Quick answer
A foundation inspection is a visual examination of a foundation and the clues around it, such as cracks, slopes, gaps, drainage and grade, made to describe its condition at one point in time and to say whether further evaluation is needed.
Most foundation inspections are visual and do not include digging, soil tests or engineering calculations. The report can flag a concern. Deciding the cause, or how to fix it, is a separate task that often belongs to a licensed engineer.
Quick facts
The key facts about Foundation Inspection, with sources:
- Method
- Visual look at readily accessible parts, not a dismantling 1
- Home inspection standard
- Inspector inspects and describes the foundation 1
- Not required of a home inspector
- Engineering analysis or an opinion on structural adequacy 1
- Texas example
- A TREC inspection is a limited visual survey; cause is not required 2
- Texas engineering board view
- Analyzing cause or recommending repair is engineering 3
- Outcome
- A written report, with items that need further evaluation 1
Key takeaways
- A foundation inspection is usually a visual survey. It reports what can be seen and says what needs a closer look 1.
- The ASHI home inspection standard asks inspectors to inspect and describe the foundation, but not to provide engineering analysis or judge structural adequacy 1.
- A report is a snapshot. It is not a guarantee, and it is not a repair plan.
- Independent means the inspector has no stake in selling the repair, and under the ASHI ethics code does not take referral fees or repair the same items for compensation for a year 1.
- Texas shows how the roles split: a visual inspection is not engineering, and a cause or repair opinion is 23. Other states differ.
- Hire a licensed structural engineer when movement is significant, widening or changing, or when you doubt safety.
What a foundation inspection is
Think of a foundation inspection as a careful look, not a test.
The inspector walks the outside and inside of the house, looks at the foundation where it can be seen, notes cracks and gaps, checks the slope and drainage at the walls, and writes down what is found.
The goal is to describe condition and flag what needs more study.
The American Society of Home Inspectors standard says the inspector shall inspect structural components, including the foundation and framing, and shall describe the foundation, floor, wall, ceiling and roof structures 1. The same standard says an inspection looks at readily accessible, visually observable systems and components.
Our foundation inspection service page explains how professionals in our directory are described. This page defines the term. For cracks specifically, see foundation cracks.
General information, not a diagnosis of your house
General information, not a diagnosis of your house. What an inspection covers depends on the inspector’s license, the contract, state rules and access to the building.
How an inspection works
An inspection starts with questions: how old is the house, what repairs were done, and what made you call.
It then moves through the exterior, interior and any basement or crawl space the inspector can safely enter.
ASHI’s standard lists exterior items such as vegetation, grading, surface drainage and retaining walls that are likely to adversely affect the building 1.
FEMA’s retrofitting manual describes a similar order for older buildings. An initial analysis is usually based on visual inspection, and a detailed analysis, often more informative and requiring engineering calculations, follows if needed.
During the visual stage a designer looks at walls for material, stability, cracks and signs of distress 4. That two-stage idea is the same one that separates an inspection from an engineering assessment.
The result is a written report. ASHI says the report should state which items are not functioning properly or are significantly deficient, give recommendations to correct or monitor them or note items needing further evaluation, and say what was not inspected and why 1. For the engineering side, read the structural assessment entry.
Cross-section of a footing, stem wall, sill plate and floor framing sitting on soil, with the load from the wall passing down through the footing into the soil.
Illustrative, not to scale, not a design. The wall and sill may be visible. The footing and the soil under it are not, so an inspection reads their effects in the walls and floors above.
Kinds of foundation checks
| Kind | What it is | What it does not do |
|---|---|---|
| General home inspection | A visual look at the whole house, including the foundation | Does not provide engineering analysis or opine on structural adequacy 1 |
| Foundation-focused visual inspection | A visual look aimed at the foundation and nearby drainage and grade | Does not usually determine cause or repair; Texas rules do not require it 2 |
| Engineer’s evaluation | Investigation by a licensed engineer, which may include measurements and soil data | Scope is set by the engineer; see the structural assessment entry |
| Level or elevation survey | Readings of floor heights to see slope or change | Shows position, not cause |
| Soil investigation | Testing the ground at the site | Not part of a typical home inspection; ASHI does not require geological or soil inspection 1 |
Example: where things appear in an inspection report
The report example below uses the ASHI standard to show what a report’s structural and exterior sections can contain 1. It describes a typical structure. It is not a report on any house, and a given report may differ.
| Item | What the standard asks | Where it shows up |
|---|---|---|
| Foundation | Inspect and describe | Structural components section |
| Under-floor crawlspace | Describe the method used to inspect it | Structural components section |
| Vegetation, grading, surface drainage, retaining walls | Inspect those likely to adversely affect the building | Exterior section |
| Items not inspected | State what was present but not inspected, and why | Limitations part of the report |
| Items needing further evaluation | Name them; no required method or cost of correction | Recommendations part of the report |
Notice what is absent: no cause, no repair method and no cost. ASHI says the inspector is not required to determine methods, materials or costs of corrections, nor to enter crawlspaces with less than 24 inches of clearance or an access opening smaller than 16 by 24 inches 1.
When people order a foundation inspection
The common moments are a home purchase, a new crack or sticking door, a listing, an insurance or warranty matter, and a quote that seems too big.
The Colorado Geological Survey advises a buyer of an existing house in swelling soil to look for cracks in basement and garage floors, driveways and sidewalks, and walls near door and window corners, and to hire a professional engineer or home inspection consultant before signing if damage is suspected 5.
New homes are different. The same guide says a foundation should be designed and inspected by a registered professional engineer who specializes in soil and foundation engineering, in areas with swelling soils 5. That is a design-phase role, separate from a buyer’s inspection.
- ExteriorGrade, drainage, vegetation, walls 1
- InteriorCracks, gaps, doors, floors 4
- RecordsPlans, permits, repairs, soil report 5
- Follow-upFurther evaluation if needed 1
What an inspection gives you
What it gives you
What it cannot give you
- Cannot see the footing or the soil beneath it.
- Cannot decide cause, or say that a repair is or is not needed, unless the inspector is also qualified to do so 3.
- Cannot promise the foundation will not move.
- Cannot replace a soil investigation; see geotechnical soil investigation.
Limits of an inspection
Inspections are limited by access, time and training. ASHI’s standard says the inspector inspects readily accessible, visually observable components, is not required to dismantle anything, and need not inspect geological and soil conditions 1.
The Texas rule calls a real estate inspection a limited visual survey and basic performance evaluation, and says the inspector need not determine the cause or source of a condition 2.
An inspector may also work only within his or her training. The ASHI ethics code says inspectors should express opinions only within their areas of education, training or experience 1. A person may be an excellent home inspector and still not be the right person to judge a bowing wall.
And one visit shows one day. A crack that looks the same today may be moving, and a crack that looks worse may be old. That is why movement records matter, and why movement monitoring matters.
Inspection vs. engineering assessment
An inspection describes what is visible and flags concerns. An engineering assessment investigates cause and may recommend a repair. In Texas, analyzing cause or recommending repair counts as engineering 3. Other states differ.
What drives the cost of an inspection
We do not print prices. The drivers are the size and age of the house, the foundation type, access to a crawl space, the travel distance, the scope in the contract, whether measurements or reports are included, and who does the work.
An engineer’s evaluation usually costs more than a visual inspection because it covers more.
Ask what the fee covers and what it does not. Read our cost guide for how quotes are built.
How an inspection is done and what you can prepare
A general outline. Preparing helps the inspector, and none of it involves digging.
- Gather records: Plans, permits, past repairs, soil reports and photos of cracks with dates.
- Clear access: Move stored items from crawl space hatches, panels and wall bases.
- Walk the exterior: The inspector looks at grading, drainage, vegetation, walls and the foundation where it shows 1.
- Walk the interior: Doors, windows, floors, wall and ceiling cracks, and basement or crawl space where safe 4.
- Receive the written report: It lists deficiencies, items not inspected and items needing further evaluation 1.
- Plan the follow-up: Use the inspection checklist to track questions and decide whether to call an engineer.
Keeping the record useful
A foundation inspection is more useful when it joins a longer record.
- File the report with plans, permits and repair records.
- Photograph and date any crack or gap you were told to monitor.
- Repeat photographs each season and after unusual weather.
- Keep drainage items in order: gutters clear, downspouts extended, grade sloping away 1.
- Re-inspect when something changes, such as a new crack, a leak, a tree removal or a big storm.
- Pass the report to the next owner or agent with the repair history.
Risks and when to call a structural engineer
The main risk is false comfort. A clean report from a visual inspection does not mean the foundation is sound. The ASHI standard excuses inspectors from giving an opinion on structural adequacy 1. The opposite risk is false alarm: a company that sells repairs may find work for itself. That is why independence matters.
Safety comes first on the visit. Do not enter a crawl space or pit with standing water, gas or electrical hazards, and do not dig to expose a footing. ASHI says inspectors need not enter crawlspaces that are too tight 1, so access may be limited.
Call a licensed structural engineer if cracks are widening or changing, if a wall bows or is displaced, if doors and windows stick along with new cracks, if corners separate, or if you doubt safety. Our engineer guide explains who to call.
Do not dig or crawl into hazards
Never dig beside a foundation to expose it, and never enter a crawl space or pit with standing water, gas or electrical hazards. Leave exposure of footings to an engineer-led process with shoring.
Standards and rules that apply
Home inspection standards come from trade groups and, in some states, from law. The ASHI Standard of Practice we cite took effect March 1, 2014, and later versions may differ 1.
Texas sets its own rule: 22 TAC section 535.227, amended effective February 1, 2022, defines a real estate inspection as a limited visual survey and basic performance evaluation and excuses the inspector from determining cause or providing engineering 2.
Who may give engineering opinions is set by each state’s engineering board. The Texas Board of Professional Engineers issued Engineering Advisory Opinion Request 43 in February 2018.
It says analyzing the cause of a condition, recommending repair or giving any expert engineering opinion on a foundation is the practice of engineering under the Texas Engineering Practice Act, and that a licensed inspector doing a visual inspection under the TREC standards is not practicing engineering 3. Check your own state’s rules.
Edition and adoption
These are examples from ASHI and Texas, with dates given. Other states license inspectors and engineers differently. A credential is not a licence, so verify with your state board. We do not endorse any inspector or company.
Inspection compared with nearby services
| Service | What it is | Key difference |
|---|---|---|
| Foundation inspection | Visual survey and report of condition | Describes; does not usually decide cause or repair 12 |
| Structural engineering assessment | Investigation by a licensed engineer | May decide cause and recommend repair; see the held entry on structural assessment |
| Repair company estimate | A bid to do the work | Has a financial interest in the scope; see the independent section below |
| Soil investigation | Testing of soil at the site | Measures the ground, not the building 6 |
| Home inspection | Whole-house survey | Broader and shallower on the foundation 1 |
Foundation inspection myths
- Myth An inspector can tell me what is causing my cracks.
- Reality A visual inspection reports clues. Cause is not required of a Texas inspector 2, and analyzing cause is engineering there 3.
- Myth A passing inspection means the foundation is fine.
- Reality Standards excuse inspectors from an opinion on structural adequacy 1.
- Myth A free inspection from a repair company is the same as an independent one.
- Reality Independence turns on who profits from the repair. See the section below.
- Myth Inspectors can see the footing.
- Reality The footing is buried, so inspectors read effects above it.
- Myth One visit is enough.
- Reality A single visit is a snapshot. Movement records over time say more.
Regional factors for inspections
State rules change who may inspect and who may give engineering opinions. Texas, for example, splits visual inspection (TREC) from engineering opinion (the engineering board) 23.
Soil changes what to look for: in swelling-soil regions such as Colorado, the guide lists cracked basement and garage floors, driveways and walls near door and window corners as signs to check 5.
Texas guidance points to NRCS soil surveys and soil tests for expansive soils 6. Ask your state board what applies.
What to do with this
Decide what you need to know. If you want a condition snapshot, a visual inspection fits. If you need cause or a repair design, you need an engineer. If you are buying, use the buyer checklist. If you cannot tell, the engineer or contractor triage helps.
- If Buying a house and want a baseline
- Then Order a home inspection; ask for the foundation to be described
- If A new crack or sticking door
- Then Photograph and date; consider a foundation-focused inspection
- If A company says you need repairs
- Then Get an independent opinion from someone who does not sell the repair
- If New or widening cracks, bowing, sticking doors
- Then Call a licensed structural engineer; do not dig
Independent foundation inspection: who qualifies as independent
An independent foundation inspection is one done by someone who does not profit from the repair that might follow. The idea is simple. If the person finding the problem is also selling the fix, the finding and the sale are tangled together. An independent inspector has no such tie.
ASHI’s code of ethics gives a workable test. Inspectors shall not compensate real estate agents for referrals, shall not accept compensation for recommending contractors, services or products, and shall not repair, replace or upgrade for compensation the systems and components they inspected for one year after the inspection 1.
It also asks inspectors to be objective and not knowingly understate or overstate the significance of conditions 1.
Engineer inspection and company inspection are not the same thing. A licensed engineer’s evaluation is professional engineering work, and in Texas, analyzing cause or recommending repair belongs to licensed engineers 3.
A repair company’s inspection is usually part of a sales process, and the company may not hold an engineering licence. Never assume a credential is a licence, and verify with your state board. We do not rank or endorse companies.
To check independence, ask: Do you or your company bid on repairs at this house? Do you accept referral fees?
Are you licensed as an engineer or inspector in this state, and what is the license number I can verify?
Use our inspection checklist to record the answers, and decide who to hire first before you book.
Questions about Foundation Inspection
What is a foundation inspection?
It is a visual examination of a foundation and the clues around it, made to describe condition and flag concerns. ASHI’s standard asks the inspector to inspect and describe the foundation, but not to provide engineering analysis 1. The result is a written report, not a repair plan.
What does a foundation inspector look for?
Cracks, gaps, slopes, damp spots, and signs of movement, plus the grade, drainage and vegetation near the walls. ASHI lists vegetation, grading, surface drainage and retaining walls that may adversely affect the building 1. The inspector reports clues. Cause and repair are separate questions.
Can a home inspector say my foundation is safe?
Not in the sense of a structural opinion. ASHI says the inspector is not required to offer an opinion about the adequacy of structural systems and components or to provide engineering services 1. A licensed structural engineer can assess adequacy.
What is an independent foundation inspection?
It is an inspection by someone who does not sell the repair. ASHI’s ethics code bars referral payments and, for one year after an inspection, repairing the same systems for compensation 1. The aim is that the finding is not shaped by a sales interest. Verify credentials and licenses yourself.
Should I hire an engineer or a foundation company to inspect?
If you need cause or a repair design, hire a licensed structural engineer. In Texas, analyzing cause or recommending repair is engineering 3. A company inspection is often tied to a bid. Ask about independence and licensing, and see our contractor guide.
How long does a foundation inspection take?
There is no standard time in the sources we loaded. It depends on the size of the house, the foundation type, access and the scope in the contract. Ask the inspector how long the visit takes, what will be inspected, and when you will get the report.
Do I need a foundation inspection when buying a house?
It is a common step if you see warning signs or the house sits on swelling soil. Colorado’s guide advises hiring a professional engineer or home inspection consultant before signing if you suspect significant damage 5. Use our buyer checklist to decide.
Will an inspection find the cause of my cracks?
Often not. A visual inspection reports patterns and conditions. In Texas, the inspector is not required to determine the cause or source of a condition 2. A structural engineer may investigate cause with measurements, soil data and records over time.
What should I do after an inspection report?
Read the items marked for further evaluation, then ask who is qualified to evaluate each one. ASHI defines further evaluation as examination and analysis by a qualified professional, tradesman or service technician beyond that provided by a home inspection 1. Get independent opinions before large repairs.
Can I inspect my own foundation?
You can look, photograph and log. Check grade and downspouts, note cracks with dates, and use our checklist. Do not dig beside the foundation, and do not enter a crawl space or pit with standing water, gas or electrical hazards. A homeowner check is a clue-gathering step, not a diagnosis.
Sources
- American Society of Home Inspectors, Standard of Practice for Home Inspections and Code of Ethics (effective March 1, 2014), retrieved .
- Texas Administrative Code, Title 22, section 535.227, Standards of Practice: General Provisions (Texas Real Estate Commission; amended eff. Feb. 1, 2022), Cornell LII copy, retrieved .
- Texas Board of Professional Engineers, Engineering Advisory Opinion Request 43 (Feb. 2018), TREC-licensed inspector providing an opinion on a residential foundation, retrieved .
- FEMA P-259, Engineering Principles and Practices for Retrofitting Flood-Prone Residential Structures, 3rd ed. (Jan. 2012), retrieved .
- Colorado Geological Survey, Special Publication 11, Home Construction on Shrinking and Swelling Soils (Holtz and Hart, 1978), retrieved .
- Texas Department of Licensing and Regulation, IHB Technical Bulletin TB 10-01, Foundations on Expansive Soils – Residential (rev. Oct. 16, 2018), retrieved .
Expert review
Written by the HyreFoundation Research team. Not yet reviewed by an outside expert. We say so rather than imply a review that has not happened; see our editorial policy.
How the numbers were checked: Facts were checked against the ASHI Standard of Practice (2014), Texas 22 TAC 535.227, Texas Board of Professional Engineers EAOR 43, FEMA P-259, Colorado Geological Survey and Texas TDLR documents listed above, retrieved 2026-10-14.
Texas is used as one state example; other states differ. No structural engineer has reviewed this page.
Suggest a correction. We fix errors and say what changed.