Tie-downs loose, rusted, or missing: how to check and what it costs

Anchoring is the part of a manufactured home nobody looks at, sitting in damp sand under a home whose skirting hides it. It is also the part that matters most in a storm. A full retrofit runs $600 to $3,500 by anchor count, re-tensioning comes with every relevel, and the inspection that tells you which you need is free.

Check this first: the three-minute check

With a flashlight, from an access panel or an open corner of the skirting:

1. Is the strap tight? You should not be able to move it much by hand. A strap you can wobble is doing very little. Slack straps are the most common finding, and they come from the home settling: as the geometry changes, straps loosen.

2. Is the metal sound where it enters the ground? This is where they fail. A strap that looks perfect at the frame can be substantially corroded at the soil line, where wet sand and oxygen meet. Same for the anchor head. Poke it.

3. Is there a strap near each end of the home? Florida Rule 15C-1.0104 wants an anchor within two feet of each end, and a missing end tie is a common omission on older installs.

4. Are there ties running along the home, not just across it? Those are longitudinal ties, and the rule wants at least four anchors and straps at the end of each section. On a home set before the mid-1990s, none at all is the usual finding.

Then count what is there and compare it with the tie-down planner, which works out roughly what a home your size should have under Wind Zone II.

Why this matters around Wildwood

People assume anchoring is a coastal concern. Sumter County is a long way from either coast and is still HUD Wind Zone II, rated to 100 mph, and the record says why. The 2007 Groundhog Day tornado touched down near Wildwood at 3:08 in the morning as an EF-3 with 155 to 160 mph winds, ran 16.5 miles through the south side of The Villages and the mobile home communities of Lady Lake, killed eight people, and damaged or destroyed more than 1,500 homes and mobile homes. Irma put a 60-knot gust on Leesburg’s airport in 2017 and 8.57 inches of rain on the Wildwood gauge. Milton’s gusts ran 40 to 50 mph across the county in 2024, and Sumter’s evacuation order that night was for mobile homes and low-lying areas.

The homes that concern us most here are the ones set before the 1994 HUD standards. Florida Rule 15C-1.0104 keeps a separate anchor class for them, Type I at a 3,150-pound working load against Type II at 4,000, and they were typically anchored with fewer ties, at wider spacing, and with no longitudinal ties. Plenty of them are still in the parks along SR 44, in the original Lady Lake communities, and in the 1980s parks around Leesburg with their original anchoring.

Cause, fix, and cost

Failure	Why it happens here	Fix	Cost
Slack straps	The home settled on sand and the geometry changed	Re-tension, with a relevel	Included with the relevel
Corrosion at the soil line	Damp sand and oxygen, year-round; saturated ground on the flats	Replace straps and anchor heads	Quoted per anchor
Anchor stopped short on rock	Sand over limestone with boulders in the profile	Replace or relocate the anchor, test to depth	Quoted per anchor
Anchors loosened in saturated ground	A rainy season or a storm left ground that holds an anchor differently	Re-test, replace where short	Quoted per anchor
Missing ties at the ends, no longitudinals	Common omission on pre-1994 installs	Add ties to the 15C-1 layout	Part of a retrofit
Too few for the home	Homes widened, added to, or moved	Full retrofit	$600 to $3,500
Damage from digging or landscaping	Straps caught, anchors hit	Replace	Quoted per anchor

The connection to leveling

These two problems arrive together and for the same reason. Sand under a pier compacts, the home settles, and as it settles the straps slacken. So a home that needs releveling frequently also has anchoring that has lost tension, and a home with slack straps is usually telling you it has moved.

Which is why the cheapest moment to deal with anchoring is during a relevel, when the crew is already underneath and the skirting is already off. Strap re-tensioning is included, and replacing individual anchors while everything is open is far cheaper than a dedicated trip.

If you are running the settling self-check anyway, this is the other half of the same inspection.

Licensing, which is not optional here

Florida licenses mobile home installers under section 320.8249, and anchoring on a sited home is installation work under that licence. Ask for the number in writing, verify it is current with the state, and ask separately for the insurance certificate. The installer licensing page covers how to check and what else to ask.

This is one of the areas where the licence matters most in practice, because anchoring is invisible once the skirting goes back on. You will not be able to tell good work from bad by looking, which means you are relying entirely on who did it.

When to call

Before June if you can, when the ground is at its driest and no one is in line, and certainly before the next named storm. Send photos from underneath if you can get them, roughly how many straps you counted, whether they are tight, what the metal looks like at the ground, the home’s size, and roughly when it was set. If you do not know how to get underneath, say so; part of the free level check is looking at exactly this. The tie-downs and anchors page and the pricing page have the rest.

We cover Wildwood, Oxford, Lady Lake, Bushnell, Coleman, Webster, and Leesburg.

Frequently Asked Questions

How do I know if my tie-downs are still doing their job?

Go underneath with a flashlight and look at three things: is the strap tight enough that you cannot move it much by hand, is the metal sound where it enters the ground rather than rusted thin, and is there a strap within about two feet of each end of the home. Slack, rust at the soil line, or missing end ties are the three failures. A fourth, on any home set before the mid-1990s, is no longitudinal ties at all.

What wind zone is Wildwood in?

HUD Wind Zone II, rated to 100 mph, like all of Sumter, Lake, and Marion counties under 24 CFR 3280.305. That applies whether or not you are near a coast. Homes set before the 1994 HUD standards were anchored to a lighter rulebook and many have never been retrofitted.

What does anchor work cost?

A full anchor retrofit or new install runs $600 to $3,500 depending on home size and how many anchors are involved. Individual anchors and straps are quoted per anchor, and strap re-tensioning is included with a relevel.

Can I re-tension the straps myself?

The tensioning itself looks simple and the reasons not to are real: over-tensioning can damage the frame or the anchor, an anchor with corrosion you cannot see can fail under load, an anchor that stopped on limestone before it reached depth is not what it looks like, and in Florida this is licensed installation work. It is also the cheapest thing to have done properly, because it is usually bundled with other work.