Commercial Roof-Mounted & Ground-Mounted Solar – San Diego County

Power your property. Lower your costs. Future-proof your business.

Inspections Within 24-48 Hours

Licensed and Insured Since 1988

Lifetime Manufacturer Warranties

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Solar panels

Roof-Mounted & Ground-Mounted Solar

Battery

Battery Backup & Storage Systems

Solar + Roofing Combo Packages

Power your property. Lower your costs. Future-proof your business.


Lower your energy costs, meet sustainability goals, and boost property value with expert-installed commercial solar.


TAG Roofing & Solar designs and installs high-efficiency commercial solar systems across San Diego County—including rooftop, carport, and ground-mounted arrays. We serve retail centers, warehouses, office parks, HOAs, schools, and industrial buildings with code-compliant, rebate-ready solutions designed for long-term performance.


Why Choose TAG for Commercial Solar Installations


  • Experienced with flat roofs, tilt-racks & complex commercial installs
  • Ballasted, penetrating & hybrid mounting systems available
  • Custom carport, canopy & ground-mount designs
  • Full permitting & utility coordination with SDG&E & SCE
  • Proven success with private, nonprofit & public sector clients


What to Expect When Hiring TAG


  • Project Scope & Site Evaluation: We begin with an on-site evaluation of your roof, electrical infrastructure, shading, and load capacity.
  • Custom System Design: Our engineers design a tailored solar solution using commercial-grade panels, inverters, and mounting systems.
  • Permitting & Utility Interconnection: TAG manages all AHJ permits and utility paperwork under NEM 3.0 or your provider’s current interconnection program.
  • Installation & Quality Control: Our professional solar crews install each array with precision—securing racking systems, sealing penetrations, and adhering to all fire and setback codes.
  • Commissioning & Handoff: Once complete, we test system performance, coordinate utility approval, and train your team on system monitoring and maintenance.


Time to Install: 6–12 weeks (depending on system size and site complexity)
Cost Range: $75,000–$1M+ (based on system size, mounting type, and upgrades)


Pricing Disclaimer: All cost ranges are estimates. Final pricing will vary based on your project’s scope, site conditions, and material selection. A written proposal will be provided following inspection.


Financing Options


  • Commercial solar loans
  • 30% Federal Investment Tax Credit (ITC)
  • MACRS accelerated depreciation


All financing is subject to approval. We’ll help you explore funding options that match your business model—no pressure, no surprises.


Ready to reduce overhead and turn your property into a clean energy asset?


Contact TAG Roofing & Solar today for a site evaluation and custom solar proposal.

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Key FAQs

  • Is roof-mounted solar safe for flat commercial roofs?

    Yes. We use engineered ballast or anchor systems appropriate for your roof type and structural load.

  • What’s better: ground-mount or roof-mount?

    It depends on space, shading, and visibility. Ground-mounts offer flexibility; roof-mounts make use of unused space.

  • Do I need a new roof before going solar?

    Not always. We evaluate your roof’s condition. If nearing end-of-life, we may recommend reroofing or bundling it with your solar project.

  • Can the system scale as my business grows?

    Absolutely. We design with future expansion in mind, including the integration of EV charging stations and battery storage.

Power your business with proven solar technology—professionally installed and backed by a trusted partner. TAG Roofing & Solar builds scalable, high-performance solar systems designed to deliver long-term savings and sustainability.

TAG Roofing sets the bar. The first problem I had was a leaking chimney. My second issue involved an attic space that was not properly vented so during the summer the house would start to bake in the late afternoon. I had three roofing companies out to bid the job. Sure enough the bids and suggested fixes were all over the place. Then came Karl with TAG roofing….he explained everything with great detail and gave several options that were within my budget. The chimney is fixed and the attic space is significantly cooler. Karl was prompt with the bids and followed up with me when the job was finished. I would not hesitate to recommend him to friends and family.

Joseph V.