Home Inspection

Structural Inspection vs Home Inspection

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home inspection

Nobody wants to spend a massive sum of their hard-earned cash on a property that will cost a fortune to repair. To avoid this, most people opt to conduct a home inspection of the property to determine that no glaring deficiencies are present before closing.

If you’re about to purchase a home, you may be wondering what the difference is between a home inspection and a structural inspection.

A home inspection by a home inspector inspects the structure, electrical, plumbing, HVAC, and overall property safety. A structural inspection by a structural engineer provides an in-depth analysis of the foundation and structural integrity of the house only.

What I’m about to say may sound like a riddle, but it’s not. Here you go.

Some home inspectors are structural engineers, however not all structural engineers are home inspectors.

Allow me to explain. For most home inspectors, home inspections are their primary business activity. It’s all they do. Some home inspectors have backgrounds in structural engineering services.

However, most structural engineers do not perform home inspections as their primary source of income. Structural engineers perform structural analysis of existing and new build homes and commercial properties. Structural engineers rarely visit a home site unless a glaring deficiency is present that needs an expert analysis to correct.

Think of your general home inspector as your family physician and the professional engineer as the internal specialist. Your general inspector can document a problem that exists and advise you whether you should seek out a structural engineer. The structural engineer is the internal specialist who determines the best course of action to correct the problem.

Structural Inspection vs Home Inspection 

Home InspectionStructural Inspection
Cost Estimate$300 – $500$450 to $900 Average or $150 – $200 per hour
Carried out byCertified Home InspectorResidential Structural Engineer
What the inspection assessesThe overall condition and safety of the systems, including electrical, plumbing, heating, and HVAC. This also includes a visual inspection of the visible structural components of the house.The structural integrity and safety of the property’s foundation, walls, floors, and roof.
Governing bodies/associationState Licensing, ASHI, or NACHIState’s engineering licensing board
Time to receive an inspection report24 – 48 hoursUp to 10 days
Source: Thumbtack.com

No home is perfect, yet it’s important to distinguish just how far away from perfect each house is, especially regarding its essential systems and structural integrity. The purpose of home inspections is to assure that you’re not walking into any unwanted surprises with your new property and so that you can ensure your safety while you’re living there.

For a more detailed look into home inspection safety issues, check out our article Common Safety Issues Found During Home Inspections.

Some homebuyers practice extra due diligence by hiring a home inspector and a structural engineer; however, it’s worth considering since home inspections cost about $400 or more per inspection.

You shouldn’t need to hire both a home inspector and a structural engineer unless your home inspector finds a structural or foundation defect that needs correction.

Although, the good news is that it may not be necessary to conduct both types of inspection (depending upon the age of the house and its condition).

You may need to hire both a home inspector and a structural engineer if:

  • Your home inspector finds significant structural issues
  • You intend to renovate the home which will require structural changes

This article will break down the specifics of each type of inspection and how the results can affect a home sale. Let’s jump into it.

Home Inspection: The Basics

home inspection

Let’s start by looking at the most common two types of examinations, the general home inspection. In the home sale process, the home buyer will usually elicit the services of a professional home inspector so they can assess the property by performing a visual observation. 

The home inspector is looking for things that may cause the house to be unsafe, function improperly, or have major mechanical issues. For the most part, they aren’t looking for cosmetic issues in the home.

Most home inspectors are licensed in the state they work in and certified under at least one home inspector association. However, some states still do not have licensing requirements for home inspectors.

Certified home inspectors have pledged to follow a rigid ethical code to ensure that each property is assessed as objectively as possible and that their client’s rights are protected. 

In the USA, there are two leading associations that most home inspectors look for certification. These are NACHI and ASHI. Each home inspector must pay an annual fee and pass stringent examinations to join these organizations. Home inspectors that are certified give themselves credibility and trustworthiness with their clients. 

To qualify for full membership with these associations, the inspector must pass a series of tests to validate their competencies, including examinations on ethics and standards.

Let’s take a look at the two leading associations:

ASHI (American Society of Home Inspectors)

ASHI was established in 1976 by a group of home inspectors who wanted to set out standards of practice to help build consumer awareness and increase the professionalism of their field.

Before ASHI existed, there was no such organization as the home inspection industry was in its infancy, which meant that the inspections carried out were largely subjective and without standards.

All ASHI members are required to abide by the ASHI Code of Ethics, which forbids home inspectors from taking an active part in the brokerage or sale of real estate and the performance of repairs or maintenance on the homes that they inspect. Members also agree to report on each property following the ASHI Standards of Practice. 

The highest level of certification that a home inspector can achieve with ASHI is an ASHI Certified Inspector. They must take the national home inspector exam to complete this qualification, a 200 question/4-hour exam.

This exam is also used for home inspector licensing in over half of the United States. They must also submit a list of at least 250 paid home inspections that meet or exceed the ASHI Standards of Practice that they have carried out.

InterNACHI (International Association of Certified Home Inspectors)

NACHI was founded in 1990 and is the largest home inspector association in the world. They have over 16000 members in the USA and a total of 24600 registered members worldwide. 

They have a highly diverse range of training and certification programs, with over 40 types of certifications that home inspectors can obtain with more than 700 hours of education available.

Their main ambition is to provide its membership with continuous education, online training, marketing services, and the knowledge, skills, and abilities they need to maintain competency and inspection excellence.

InterNACHI’s highest level of certification is the Certified Professional Inspector. Home inspectors must pass the InterNACHI online exam, which is free and open to the public to achieve this rank. They must also pass a Code of Ethics and the Residential SOP online course while having at least one fee-paid home inspection or four mock inspection reports.

InterNACHI’s training for home inspectors is second to none, with hundreds of hours of online video training from the top teachers in the industry.

What Do Home Inspectors Look For?

The standards of practice for each home inspector association are similar as they both search for the same things when performing a general home inspection. Here are the primary things that home inspectors observe:

Evidence of water damage

Water damage is one of the most severe issues that can face a home. Whether water is penetrating through the roof or near the home’s foundations, it will likely cause a whole host of issues to the property. This includes structural concerns like uneven floors, storm damage, rot damage, electrical damage as well as potential problems with mold and rot.

Damage to the roof

The roof is one of the most critical aspects of the home. It protects the property from the elements, helps keep the heat insulated in the winter, and keeps out pests. Home inspectors will look out for a sagging roof, leeks, issues with the drainage system, and any evidence that the roof replacement is needed. Here is a list of common roofing issues found in home inspections.

Problems with the electrical systems

Electrical issues are one of the leading causes of house fires in the USA. Home inspectors will pay particularly close attention to any instances of faulty or hazardous electrics in the house. This could be in the form of exposed wiring, DIY wiring, flickering, buzzing, or dimming of lights and electrical appliances that aren’t running correctly.

Problems with the plumbing systems

Home inspectors will look out for any evidence of faulty plumbing in the home. These types of issues are especially prevalent in older homes that have sub-par plumbing systems. Typical issues to look out for are poor drainage, mold, rust, low water pressure throughout the house, and sediment build-up.

Problems with exterior aspects of the property

The home inspector will spend some time assessing the exterior of the property. This includes noting the vegetation such as trees and plants that are near to the house. If large trees are within 10 m of the property, this could be marked as a defect. The reason being is that trees with large roots can affect the foundation and structure of the property.

Another thing that home inspectors look out for is the gradients and overall landscape surrounding the home. If the grading is negative, this could suggest that the house will have problems with water penetration due to excess water flooding down towards the property.

Insulation and ventilation issues

Part of the inspection will include assessing the insulation and ventilation of the property. This usually entails observing the home’s HVAC systems to ensure that air is flowing through the property as it should. Inadequate ventilation can lead to problems such as mold and water damage.

Heating system failures

If you reside in a state where it gets cold in the winter, then the chances are that you’re going to want to have a heating system that functions properly. The home inspector will ensure that these systems are working and reporting systems that do not operate or are deemed inaccessible.

Insect and pest infestations

Strictly speaking, it is not the home inspectors’ job to check for pests. However, they are required to look out for any damage that is likely to have been caused by them. If left unchecked, termites and other wood-destroying organisms can cause massive amounts of property damage.

Basic structural integrity assessments

The home inspector will inspect the foundation, basement, crawl space, and other property’s structural components. During the assessment, they will describe the type of foundation the home has and the location of the access to the underfloor space.

The only issues they will report on include observed indications of active water penetration, signs of possible foundation movements, and observations of wood in contact with soil.

However, the home inspector is not required to “report on the adequacy of any structural system or component.” They also can’t offer an opinion about the adequacy of structural systems and components in the house; instead, they must inspect and describe its structural components and nothing more. 

Suppose they believe that the home is in an adverse structural state. In that case, they will recommend a residential structural engineer to carry out a full inspection to assess and determine the home’s structural soundness.

Structural Inspection: The Basics

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A structural engineer perform a structural evaluation, ensuring that you receive a qualified opinion on the property’s overall structural integrity. 

For the vast majority of home buyers, a dedicated structural home inspection may be unnecessary. As properties get older, so too does the likelihood of structural faults and failures, especially with the roof and foundations. The purpose of a structural engineering inspection is to determine if the passing of time has caused any post-construction issues, defects, or distortion to the building structure. If you are buying a new home, you may be able to skip this type of inspection.

What Do Structural Engineers Inspect?


Problems with the foundation can cause structural failures and one should identify them promptly. Engineers typically perform foundation inspections to identify cracks in the foundation, wood rot or defects that compromise the foundation integrity.


While the roof is observed in general home inspections, a licensed engineer will focus more on its structural elements and determine any defects. Sometimes it can be hard to decide on the overall health of a roof, which is why it’s essential to consult the opinion of a certified structural engineer.

Severe cracking

Cracks can indicate that there is a severe structural failure within the property. However, this all depends on the type of crack and its severity. Some cracks are purely cosmetic. That’s why it’s crucial to hire a specialist to determine whether these cracks are benign or are indicative of something more serious.

Sloped floors

Sloping floors are usually caused by the bending of the wooden joists that hold up the floor structure. While a small amount of bending is natural in aging homes, excess bending could be a more significant problem. 

Bowing, leaning, or bulging walls

Similar to sloped floors, uneven walls are usually indicative of structural problems in the house. If these issues are left unchecked for a prolonged time, they can cause substantial damage to the home, resulting in a wall collapsing.

As a home buyer, it’s worthwhile paying the extra money to hire a structural engineer to assess the property. Not only will this ensure that it’s safe for its inhabitants, but it could also save you a ton of money in repairs.

Structural damage requires some of the most expensive and time-consuming repairs that you can carry out on a property. For example, a roof replacement usually costs anywhere from $10,000 to even $30,000+. You could potentially avoid such repairs for the sake of a $600 bill for a structural engineering report.

Buyers Inspection and Sellers Inspection

During a property sale, there is usually a buyer’s inspection and a seller’s inspection. As mentioned, the buyer’s inspection occurs after an accepted offer for the home but before the sale’s closing. Once the home inspection is complete, the buyer can renegotiate the deal terms, depending on the results of said inspection. 

A seller’s inspection, otherwise known as a pre-listing inspection, is carried out by the homeowner before it is listed on the market. Some sellers choose to do this to prepare their property for sale, ensuring a smooth and easy process.

This also gives them the chance to repair any issues arising from a professional inspection, which should save time in the closing stages of the deal. It also helps prevent the homebuyer from renegotiating the agreement due to unexpected faults in the inspection report. 

However, it is worth noting that once the professional inspection has been conducted, you must disclose the pertinent findings on the seller’s property disclosure. This does not mean the seller has to divulge all the home inspection findings.

Frequently Asked Questions

How much for a structural engineer inspection?

Most structural engineer inspection costs will vary based on the scope of work. If you only need a structural engineer to inspect a wall or LVL beam, you can expect to pay about $200 for a site visit. Most engineers charge a $150 to $200 hourly rate with a $200 minimum. For a structural inspection with an inspection report, you can expect to pay about $500 to $1000. More complex renovation projects can have engineer costs of $2000 or more.

Why hire a structural engineer?

Generally, you’ll need to hire a structural engineer when planning major home renovations that require structural changes to the property. For example, if you are removing a load-bearing wall, building a room addition, or repairing damaged structural framing or trusses you’ll need an engineer to provide building plans or an inspection to assess the overall stability of the home.

How to find structural engineers near me?

If you need to hire a structural engineer, the best place to start is by asking for recommendations from business colleagues, friends, or family members. You can also find structural engineers through building contractors and your local Realtor board. Once you have a few names, you can then research and contact each engineer to discuss your project in more detail.

Final Thoughts

While a general home inspection covers most issues that crop up in a house, it will not provide an in-depth report on its structural integrity. The only way to receive a written report is to hire a licensed structural engineer to conduct a full structural assessment.

For the most part, homebuyers should carry out both types of inspections to get complete reassurance that the property they are buying is as expected. However, you can skip the structural inspection if the property isn’t too old and the general inspection didn’t highlight any potential issues.

For a list of home inspection red flags, see our article 10 Red Flags That Can Cause a Home Inspection to Go Wrong .

Also, in the 7 Major Home Inspection Issues Home Inspectors Report, we look a 7 of the most common significant issues found in home inspection reports.

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Hubert Miles

I've been conducting professional home inspections since 2002. I'm a licensed Home Inspector, Certified Professional Inspector (CPI), Certified Master Inspector (CMI), and FHA 203k Consultant. I started HomeInspectionInsider.com to help people better understand the home inspection process and answer questions about homeownership and home maintenance.
DISCLAIMER: The content published on HomeInspectionInsider.com is not professional advice. You should consult with a licensed professional and check local permit requirements before starting any project.
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