Brooklyn · NYC · Nassau · Long Island
Epoxy flooring & polished concrete in Brooklyn, NYC & Nassau
Gemini Floor Services installs epoxy flooring and polished concrete for Brooklyn apartments, garages, basements, and Long Island commercial slabs. Professional resin floor overlays — flake, quartz, metallic — or diamond grind-and-densify polish matched to the concrete. Family-owned — not a franchise — licensed, insured, 5-year workmanship warranty. Brooklyn: 229 Sumter St. Call (718) 690-3435 or Nassau (516) 209-6998.
What we do (epoxy + polished concrete)
- Epoxy floor coatings — resin + hardener systems that bond to prepared concrete; residential, commercial & industrial; thickness from thin film up to thicker overlays/mortar. Also called concrete overlays / micro toppings.
- Decorative systems — color, flake/chip, quartz broadcast, metallic powders, terrazzo-style aggregate, logos/markings, stampable overlays.
- Performance systems — self-leveling / epoxy mortar for worn or heavy-duty slabs; slip-resistant textures; ESD / anti-static where needed.
- System stack (pro) — primer (moisture barrier / bond), epoxy build coats, clear urethane topcoat for durability & UV.
- Polished concrete — diamond grind + densify/harden multi-step process; matte to high-gloss classes; aggregate exposure grades (cream → large); stains/dyes & decorative cuts. Mechanical polish vs faster grind-and-seal (topical sealer; more reseal maintenance). Deep polish education: concrete polishing; commercial benefits: polished concrete floors.
Brief chooser: Worn, cracked, or chemical-heavy slabs often favor epoxy overlays; sound slabs wanting a permanent, low-build look often favor mechanical polish. Side-by-side education: polished concrete vs epoxy flooring. No cleaning services on this page.
How epoxy installation works
- Free consultation & estimate — Use case (garage, basement, shop, warehouse), system type (flake vs metallic vs mortar/self-level), slip needs, downtime. Start Instant Preliminary Estimate, then free on-site for a firm quote.
- Slab check — Almost any concrete can take epoxy if properly prepared; heavily cracked/unstable slabs may not qualify. Moisture and bond conditions drive primer choice.
- Prep (critical) — Grind to remove residue/coatings; clean dust and stains (prep is often the most time-consuming step).
- Primer — Seals concrete; moisture barrier; protects bond from bubbling/buckling.
- Epoxy coat(s) — Build coats; optional flake/quartz/metallic broadcast; mortar or self-level where specified (self-level poured/troweled, spiked rollers).
- Topcoat — Clear urethane for durability & UV.
- Cure & walkthrough — Traffic timing depends on product/system — confirmed on estimate.
Polished concrete process (support)
- Estimate — Existing slab condition, desired gloss class, aggregate grade, stain/dye, mechanical vs grind-and-seal.
- Prep — Decontaminate; epoxy-fill joints/cracks/pits as needed; remove old coatings by grind.
- Grind & polish — Dry diamond method preferred (dust captured to machine); progressive grits to target sheen (Class 1 flat → Class 4 high gloss).
- Densify — Penetrating densifier hardens surface, reduces dusting, helps seal against moisture/stains.
- Optional color / cuts / topical — Stains/dyes, decorative saw cuts, optional stain guard or sealer. New concrete: do not polish/seal until fully cured (often 30–60 days) + moisture meter check.
- Details & photos — See concrete polishing and polished concrete floors rather than duplicating the full education article.
Timeline
Job-specific factors — prep, system layers or grit classes, square footage, and cure windows — change the schedule and are confirmed on estimate. We do not invent generic day counts.
| Scope | Guidance |
|---|---|
| Epoxy | Multi-layer system (primer / epoxy / topcoat); epoxy can take several days vs simpler polish — job-specific; confirm on estimate |
| Mechanical polish | Multi-step grind → densify → finer grits; schedule follows square footage, patching, grit class |
| Grind-and-seal | Faster / less expensive than full mechanical; needs periodic reseal |
Where epoxy & polish are used
- Garages — Most common residential epoxy use; protects from liquids, salts, automotive fluids. Garage options overview: garage flooring (moisture caveat for coatings).
- Basements — On the epoxy / self-level use lists; slab moisture still drives prep/primer.
- Commercial / industrial — Warehouses, retail, kitchens, labs, showrooms, offices; mortar/self-level for heavy loads/chemicals. Polish + polished concrete floors: high-traffic commercial durability, light reflectance, low upkeep.
Epoxy vs polished concrete (quick chooser)
| Epoxy coating / overlay | Polished concrete | |
|---|---|---|
| What it is | Resin system bonded over prepared slab | Existing concrete ground, densified, polished |
| Best when | Worn/pitted slabs; chemical/impact needs; decorative flake/metallic; garage fluids | Sound slab; permanent low-build look; commercial/industrial aesthetics |
| Design range | Very high (colors, flakes, quartz, metallic, stamps, logos) | Stain/dye, aggregate grade, gloss class, cuts |
| Maintenance | Needs ongoing care/reseal depending on system | Mechanical polish: low maintenance; grind-and-seal needs reseal |
More detail: polished concrete vs epoxy · concrete polishing · polished concrete floors.
Apartments, co-ops & buildings
- Licensed & insured; can supply insurance paperwork buildings ask for.
- Plan elevator bookings, work hours, odor/ventilation windows for resin systems, and hallway protection up front.
- Brooklyn HQ: 229 Sumter St — useful for NYC access coordination.
Warranty
5-year workmanship warranty. Covers our installation/polish workmanship as stated on the job.
Product / system performance — depends on epoxy or densifier/sealer manufacturer terms — ask what’s in writing on the estimate.
Not covered as blanket promises: flooding, abuse, chemical misuse, later modifications, or skipping required prep/moisture mitigation.
Who this is for
- Homes & brownstones — garage epoxy, basement overlays, select interior polished or coated slabs.
- Apartments & co-ops — when building rules allow resin or grind work; paperwork and scheduling planned up front.
- Commercial — shops, warehouses, showrooms, food-service back-of-house, offices (Gemini works residences and businesses of all sizes).
What drives price (no published $/sq ft)
The live Instant Preliminary Estimate is a preliminary guide — final price after free on-site measure. We do not publish invented $/sq ft rates.
What drives price:
- Epoxy system type (standard coat vs flake/metallic vs quartz vs self-level / mortar)
- Polished path (mechanical multi-grit vs grind-and-seal) and gloss / aggregate grade
- Square footage, layout, and number of rooms/zones
- Slab condition: cracks, coatings removal, leveling, moisture mitigation
- Primer / densifier / topcoat / optional stain-guard selections
- Logos, decorative cuts, multi-color designs
- Access, downtime windows, and cure constraints (esp. occupied commercial)
Use the estimate form for a ballpark conversation, then call for on-site.
Gemini Floor Services
Owner Dyal Ramnarine
Brooklyn HQ: 229 Sumter St, Brooklyn NY 11233 · (718) 690-3435
Nassau: 220 N Columbus Ave, Freeport NY 11520 · (516) 209-6998
LI: (631) 739-8353 · info@geminifloors.com
Frequently asked questions
What’s the difference between epoxy flooring and polished concrete?
Epoxy is a resin coating system built over a prepared concrete slab — primer, epoxy coats, and usually a clear topcoat, with optional flake, quartz, or metallic designs. Polished concrete is the existing slab itself, diamond-ground and densified to a chosen gloss — no thick coating layer. Worn or chemical-heavy floors often lean epoxy; sound slabs wanting a permanent low-build look often lean polish. See polished concrete vs epoxy flooring and concrete polishing.
Can you epoxy a garage or basement in Brooklyn or on Long Island?
Yes — garages are the most common residential epoxy use (fluids, salts, liquids) and basements are on the epoxy / self-level use lists. Moisture in the slab still has to be checked; high moisture can block coatings (garage options page). We’ll confirm prep and primer on-site. Call Brooklyn (718) 690-3435 or Nassau (516) 209-6998.
Do you do flake, metallic, and commercial epoxy systems?
Yes. Systems include decorative flake and glitter, epoxy quartz, metallic powders, self-leveling and epoxy mortar for heavy-duty / industrial slabs, stampable overlays, and ESD/anti-static where static is a hazard. Commercial and industrial spaces are in scope alongside homes.
Is polished concrete only for warehouses — or homes too?
Once mostly commercial/industrial, polished concrete is now also residential when the slab qualifies. Mechanical diamond polish with densifier is the durable path; grind-and-seal is faster/cheaper but needs periodic reseal. Commercial benefit write-up: polished concrete floors. Full process: concrete polishing.
How long does epoxy or polished concrete take — and what’s the price per square foot?
Schedule depends on prep, system layers or grit classes, square footage, and cure windows — epoxy can be a multi-day install versus simpler polish paths. We do not publish $/sq ft rates on this page. Use Instant Preliminary Estimate for a preliminary guide, then free on-site measure for a firm quote.
Are you licensed and insured for co-ops and commercial jobs?
Yes. We’re family-owned — not a franchise — licensed and insured, with 30+ years and a 5-year workmanship warranty on our work as stated on the job. We can provide insurance paperwork buildings and landlords ask for. Brooklyn: 229 Sumter St · (718) 690-3435. Freeport: 220 N Columbus · (516) 209-6998. LI: (631) 739-8353.