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Top-Rated Excavation pros in Key Biscayne - Updated Nov 2026

Avatar for Casper Concrete LLC
Casper Concrete LLC
4.9(
16
)
Excavation - Major Grading or ReslopingExcavation - Major Grading or Resloping - For BusinessLandscape - Minor Grading or Resloping

Serving Key Biscayne, FL and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

"This was a hard removal. It was a cement surface over my concrete pool deck. It had to be removed with an industrial size grinder that looked like a big floor polisher. The work was dirty and dusty but at the end of the day and throughout the job, it was being continuously cleaned and dry vacuumed. Every evening (it took 5 days) the completed areas had been cleaned and left neatly. They moved my furniture, my plants, everything and then returned it. Hire them. They are already hired for another project. Highly recommend without hesitation."
Concrete
Concrete
Concrete
Concrete
Concrete

+32

Response time2 hrs
Response rate100%
2 neighbors recently requested a quote
Avatar for Superior Demo & Junk Removal LLC
Superior Demo & Junk Removal LLC
4.7(
7
)
Building Site - Preparation and ClearingBuilding Site - Preparation and Clearing - For Business

Serving Key Biscayne, FL and surrounding areas

Approved

Free estimates

Emergency services offered

Small jobs welcome

"I'll start with the positive points: Anthony pulled the permit as promised, even taking the county-required encroachment form to the correct location at the Broward County Courthouse. He started the job when promised, and at my request saved the sod that was dug up so I could move it to the back yard. He held to the contract, charging exactly the amount in it, no more, no less. However, the job, which Anthony initially told me would take a maximum of 2 weeks, took a month to the day to complete. Anthony wanted to start the job 2 days after a major flooding event in my city, during which my entire property had been under water for about 24 hours. I expressed concern about this, but Anthony insisted it would not be a problem. He then came out and began tearing out my old driveway. He worked approximately half the day before cutting out saying that his equipment (bobcat) couldn't get any traction in the still wet earth. The final job looks anything but professional. It has 3 or 4 different textures applied to the concrete and a pronounced change of height in the slab where the first load of concrete ended and the second began. The edges are not straight. Rather than pouring the sidewalk separately like every other contractor who did this type of work in my neighborhood, he poured the sidewalk at the same time and simply cut it out with a concrete saw. He did not remove whole sections of the sidewalk, but cut out the old sidewalk at the edges of the driveway. There are footprints all over the driveway and sidewalk where he walked on them before the concrete was set. He managed to splash concrete all over my garage door in the process. Finally, he did not manage to do the one thing that I was insistent on from the beginning: my finished driveway pools water at the end near the street. When I asked him about all these deficiencies, his answer was, "No job is perfect"."
Tile Removal
Tile Removal
Tile Removal
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Excavating FAQs, answered by experts

How deep your septic system needs to be into the ground depends on several factors. In extremely cold environments, the tank needs to rest below the maximum frost line, which can be up to six or eight feet deep. The standard burying depth for most systems is between a few inches and four feet below ground level. Depth can also depend on the slope of the landscaping and other property variables. 

There is no standard depth for burying a septic tank; they are typically buried anywhere from 4 inches to 4 feet underground. The final depth depends on several factors, including the depth of your main sewer line, the height of the bedrock, soil type, local regulations, and the property's landscape. If you plan to grow grass or plants over the tank, a depth of at least 4 to 6 inches is recommended. Deeper tanks can be more difficult to locate, but a septic professional can help find it for you.

Trenchers can dig holes as narrow as 4 inches or as wide as 4 feet. Check the specifications of the trencher you rent or buy to determine how wide it will cut into the landscape. Better yet, let the excavation company know how wide you’d like the trench to be, and they can help you choose the right trencher for the job (or do it for you).

The cost to repair a crawl space runs between $1,500 and $15,000, depending on the extent of the damage. Major flooding or water repairs can cost up to $10,000 for removal and repairs. If you simply need to clean your crawl space, expect to pay between $2,000 and $6,000 for a major cleanout. Replacing a crawl space beam due to rot or damage can cost between $1,500 and $5,000, while removing and replacing damaged insulation costs between $1,000 and $4,000.

Call 811 to locate and mark the gas lines at least three days before digging. In many areas, you can dig within 18 inches of the lines, though in some locations, the distance may be further. Check local regulations, as you may need a utility company representative onsite when digging. Document your calls to 811 and precautions taken to avoid gas lines. A homeowner can be held liable for hitting a gas line in some cases, but contacting the proper authorities and following all guidelines can offer protection.

The Key Biscayne, FL homeowners’ guide to excavation services

From average costs to expert advice, get all the answers you need to get your job done.