What Is a Civil Engineer, a Professional Engineering (PE) License, and Why You Should Contact One For Your Home’s Needs.

By Omied Arianejad, PE, Geotechnical and Forensic Engineer

When you notice a crack in your drywall or a door that won't latch, your home is trying to tell you something. Before inviting a repair salesperson, often motivated by commissions into your home, understand the difference between a qualified diagnostic expert and a product focused seller.

What Is a Civil Engineer? 

Civil engineers design, build, and maintain the infrastructure that shapes our world: roads, bridges, water systems, and buildings. In residential contexts, especially those specializing in geotechnical or structural engineering, the civil engineer evaluates how soil conditions and foundation design interact with your home. In Arizona, where expansive clay soils are common, these soils swell with moisture and shrink during dry periods, causing differential movement. While a foundation repair company often targets visible symptoms (like patching a crack), a civil engineer investigates the underlying cause, preventing you from spending tens of thousands on installing piers, polylevel, or other invasive fixes when simpler targeted solutions will suffice.

What Is a PE License and Why is it Important?

Not all engineers hold a PE license. The PE license is a state-issued credential that represents the highest level of competence, ethics, and accountability in the field. 

To earn a PE license, an engineer must typically:

• Hold a bachelor's degree from an accredited engineering program.

• Pass the Fundamentals of Engineering (FE) Exam (6 hour exam).

• Work at least 4 years of progressive experience under a licensed PE.

• Pass the Principles and Practice of Engineering (PE) exam (8 hour exam). 

The PE license is crucial for several reasons:

• Legal authority -  Only a licensed PE has the legal right to sign and seal engineering plans or reports. By "stamping" a document, the engineer takes full professional and legal responsibility for the accuracy and safety of that evaluation. This creates a level of personal liability that a standard contractor simply does not have. Furthermore, only a licensed engineer can call themselves an engineer and or advertise as an engineer

• Public protection - PEs are legally bound by a strict code of ethics that requires them to place the safety, health, and welfare of the public above all else. This means a PE is ethically prohibited from recommending a "fix" that isn't necessary or safe.

• Credibility - A PE provides a "Standard of Care" that is recognized by courts and insurance companies. This means their evaluation is based on established scientific principles providing you with a document that holds weight if you ever decide to sell your home or file an insurance claim.

How to Verify a Professional Engineer's License Is Active

To ensure an engineer is currently authorized to practice, visit your state’s official licensing board website (often listed under "License Verification" or "Roster Search"). Search by name or license number and confirm their status is Active or In Good Standing. Practicing without a license is illegal and can invalidate any reports associated with your home. Here in Arizona you can visit https://btr.az.gov/ for more information. 

Engineer vs Repair Company: Who Should You Call?

Homeowners often call foundation repair companies when noticing cracks, uneven floors, or doors that won’t latch. However, many such companies operate on commission-based sales models, which can incentivize recommending expensive solutions (like $20,000+ pier systems) even for minor or cosmetic stresses.

This is where a licensed civil engineer makes a critical difference:

• Unbiased Assessment - Not every crack means your house is falling down. Some signs of movement are purely cosmetic stresses caused by natural settling or seasonal shifts. An engineer provides an objective evaluation without the incentive to sell you repair products for your home.

• Comprehensive Geotechnical Expertise - Civil engineers understand soil mechanics and how different soil types interact with a foundation. The engineers look beyond the visible symptoms to see if the earth itself is the issue, identifying underlying geotechnical factors a contractor might miss.

• Proper Diagnosis vs. "The Rubber Stamp" - It is important to know that many foundation repair companies have PEs on staff. However, these engineers are typically used to review pier load calculations and to "rubber stamp" permits. The engineers are not evaluating whether the piers are actually needed for the foundation of the home. An independent civil engineer will evaluate the home and foundation to identify the root causes of the stress. 

• Long-Term Cost Savings - While an engineer charges an upfront inspection fee, this "diagnosis" frequently saves homeowners tens of thousands of dollars by ruling out unnecessary work. Note, the upfront fee is not commission based. 

The Bottom Line: Before committing to piers, polylevel, or other foundation repairs, contact an independent licensed Civil Engineer for  an objective evaluation of your home and foundation . This ensures your money is spent only on necessary effective solutions, not sales driven product recommendations. Identifying the root causes of the stress protects your home and wallet long term.