Above-ground steel safe rooms in St. Louis

We install above-ground steel safe rooms in St. Louis–area garages, utility rooms, basements and on dedicated pads. An above-ground safe room is a steel unit anchored to a concrete slab, built and tested to FEMA P-361 and ICC 500 criteria for a 250 mph design tornado. It's our default recommendation for slab-on-grade homes, for anyone who can't easily get down a basement stair, and anywhere the water table or a floodplain makes going below ground a bad idea. One national manufacturer's St. Louis list starts at $3,995 for a small unit before installation; national guides put above-ground shelters at $3,000–$12,000+.

Site visit before any price · Free itemized written quotes · Test reports and door labels with every unit · Permits named on the quote

Why above ground often wins in St. Louis

Below-ground shelters fight two local conditions: soils that drain slowly in many places, and floodplains along the Missouri, Meramec, River des Peres and, across the river, the American Bottom. An above-ground unit sidesteps both. It also:

• opens at floor level — no stairs or hatch for an older parent, a wheelchair user or someone carrying a child;
• goes where you are — in the garage off the kitchen, in a utility room, in a basement corner;
• installs fast — once the slab is ready, one manufacturer publishes an install time of under four hours;
• can move with you — units bolt down and can, in principle, be unbolted.

Both types can meet the same standard. Above ground avoids groundwater — though, like any shelter, it still has to sit above flood elevation. Our above-ground vs underground guide lays out the trade-offs.

The slab is half the shelter

A steel safe room is only as good as what it's anchored to. Manufacturers publish minimum slab specifications for their units. One national manufacturer's St. Louis page, for example, requires the slab to be "at least 4" thick with a minimum psi of 3000," notes that no wire mesh is required, lists minimum pad dimensions for its units, and asks for about two weeks of cure on new concrete before installation. Other manufacturers describe anchor patterns — one specifies anchor bolts every 12 inches around the footprint.

What that means on your site:

• Garage slabs are often a reasonable starting point, but thickness and strength vary. Our installation crew checks the slab where the unit will sit.
• Cracked, patched or thin slabs may need a new pad poured for the unit.
• Outdoor placement needs its own pad at the size the manufacturer specifies.

Our existing garage slab guide explains how a slab is checked.

Sizes and how many people they hold

FEMA's guidance for a home tornado safe room is 3 square feet per person. Here's what common footprints hold at that density:

Three square feet is close quarters; you'll want extra room for anyone in a wheelchair, someone who can't stand, and pets. See capacity and access.

Doors

The door is the weakest point of any shelter, so it's tested as part of the system. FEMA requires safe room doors to be "tested, listed, and labeled," with the label attached to the door. Before you buy, look for that label and ask for the test documentation. Our doors, anchors and maintenance guide explains what to check every year.

What it costs

List prices don't include a slab, delivery to the spot inside your garage, anchors and labor, or the permit. Those numbers come from published sources, not from us. Your written quote includes every line. Our cost guide breaks down each line; the instant quote sizes a unit for your household.

Missouri offers homeowners no safe room grant or rebate; see grants, rebates and financing.

Placement

• Garage: most common. Leave room to park and to open the shelter door with the car in.
• Utility room or interior closet: needs a slab that meets spec and a path for the unit to get there.
• Basement: see basement safe rooms — stair access usually rules out one-piece units.
• Outside on its own pad: for mobile-home owners and properties without a suitable garage.

Permits

Unincorporated St. Charles County requires a building permit for every storm shelter. Elsewhere, rules vary by city. We tell you what's needed in the quote. See permits.

Our installation crew is a Missouri construction contractor that installs storm shelters as a dedicated part of its business.

If you're still weighing an above-ground unit against a basement room or an in-ground shelter, the complete St. Louis storm shelter guide sets every option side by side, with costs, standards and permits.

Frequently asked questions

Is an above-ground shelter as safe as an underground one? Units built and tested to the same FEMA P-361 and ICC 500 criteria are designed for the same tornado. Above ground adds easy access and avoids groundwater; it still belongs above flood elevation.

Can it go in my garage if I have a car? Usually. Smaller units fit in a corner or at the front of a bay. We measure on the site visit.

What if my garage slab isn't thick enough? A pad is poured to the manufacturer's specification and allowed to cure before the install; your quote will show it as its own line.

Can I take it with me if I move? Bolt-down units can be removed and reinstalled, but that's a job for an installer and usually needs a new permit.

Get a quote

Tell us about your garage or where you'd like it, and how many people need to fit. Get a quote.