Table of Contents
- Before breaking anything, find out what the adhesive is; black mastic and old vinyl tile in pre-1987 buildings may contain asbestos.
- Tile dust contains respirable silica; use wet methods, a HEPA vacuum, eye protection and a properly fitted respirator.
- A rotary hammer with a flat chisel, held at a shallow angle, removes tile without gouging the slab.
- Diamond grinding with a dust shroud is the cleanest way to remove stubborn thinset or glue residue.
- Test slab moisture and flatness before new flooring; most failures trace to skipped prep.
Concrete is forgiving to build on and unforgiving to demolish. Tile set on it with thinset can be stubborn, and old tile set with black mastic can be a health hazard. Done well, removal leaves a flat, clean slab ready for new flooring. Done badly, it leaves gouges, dust in every room and, sometimes, a fine from a building manager.
This guide covers tools, technique, silica and asbestos safety, glue residue, slab repair and the building rules that apply across New York City, Long Island and nearby New Jersey. Costs are typical 2026 planning ranges as of October 2026, and a written, itemized quote governs real pricing.
1. Before You Touch the Tile: Know What You Have
Three questions come before tools.
What is the tile set in? Modern tile is usually set in thinset mortar, a cement-based adhesive that bonds hard. Older tile may be set in a thick mortar bed, in mastic, or in a mix. Mastic is a black or yellow adhesive that stays tacky and gums up blades.
How old is the building? In older buildings, floor tile, vinyl sheet, mastic and some underlayments can contain asbestos. A survey or sampling is typically required before disturbing suspect materials, with buildings from before 1987 commonly triggering this step. The EPA asbestos page explains the basics. Never promise yourself that a floor is clear without testing.
What does the building allow? Co-ops and condos often require approval for demolition, restrict hours to roughly 9 AM to 5 PM on weekdays and require floor protection in common areas. NYC Noise Code generally limits construction to weekdays around 7 AM to 6 PM. Ask your managing agent before renting a hammer.
Also confirm the slab is a plain slab. Some concrete floors contain post-tensioned cables, radiant heating tubes or electrical conduit. If you are unsure, do not use a heavy chipping hammer until you have checked drawings or had the slab scanned.
2. Tools That Work (and a Few That Do Not)
You do not need much. You need the right pieces and the right dust control.
| Tool | Best use | Notes |
|---|---|---|
| Rotary hammer (SDS) with flat chisel | Lifting tile on slabs | Run in hammer-only mode; keep the chisel low |
| Electric chipping hammer | Thick mortar beds, large areas | Heavy; use a shroud and vacuum |
| Long-handled floor scraper | Thin tile, mastic, vinyl | Fast on soft adhesives |
| Hand chisel and mallet | Edges, corners, trim | Controlled work near baseboards |
| Angle grinder with diamond cup wheel | Thinset, ridges, glue | Must connect to a HEPA vacuum shroud |
| Walk-behind floor grinder | Large areas | Rental or pro tool; best for flatness |
| HEPA vacuum | Dust capture | Never use a regular shop vacuum |
| Contractor bags and wheeled bins | Debris | Tile is heavy; fill bags halfway |
Skip the following: sledgehammers for floor tile (they crack slabs), dry grinding without a vacuum shroud, and hot-air guns on unknown adhesives (heat can release fumes and vapors).
3. Dust Control and PPE: Silica Is the Real Hazard
Breaking tile, mortar and concrete creates fine dust that contains respirable crystalline silica. Breathing it over time can cause serious lung disease. The federal standard (29 CFR 1926.1153) covers cutting, grinding and demolition work, and requires dust controls such as water or vacuum capture. OSHA's silica resource explains the requirements for employers; the same logic protects a DIY owner.
A sensible setup includes:
- Wet methods wherever possible: mist the surface before chiseling.
- Tools with shrouds connected to a HEPA vacuum.
- A properly fitted respirator rated for fine dust, plus eye and hearing protection.
- Plastic sheeting, tape and a negative-air fan or open window with a fan exhausting out, so dust does not travel into other rooms.
- Gloves, long sleeves, and boots with sturdy soles.
- No dry sweeping; use HEPA vacuuming and damp mopping.
Close return vents and seal door gaps. In an apartment building, keep the hall side sealed and clean any dust at the door. Tenants, neighbors and managing agents notice.
4. Step-by-Step: Removing the Tile
Follow this order to protect the slab and your lungs.
- Test and clear. Confirm adhesive testing is done if the building is old. Move furniture, cabinets and fixtures. Turn off the circuit for any wiring in the work area.
- Protect. Cover doors, vents and adjacent floors with sheeting. Set up the HEPA vacuum.
- Score grout lines at the start so you have a clean break around the area. Remove baseboards and thresholds.
- Break one tile with a hand chisel to expose the bond line. Learn how the tile fails: pops cleanly off thinset, or breaks into pieces that cling to mortar.
- Chisel low and shallow. Hold the flat chisel at a shallow angle, nearly parallel to the floor, and drive it under the tile edge. A steep angle gouges the slab.
- Work from the opened area outward. Take whole tiles in sequence rather than chasing tiny pieces.
- Bag debris often. Fill bags halfway; tile is heavy.
- Vacuum. HEPA vacuum the slab after each section, not at the end.
Mortar beds require a different approach. When tile is set in a one- or two-inch bed, a chipping hammer breaks the bed into chunks, and wire lath or reinforcing mesh beneath must be cut and lifted. Plan for much heavier debris. If you are also dealing with underlayment, our guide on glued-down underlayment removal explains how to avoid common mistakes.
5. Thinset, Mastic and Glue Residue
After the tile comes off, a layer of thinset or glue remains. How you remove it depends on what it is.
Thinset
Thinset is cement-based and hard. Scrape ridges with a bladed scraper or chisel, then grind the remainder with a diamond cup wheel connected to a dust shroud. Move in overlapping passes. Check flatness with a straightedge as you go.
Mastic and cutback adhesive
Black cutback adhesive is common under old vinyl or asphalt tile. It may contain asbestos. Do not sand, grind, or dry-scrape suspect adhesive until testing confirms it is safe. If asbestos is present, certified abatement is required. NYC DEP and DOB oversee asbestos work, and the NYC Department of Environmental Protection is the agency to ask about asbestos rules.
Non-asbestos mastic
Scrapers, heat and chemical strippers can all work, but in a closed apartment strong chemicals are a poor choice. Grinding with a shroud and HEPA vacuum is usually faster and cleaner. Make sure the flooring you plan to install can bond to what remains; some adhesives need a clean, bare slab.
Paint, sealer and curing compounds
Previous coatings can block bonding. A light grind opens the surface so new thinset or adhesive can grip.
6. Repairing and Prepping the Slab
After removal, the slab tells you what it has been through. Typical issues include:
- Gouges and holes: fill with a patching compound suited to concrete.
- Cracks: assess whether they are cosmetic or structural. Active cracks need crack-isolation membranes or engineering review.
- High and low spots: grind high spots and fill low spots with self-leveling underlayment. Subfloor prep and leveling typically run about $2 to $8 per square foot as a 2026 planning range.
- Moisture: slabs on grade and basement floors can transmit vapor. Flooring manufacturers set limits, often based on relative humidity readings from in-slab probes or calcium chloride tests. Follow the manufacturer's specification.
- Contamination: oil, paint or old adhesive residue should be removed before priming.
Prep is where the next floor succeeds or fails. A thin, perfect-looking tile install over a poorly prepped slab will crack or debond within a season. For flooring choices after removal, see our guide to tile for kitchen floors in NYC apartments, and for a deeper dive on the cost of putting tile back, our tile installation cost guide.
7. When to Call a Pro for This Job
Concrete tile removal is not technically complicated, but it punishes small mistakes. Hit the slab at the wrong angle and you gouge it. Skip dust control and you spread silica through an apartment. Chisel the wrong adhesive and you may disturb asbestos. Do it in a co-op without telling the board and you may be stopped mid-job.
A licensed pro changes the equation. A professional crew arrives with shrouded tools, HEPA vacuums, containment and protection for halls and elevators. They know when to stop and test. They know how to read a slab, spot post-tension markers or radiant tubes, and avoid them. They carry insurance, which most buildings require before any demolition, and they handle disposal in a way that complies with building rules.
N.Y. Renovation Services is a licensed and insured, in-house design-and-build company serving all five boroughs, Long Island and nearby New Jersey. We handle demolition, slab prep, new tile or flooring and the permit and board paperwork under one contract. Our pricing is itemized: removal, disposal, grinding, patching and leveling appear as separate lines, so there are no hidden fees. We also donate 5% of total project cost to a nonprofit of the client's choice.
Residential remodeling in NYC requires a Home Improvement Contractor license; the DCWP checklist explains how to verify. For a sense of the numbers, our tile removal cost guide shows typical 2026 planning ranges of $4 to $12 per square foot. If you would rather skip the dust and the dumpster, request a free estimate.
8. Neighborhoods and ZIP Codes We Serve
Concrete floors show up in very different settings, and local conditions change the plan.
- Chinatown, Manhattan (10013, 10002): mixed-use walk-ups and older tenement buildings. Expect narrow stairs, shared walls and layers of old flooring. See our Chinatown kitchen and bath remodels.
- Bushwick, Brooklyn (11206, 11221, 11237): brick row houses, converted lofts and two- to four-family buildings, often with multiple layers of old flooring and some slab-on-grade basements.
- Long Island City, Queens (11101, 11109): high-rise condos, converted lofts and waterfront areas where flood considerations and board rules apply. See our Long Island City remodel page.
- Eltingville, Staten Island (10312): detached homes and attached townhouses, often with concrete basements and garage slabs.
- Garden City, Nassau County (11530): Village of Garden City colonials with strict village permits.
- Fair Lawn, Bergen County, NJ (07410): capes, ranches and garden apartments permitted through the municipal construction office.
A high-rise LIC condo means slab type, post-tension questions and strict board approval. A Staten Island basement means moisture testing and grade. A Chinatown walk-up means carrying debris down several flights.
9. Permits, Boards and Rules
Many tile-removal jobs are cosmetic, but a permit may still apply if you change plumbing or structure. The DOB guide to obtaining a permit explains how NYC filings work, and our permit overview summarizes common cases. Co-ops and condos typically require an alteration agreement and insurance certificates; industry reports indicate DOB reinstated a board-approval attestation in DOB NOW in January 2026, so confirm with DOB and your managing agent.
In Garden City and other Nassau villages, the village building department can have its own rules about demolition, dumpsters and work hours. In New Jersey, the local construction office issues permits under the Uniform Construction Code. Always confirm with the municipality.
10. Timeline, Cost and What Comes Next
For a bathroom or kitchen floor, plan on:
- Pre-job checks and adhesive testing: one to several days, depending on lab turnaround.
- Setup and protection: half a day.
- Tile removal: one to two days.
- Thinset or glue grinding: half a day to a day.
- Patching, leveling and cure: one to three days.
Typical 2026 planning ranges: tile removal $4 to $12 per square foot, subfloor prep $2 to $8, and new tile $20 to $45 per square foot on floors. A written itemized quote governs. See the NYC renovation cost guide and bathroom renovation budget planner for how removal fits into the larger budget, and our tile installation guide for what follows.
If cabinets are involved, read how to protect them in our guide on removing subflooring without axing your cabinets.
11. Next Steps: Get Your Free Estimate
If you have read this far, you probably have a floor to deal with. Send us the room size, a few photos of the tile and any exposed edges, and the building type. If you live in a co-op or condo, include the alteration agreement or house rules. We will visit, test or arrange testing where needed, and give you a written, itemized quote for removal, disposal, slab prep and any new flooring.
If removal is part of a bigger plan, such as a new bathroom, our bathroom remodeling page shows how design, permits and construction fit together. If it is just the floor, we will price just the floor. Start with our quote form and say what you are planning to install afterward, because the right finish prep depends on it: a floating plank floor tolerates different flatness than large-format tile, and a glued-down vinyl needs a different surface than thinset does. We would rather match the prep to the product than grind more than necessary or leave you with a slab that fails inspection by the next trade.
We also keep the building in mind throughout. Debris leaves on the building's schedule, hallways stay protected, dust stays in the work zone, and anything we discover under the tile is photographed and explained before we proceed. That level of documentation is part of what you pay a licensed crew for, and it is what keeps managing agents and neighbors from becoming obstacles to your renovation.
Safety Note: All work follows OSHA 30 safety and EPA Lead-Safe practices for pre-1978 homes. Check local permit requirements before starting.
James - Lead Renovation Editor. With over 20 years in renovation and construction, James writes and edits our guides. More about James