Mobile Home Tie-Downs & Anchors in Edinburg, TX

Tie-downs are the steel straps and ground anchors that hold a manufactured home to the earth when wind tries to lift and slide it. In Hidalgo County that means a system built to the Texas Wind Zone I standard in 10 TAC 80.24: rated straps, corrosion-resistant anchors driven in the direction of load, diagonal ties spaced by the state’s table, and a tie within two feet of each end of every I-beam. We arrange installs, retrofits, replacements, and re-tensioning across Edinburg and Hidalgo County through licensed, insured Texas installers. A full anchor system runs $600 to $3,500, single anchors are quoted individually, and the inspection that tells you what is under your home is free.

Wind Zone I, and why that is not the reassurance it sounds like

The federal manufactured home construction standard at 24 CFR 3280.305 splits the country into three wind zones. Texas puts the same split into state law at Section 1201.256 of the Occupations Code: “Aransas, Brazoria, Calhoun, Cameron, Chambers, Galveston, Jefferson, Kenedy, Kleberg, Matagorda, Nueces, Orange, Refugio, San Patricio, and Willacy counties are in Wind Zone II. All other counties are in Wind Zone I.” Hidalgo County is Zone I. The county line with Cameron and Willacy, twenty-odd miles east of Weslaco, is where Zone II starts.

Zone I is the lightest of the three standards, designed against a 15 pound per square foot horizontal wind load rather than the 100 mph design of Zone II. Two consequences follow.

First, the homes are lighter. Under 10 TAC 80.24(a), a Zone I home built on or after September 1, 1997 cannot be installed in a Zone II county, but a Zone II home can come here. So most of the stock in Hidalgo County is Zone I stock, built to the lightest wind standard there is.

Second, the storms do not read the map. Hurricane Dolly came ashore on South Padre Island as a Category 1 in July 2008 and put a 71 mph gust on the Weslaco airport, 60 mph on the Edinburg airport, and 52 mph on McAllen. Hurricane Hanna made landfall in Kenedy County on July 25, 2020 with 90 mph sustained winds and gusted to 60 mph at McAllen, 59 at Weslaco, and 54 at Edinburg, while dropping 14.40 inches of rain on a gauge outside Mission and leaving 18 inches to 4 feet of standing water east of Edinburg. The Weather Service’s Hanna summary says “hundreds of poorly built homes and other structures were damaged, mainly roofs” and “dozens of buildings in colonias were uninhabitable.” A Zone I anchor system that is slack, short, or rusted through at the soil line is the difference between a home that rides out 60 mph and one that does not.

What the Texas standard requires

Everything below is from 10 TAC 80.24, the state’s generic anchoring standard, which governs any used home installed without its manufacturer’s instructions. Full detail on our Texas tie-down requirements page.

Strapping. Type 1, Finish B, Grade 1 steel, 1.25 inches wide and 0.035 inches thick, zinc coated, marked every five feet.

Rating. Ties must carry a 3,150 pound working load with no more than 2 percent stretch and survive a 50 percent overload of 4,725 pounds. They must be designed so they cannot disconnect themselves when slack.

Anchors. Installed in the direction of load, head flush or within an inch of the ground, corrosion resistant, with the stabilizer plate top within an inch of the shaft. Re-conditioned anchors, straps, and clips are not allowed on new installations.

Spacing. The Wind Zone I diagonal-tie table runs by home width and by the vertical distance from anchor head to the underside of the floor joist. At 30 to 40 inches, the common height for a home set at the state’s 18-inch minimum clearance, a 12-foot single or 24-foot double is capped at 8 feet between ties, a 14 or 28 at 10 feet, a 16 or 32 at 12 feet, an 18 or 36 at 14 feet. The higher the home sits, the closer the ties. The end tie on each beam sits within 24 inches of the beam’s end, and no two anchors sit within 4 feet of each other.

Longitudinal ties. One per end of each section on a 12-wide, two on wider homes, set at the angle the table specifies.

Vertical ties. Any vertical tie the home has must connect to a ground anchor.

Roof pitch. The table only applies to roofs of 20 degrees or less. Steeper roofs need an engineered design.

The tie-down calculator works the table for your home’s width, length, and height and prices the result.

Why straps go slack here

Anchoring and leveling are one conversation because the same ground causes both problems. A home on the Harlingen or Mercedes clay south of Pharr and east of Weslaco rises and drops with the clay’s wet and dry cycle, and every drop leaves the straps looser than they were set. A home on the well-drained Hidalgo loam around Edinburg settles more slowly but settles. Either way a strap set tight in one year is slack a few years later, and a slack strap is doing nothing until the moment it snaps tight under a gust.

Corrosion is the other half. The strap and the anchor shaft are galvanized, but the soil line under a home that stood in Hanna’s floodwater is a wet, salty place. Runn silty clay and the saline phases of Harlingen and Mercedes clay mapped around Alamo and Weslaco are exactly that. A strap can look perfect at the beam and be half gone where it enters the dirt.

What the crew does

Inspect. Under the home with a light. Every strap pulled by hand for tension, every anchor head checked for a stabilizer plate and for rust at grade, the count compared against the table for the home’s width and height, and the ends checked for the 24-inch tie. Findings in writing.

Re-tension. Existing serviceable straps brought back to spec. Included in every relevel, because lifting the home changes every strap’s tension.

Replace. Rusted straps, missing stabilizer plates, and anchors that have pulled or tipped come out and new ones go in.

Install or retrofit. New anchors driven in the direction of load, in the soil class the crew has actually probed, with the diagonal tie leaving the top of the I-beam as the standard requires. On clay the anchor length and the stabilizer plate matter more than on loam.

Every crew arranged through us holds a TDHCA installer’s licence, because anchoring is installation under Section 1201.003 of the Occupations Code and Section 1201.101(d) makes the licence mandatory. On a new installation the installer files a Notice of Installation within seven days so the state can inspect before the skirting goes on.

What it costs

A short singlewide that needs a few anchors replaced lands near the bottom. A long doublewide set high on clay, with longitudinal ties and every diagonal tie on the table, lands near the top. Published on the pricing page.

When to call

Call before June, which is when hurricane season starts and when every installer’s calendar fills. Call after any relevel that was done without the straps being touched. Call if your home was set before 1997 and nobody has been under it since, or if it stood in water in 2018 or 2020. And call if you can move a strap by hand; see tie-downs loose or rusted for the three-minute check.

We cover Edinburg, McAllen, Mission, Pharr, San Juan, Alamo, Donna, and Weslaco.