking, and proactive delay mitigation. We protect your schedule and your carrying costs from groundbreaking through certificate of occupancy.

The Horizon Difference

Why Choose Us

  • Over $600M in combined construction management experience across institutional, commercial, and residential projects
  • Principals previously managed projects at Clark Construction, one of the nation's largest general contractors
  • Hands-on ownership involvement on every project ensures accountability and rapid decision-making
  • Licensed California general contractor (#01118216) with deep knowledge of local codes, permitting, and inspection requirements
  • Transparent communication with weekly reporting, open-book accounting, and real-time budget visibility
  • Proven track record delivering projects on schedule and within budget across Los Angeles and Southern California

Ready to Start Your Project?

Contact us today for a consultation. Our principals will personally review your project and provide a detailed proposal for construction management services.

Request a Proposal