Inside buildings, it's concrete. Condo and commercial repair work means coring and cutting slabs that can hold rebar, post-tension cables, and conduit. We scan first and mark safe cut zones, so the saw or core bit doesn't find them for you.
Ground Conditions in Miami
Miami is built on rock. Much of the city sits on the Miami Limestone, a porous rock that also holds the top of the Biscayne Aquifer. On the ridge, federal soil surveys put that limestone just 2 to 10 inches below the surface, pocked with small solution holes, with the water table sitting inside the rock 3 to 5 feet down. Toward the bay, the bottom of that aquifer turns salty, and the U.S. Geological Survey keeps a map of how far inland the salt water reaches.
Downtown, the soil maps don't even try: almost all of it is mapped as built-over ground, so no record tells you what's really under the pavement. With rock a few inches down, every trench in Miami gets cut or broken out, which makes digging in the wrong spot slow and expensive. Dry rock and sand are fine for radar. Wet rock, old fill, and salty water near the bay all shorten how deep it sees, and we tell you plainly where that happened on your site.
What’s Under the Streets in Miami
Miami's water and sewer belong to Miami-Dade Water and Sewer, which took over the city's system in 1975. Countywide that's about 8,700 miles of water main and 6,500 miles of sewer pipe and force main, plus more than 1,000 sewer pump stations. Under a 2014 federal consent decree, the county has to spend $1.6 billion fixing its sewer system, with the work aimed to finish by 2028, so new and rebuilt sewer pipe is going in all over the county. FPL runs the power, and gas comes from Peoples Gas or Florida City Gas.
Not every Miami property is on sewer, either. About 120,000 properties across Miami-Dade still use septic, including more than 300 homes around the Little River, and the county is moving them over one project at a time. Extending sewer to a single property runs an estimated $50,000 to $60,000. On an older lot that can mean an old tank, a drain field and a brand-new sewer line all in the same yard. The utilities mark what they own. Everything on your side of the meter, from the septic line to the sprinklers, is on you, and that's the part we find.
We work all over the city, including Downtown, Brickell, Edgewater, Wynwood, Allapattah, Little Havana, and Coconut Grove, plus nearby Coral Gables, Doral, Hialeah, and Miami Gardens. Scheduling depends on crew location and the size of the job, and we'll tell you straight what we can do.
