Paver Sealing & Polymeric Sand in Denville, NJ
Re-sand and seal your pavers to lock out weeds, stains and wash-out for years.
Paver Sealing & Polymeric Sand in Denville, NJ
If your paver patio or walkway in Denville is fading, sprouting weeds between the joints, or shifting after a few winters, sealing is what keeps it looking sharp and holding together. We're Gallo Bros, a family-owned exterior cleaning crew out of North Jersey, and paver sealing is one of the jobs we take the most pride in getting right.
Denville sits in a part of Morris County where a lot of homes have real outdoor living space — colonials and split-levels off the wooded stretches near Indian Lake, plus newer builds with big paver driveways and back patios. The Rockaway River running through town and our tree-heavy lots mean shade, moisture, and leaf debris, which is exactly what feeds moss and joint weeds. That's why we don't just spray a coat of sealer and leave. We clean the surface, replace failed joint sand with polymeric sand that locks in and resists washout, then apply the right sealer for your paver type.
NJ weather is the real test. Freeze-thaw cycles from December through March pop joints and let water under the pavers. A proper re-sand and seal helps your hardscape survive that. We'll tell you straight if you need it or if you're fine another season.
- Local crew that knows Denville 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 Denville
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Real jobs, real Denville homes — straight from our crew's cameras.






What neighbors say
5.0 · 854+ Google reviews“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
“Gallo Bros powerwashing team headed up by Joe, did a great job on our exposed, lakefront home. They went above and beyond to remove dirt and mildew from our house siding, soffits and multiple bluestone patios and walkways, as well as our dock and wood furniture. They also took great care to avoid or work around multiple bird nests which had recently hatched babies pre fledge. I will definitely call them in the future!”
Cathy Marshall
“We hired Gallo Bros Power Washing to power wash, re-sand and seal our 20 year old paver patio and front walk. They also performed a few repairs and reset a few areas that needed attention. We had never had this done professionally before. From the beginning estimating phase to the final coat of sealer, we were very happy with the services provided, the price and the final result, which they also warrantee for 1 year. I highly recommend Gallo Bros. Power Washing and will use them for other services in the future.”
Andrew O
Paver Sealing & Polymeric Sand in Denville — FAQ
How often should pavers be sealed in Denville's climate?
Most paver surfaces here do well with sealing every 3 to 5 years, depending on sun exposure, traffic, and how much tree cover and moisture they get. Shaded, damp areas near the Rockaway River or wooded lots may need attention a bit sooner because of moss and weed growth.
What is polymeric sand and why does it matter?
Polymeric sand is a joint sand mixed with binders that harden when activated with water. It locks pavers together, resists weeds, and stands up to rain and freeze-thaw far better than regular sand. We replace failed joints before sealing so the whole surface is stable.
Can you seal pavers over the winter?
No. Sealing needs dry conditions and temperatures typically above the mid-50s, so we schedule paver work spring through fall. Late spring and early fall are our busiest windows in Denville because surfaces cure cleanly before or after the wet season.
Will sealing make my pavers slippery?
We can use matte or natural-finish sealers that don't leave a slick surface, which matters on walkways and pool decks. If you want a wet-look enhanced finish, we'll talk through it so you know what to expect on high-traffic areas.
Do you clean the pavers before sealing?
Always. Sealing over dirt, moss, or old failing sand just traps the problem. We clean the surface, let it dry, re-sand the joints with polymeric sand, then seal. Cleaning is part of doing the job right, not an upsell.
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