S-Line Contractors

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Southern California Office Location

We typically respond within 24 hours. Alternatively, feel free to give our office a call.

Contractor Lic. # 1053841

Class B – General

Class C10 – Electrical

S-Line Contractors is proud to be Fontana’s leading commercial general contractor, offering top-quality construction, renovations, and tenant improvements. With a reputation for excellence, efficiency, and innovation, we help businesses develop functional, modern, and sustainable commercial spaces that support long-term success.

Whether you’re planning new construction, structural upgrades, or commercial space renovations, our expert team delivers high-quality results with precision and professionalism.

Building and Construction Services in Fontana, CA

Fontana is a rapidly growing city with a thriving industrial, retail, and corporate sector. As a central hub for commerce and logistics in Southern California, Fontana requires high-quality construction services to meet the demands of expanding businesses.

At S-Line Contractors, we specialize in comprehensive commercial construction solutions, from site preparation and demolition to energy-efficient building designs and smart technology integration. We focus on compliance, sustainability, and advanced construction techniques, ensuring every project meets industry standards and exceeds expectations.

Our Services Include:

Commercial Construction

Industrial & Flex Warehouse Projects

  • Design-Build & Expansion
  • Structural Upgrades & Modernization

Residential Construction

Demolition

  • Selective & Full-Structure Demolition

Civil Work

  • Site Preparation & Clearing
  • Excavation & Grading

Concrete & Structural Work

  • Flatwork & Foundations
  • Structural Concrete
  • Storm Systems, Culverts & Retaining Structures

Plumbing Services

  • Water Line Installation & Replacement
  • Drainage Systems & Venting
  • Gas Line Installation
  • Fixture & System Upgrades

Mechanical & HVAC Systems

  • Rooftop HVAC Units & Installation
  • Ductwork & Ventilation Systems
  • Equipment Replacement & Upgrades
  • Preventive Maintenance & Testing

Electrical Services

  • Single-Line Design & Installation
  • Underground Power Systems
  • Inverters & Generators
  • Title 24 Compliance

Utilities & Infrastructure

  • Wet & Dry Utility Installation
  • Storm Drain & Sewer Systems

Exterior Finishes & Protection

  • Weatherproofing & Waterproofing
  • Fireproofing & Glazing
  • Awnings & Canopies
  • Building Aesthetics & Architectural Details
  • Parking Lot Construction & Striping
  • ADA Compliance

Ready to start your project?

Contact S-Line Contractors today for a free consultation and let’s bring your vision to life.

Why Choose S-Line Contractors in Fontana?

Experienced Construction Team – Skilled professionals committed to delivering top-quality work.
Customized Commercial Solutions – We tailor our services to meet your business needs.
Innovative & Sustainable Building Practices – Energy-efficient and environmentally friendly construction methods.
Commitment to Safety & Compliance – Strict adherence to local and national building regulations.
Timely & Budget-Conscious Execution – Ensuring projects stay on schedule and within budget.

If you’re looking for a trusted commercial general contractor in Fontana, S-Line Contractors is here to help. Contact us today to start your next construction project with a team dedicated to quality, innovation, and efficiency.