If you’ve got a crack in your slab or a door that won’t latch anymore, the first question isn’t “how bad is it” — it’s who performs a foundation inspection for your specific situation. A home inspector, a structural engineer, and a foundation contractor all “look at foundations,” but they answer different questions, carry different liability, and cost different amounts. In the Phoenix area, where expansive clay soil and caliche cause more foundation movement than most homeowners expect, picking the wrong professional first can waste weeks and money. This guide breaks down each role plainly, so when you call for a foundation evaluation — fulfilled by Concrete Repairman® — you already know what you’re paying for.
The three roles, plainly
These three professionals get confused constantly because their work overlaps at the edges. Here’s the honest breakdown of what each one is actually qualified and equipped to do.
What a home inspector covers (and doesn’t)
A general home inspector’s job is breadth, not depth. During a purchase inspection, they’ll walk the crawlspace or perimeter, note visible cracks, check for obvious slope in the floors, and flag anything that looks off — alongside the roof, plumbing, electrical, and every other system in the house. That’s the point of a home inspection: one person, one report, dozens of systems covered in a couple hours. What a home inspector typically won’t do is diagnose the cause of a foundation issue, measure elevation with a laser level, or recommend a specific repair method. If they see a crack wider than a hairline or a floor that’s visibly out of level, the standard advice is “have this evaluated by a specialist” — which is exactly the referral that sends people looking for a structural engineer or a foundation inspection from a contractor.
What a structural engineer provides (the stamped report)
A structural engineer is a licensed professional who evaluates the structure itself — footings, foundation walls, load paths — and issues a stamped, signed report. That stamp matters legally: it’s an engineer putting their license behind a professional opinion, which is why lenders, insurance companies, and courts accept it as evidence in a way they won’t accept a contractor’s walkthrough notes. Engineers typically don’t sell or perform repairs themselves, which is the core of their value — they have no financial stake in whether you spend $2,000 or $20,000 fixing what they find. A stamped foundation report in the Phoenix market generally runs in the ballpark of $500 to $1,000, sometimes higher for larger commercial structures or complex disputes.
What a foundation contractor diagnoses
A foundation contractor — the kind who does foundation crack repair, stem wall repair, or concrete leveling for a living — brings a different kind of expertise: pattern recognition from hundreds of local jobs. A contractor who’s repaired foundations across the Valley for decades has seen how Phoenix clay and caliche soil actually behave, season after season, in ways a generalist inspector or an out-of-town engineer might not have field experience with. A good contractor evaluation identifies the likely cause, measures the extent of movement, and lays out a repair scope with a written estimate. What it isn’t is a substitute for a stamped engineer’s report when one is legally or contractually required.
When you need a stamped engineer’s report
There are specific moments where only a licensed structural engineer’s stamped report will do:
- A lender or mortgage underwriter requires proof of structural soundness before closing
- You’re buying or selling a home and a foundation issue surfaced in the purchase inspection
- You’re in a dispute — with a builder, a seller, an insurer, or a neighbor — where a neutral, licensed opinion carries legal weight
- Local permitting requires engineered drawings for a major structural repair
In each of these cases, the report itself is the product. You’re not paying for repair work; you’re paying for an independent, defensible professional opinion that stands on its own if it ever needs to hold up to a lender, an attorney, or an insurance adjuster.
When a contractor evaluation is enough
Most homeowners don’t need a stamped report — they need to know what’s actually wrong and what it costs to fix. If you’re not closing on a sale, not in a dispute, and no lender is asking for paperwork, a written contractor evaluation is typically the faster, more affordable, and more practical path. A qualified foundation inspection should still document the visible evidence — crack width and pattern, floor elevation readings, door and window function, exterior grading — and result in a written scope, not a verbal guess. That written evaluation becomes the baseline you can compare against later, and if you do eventually need a stamped report, it gives the engineer a head start.
The neutral-diagnosis question — who has an incentive to sell you repairs?
This is the question homeowners raise most often on forums and review sites, and it deserves a straight answer instead of a dodge: yes, a contractor who diagnoses and repairs foundations has a financial interest in finding work. That’s not a secret, and pretending otherwise would be dishonest. A structural engineer who doesn’t perform repairs has no such incentive — that’s precisely why their report carries more legal weight in a dispute or a real estate transaction.
Our evaluations are evidence-based and written, not a sales pitch dressed up as an inspection — if what you actually need is a stamped report for a lender or a dispute, we’ll tell you to hire an independent structural engineer instead of trying to sell you a repair you don’t need.
Not Sure How Bad It Is?Get Your Foundation Looked At
A quick inspection tells you what is really going on beneath the surface — and we will send a written estimate.
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That’s the standard Concrete Repairman® holds to: a written estimate based on measured evidence, not a “free inspection” designed to close a sale on the spot. James Belville and the team have spent 30+ years diagnosing Phoenix-area foundations, and that track record — reflected in a 5.0-star rating across 269 Google reviews — is worth more long-term than pushing unnecessary work. If your situation calls for a lender’s stamped report, an honest contractor tells you that up front, before you spend money on the wrong evaluation.
Frequently Asked Questions
Who performs a foundation inspection?
Three types of professionals can perform a foundation inspection, depending on what you need: a general home inspector during a real estate purchase (broad but not specialized), a licensed structural engineer for a stamped, legally defensible report, or a foundation contractor for a specialist diagnosis and written repair evaluation. Which one you need depends on whether you need a legal document or a practical repair plan.
Do I need a structural engineer or a foundation contractor?
If a lender, insurer, court, or real estate transaction requires an independent, stamped opinion, hire a structural engineer. If you simply want to know what’s causing a crack or an uneven floor and what it will cost to fix, a foundation contractor’s written evaluation is usually sufficient and considerably more affordable.
What’s the difference between a home inspector and a structural engineer?
A home inspector is a generalist covering the entire house — roof, systems, and structure — in a single visit, usually as part of a real estate purchase. A structural engineer is a licensed specialist focused solely on the structure, and their findings come as a stamped, signed report that carries legal and financial weight a general home inspection report doesn’t.
How much does a structural engineer cost for a foundation?
A stamped structural engineer’s report for a residential foundation in the Phoenix area typically runs about $500 to $1,000, though costs run higher for larger commercial buildings or more complex disputes. Compare that to a foundation contractor’s evaluation, which is often lower cost but doesn’t carry a professional stamp.
Is a foundation contractor’s inspection biased?
A contractor who both diagnoses and repairs foundations does have a financial incentive to find work — that’s a fair concern and worth naming honestly. The way to manage it is to insist on a written, evidence-based evaluation rather than a verbal “free inspection,” and to ask the contractor directly whether your situation actually calls for an independent structural engineer instead.
Book a foundation evaluation (written report)
Whether you need a practical repair scope or guidance on whether a stamped engineer’s report is the right next step, start with an honest, written foundation inspection. If your situation involves a real estate purchase, ask about our home inspection foundation evaluation, built specifically for buyers and sellers navigating a transaction deadline. Contact Concrete Repairman® to book a written evaluation — not a sales visit — and get a clear answer on what’s actually happening under your home.