CONCRETE FLOOR INSTALLATION IN SUFFOLK COUNTY
Concrete Floor Installation in Suffolk County, Properly Graded, Properly Sealed, Finished to the Spec the Floor Actually Needs.
Concrete floor installation for garages, basements, commercial spaces, warehouses, and industrial facilities across Suffolk County and Nassau County. New pours, crack repair, resurfacing, and protective coatings. Own crews, no subcontractors.
4.6/5 Google Rating
· BBB A+ Since 2012
· Licensed in Suffolk & Nassau County
BBB A+ Accredited
Since 2012
Dan's Best of the Best
2025 Winner
Suffolk County Licensed
Contractor License
Nassau County Licensed
Contractor License
Fully Insured
General Liability + Workers Comp
WHAT CONCRETE FLOOR SERVICES ACTUALLY COVER
Cracking, Spalling, Dusting, Worn Out, Concrete Floor Work Is Not Just One Thing
Garage floors in Deer Park have taken years of oil and road salt abuse. Basement slabs in Smithtown have shifted and cracked. Commercial warehouse floors in Hauppauge have been ground down by forklifts and heavy foot traffic. The scope of what's needed looks completely different on each one.
Concrete floor services cover a wide range of work depending on what you're dealing with — crack and joint repair, surface grinding, resurfacing, protective coating application, moisture barrier installation, or full slab replacement. We look at what's actually happening before we recommend anything. Our own crews handle every part of the job with our own equipment — no subcontractors.
Preparation is where most floor jobs go wrong when the wrong crew handles it. Surface prep is not optional. If the existing concrete is contaminated with oil, if there's a failing old coating, or if the surface profile isn't correct, nothing you put on top will bond correctly. We grind, shot blast, or scarify depending on what the surface requires. That prep work is what makes the finished floor last.
WHAT WE WORK ON
Six Types of Concrete Floor Work We Handle Across Suffolk County
Garage Floors
The most common concrete floor job we handle across Suffolk County. Long Island's freeze-thaw cycle drives water into small surface cracks and expands them — homeowners in Bay Shore and Brentwood deal with this every spring. Road salt tracked in on tires attacks the surface chemistry and accelerates spalling. Resurfacing, epoxy coating, or full slab replacement depending on what the assessment shows.
Basement Slabs
Moisture coming up through the slab is a real problem in many parts of Suffolk County — especially in areas with higher water tables. Before any coating or resurfacing goes down, we check moisture levels. Skipping that step is why most DIY basement floor jobs fail within a year. We don't skip it. Moisture barrier installation, crack repair, and surface finishing all part of our basement floor scope.
Commercial & Industrial Floors
A warehouse floor in Central Islip handling pallet jacks and heavy loads needs a different approach than a residential garage. The concrete mix, the coating system, and the surface profile all matter. We've worked on floors in light industrial buildings, auto shops, retail spaces, and municipal facilities across Suffolk County and Nassau County. Each one evaluated on its own.
New Construction Slabs
Building an addition, a detached garage, or a new commercial space in Suffolk County? The floor slab needs to be poured, finished, and cured correctly from the start. We handle that — from forming and pouring to final finish and curing compound application. Getting it right the first time costs less than repairing a slab that was rushed or improperly prepped.
Floor Coatings & Sealers
Epoxy and protective coating application for garages, auto shops, commercial kitchens, and industrial spaces. Coating selection and application method matched to the floor use, traffic type, and moisture conditions of the specific space. Surface profile prepared correctly before coating — the most skipped step in the industry and the reason most coatings fail early.
Surface Grinding & Leveling
Surface grinding to level high spots, remove old coatings, or prepare the surface profile for a new coating system. Used when the slab is structurally sound but the surface is contaminated, worn, or too smooth for a bonded overlay to adhere correctly.
Why Moisture Testing Is Non-Negotiable Before Any Basement or Below-Grade Concrete Floor Work
Moisture coming up through a basement slab is a specific problem in many parts of Suffolk County — particularly in areas with higher water tables or clay-heavy soil that holds moisture close to the surface.
If you apply a coating or resurfacing product over a concrete slab that has active moisture vapor transmission, that product will delaminate. It doesn't matter how well the surface was mechanically prepared or how good the coating product is — moisture pressure from below breaks the bond.
We test moisture levels before any coating or resurfacing recommendation on below-grade applications. If moisture is present above acceptable levels for the specified product, we install a moisture mitigation barrier before the coating goes down. That's not an upgrade — it's what makes the job last more than a season.
Why Surface Preparation Determines Whether Your Floor Work Lasts
Most floor jobs fail because of what happens — or doesn't happen — before the product goes down. Surface prep is where the job is actually won.
If the concrete is contaminated with oil, the contamination must be cleaned and removed before any repair material or coating will bond correctly. Oil-contaminated concrete can't be bonded to — a coating applied over an oil-stained surface peels within a season.
If there's a failing old coating, it must be removed completely — not coated over. A new coating over a failing old coating fails at the rate of the weakest layer in the system.
If the surface profile isn't correct for the coating being applied, adhesion is compromised regardless of product quality. We grind, shot blast, or scarify depending on what the surface requires — creating the profile the manufacturer specifies for the coating being applied.
WHY FIORINI PAVING
The Concrete Floor Contractor Suffolk County Properties Trust
35+
Years on Long Island
Concrete floor work across Long Island since the late 1980s — garage slabs, basement floors, warehouse floors, and commercial spaces across every soil condition and moisture environment the island has.
2.2M
SQUARE FEET OF CONCRETE POURED ON LONG ISLAND
More than 2.2 million square feet of concrete poured across Long Island — parking lots, slabs, curbs, sidewalks, floors, retaining walls, and commercial concrete for properties of every size and type.
0
Properties Served AcrCoatings applied without moisture testingoss Long Island
We test moisture levels on every below-grade and basement floor before any coating or resurfacing recommendation. Zero exceptions. It's the step most other crews skip — and the reason those jobs fail.
Related Concrete Services
WHAT OUR CLIENTS SAY
4.6 out of 5 Google Reviews
Based on 10 Google reviews · Verified through Google Business Profile
Nick Russo
President, O'Keefe Court Condominium Board
2024
Fiorini Paving did an excellent job repaving the parking lot at our condo facility. As president of the board, I was involved in reviewing multiple proposals, and Fiorini impressed us with their professionalism, responsiveness, and attention to detail from start to finish. The quality of the work was top notch, and they followed up after completion to ensure everything was holding up well. We're very satisfied with the results and would highly recommend Fiorini Paving for any paving or asphalt work.
Verified Google Review
Valerie McDermott
Car Dealership, Long Island, NY
September 2021
Verified Google Review
We are a car dealership, it is a huge challenge to navigate a paving project with all the vehicles on site. Not for these guys. ABSOLUTELY A++. They were excellent at communicating exactly what needed to be done in order for the entire project to go smoothly. The parking lot looks amazing and our drain issues solved!
Matthew Vitiello
Long Island, NY
March 2021
The guys at Fiorini Paving really did a phenomenal job for us. Not only did the quality of work exceed our expectations but they were also very easy to work with throughout the whole process. I highly recommend them.
Verified Google Review
AE Ealy
Local Guide · Long Island, NY
2024
Verified Google Review
Great price. They did a very good job. The crew was very professional. Everyone was respectful. They quoted a price, gave a deadline date to complete the job and came through. Highly recommend them.
COMMON QUESTIONS
Concrete Floor Questions, Straight Answers
It depends on the extent of the damage and the condition of the base. Surface spalling limited to a small area and stable cracks can often be repaired with proper surface preparation and a bonded overlay. Widespread spalling across more than a third of the slab, deep structural cracks, or a floor that keeps cracking after repeated repair — those point toward full slab replacement. We assess the base and moisture conditions before recommending either.
Three reasons, usually. Moisture vapor coming up through the slab wasn't tested or addressed before application. The surface wasn't properly prepared — oil contamination, wrong surface profile, or a failing old coating under the new one. Or the product was applied in conditions outside its temperature and humidity specifications. All three are preparation failures — and all three are preventable.
A simple test: tape a sheet of plastic to the concrete and seal the edges. Leave it for 24 to 48 hours. If you see condensation on the underside when you remove it, the slab has active moisture vapor transmission. We perform more precise calcium chloride or RH tests before specifying a coating system for any below-grade application.
Resurfacing adds a bonded cementitious overlay to the existing concrete — restoring surface profile, filling pits and worn areas, and creating a fresh concrete surface. Coating applies an epoxy or polyurethane system over the prepared concrete for protection, chemical resistance, and appearance. Both require proper surface preparation — the difference is in what goes down and why.
Most residential garage slab pours are completed in one day. Larger commercial floors may take longer. Foot traffic is safe within 24 to 48 hours. Light vehicle traffic after 5 to 7 days. Heavy loads after 28 days of curing. Coating or resurfacing typically cannot be applied until the slab has cured for at least 28 days — often longer for below-grade applications with moisture.
In some cases — if the existing slab is still structurally sound and the added height doesn't create clearance problems at thresholds and doors. When the existing slab has cracked, settled, or has active moisture issues, removal and full repour on a properly prepared base is the right fix. We assess the existing slab first.
Yes — commercial and industrial floors are a significant part of our concrete floor scope. Warehouse floors in Central Islip handling pallet jacks, auto shop floors in Hauppauge, retail spaces, municipal facilities — each one gets evaluated individually because the concrete mix, coating system, and surface profile requirements are all different from a residential garage floor.
READY TO GET STARTED?
Get a Free Concrete Floor Estimate in Suffolk County
Call us directly or submit an estimate request and we'll get back to you within one business day. Garage floors, basement slabs, commercial and industrial floors — crack repair, resurfacing, protective coatings, and new pours across Suffolk County and Nassau County.
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