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  • Les Hanna

Understanding the Unique Needs in a Manufactured Home Inspection vs. Site-Built Home Inspection

Updated: Aug 23



When purchasing a home, one of the most crucial steps is the inspection process. However, the inspection needs of a manufactured home differ significantly from those of a site-built home. Understanding these differences can ensure that you’re adequately prepared, especially if you’re seeking government-backed financing. This article delves into the unique aspects of inspecting manufactured homes, with a particular focus on Wood-Destroying Organism (WDO) inspections, well water testing, and engineer certifications.


1. The Differences Between Manufactured Homes and Site-Built Homes


Manufactured Homes:

Manufactured homes are built in factories and then transported to the site where they will be occupied. They are typically constructed on a steel chassis and can be moved after installation, though this is less common once they are permanently placed. Because of their unique construction and transportation, they have specific inspection requirements.


Site-Built Homes:

Site-built homes are constructed entirely on the location where they will be occupied. These homes are usually built on a permanent foundation and are subject to local building codes and standards. The inspection for site-built homes focuses primarily on the condition and quality of materials used in construction and adherence to local codes.



2. Unique Inspection Requirements for Manufactured Homes

Foundation Inspection:

One of the primary differences in inspecting a manufactured home is the need to inspect the foundation system. Manufactured homes often have pier and beam foundations, and the stability and integrity of these systems are critical. Inspectors will check for issues like improper anchoring, settling, or damage to the piers and beams, which can lead to structural problems.


HUD Compliance:

Manufactured homes must comply with HUD (Department of Housing and Urban Development) standards, which regulate aspects like construction, design, and durability. Inspections will often include a review of whether the home meets these standards, which is not typically a concern for site-built homes that follow local building codes.


Electrical and Plumbing Systems:

The electrical and plumbing systems in manufactured homes can be different from those in site-built homes due to the way they are constructed and installed. Inspectors need to ensure that these systems are safely and correctly installed, with particular attention to the connections made during the installation of the home on-site.


3. Government-Backed Loan Requirements


For those seeking government-backed loans such as FHA, VA, or USDA loans, there are additional inspection requirements for manufactured homes. These requirements often include WDO inspections, well water testing, and engineer certifications.


Wood-Destroying Organism (WDO) Inspections:

WDO inspections are often required for government-backed loans to ensure the home is free from termites, carpenter ants, and other pests that can damage wood structures. For manufactured homes, this inspection is critical as the wooden components, particularly in the foundation and undercarriage, are susceptible to these pests. The inspector will look for signs of infestation or damage and recommend treatment or repairs if necessary.


Well Water Testing:

If a manufactured home relies on a well for its water supply, testing is mandatory to ensure the water is safe for consumption. This includes testing for contaminants like bacteria, nitrates, and lead. Government-backed loans typically require that the water meets specific safety standards before the loan can be approved. The well system itself must also be inspected to ensure it’s functioning correctly and that the water source is sustainable.


Engineer Certification:

One of the unique requirements for a manufactured home when applying for a government-backed loan is the engineer certification. This certification verifies that the home’s foundation meets the HUD Permanent Foundations Guide for Manufactured Homes. A licensed engineer must inspect the foundation to ensure it meets all necessary criteria for structural integrity and long-term stability. Without this certification, a homebuyer may not be able to secure financing.  If the manufactured home has an addition (decks, porches, rooms) the lender may also require an additional engineer certification to insure the home's structure isn’t compromised by these features which aren’t part of the original construction. 



4. Why Choose Hanna Home Services?


- Expertise in Manufactured Homes: Our inspector is specialized in the unique requirements of manufactured homes and are well-versed in HUD standards.

- Convenient and Comprehensive: In addition to engineer certifications, we can provide all the necessary inspections (Home Inspection, WDO Inspection, 4 Point Inspection, FHA/VA Well Water Test) in one visit, saving you time and ensuring that your home meets all lender requirements.

- Cost-Effective Solutions: By offering bundled services, we help you save money while ensuring that all aspects of your home are thoroughly evaluated and certified.

- Stand-Alone Services Available: If you only need a foundation or additions certificate, we can provide that as a stand-alone service, giving you flexibility and convenience.

- Fast Certificate Delivery: Engineering certificates are usually delivered within 24 hours of the scheduled appointment.


Manufactured homes offer a unique and affordable housing option, but they come with their own set of inspection requirements that differ from those of site-built homes. Whether it’s ensuring HUD compliance, conducting thorough foundation inspections, or meeting the specific needs of government-backed loans, understanding these differences is crucial. By working with an inspector who specializes in manufactured homes, you can ensure that your investment is sound and that your home meets all necessary standards and requirements.


Call Hanna Home Services at 904-658-1009 For Your Manufactured Home Service Needs.


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