Answer first: Florida Rule 15C-1 sets the tie-down standard: rated straps and ground anchors, roughly every 5 feet on post-1994 homes, installed and inspected to spec. Marion County is Wind Zone II. Florida law prohibits windstorm insurance on non-compliant homes, and carriers ask for the paperwork. Assessment, tensioning, and replacement are licensed-installer work (s. 320.8249, F.S.), quoted in writing after a count under your home.
What the system is, in plain terms
Under your home, steel straps should run over or attach to the frame and angle down to anchors screwed deep into the ground. In a windstorm, the home tries to slide and the roof tries to fly; the straps turn both forces into tension and feed them into the ground. That is the whole idea. It works when the straps are rated, tensioned, and spaced right, and the anchors are matched to the soil. It quietly stops working when straps slacken as the home settles, anchors loosen in soft wet ground, or corrosion eats the strap where it meets the dirt.
That is why tie-downs and releveling belong in the same conversation. A frame that has settled has changed every strap's geometry and tension. Relevel without rechecking straps and you have a level home with a storm system in an unknown state.
What an assessment covers
| Check | Looking for | Why it matters |
|---|---|---|
| Count and spacing | Straps vs. what your home's length/age requires | Under-strapped homes fail the standard and the storm |
| Strap condition | Section loss, deep rust, damage at the dirt line | A strap is only as strong as its worst inch |
| Tension | Slack from settling, over-tension from bad geometry | Slack straps do nothing until it is too late |
| Anchors | Movement, pull-out, wrong type for the soil | Wet-season soft ground needs the right anchor, not the handy one |
| Paperwork | What documentation exists for your setup | Carriers want certification; sales and title events want it too |
The insurance reality
This is the part that moves people off the fence, so here it is plainly. Florida law prohibits the sale of windstorm insurance on a manufactured home that is not anchored in accordance with Florida law. Carriers tighten manufactured-home requirements after every bad season, and more of them now want the installer's certification and inspection sign-off before writing or renewing. On the good side, a documented, current-code system can earn wind-mitigation credit. Either way, the straps under your home are now an insurance document. Our inspection prep page covers getting the paperwork side in order before your carrier asks.
Costs run by the deficiency: tensioning and a few replacement straps is a modest job; anchoring a under-strapped older home to current standard is a bigger one, quoted in writing from the count. No scare pricing. The cost guide has ranges.