Storm Shelters: Above-Ground vs. Underground Units

Tornado season 2025 already broke storm records. A March outbreak produced 118 twisters, the largest ever for that month. By mid-April, the United States logged more than 500 preliminary tornado reports. With storms this frequent and severe, having a storm bunker on your property can keep you and your family protected. If you’re torn between above-ground and underground storm shelters, this guide will break down their advantages to help you choose the right one for your household.

Considerations When Choosing Storm Shelters

A storm shelter is a safety room located either above ground or buried below your yard. It’s designed to protect you and your family from tornadoes and flying debris. Manufacturers build these chambers with steel or concrete walls and secure doors to meet rigorous safety standards.

Additionally, place a storm shelter within a few steps of your home so everyone can enter immediately after a warning. Look for FEMA or ICC certification to confirm the structure meets tested performance and construction standards. Also think about capacity and interior size to ensure it fits your household and emergency supplies.

Advantages of Above-Ground Storm Shelters

Above-ground storm shelters are installed right on your property’s surface typically in a backyard or side yard. The installation process doesn’t require extensive digging and soil removal, so most setups usually wrap up in a day or two. Since manufacturers don’t need heavy excavation equipment or complex engineering, materials and labor expenses are lower. You can also purchase a prefab unit for a fraction of the price of an underground model.

Additionally, above-ground shelters grant barrier-free access. You won’t need to climb steps or descend a ladder during an emergency. This ease of entry helps everyone quickly reach safety.

Advantages of Underground Storm Shelters

Conversely, underground storm shelters are buried beneath the yard’s surface. They’re surrounded by thick walls that absorb the impact from flying objects and prevent collapse even during the strongest tornadoes.

Buried shelters also maintain stable interior temperatures. The soil helps buffer heat during summer and regulate cold temperatures during winter. Even without portable heaters or fans, you can stay comfortable while you wait out the storm. Additionally, underground shelters free up above-ground space. That means you can still host backyard gatherings or grow a garden right above the shelter on regular days. Also assess the area you have: can you excavate in your yard or do you have space for a buried chamber?

Finally, underground rooms offer long-term durability. Concrete and steel resist corrosion and weathering year after year. You only need occasional inspections to keep the shelter in top condition. If those evaluations uncover cracks or seal damage, schedule repairs promptly to keep the shelter stormproof.

Above or Below: Which One Should You Pick?

Above-ground and underground storm shelters both meet rigorous safety standards when properly installed, so your decision comes down to fitting one into your family’s daily life.

First, think about mobility: if anyone in your household uses a wheelchair or has limited mobility, an above-ground unit with a ramp or ground-level entry lets them reach safety in seconds.

Next, check your property status. Renters will need landlord approval before digging while homeowners face fewer restrictions and can move forward more quickly.

Finally, compare installation costs and maintenance: above-ground models often install faster but may require more upkeep whereas underground shelters cost more up front.

Which shelter will you choose to keep your family safe when the next storm hits?

For more expert tips and personalized guidance, head over to familyprotectionassociation.com. You’ll find in-depth guides and a team ready to help you prepare with confidence.

10 FAQs: Storm Shelters

  1. What’s the main difference between above-ground and underground units?
    Above-ground shelters sit on or above your property’s surface; underground units bury beneath the yard. Each offers unique pros and cons in cost, space, and access.
  2. Which option installs faster?
    Above-ground units usually install in one to two days. Underground shelters require excavation and take longer—often a week or more.
  3. How do costs compare?
    Above-ground shelters cost less up front, since they don’t need heavy excavation. Underground units run higher in materials and labor.
  4. Can I access each shelter easily?
    Surface shelters provide step-free entry and work well for those with mobility challenges. Underground units may require stairs or a ladder.
  5. Do underground shelters stay more comfortable?
    Yes. The earth naturally insulates, keeping underground spaces cooler in summer and warmer in winter without extra equipment.
  6. What maintenance does each shelter need?
    Above-ground units need occasional seal and hinge checks. Underground shelters need periodic inspections for moisture, cracks, or drainage issues.
  7. Will either shelter affect my yard’s appearance?
    Above-ground shelters occupy visible space and may alter landscaping. Underground units leave the surface clear for gardens or play areas.
  8. Are there permitting differences?
    Many areas require permits for both types, but underground installations often involve more stringent soil- and drainage-related approvals.
  9. Which shelter type offers better debris protection?
    Both meet safety standards when built correctly. Underground shelters gain extra protection from packed soil and concrete around them.
  10. Can I get an insurance discount?
    Some insurers offer discounts for either shelter type. Check with your provider, as savings vary by model and location.