⚡ California Licensed Engineers — 7,000+ Projects Completed — (909) 570-0273
California Licensed Engineers
Ontario · San Bernardino County · 7,000+ Projects Completed

Ontario Structural Engineers
Speak With A Licensed Engineer Today

Inland Empire structural engineering for industrial and commercial projects. Our California licensed engineers provide structural engineering, permit plans, inspections, and engineering calculations for residential, commercial, and industrial projects in Ontario.

  • Residential, commercial & industrial engineering in Ontario
  • Permit-ready plans, calculations & structural inspections
  • Familiar with local building departments & permitting requirements
  • Speak directly with a California licensed engineer — fast response

95% of New Clients Get a FREE Quote on First Call

CA License #C 98780
7,000+ Projects Completed
Fast Response Available
Ontario & San Bernardino County
Need Engineering Plans or Inspections in Ontario?
(909) 570-0273

Structural Engineering in Ontario

Seismic Expertise

Ontario is in a seismic zone. Seismic design required per building code.

Soil & Foundations

Inland Empire soils include sandy loam and alluvium. Foundation assessment important.

Local Permitting

Ontario building department reviews efficiently. We prepare code-compliant designs.

Common Permit Projects We Engineer in Ontario

Most Ontario homeowners don't need "structural engineering" — they need the specific document their San Bernardino County building department requires for their project. These are the permit projects we engineer every week in Ontario.

Deck & Patio Permits

Structural letters or drawings for new decks, deck rebuilds, and second-story decks.

Engineering for this project in Ontario

Patio Covers & Pergolas

Footing, post, and attachment engineering for covered outdoor structures.

Engineering for this project in Ontario

Carport & Garage Conversions

Framing and foundation engineering to convert garages and carports into living space.

Engineering for this project in Ontario

Window & Door Enlargements

Header and wall engineering when you enlarge, close, or relocate openings.

Engineering for this project in Ontario

Shed & Accessory Structures

Plans and calculations for larger sheds, studios, and outbuildings that need permits.

Engineering for this project in Ontario

Solar Panel Roof Mounting

Roof load letters and structural analysis required for solar permits.

Engineering for this project in Ontario

Retaining Walls & Yard Terracing

Engineered walls for slopes, terracing, and drainage on hillside lots.

Engineering for this project in Ontario

Kitchen & Bath Wall Removal

Beam and header engineering to open floor plans safely — with permit plans.

Engineering for this project in Ontario

Foundation Crack & Settlement Reviews

Crack evaluations and settlement inspections with stamped findings.

Engineering for this project in Ontario

Not sure whether your Ontario project needs engineering for the permit? Call — we know what your building department requires.

Ontario Building Permits, Codes & Regulations

California Licensed Engineers, Inc. is deeply familiar with the Ontario building permit process and San Bernardino County requirements. Here's what you need to know about permitting in Ontario: **Building Department Jurisdiction:** Ontario falls under San Bernardino County building code enforcement. Inland Empire cities follow the California Building Code with local amendments. High-wind zones apply in some areas. Expansive soils and liquefaction potential require geotechnical assessment. Fire hazard severity zones affect construction requirements in foothill areas. **Key Code Authorities:** Riverside Building & Safety Division; San Bernardino Building & Safety; Various city building departments. **What We Provide:** Our permit-ready plan sets include all required structural calculations, lateral analysis, foundation design, framing plans, connection details, and California-licensed engineer stamps. We coordinate with your architect, contractor, and geotechnical engineer to ensure a complete, approvable submittal package. **Typical Services in Ontario:** Foundation Engineering, Wind-Resistant Design, Seismic Retrofitting, Industrial Structural Design, Residential Permit Plans, Commercial Engineering. **Cost Expectations:** Inland Empire structural plans range $1,500–$5,000 for residential and $5,000–$30,000 for commercial/industrial. Warehouse and distribution center work is a specialty. **Timeline Expectations:** Inland Empire plan review averages 2–4 weeks for residential. Larger commercial and industrial projects may take 6–10 weeks. Fast-track options are available in many cities. Call us to discuss your specific Ontario project and get a tailored timeline and cost estimate.

Engineering Services in Ontario

Call to speak directly with a Ontario engineer about any of these services.

Industrial Structural Engineering

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Foundation Engineering

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Commercial Projects

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Residential Work

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Discuss Your Ontario Engineering Project

Call today — speak directly with a California licensed engineer. No voicemail, no delays.

Call Ontario Engineers — (909) 570-0273

Ontario Engineering Costs & Project Timelines

Transparent pricing and realistic schedules for your Ontario project.

Cost Expectations

Inland Empire structural plans range $1,500–$5,000 for residential and $5,000–$30,000 for commercial/industrial. Warehouse and distribution center work is a specialty.

Project Timelines

Inland Empire plan review averages 2–4 weeks for residential. Larger commercial and industrial projects may take 6–10 weeks. Fast-track options are available in many cities.

Engineering Problems We Solve in Ontario

With 7,000+ projects completed, our engineers have solved every challenge across California.

Plan rejection from the city?

We redesign for code compliance and resubmit — addressing every correction.

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Need professional structural assessment?

We provide comprehensive professional inspections with detailed reports.

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Foundation evaluation needed?

We assess conditions and engineer solutions for settlement or damage.

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Permit plans required quickly?

We provide code-compliant stamped plans with engineering calculations.

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Load-bearing wall removal?

We analyze structure, design beam systems, and provide stamped permit plans.

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Commercial or industrial project?

Full-service engineering support for any project size — call to discuss.

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Why Ontario Clients Choose Us

7,000+ projects completed across California. Trusted by homeowners, contractors, developers, and commercial property owners.

7,000+ Projects Completed

Proven track record of successful engineering across all project types.

Speak Directly With Engineers

No voicemail — call and speak with a licensed California engineer immediately.

Permit-Ready Plans

Stamped plans accepted by all California building departments on the first submission.

Fast Response Available

Same-week availability in most areas — we move at the speed of your project.

Residential, Commercial & Industrial

Full-service engineering for any project type or size in Ontario.

California Licensed & Insured

CA License #C 98780 — professional engineering you can trust.

Ontario Engineering — Frequently Asked Questions

Have more questions about Ontario engineering?

Call and speak directly with a licensed California engineer — we're ready to help.

Call For Engineering Help — (909) 570-0273

Prefer to Write? Request Your FREE Ontario Quote

Send us your project details — a licensed California engineer will respond within 24 business hours.

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Quotes delivered within 24 business hours

Local Service Area

Structural Engineering Throughout Ontario & Nearby Communities

Our licensed engineers serve Ontario and all surrounding neighborhoods and cities in San Bernardino County. We know local codes, building departments, and soil conditions across the entire region.

UplandSan Bernardino County
MontclairSan Bernardino County
ChinoSan Bernardino County

Don't see your area? We serve all of San Bernardino County — call to confirm.

Call to Confirm Service in Your Area — (909) 570-0273
7,000+ Projects Completed · Ontario Engineering Specialists

Ready to Move Forward in Ontario?
Speak With An Engineer Today

Call today to speak directly with a licensed California engineer about your Ontario project. Residential, commercial & industrial engineering — permit plans, inspections, calculations, and more.

Call (909) 570-0273

Engineering Services in Ontario

  • Structural Inspections
  • Permit Plans & Calculations
  • Seismic Retrofit Engineering
  • Foundation Engineering
  • Load-Bearing Wall Engineering
  • Commercial & Industrial Engineering

Speak With An Engineer

(909) 570-0273
Call to speak directly with a licensed engineer
  • Ontario
  • San Bernardino County
  • Rancho Cucamonga
  • Fontana
  • Upland
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