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Storm Shelter Installation in Ada, OK
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Storm Shelter Installation in Ada, OK

Storm Shelters · Ada, OK

In-ground storm shelters set level and backfilled

Storm shelter installation for an in-ground unit is mostly dirt work, and the dirt work is what we do. We dig the hole, set the shelter level, backfill around it and grade the ground. The shelter and its design come from the manufacturer. FEMA recommends residential safe rooms be designed for 250 mph tornado speeds regardless of location. FEMA also says prefabricated in-ground safe rooms are readily available and more easily installed than site-built ones. In FEMA's terms, an in-ground unit has soil on all four sides. On an ongoing ranch project near Sulphur, we set a storm shelter.

Tornado numbers here make the case for a shelter. NWS Norman counts 4,518 Oklahoma tornadoes from 1950 through 2025. That averages 59.4 a year, and May alone averages 24.4. Pontotoc County has 74 in the same NWS county table. We cover about a 50-mile circle around Ada. That takes in Sulphur, Stratford, Seminole, Shawnee, Ardmore and Durant. The 30,000-pound excavator that digs a shelter hole also handles our other excavation jobs. We price the dig after looking at the spot and the way in. Call (580) 344-7473 for a free estimate on your storm shelter dig.

What We Handle

  • OKIE811 locate called in before any digging
  • Hole dug to the maker's spec sheet
  • Access cleared to bring the unit in
  • Shelter set level in the hole
  • Backfill placed in lifts around the unit
  • Grade sloped away from the door
  • Spoil spread on site or hauled off
  • Stumps or an old shed cleared first

Free Storm Shelters Estimate

Tell us about your property and we'll get back to you fast.

How does an in-ground storm shelter get installed?

Every shelter dig starts with a locate. Oklahoma law requires notice to OKIE811 at least 48 hours before excavation. The day of the call, weekends and legal holidays do not count. The ticket expires 14 calendar days from the excavation start date. Then the hole gets dug to the maker's spec sheet. One maker's 8-person in-ground unit calls for a hole 10 feet wide by 12 feet long. That sheet also wants room on site for the dirt and a 7-foot access width. The Oklahoma Geological Survey describes Cross Timbers soils around here as sandy with reddish subsoils.

The shelter gets set level in the hole. FEMA says in-ground safe rooms need anchoring so rising groundwater cannot push the submerged unit out of the ground. That anchoring follows the shelter maker's install instructions. FEMA's anchoring fact sheet tells installers to follow those requirements precisely. Backfill then goes back in lifts around the unit. FEMA says the ground should slope away from the entrance so stormwater stays out. We finish with grading that turns water away from the door. One maker's sheet makes the homeowner responsible for leftover dirt, so we handle spreading the spoil pile too.

Where should a storm shelter go on your property?

Distance from the house is the first thing to settle. ICC 500 caps the travel distance from the nearest house entrance to the safe room opening at 150 feet. FEMA says to reach an outside safe room early enough to avoid injury from wind, debris, hail and rain. FEMA also notes that stairs into an in-ground unit can slow someone who uses a wheelchair or crutches. We handle tearing out an old shed when one sits on the best spot. On a new build, pick the shelter spot while planning site prep for the house pad.

Flooding is the other siting question for anything below ground. In May 2015, a woman in Oklahoma drowned from flash flooding in a below-ground storm cellar. She was sheltering from a tornado, FEMA's guide reports. FEMA says to ask the local building official or floodplain manager whether a proposed site floods. It lists the FEMA Map Service Center as one source for flood maps. In a mapped Special Flood Hazard Area, ICC 500 does not permit a below-ground safe room. Where flooding or a naturally high groundwater table rules out a hole, FEMA points to above-ground safe rooms.

What does storm shelter installation cost, and what helps pay for it?

Published ranges give a starting point. NerdWallet puts an underground or in-ground storm shelter at $4,000 to $20,000 or more. NerdWallet says the in-ground price depends on how much excavation and waterproofing the site needs. Fixr says ground prep and excavation is often left out of the shelter price and runs $1,000 to $4,000. Ask what each quote covers. Construction industry experts put a safe room at $3,000 to $8,000 or more, the SoonerSafe FAQ says. Our Oklahoma storm shelter cost guide sorts published prices by shelter type. For the dig itself, the estimate is free.

SoonerSafe, the state rebate, pays up to $3,000 per home. The rebate cannot exceed 75 percent of the safe room's actual cost. It is paid only after the safe room is built and documented. Only new safe rooms qualify. Pontotoc County was on the 2025 priority list. As of September 2026, the state says the 2026 round is not open. The Chickasaw Nation, with its seat of government in Ada, offers a Homeowner Preparedness Grant of up to $5,000. Storm shelters are on its list, and applicants must be Chickasaw citizens who own and live in the home. Each program decides who qualifies.

Tracked skid steer grading the dirt beside a brick house and lawn Dozer pushing dirt across an open cleared field

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Free, no-obligation estimates across Ada & South Central Oklahoma.

(580) 344-7473
What You Can Expect

How a Job With Us Runs

From the first look at the ground to the last pass of the blade, here is exactly how it goes.

1

Tell Us About the Property

Call (580) 344-7473 or send the form. Describe the land, what is on it, and what you want it to become. Photos help.

2

We Come Look

We meet you on the property, look at the growth, the ground and the access, and talk through the right way to do the job.

3

You Get a Real Number

The estimate is free and comes from seeing the land. You know the price and the plan before any machine shows up.

4

The Work Gets Done

The D6 and the excavator show up, the work gets finished, and the property is left clean and usable.

FAQ

Storm Shelters Questions, Answered

Common questions about storm shelters across Ada & South Central Oklahoma. Don't see yours? Give us a call, we're happy to help.

Call (580) 344-7473

Do I need a permit for a storm shelter?
Often, yes. The SoonerSafe FAQ notes that many local building codes require a permit and inspection for a safe room. Ask the city before the dig, or the county if you live outside city limits. Settle it before the locate call goes in.
How big a hole does an in-ground storm shelter need?
The shelter maker's spec sheet sets the size. One maker's 8-person in-ground unit calls for a hole 10 feet wide by 12 feet long. The same sheet wants room on site for the dirt and a 7-foot access width. Have the spec sheet ready for the estimate.
How long does a storm shelter dig take?
Fixr puts ground prep and excavation at one to three hours before installation. Oklahoma law also requires an OKIE811 locate request at least 48 hours ahead. The day of the call, weekends and legal holidays do not count. We set a date after seeing the site.
Can a storm shelter go in rocky ground?
It can, but rock slows the dig. One maker's install sheet says jackhammering that runs into a second day adds cost. The Arbuckle Mountains, with their limestone and dolomite, lie in Murray, Carter, Pontotoc and Johnston counties. We check the spot before we quote.
Will an in-ground storm shelter flood?
NerdWallet lists flood risk as the in-ground shelter's con. FEMA says to check the site with the local building official or floodplain manager. It wants the ground sloped away from the entrance and a sump pump inside. Ask the shelter maker about the pump. Anchoring keeps rising groundwater from pushing the unit up.
How do I register a storm shelter in Pontotoc County?
The City of Ada and Pontotoc County Emergency Management keep a list of storm shelters in the county. Rescue crews use it after a disaster, and it is not public. Once the shelter is in, register it on the City of Ada's Storm Shelter Registration page.
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Why Choose Rezz Built

Why Oklahoma Landowners Call Us

Based in Ada, Oklahoma

Working a 50-mile circle of South Central Oklahoma since 2023. Close-in towns like Stratford, Stonewall and Sulphur are a short run for the equipment, and bigger jobs pull the machines further.

Iron Sized for Big Jobs

A Cat D6 dozer, a 30,000-lb excavator and a tracked skid steer under one name. Acreage, ranch and commercial ground is what the equipment was bought for.

Stumps Out, Not Buried

We clear mechanically with the dozer and excavator, roots and all. The ground is left buildable and mowable instead of hiding stumps under a layer of mulch.

Free On-Site Estimates

We look at the property, talk through what it needs, and hand you a real number. The estimate costs nothing and the price comes from seeing the ground.

Google Reviews

5-Star Rated on Google by Oklahoma Landowners

Real reviews from real clearing, dirt and pond jobs on Google.

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Super group of guys to work with. They show up early and work late and go that extra mile for you. They do more than what is expected and that means a lot. It is hard to find guys like this nowadays. They have cleared about 130 acres for me plus worked on and repaired two ponds for me. You can’t go wrong hiring Rezz Built!!!

Paul Lunaa month ago · Google review

Rezz Built has done several jobs for us including land clearing, grading & demo. They always show up when they say, work hard & leave a clean site. These guys are honest and very hard workers!

Tina Gregorya month ago · Google review

Judd always does a great job! Shows up with the right equipment and makes sure the job is done right.

Guides & Resources

Storm Shelters Guides

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Get In Touch With Rezz Built

Cedar taking the pasture, a pad to build, an old house to take down, or a pond you have been thinking about for years? Call or send the form. We come look at the property with you, and the estimate is free and comes from seeing the ground.

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Tell us about your property and we'll get back to you fast.

Call (580) 344-7473