Quick answer
Home inspection and foundation problems refers to the part of a general home inspection that reports what an inspector can see of the foundation and structure on one day. It describes visible condition. It is not an engineering evaluation of whether the foundation is adequate.
When the report flags cracks, slopes, moisture or movement, the usual next step is a licensed structural engineer, not a guess.
Quick facts
The key facts about Home Inspection and Foundation Problems, with sources:
- What it is
- A visual look at readily accessible structural parts, including the foundation and framing 1
- What it is not
- Not engineering analysis and not an opinion on whether structural parts are adequate 1
- Pass or fail
- Inspectors describe condition. They do not pass or fail a house 2
- Who hires the inspector
- The buyer, ideally someone accountable only to the buyer 3
- Best timing
- Soon after choosing a home, with a contract that depends on the result 3
- Next step for big concerns
- A licensed engineer, licensed by a state board 4
- Standards differ
- Inspector standards and licensing differ by state and by association 1
Key takeaways
- A home inspector must look at the foundation and framing, but only what is readily accessible and visible 1.
- The ASHI standard says the inspector is not required to provide engineering analysis or offer an opinion on whether structural parts are adequate 1.
- Inspectors do not pass or fail a house. They describe its condition 2.
- A report note about cracks, slopes or moisture is a clue to follow up, not a diagnosis.
- The buyer should hire an inspector who answers only to the buyer and should book early 3.
- For significant, widening or changing movement, a licensed structural engineer is the next call.
What a foundation finding in a home inspection means
A general home inspection covers the whole house in a few hours. The foundation is one line in a long report. The American Society of Home Inspectors says the purpose is to give the client information about the condition of the systems and components at the time of the inspection 1.
That wording matters. A foundation finding is a snapshot. It records what the inspector could reach and see on that day. It does not predict what the soil will do next year, and it does not explain why a crack formed.
General information, not a diagnosis of your house. This page explains how to read an inspector’s foundation notes. It cannot tell you what is wrong with any particular home.
If you want the full picture of the foundation inspection itself, read our foundation inspection guide. This page covers the narrower question: what the general inspection said and what to do with it.
Scope of this page
Inspector standards quoted here come from ASHI’s Standard of Practice as posted in 2026. State rules and other associations’ standards differ. Ask your inspector which standard the inspection follows.
How inspectors look at a foundation
Under the ASHI standard, the inspector must inspect structural components, including the foundation and framing. The inspector must also describe the foundation, floor, wall, ceiling and roof structures, and the methods used to look under floors and in attics 1.
The standard limits the work to “readily accessible, visually observable” parts 1. In practice the inspector walks the exterior, looks at the visible wall, checks the basement or crawl space if it can be entered, and looks inside for signs that match what is seen outside.
The inspector is not required to enter a crawl space with less than 24 inches of vertical clearance, or one whose access opening is smaller than 16 by 24 inches 1. Finished basements, stored items and covered walls can also hide the foundation from view.
Inspections are also “not technically exhaustive” 1. The inspector does not dig, drill, measure floor elevations or test soil. Those tools belong to an engineering study. Our geotechnical soil investigation page explains what soil testing adds.
- Inspector looksVisible and accessible foundation and structure 1
- Report notesCracks, slopes, moisture or access limits are listed
- Buyer asksWhat was seen, where, and what was not reachable
- Specialist if neededA licensed engineer evaluates the cause 4
- Buyer decidesNegotiate, repair, or walk away under the contract 3
Types of foundation notes in an inspection report
| Kind of note | What it usually says | What it does not say |
|---|---|---|
| Visible cracks | Location and rough direction of cracks in a wall, floor or slab | Why the crack formed or whether it is still moving. See foundation cracks |
| Signs inside the house | Sticking doors, sloping floors or wall cracks tied to the structure | The cause. Several causes can look the same |
| Moisture or staining | Dampness, efflorescence or water marks at the wall or floor | Whether a drainage system is needed. Water can come from several places |
| Drainage and grade | Soil sloping toward the house, short downspouts, clogged gutters | How much water reaches the footing |
| Limited access | Areas not entered or not seen, such as a low crawl space or a finished wall | The condition of the hidden part 1 |
| Referral | A suggestion to have a specialist or engineer look further | The repair, or whether any repair is needed |
Example: reading three lines from a report
The report-reading example below is a made-up example of how a buyer might read a report. No real house, number or price is shown.
| What the report says | What it tells you | Sensible follow-up |
|---|---|---|
| “Stair-step crack in brick near the rear corner.” | A crack exists and where. Cause not stated. See stair-step cracks | Photograph it, ask the seller about its history, and ask whether an engineer should see it |
| “Crawl space not entered, low clearance.” | The inspector did not see the area 1 | Ask who can safely inspect it before the contract deadline |
| “Soil slopes toward the foundation on the west side.” | A drainage condition that adds water at the wall | Ask what fix is planned. Compare with our grading around a foundation page |
None of the three lines proves a structural problem. None proves the house is fine. Each one tells the buyer what to ask next.
Where foundation findings show up in a purchase
Foundation notes appear in the structure section of the inspection report, and again in the summary if the inspector thinks the item matters. They can also appear under grading, roof drainage, plumbing and interior sections, because water and movement leave marks in many places.
The report also feeds the contract. The Consumer Financial Protection Bureau explains that if the purchase contract depends on a satisfactory inspection, the buyer can cancel the sale without penalty if unhappy with the results 3. That is why timing matters.
Lenders can add pressure. The CFPB notes that if the inspection or appraisal finds major repairs, the lender can require them before closing as a condition of the loan 3. Our buying a house with foundation problems page walks through the buyer’s choices in more detail.
What a general inspection does well
What it does well
- Covers the whole house, so foundation clues can be linked to roof, drainage and plumbing findings.
- Is quick and early, which leaves time to negotiate 3.
- Describes the foundation type and the methods used to inspect it 1.
- Notes areas that could not be reached, which tells the buyer what is still unknown 2.
Limits of a home inspection
ASHI’s standard lists what the inspector is not required to do. The inspector need not provide engineering or architectural services or analysis.
The inspector also need not offer an opinion about the adequacy of structural systems and components 1. A good inspector may still say a crack worries them. The standard just does not require it.
A home inspection is also not an appraisal and not a code inspection. ASHI says it does not determine market value and does not verify local code compliance 2.
Hidden damage is a real limit. The Colorado Geological Survey warns that some cracked homes have been repaired on the outside and paneled on the inside to hide the damage 5.
A visual inspection can miss what is covered. That older publication was written for expansive soils in Colorado, but the point about hidden repairs applies anywhere.
Standards also vary. Some states publish their own inspector rules. Do not assume your inspector’s report follows the same rule as another state’s. Ask.
Inspector versus engineer
An inspector reports what is visible. A licensed structural engineer evaluates how the structure carries load and why it moved. The two jobs are different. See our guide on whether you need a structural engineer.
What drives the cost of following up
We do not print prices. A general inspection is priced by the inspector and varies by home size, age and region. Follow-up work costs more or less depending on what you ask for.
For an engineering evaluation the drivers are the scope, the size and age of the house, access, whether soil testing or elevation surveys are needed, how many visits are required and whether a written report with a stamp is requested.
For any repair that follows, the drivers are the cause, the method, the number of locations, access, soil and permits.
Use our cost guide to see how quotes are built, and the cost calculator to explore drivers. Never treat a national number as your price.
What to do after the report names a foundation concern
A general order of work for a buyer. It is not legal or engineering advice.
- Read the foundation lines twice. Note what was seen, where, and what was marked as not inspected.
- Walk the house with the inspector. ASHI encourages buyers to attend and ask questions 2.
- Record what you see. Photograph cracks and mark the date. Our inspection checklist helps you log them.
- Ask the seller for history. Ask about past repairs, water, permits and any engineering reports.
- Match the clues. Check whether the crack, slope and moisture notes point to the same area.
- Call a licensed structural engineer for significant concerns. Use the engineer or contractor tool to decide who to call first.
- Keep your contract deadline in mind. Specialist visits take time 3.
Keeping the inspection useful after you buy
Treat the report as a baseline for the home you now own.
- File the full report, photos and any engineer letters together. Our foundation repair documentation page lists what to keep.
- Photograph the cracks the inspector named and date the photos. Recheck them a few times a year.
- Keep gutters clear and downspouts discharging away from the wall. See our drainage and grading guide.
- Do not dig beside the foundation to look at the footing. That can undermine it.
- Note any new sticking doors, new cracks or widening gaps, and call a licensed engineer if they appear together.
Risks of leaning too hard on the report
The first risk is false comfort. A report that does not mention the foundation does not prove the foundation is sound. It may mean the inspector saw nothing, or could not see.
The second risk is false alarm. A referral line is a prompt to look further. It is not proof that a repair is needed.
A crack can be old, stable and harmless in one house and a sign of active movement in another. Movement history, displacement, water, construction details and soil all change what it means.
The third risk is the timing trap. If the contract deadline passes before a specialist can visit, the buyer may lose the right to cancel. Check your contract and ask your agent or attorney about the dates 3.
Call a licensed structural engineer for significant, widening or changing movement, for walls that bow or are displaced, for sticking doors and windows together with new cracks, for separation at corners, or for any doubt about safety.
Do not rely on one visit for a safety question
If a crack, a leaning wall or a sagging floor makes you doubt the safety of a house, get a licensed structural engineer to evaluate it. Do not enter a crawl space with standing water, gas or electrical hazards, and do not dig beside the foundation.
Rules, licensing and standards
Inspector standards come from several places. ASHI publishes a Standard of Practice. The page notes that members voted in January 2026 to approve a new version, and that the current version stays in force until its implementation date 1. States may also license inspectors and publish their own rules.
Whether home inspectors must be licensed depends on your state, so ask for references and check with your state or county licensing authority.
Engineers are different. NCEES says engineers are licensed by state boards, and that candidates generally need an accredited degree, about four years of experience and passing exams 4. Check any engineer’s license with the state board before you rely on a stamp.
Verify with the official authority
This page does not say any inspector or engineer is licensed. Look up the license with your state’s board and ask which standard the inspection follows.
General inspector, foundation specialist and engineer compared
| Role | Main job | Limits to know |
|---|---|---|
| General home inspector | Describes visible condition of the whole house 2 | Not required to give engineering analysis or an adequacy opinion 1 |
| Licensed structural engineer | Evaluates how the structure carries load and why it moved; licensed by a state board 4 | Scope and fee depend on the job. Verify the license |
| Foundation repair company | Installs repairs. See choosing a foundation contractor | Sells repairs, so ask for an independent evaluation as well |
| Appraiser | Estimates value for the lender 2 | Not an inspection of condition |
Myths about inspections and foundations
- Myth A clean inspection means the foundation is fine.
- Reality It means nothing visible was reported on that day. Hidden or inaccessible parts remain unknown 1.
- Myth The inspector will tell me if the house is structurally sound.
- Reality The standard does not require an opinion on the adequacy of structural parts 1.
- Myth A foundation referral means I should walk away.
- Reality It means ask more. The next step is a closer look by a licensed engineer.
- Myth Inspectors pass or fail houses.
- Reality ASHI says they describe condition and do not pass or fail 2.
- Myth All inspectors follow the same rules.
- Reality Standards and licensing differ by state and by association.
Regional factors that change what a report means
Soil and climate change how a foundation moves. Virginia’s geology page says expansive soils may be recognized by the large cracks that form during droughts, and it points readers to the USDA Web Soil Survey for a site’s soil type 6.
In Texas, a state bulletin says expansive soils are a very common cause of foundation problems 7.
The Colorado Geological Survey adds that a buyer who suspects significant damage should have an engineer or inspection consultant evaluate the home before a contract is signed 5.
Ask what your area’s soils and frost depth are before reading a crack note.
Choosing your next step
Match the next step to what the report says. Use the buyer checklist to keep track of questions, and our who-to-call tool if you are unsure which professional comes first.
- If No foundation concern, full access
- Then Keep the report as a baseline and watch for change
- If Minor cracks noted, no other signs
- Then Photograph, date and ask about history
- If Cracks plus sticking doors or sloping floors
- Then Ask a licensed structural engineer to evaluate
- If Area not inspected or hidden by finishes
- Then Ask for access, or an engineer, before the contract deadline
- If Bowing, displaced or separating walls
- Then Call a licensed structural engineer before any decision
Questions about Home Inspection and Foundation Problems
Does a home inspector check the foundation?
Yes. ASHI’s standard says the inspector must inspect structural components, including the foundation and framing, and describe the foundation type 1. The look is visual and limited to readily accessible parts. It is not an engineering evaluation.
Can a home inspector tell me if a foundation crack is serious?
Not reliably. The ASHI standard does not require an opinion on the adequacy of structural parts 1. A good inspector can describe a crack and say it needs a closer look. Judging cause and seriousness takes a licensed structural engineer, who may also review movement history.
What is the difference between a home inspection and a structural engineer’s evaluation?
A home inspection describes visible condition across the whole house. An engineer evaluates how the structure carries loads and why it moved. NCEES says engineers are licensed by state boards 4. Engineers may also use elevation surveys or soil tests. See our guide to when you need one.
Should I get an engineer if the inspector mentions a foundation crack?
Often yes, when movement is significant, widening or changing, when walls bow, or when doors stick along with new cracks. A small, old, stable crack may only need monitoring. Do not decide from a photo. Ask a licensed structural engineer when you have any doubt about safety.
When should I schedule a home inspection?
The CFPB advises booking it as soon as possible after choosing a home, so there is time to resolve problems and finish any extra inspections 3. Make the purchase contract depend on a satisfactory inspection so you can cancel without penalty if the results are unacceptable.
Who should hire the home inspector?
The buyer. The CFPB recommends an independent inspector accountable to you, and warns that an inspector paid by someone else, or paid only at closing, might underemphasize problems 3. Ask for references.
Does a home inspection cover the crawl space?
It covers it if the inspector can safely get in. ASHI’s standard does not require entering a crawl space with less than 24 inches of vertical clearance or an opening smaller than 16 by 24 inches 1. If it was not entered, the report should say so. Ask who can inspect it.
Does a home inspection find hidden foundation repairs?
Not always. Standards limit the work to visible and accessible parts 1. The Colorado Geological Survey warns that some damaged homes have been repaired outside and paneled inside to hide the damage 5. Ask the seller for repair records and permits.
Is a home inspection the same as an appraisal?
No. ASHI says a home inspection is not an appraisal, does not determine market value and does not verify local code compliance 2. An appraisal estimates value for the lender. Neither one replaces an engineer’s look at suspected structural movement.
Sources
- American Society of Home Inspectors, Standard of Practice (structural components, scope and limits; page notes 2026 membership vote), retrieved .
- American Society of Home Inspectors, What Is a Home Inspection?, retrieved .
- Consumer Financial Protection Bureau, Schedule a Home Inspection, retrieved .
- NCEES, Licensure (engineering licensing boards, education, experience and exams), retrieved .
- Colorado Geological Survey, Special Publication 11, Home Construction on Shrinking and Swelling Soils (Holtz and Hart, 1978), retrieved .
- Virginia Department of Energy, Geology and Mineral Resources, Expansive Soils, 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, CFPB, NCEES, Colorado Geological Survey, Virginia and Texas documents listed above, retrieved 2026-10-14. Inspector standards and licensing differ by state. No structural engineer has reviewed this page.
Suggest a correction. We fix errors and say what changed.