Grout is porous — it drinks in grease, soap scum, and mop water until scrubbing does nothing. Our high-pressure steam extraction pulls the buildup out and makes grout lines look new again.
Here's why your grout looks dirty no matter how hard you scrub: grout is cement, and cement is porous. Every mopping pushes a little dirty water into those pores; every cooking session adds airborne grease; every shower adds soap scum and body oils. The buildup lives inside the grout, below where a brush can reach — which is why hands-and-knees scrubbing exhausts you and changes almost nothing. Meanwhile the tile itself grows a film of detergent residue that dulls the finish and grabs new dirt faster.
NextGen's process works where the problem actually is. We apply a professional alkaline pre-treatment that penetrates the grout pores and dissolves years of embedded grease and soil, agitate every grout line, then blast it all out with heated high-pressure extraction — water jets and vacuum recovery contained in the same tool, so soil leaves your house through the hose instead of getting spread around by a mop. The color that comes back to grout lines routinely shocks homeowners who assumed their grout was just 'dark now.'
We clean ceramic and porcelain tile floors, kitchen backsplashes, bathroom floors and walls, shower enclosures and surrounds, entryways and mudrooms, commercial restrooms and kitchens — plus natural stone like travertine, slate, and honed marble with stone-safe chemistry. After cleaning, we can seal your grout to lock out the next five years of buildup.
Long Island homes are hard on tile. Beach sand scratches and dulls kitchen floors; winter brings salt slush through every entryway; humid summers feed mildew in bathroom grout; and hard water throughout Nassau and Suffolk deposits minerals on shower tile that ordinary cleaners smear around. The result is the tile aging cycle every homeowner knows: floors that never look quite clean, grout lines that migrate from white to beige to gray to nearly black, and a bathroom that reads 'old' regardless of how recently it was renovated.
Deep cleaning resets that cycle for a small fraction of what people spend avoiding it. Homeowners routinely price regrouting or full retiling — thousands of dollars and days of demolition dust — to fix what is, in most cases, embedded soil that professional extraction removes in an afternoon. And sealing afterward changes the maintenance math going forward: sealed grout repels spills and mop water instead of absorbing them, so routine cleaning actually works and the restored color lasts for years instead of months.
We identify your tile and grout type — ceramic, porcelain, or natural stone — test a small area, and confirm the process and firm price.
Floors are swept and vacuumed thoroughly so loose grit doesn't get ground in during cleaning.
A professional-grade solution (stone-safe where needed) is applied and given dwell time to penetrate grout pores and dissolve embedded grease and soil.
Every grout line is agitated with rotary brushes to break the bond between buildup and grout — the manual step that machine-only services skip.
Our spinner tool jets heated water into tile and grout at high pressure while simultaneously vacuuming everything away — contained, splash-free, and dramatically effective.
Once clean and dry, penetrating sealer can be applied to every grout line, protecting your results and making future mopping actually work.
That's years of grease, soil, and mop water living inside the grout pores. Pre-treatment dissolves it and pressure extraction removes it — the original color is usually still under there, and seeing it come back is the best part of this job.
Cooking releases airborne grease that settles onto floor tile and dulls it into stickiness. Our alkaline chemistry cuts it completely, restoring the tile's actual finish and shine.
Long Island's hard water plus daily soap creates the cloudy buildup that bathroom sprays smear around. We remove it with the correct chemistry and pressure, from floor to ceiling if needed.
Humidity feeds mildew in grout lines and caulk. We deep clean and treat the affected grout, and sealing afterward denies mildew the porous, damp home it needs.
Floors and bathrooms that look renovated without renovating. Grout lines return to their real color, tile gets its finish and shine back, kitchens lose the grease film, and showers lose the haze — a whole-room transformation that photographs like new construction. The health angle is real too: extracting the soil, mildew, and bacteria that live in grout is a genuine hygiene upgrade for the two rooms where your family cooks and bathes.
Add grout sealing and you keep it: sealed grout resists staining, wipes clean with normal mopping, and holds its color for years. Every job is quoted firm upfront, performed by trained technicians, and backed by our 100% satisfaction guarantee — and most homes are done in two to four hours.
Tile and grout cleaning on Long Island typically runs $0.75–$1.50 per square foot depending on soil level, grout condition, and tile type, with natural stone at the higher end. Grout sealing adds roughly $0.50–$1.00 per square foot. A typical kitchen floor lands around $150–$300; a full bathroom around $125–$250; whole-home tile is quoted with multi-room pricing that brings the rate down.
As always: firm quote before we start, no add-ons invented at the door. Call (631) 490-4703 with your approximate square footage and we'll give you a real number in minutes — new customers take 10% off with code NEW10.
From Patchogue kitchens to Nassau master baths, NextGen's tile crews restore tile and grout across the entire Island — homes, restaurants, medical offices, and commercial restrooms alike.
Don’t see your town? We cover all of Nassau & Suffolk County — call (631) 490-4703 and we’ll be there, often the same day. Browse every community on our Service Areas page.
The shortcut version of this service is everywhere: a mop with stronger detergent, or a pressure tool run over the floor with no pre-treatment and no agitation. It brightens tile a little, leaves the grout pores full, and the gray comes back within weeks — which conveniently sells the next visit. The other extreme is the contractor who declares your grout hopeless and quotes a regrout, at ten times the price of cleaning it properly.
NextGen does the full process every time: correct chemistry with real dwell time, hand agitation of every grout line, heated pressure extraction that physically removes the buildup, and honest guidance about the rare cases where grout genuinely is beyond cleaning. Stone-safe methods for natural stone, sealing to protect the results, firm pricing, guaranteed work. It costs a little more than the mop-with-detergent guys and delivers a result they can't — that's the trade, stated plainly.
Same-day appointments available across Nassau & Suffolk County — and new customers save 10% with code NEW10.