Concrete Elevator Shaft & Stairwell Cutouts
Modernizing multi-story commercial buildings demands serious structural modifications. Whether retrofitting a new elevator bank, adding an emergency stairwell, or creating large mechanical chases, brute-force demolition poses a severe threat to a building's load-bearing integrity. At Concrete Cutting Miami, we deploy high-torque track saws, slab saws, and hydraulic chainsaws to slice perfect, vibration-free openings through heavy core walls and elevated slabs, ensuring a flawless handover to your steel framing and installation crews.
Wall Cut Depth
Up to 24"Track-Mounted Saws
Corner Plunge
Zero Over-cutPerfect 90° Angles
Slab Penetrations
Unlimited SizeElevated Floors
Safety Profile
Fume-FreeRemote Hydraulic Power
Commercial RetrofitsElevator Core Walls
Creating new door openings in heavily reinforced elevator core walls requires absolute dimensional accuracy. We utilize track-mounted precision wall saws bolted directly to the concrete. This system seamlessly severs thick poured concrete and #8 rebar precisely to the elevator manufacturer's specifications, leaving a perfectly plumb edge ready for immediate rail alignment.
Floor PenetrationsStairwell Access
Connecting floors via new emergency staircases requires removing massive sections of an elevated slab. Utilizing heavy-duty slab sawing equipment, we score and sever the concrete into manageable blocks. We ensure the structural load below is never compromised during the cutting or removal phases.
Rigging & RemovalSafe Extraction
Extracting a cut slab for a stairwell is dangerous work. We never simply let the concrete drop. We core drill pilot holes into the cut sections, string heavy-duty rigging equipment through the concrete slug, and use material lifts or gantry cranes to safely lower multi-ton blocks to the ground for haul-off and demolition.
Mechanical RoutingDuct & Pipe Chases
In addition to stairwells and elevators, we routinely cut floor-to-floor penetrations for high-rise mechanical chases. Whether you need a massive rectangular opening for a new HVAC supply trunk or multiple circular penetrations for vertical plumbing runs, we deliver the exact rough openings your MEP contractors require.
Structural Preservation
Jackhammers destroy the integrity of core walls, causing micro-fractures that weaken the building's load-bearing capacity. Our diamond cutting tools operate with zero impact and zero vibration, isolating the cut and preserving the structural strength of the surrounding concrete.
Zero Indoor Emissions
Cutting deep inside elevator shafts or enclosed stairwells makes standard gas-powered saws a deadly carbon monoxide hazard. We power our cutting heads using a remote Merit hydraulic power pack. The gas engine stays safely outdoors, while emissions-free hydraulic fluid drives relentless torque indoors.
Perfect Corner Plunging
Standard circular wall saws create "over-cuts" in the corners of doors and shafts, requiring structural patching and risking adjacent reinforcement. We eliminate this by utilizing ICS hydraulic chainsaws to plunge cut perfectly square, 90-degree corners, ensuring your steel lintels fit flawlessly.
Frequently Asked Questions
How do you safely remove the concrete slab when cutting stairwells?
Safety is critical when dealing with elevated slabs. Before our final perimeter cuts are completed, we use specialized core drilling equipment to cut lifting holes into the concrete block. We then secure the slab to a gantry crane or heavy-duty material lift. Once severed, it is safely lowered to the floor below.
Can you cut through thick, heavily reinforced elevator core walls?
Yes. Elevator core walls in Miami high-rises are typically packed with heavy #8 or #10 rebar. Our track-mounted wall saws are specifically engineered to slice cleanly through steel reinforcement and up to 24 inches of solid poured concrete without slowing down.
Do I need to worry about exhaust fumes in an enclosed elevator shaft?
Not with our equipment. We specialize in indoor cutting using remote hydraulic systems. The combustion engine (our Merit power pack) remains outside or in a heavily ventilated area, pumping hydraulic fluid to our saw heads up to 100 feet away. This guarantees zero carbon monoxide emissions inside your building.
What is an "over-cut" and why does it matter for elevator doors?
Because wall saw blades are circular, the blade must cut past the corner intersection to completely sever the concrete on the back side of the wall. This "over-cut" damages the surrounding structure. We prevent this by stopping our circular blades short and finishing the corners with a diamond chainsaw, leaving a perfectly square opening for your new elevator frame.
Do you handle the steel framing or lintel installation?
We are specialized concrete cutting and demolition contractors. Our expertise is the precise severing and safe extraction of the concrete structure. We do not install steel beams or perform masonry work. However, we work seamlessly alongside your general contractors who will install the structural supports immediately following our cuts.
Recent Structural Penetrations
