Quick answer
FHA and VA loans, and many conventional lenders, require a licensed engineer to certify that a manufactured home sits on a permanent foundation that meets HUD’s Permanent Foundations Guide for Manufactured Housing. The engineer reviews the piers, footings, anchors, frame connections and perimeter, then issues a signed and sealed letter. If something does not comply, the engineer specifies the repair.
Buying, selling or refinancing a manufactured home often stalls on one document: the foundation certification. It usually comes up late, after an offer is accepted and a closing date is set. Knowing what the engineer looks for helps you avoid a last-minute delay.
Who asks for it and why
Lenders want proof the home is permanently attached to the land, so it can be financed as real property rather than as a vehicle. Government-backed programs such as FHA and VA refer to HUD’s Permanent Foundations Guide for Manufactured Housing as the standard. The certification must come from an engineer licensed in the state where the home is located.
What the engineer checks
- Footings and piers: size, spacing, material and whether footings sit below the frost line on firm soil
- Anchorage: straps or anchors that resist wind uplift and sliding, and their condition
- Frame connections: how the steel chassis is tied to the piers and anchors
- Perimeter enclosure: skirting or foundation walls, ventilation openings and access
- Moisture control: ground vapor barrier and drainage away from the home
- Additions: porches, decks or rooms attached to the home that could load it unevenly
The most common reasons a foundation fails certification
- Dry-stacked blocks on bare ground, with no footing below
- Missing, rusted or loose anchor straps
- Piers not under the frame’s support points, or too far apart
- No vapor barrier, or standing water under the home
- Vinyl skirting presented as a foundation wall
None of these ends a sale. The engineer specifies the repair, a contractor completes it, and the engineer then issues the certification.
How the process works
- Send the address, the lender’s requirements and any existing foundation paperwork.
- The engineer reviews the site, either through an on-site inspection or detailed photos and measurements, depending on the lender and state.
- If the foundation complies, you receive a sealed certification letter.
- If it does not, you receive a repair specification, and the letter follows once the work is verified.
What to send us
- Property address and the lender or loan type
- Year, make and size of the home if known
- Photos of every side of the home, the skirting and access points
- Photos under the home showing piers, footings, anchors and the frame
- Your closing date
Request a fixed-fee quote, and mention your closing date so we can confirm timing in writing.
Common questions
Does every manufactured home need a foundation certification?
Not every one, but FHA and VA loans require it, and many conventional lenders and insurers ask for it too. If your lender has asked, you need it to close.
Is the certification the same as a home inspection?
No. A home inspection is a general condition report. The foundation certification is a sealed engineering statement that the foundation meets a specific standard.
Can a foundation certification be reused when I sell again?
Lenders often accept an existing certification if nothing has changed, but some ask for a new one. Keep the original letter with your home documents.
What if the home fails?
You get a repair specification instead of the certification. Once a contractor completes the repair and it is verified, the certification is issued.