Paver Sealing & Polymeric Sand in Demarest, NJ
Re-sand and seal your pavers to lock out weeds, stains and wash-out for years.
Paver Sealing & Polymeric Sand in Demarest, NJ
If you own a home off Piermont Road, County Road, or up near the Demarest border with Cresskill, you already know what our freeze-thaw winters do to a paver patio. Snow gets plowed, salt gets tracked in, and by spring the sand between your pavers has washed out, weeds are coming up in the joints, and everything looks dull and gray. That's the point where most Demarest homeowners call us.
Gallo Bros is a family-owned North Jersey exterior cleaning company, and paver sealing is one of the services we take the most pride in. Demarest has a lot of established colonials and newer custom builds on wooded, sloping lots, which means drainage and runoff are real factors here. We don't just spray sealer and leave. We deep-clean the surface, replace the joints with polymeric sand so they lock and shed water, and then apply a sealer matched to your pavers—whether you want a natural matte or a wet look.
We're honest about what sealing can and can't do, and we'll tell you straight if your pavers aren't ready yet. No pressure, no filler—just a clear quote and clean work.
- Local crew that knows Demarest homes
- Soft-wash & low-pressure methods that protect your surfaces
- Licensed, insured & background-checked
- Upfront pricing — same-week scheduling

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Paver Sealing & Polymeric Sand near Demarest
Recent work in Demarest
Real jobs, real Demarest homes — straight from our crew's cameras.






What neighbors say
5.0 · 854+ Google reviews“I wanted power wash my backyard deck for a long time but they said it cannot be done due to the equipment was not accessible however Gallo Brothers had very long 400feet hose and did the power wash which was not done for many years. I am very happy they did a very good job specially Mark was very helpful to do front porch and walkway. It is speck clean this is exactly what I wanted to do. I do highly recommend Gallo Bothers meticulous job.”
Chong Cho
“Holiday Outdoor Lighting Gallo Brothers Experience I always wanted outdoor lighting - but, never felt comfortable with other roof lighting companies - people, creativity/passion, equipment safety, timing - ability to handle challenging roof layout …. and concerns regarding ability to deliver The Gallo Brothers checked all of the boxes: Incredibly professional Went above and beyond - the roof was a challenge - other companies wanted to do lights along gutter line only because the roof had too many steep peaks and Gallo Brothers created a custom lighting solution across the entire roof. They had complete confidence that they could deliver and they killed it.. The Gallo Brothers are bright, young and hungry …. Experience for me was totally stress free The Gallo Brothers offered Creative design options/solutions They have the appropriate equipment to perform work in a safe efficient manner The Gallo Brothers Team was not only friendly and kind but, highly skilled. They were focused and enjoyed doing their job. They were very careful with equipment and determining safest way to get around complex roof and lawn and landscape Efficiency and punctuality are hallmarks of Gallo Brothers service I just chose the bulb color ... and had them walk me through all of the options. The pricing was fair and reasonable compared to their competitors. The other competitors were more expensive and offering was a lower level product (example - boring gutter line lights vs entire roof lighting experience) The Gallo Brothers were very transparent throughout entire process They over delivered from the picture that they designed and I approved in the beginning The work and lighting product experience speaks for itself - family, neighbors and friends love it I was blown away when the lights came on the night that I was home with family. It was such an incredible experience. I didn’t want to leave home for family event that night. It brightened up the entire block and created many smiles My kids asked me why I didn’t do the home lighting many years ago …. I would strongly recommend the Gallo Brothers to anyone who wants to light up their home and neighborhood and who want a hungry team of skilled professionals - who love what they do - and will design and deliver a bright experience with no stress. *I would also recommend locking them in soon before their capacity is dedicated to my neighbors and friends who were very impressed with them”
Anthony Martucci
“Absolutely outstanding job by the Galo Brothers today power washing our house! Honestly the best power washing job we have ever had done. The house looks brand new again, every detail was handled with care, and the difference is unbelievable. They were professional, thorough, hardworking, and took real pride in their work. It’s rare these days to find a company that exceeds expectations, but they absolutely did. Highly, highly recommend the Galo Brothers to anyone looking for top notch service and incredible results!”
Bruce Bosland
Paver Sealing & Polymeric Sand in Demarest — FAQ
How often should I reseal my pavers in Demarest?
In our climate, most sealed pavers hold up about 3 to 5 years before they need a refresh. Bergen County's freeze-thaw cycles, road salt, and heavy summer sun all wear sealer down faster than in milder regions. We'll check yours and give you an honest timeline rather than talking you into work you don't need.
What's polymeric sand and why does it matter?
Polymeric sand fills the joints between your pavers and hardens when activated with water. It locks the pavers together, resists weeds, and helps water run off instead of pooling—which matters on Demarest's sloped, wooded lots. We remove the old washed-out sand first, then install fresh poly sand before sealing.
Can you seal pavers that already have weeds and moss?
Yes, but not on day one. We first clean and treat the surface, remove weeds and moss from the joints, and let everything dry. Sealing over dirty or damp pavers traps the problem underneath. Proper prep is most of the job—the sealing is the easy part.
Do you service just Demarest or the surrounding towns too?
We're a North Jersey company and regularly work Demarest, Cresskill, Closter, Haworth, and the surrounding Bergen County towns. If you're near the Demarest line, just ask—we almost certainly cover you.
Will sealing change the color of my pavers?
It can, depending on the sealer you choose. A natural or matte sealer keeps pavers looking close to dry. A 'wet look' sealer deepens and enriches the color. We'll show you the difference before we commit so you get the finish you actually want.
How much does paver sealing cost in NJ?
Most patios and driveways run about $1.50–$3.50 per square foot depending on condition and sealer. We clean, re-sand and seal — and quote it all up front, free.
What is polymeric sand and why does it matter?
Polymeric sand goes in the joints between pavers and hardens when wet. It locks the pavers in place and blocks weeds, ants and wash-out far better than regular sand.
How long does paver sealing last?
Usually 3–5 years before a re-seal, depending on traffic and sun. Sealing also brings back the color and makes the surface much easier to keep clean.
Do you clean the pavers first?
Always. We deep-clean, remove old failing sand, re-sand the joints with polymeric sand, then seal. Sealing dirty pavers just locks the dirt in — we never skip the prep.
North Jersey · 854+ five-star reviews
Pick your own time
Choose a slot that actually suits you and it's confirmed on the spot — no phone tag, no waiting on a callback.
- A real person comes out and prices the work in front of you
- Exact price before anything starts, in writing
- Free, and there's no obligation to book the job
Rather talk it through?
(973) 500-8155info@gallobrospw.com