A tie down upgrade means an Alabama Manufactured Housing Commission (AMHC) certified installer counts the straps and ground anchors on an older home and brings them up to the Hurricane Zone standard that Alabama sets for Mobile and Baldwin counties. We found no published Mobile price for upgrading an older home. The nearest sourced figure is a Delaware state estimate of $1,610 to $2,250 to anchor one manufactured home (Delaware DNREC, 2022 dollars). We found no source that states a job time; it depends on how many ties the home needs. An owner may not do the work unless the owner is a certified installer.
Tie down upgrade for older mobile homes: who does it
Mobile Mobile Home Movers is a referral service, not an installer. We pass your request to one independent local company. Alabama requires an AMHC certified installer to install a home, which includes tying it down and anchoring it, so ask the company for the installer's certificate number. Alabama rule 535-X-12-.02(5) defines installation as locating, setting up, siting, tying down, anchoring or placing a home. The installer, or an employee holding a current certificate of training with the certified installer present for the whole job, must do it (AMHC rule 535-X-12-.01).
The rule text we read does not separately address adding or replacing ties on a home already in place. Treat an upgrade as installer work, and ask the installer to confirm with the AMHC what notices, if any, apply to your home. Hiring an uncertified installer is a violation that can bring a fine of up to $500 per home (AMHC rule 535-X-12-.04(4)). A mover or carrier may take off wheels and axles but may not install (AMHC rule 535-X-12T-.08), so a moving company is the wrong company for this job unless it also brings a certified installer.
Upgrade mobile home anchors to wind zone 2: what the Alabama standard asks for
To upgrade mobile home anchors to wind zone 2 is to make the system match the Hurricane Zone table and the parts rules. This is what the installer measures the old system against. Under rule 535-X-13-.02(17), a Hurricane Zone is an area that has seen sustained winds of 100 mph or more, and Mobile and Baldwin counties are named as such zones, so the Wind Zone II and Hurricane Zone anchoring table applies on both sides of the bay (AMHC rule 535-X-13-.07).
The count of ties by home length
| Home length (not counting the draw bar) | Vertical ties per side | Diagonal ties per side | Ties on both sides |
|---|---|---|---|
| Up to 40 ft | 5 | 5 | 20 |
| 41 to 60 ft | 7 | 7 | 28 |
| 61 to 90 ft | 9 | 9 | 36 |
The per-side counts come from AMHC rule 535-X-13-.07(3). The totals are our arithmetic, doubling each row. A typical 16x80 single-wide falls in the 61 to 90 ft band; ask the installer to measure. If a pier is over 24 inches high, the rule adds one diagonal tie for each extra 12 inches or part of it. The table counts ties, not anchors, and one anchor carries one tie unless it is approved for the combined load (rule .08(4)). The rule text we read gives no separate double-wide count, so the installer should show you how the count was reached, following the maker's manual where there is one.
Vertical ties at every diagonal spot
The rule notes that federal standards require homes designed for Wind Zones II and III to have a vertical tie at each diagonal tie location. Ask the installer whether your old system has vertical ties at all, and where each diagonal tie sits.
Approved parts and how they go in
- Anchors. Only Commission-approved anchors tested to at least 4,725 pounds may be used. Each is driven to full depth with the head within 1 inch of the soil surface (AMHC rules .07 to .09). Model marks stay visible after installation so an anchor can be traced, so ask how the installer will show that an old anchor with no readable marks is an approved model.
- Plates and collars. An anchor that takes a diagonal pull needs a stabilizer plate or a concrete collar 10 inches in diameter and 18 inches deep.
- Straps. Steel straps are 1 1/4 inch wide and 0.035 inch thick. A kinked or bent strap is a reason to ask for a replacement.
- Roof protectors. Over-the-roof ties need a metal roof protector.
- Soil. The installer finds the soil class, and each anchor goes only in a class it is approved for. Unless the soil is tested with a probe, a Commission-approved C4 or C5 anchor is used. Mobile is low-lying Gulf Coastal Plain, so ask whether a probe test is part of the quote. We found no source naming a soil class for any part of Mobile County.
The mobile home tie downs page covers the parts, soil classes and anchor types in full.
Piers, pads and leveling come first
Ties pull against the home's support. Alabama's minimum blocking rule for homes without a maker's manual puts piers under the main frame no more than 6 feet apart and no more than 2 feet from each end, on at least a 16 x 16 x 4 inch concrete pad. Piers over 32 inches are double-tiered, and the maximum height is 60 inches unless an engineer designs it (AMHC rule 535-X-13-.06). See mobile home leveling. Ask the installer whether re-leveling comes first.
My mobile home has no tie downs: what to do
Start by confirming that the home really has none. Look through the skirting access or under the home for straps on the frame and anchors in the ground, and photograph what you see. Do not crawl under a home after a storm or in standing water.
- Photograph the home, the data plate and anything under it.
- Ask an independent certified installer to count and describe what is there. Ask for the AMHC certificate number and check it on the AMHC installer search.
- Ask the installer to compare the findings with the table above, including the pier-height rule.
- Get a written quote that lists the number of ties, the anchor model, the plates or collars, the roof protectors and who calls Alabama 811.
The AMHC says all homes shall be installed by a person duly certified by the Commission, and that it handles consumer complaints. Code of Alabama 24-5-32 makes it unlawful to occupy a manufactured home that is not tied down to properly installed ground anchors. A home with no tie downs at all is a question for the installer and the AMHC, not for the owner to fix with a hardware-store kit.
Older mobile home tie down cost: sourced figures and what moves them
| Item | Price | Source and date |
|---|---|---|
| Anchoring one manufactured home, total (state estimate, size and wind zone not stated) | $1,610 to $2,250 per home | Delaware DNREC I-ADAPT sheet, 2022 dollars |
| Of that, anchors (hardware) | $110 to $250 per home | Same sheet, 2022 dollars |
| Of that, installation | $1,500 to $2,000 per home | Same sheet, 2022 dollars |
| Installation labor, one Florida company's published rate, plus materials | About $75 per anchor | Level My Mobile Home, page dated April 16, 2021 |
| Double-head double-helix ground anchor, retail, materials only | $29.99 to $40.99 each | Mobile Home Outfitters, checked October 17, 2026 |
| Frame tie strap with buckle, retail, materials only | $10.99 to $19.99 each | Mobile Home Outfitters, checked October 17, 2026 |
| Frame tie strap with hook, retail, materials only | $12.99 to $24.99 each | Mobile Home Outfitters, checked October 17, 2026 |
These are not Mobile prices. The first three come from a Delaware state adaptation sheet (DNREC I-ADAPT), the labor rate is one Florida company's in 2021, and the last three are retail prices for parts. No source we found gives an Alabama or Gulf Coast price for an upgrade, so ask each company for a written quote.
As arithmetic only, not a quote: a home in the 61 to 90 ft band needs 36 ties before extras. At $29.99 to $40.99 per anchor and $10.99 to $19.99 per strap, parts come to about $1,475 to $2,195. That is retail parts only, with no labor. If an approved anchor carries two ties, the anchor count halves. The sum excludes labor, pier-height extras, plates or collars, roof protectors, longitudinal ties, a probe test, re-leveling, travel and the installer's margin. Labor is shown on its own in the table: one Florida company's 2021 rate and the Delaware installation range. Neither is a Mobile price.
What moves the price of an older home's upgrade
- Tie count. The length band sets 20, 28 or 36 ties, and pier height above 24 inches adds more.
- What is already there. The installer decides which old parts can stay. Ask which old parts it would keep, which it would replace and why.
- Soil and probe testing. The soil class decides which anchor is approved for the spot, and a probe test may be quoted as its own line.
- Plates, collars and roof protectors. Each adds parts and labor.
- Leveling and pier repair. Ask the installer whether leveling or pier repair comes first and whether it is quoted separately.
- Access. Ask whether skirting, crawl space height or standing water affects the quote.
An installer also pays state fees, such as $130 for each AMHC installer decal (AMHC fee schedule, rule 535-X-19-.03). Those are the installer's costs, so ask to see any line on a quote that mentions them.
Comparing upgrade quotes: questions to ask
- What is your AMHC certificate number, and who will be on site the whole time?
- How many ties are there now, how many does the table call for at this length and pier height, and how many are you adding?
- Which anchor model is it, and which soil classes is it approved for?
- Is a soil probe test included?
- Will plates or concrete collars go on the anchors that take diagonal pulls?
- Will vertical ties go in at each diagonal location, with roof protectors on over-the-roof ties?
- What happens to straps and anchors you remove, and are any reused?
- Who calls 811, and what does the quote exclude, such as leveling, pier repair or skirting access?
- What will I receive in writing, with photos, afterwards?
Get two or three quotes in writing and compare them line by line. After the work, an inspection can confirm it. See mobile home tie down inspection for what a report should hold.
Call 811 before anchors go in
Alabama 811 law calls for notice at least two but not more than 10 working days before excavation, and the notice is valid for 20 working days. Excavation includes any operation that moves earth with mechanized equipment, including boring. Near a marked line, hand digging is used within the line's width plus 18 inches on each side (Alabama 811). Whether an auger driven by a machine counts is a question we could not settle, and a revised law takes effect January 1, 2027. Ask the installer who places the call and when.
Insurance, lenders and selling an older home
The Alabama Insurance Underwriting Association (AIUA) covers eligible property in Baldwin and Mobile counties south of the 31st parallel. Its FAQ says a mobile home must be at least 8 by 32 feet, have tie downs installed and show proof of the current completed AMHC Installation Certification Label. A mobile home is not eligible for replacement-cost cover under its DP-2 form. Applications go only through an AIUA agent. The FAQ does not say how a home set before the label existed qualifies, so ask an agent and the AMHC before you assume an older home can be insured there. We found nothing on what private carriers require.
If a lender asks for tie downs before closing, ask exactly which document it wants. An AMHC set-up inspection and an installer's decal are not the same thing. If a used home is sold, AMHC lists a $100 resale decal for used manufactured homes (rule 535-X-19-.03), and we could not find when it must be bought.
Older mobile home hurricane upgrade: attached structures and storm readiness
An older mobile home hurricane upgrade goes beyond the straps. FEMA P-85 reports that in Florida, after Hurricane Georges, attached site-built additions failed on older homes, and after Hurricane Charley screen enclosures and carports did. Ask the installer how any carport, porch or screen room is anchored, and whether it is attached to the home or stands on its own. We found no Alabama rule that sets the anchoring of a site-built add-on, so treat it as a separate question.
Hurricane season runs June 1 to November 30. Mobile County also has a spring tornado season from March to May and a second one in November and December. Do the check and book the upgrade before the season starts, not on the day a storm is named.
- Before the season. Look at the straps and anchors, check that nothing has been cut, and photograph them.
- After a storm. Photograph any shift and do not re-tension anything yourself. Leave a home that has moved off its piers. Have the gas, electric and water trades check the lines, since Alabama leaves those connections to them (AMHC rule 535-X-12-.02). Then call the installer and tell your insurer.
- Evacuations. Follow the orders of local emergency officials. A tie down upgrade is no reason to stay.
What "older" means: three eras and the data plate
Three dates matter. They come from federal rules and from the Federal Emergency Management Agency's (FEMA) manual on protecting manufactured homes, known as P-85.
| Era | What is known | What to do first |
|---|---|---|
| Built before June 15, 1976 | AMHC rule 535-X-12T-.04 names both homes built before June 15, 1976 and pre-HUD homes. Alabama will not install a home built on or after that date without a HUD label and data plate (AMHC rule 535-X-13-.03(4)). | Ask the installer to look for any label or plate and to describe what is on the frame and in the cabinets. |
| June 15, 1976 to July 12, 1994 | HUD Code homes built under the earlier wind provisions. FEMA P-85 says HUD tightened the wind criteria for Wind Zones II and III on July 13, 1994. | Read the data plate for the wind zone the home was built for. |
| July 13, 1994 and later | Built under the revised Zone II and III wind rules. FEMA P-85 reports that these homes did better in hurricanes. | Count the ties against the Alabama table above. |
The data plate shows the wind, roof-load and thermal zones the home was built for. The AMHC says it is usually in a kitchen cabinet, at the electrical panel or in a bedroom closet. Photograph it before anyone calls an installer.
Pre 1994 mobile home tie downs: why the date matters
After Hurricane Andrew in 1992, HUD changed the wind design rules for the two hurricane-exposed zones, and the change took effect on July 13, 1994 (FEMA P-85, chapter 1). A home built before that date was designed to the earlier provisions. A newer date does not guarantee a good system, so have the installer check the count and parts of any home.
FEMA P-85 describes what investigators found in older homes in Monroe County, Florida, after Hurricane Georges in 1998. These are Florida observations, not Alabama findings. Anchors were poorly attached. Parts had no corrosion protection. Homes were not fastened to their piers. Straps were attached badly. Piers were dry-stacked block with nothing holding them together, in areas exposed to moving floodwaters. Attached site-built additions failed. That list reads like a checklist for an upgrade, and the sections above use it.
Tie downs for a pre hud mobile home
The era table above holds the rules for a home built before June 15, 1976. For tie downs on a pre hud mobile home, the open question is the count: ask the installer how it will work out the wind zone for it.
Alabama's transport rule adds one more caution. A home built before June 15, 1976, or a pre-HUD home, as the rule names both, cannot be brought into Alabama without a letter of exception from the AMHC (AMHC rule 535-X-12T-.04). That rule says "into Alabama." It does not say what applies to a pre-1976 home already here. Before you pay for an upgrade, ask the AMHC and the installer whether anything about the home's age changes the job.
How older homes fared in hurricanes, and what Mobile saw in 2020
FEMA P-85 reports that after Hurricane Charley in 2004, pre-1976 homes suffered widespread damage, and screen enclosures and carports failed. Homes built from 1976 to 1994 did somewhat better, and homes built after 1994 did better still. Those are Florida observations, but they point the same way as the date rules above.
Closer to home, Hurricane Sally came ashore near Gulf Shores on September 16, 2020 with maximum sustained winds of 105 mph. About five weeks later Hurricane Zeta, with winds up to 110 mph, struck downtown Mobile. After the two storms, 852 households in mobile homes applied for FEMA individual assistance. That equals 70% of the households living in mobile homes in the city, and the City of Mobile's recovery plan says it shows how vulnerable mobile homes are in a weather event (City of Mobile Local Recovery Plan, 2024). Mobile County has had 39 federally declared disasters in a record that starts in 1953, 24 of them hurricanes. Tie downs meet a standard. They are not a guarantee that a home will stay put.
What Alabama's rules say about older homes, and what they leave open
Alabama has had anchoring and blocking rules since January 1, 1976, and the current AMHC chapter took effect on July 29, 1993. Here is what we could not find in the rule text:
- No sentence says an older home already set in Mobile or Baldwin County must be upgraded.
- The rules we read do not say how the occupancy rule in Code of Alabama 24-5-32 applies to a home whose old ties are worn or short of today's table.
- Rule .07(6) says a Wind Zone I home cannot be installed in Wind Zone II. The rule does not say how that applies to anchors added to a home that has been in place for years.
- The rules we read set no re-inspection interval for tie downs.
No rule we read says a home that has ties must be upgraded to today's table. A home with no ties at all is a different matter, as above. The practical reasons to upgrade also come from storms, insurance, a sale or an inspector's finding. Do not rely on a company that tells you the law forces an upgrade. Ask it to name the rule.
Older home tie down questions
Can older homes be upgraded with new tie downs?
Yes. An AMHC certified installer can bring the count and parts up to the Hurricane Zone table. No rule we read requires it for a home already in place, so ask the installer what it recommends and why.
My mobile home has no tie downs. Is that legal?
Alabama law (Code of Alabama 24-5-32) makes it unlawful to occupy a manufactured home that is not tied down to properly installed ground anchors. The rules we read do not say how the AMHC treats a home set long ago. A home set up today needs ties, and the rule makes it a misdemeanor to occupy a home not installed to the Commission's standards (AMHC rule 535-X-13-.12). Ask the AMHC how it treats your home.
What is different about pre 1994 mobile home tie downs?
These homes were built before HUD tightened the Zone II and III wind rules on July 13, 1994 (FEMA P-85). Read the data plate for the wind zone and ask the installer to check the count, parts and corrosion.
Can I upgrade my own tie downs?
No. Anchoring is installation in Alabama, and an owner may not install unless the owner is a certified installer (AMHC rule 535-X-12-.01).
How many tie downs does a 16x80 need?
An 80 ft home falls in the 61 to 90 ft band, which calls for 9 vertical and 9 diagonal ties per side, or 36 in all, plus extras for piers over 24 inches (AMHC rule 535-X-13-.07). A new home follows its maker's manual.
How much does an older mobile home tie down upgrade cost?
We found no published Mobile price. The nearest sourced figure is Delaware's $1,610 to $2,250 per home (2022 dollars; home size and wind zone not stated). Ask for a written quote.
Do I need a permit for an upgrade?
We did not find a permit rule for re-anchoring an existing home. Mobile County says the owner, installer and contractor share responsibility for a building permit (Mobile County building code amendments). Ask the county and the installer before work starts.
Will insurance cover a home without tie downs?
The AIUA requires tie downs installed and proof of the AMHC installation label. Ask your agent what a private carrier requires.
Can a mover just add tie downs while it moves my older home?
Only if the company is also a certified installer or brings one. A carrier may remove wheels and axles but may not install the home (AMHC rule 535-X-12T-.08).
Does an upgrade make the home hurricane-proof?
No. An upgrade makes the anchoring meet a standard, and the 2020 storms above show what mobile homes in Mobile face.