Polymeric Sand Replacement in the GTA
Polymeric Sand Replacement
Protect and extend the life of your interlock with professional polymeric sand replacement. We remove failed joint material and install high-quality new sand to help prevent weed growth, ant intrusion, joint washout, and paver movement.
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Why Choose Seal-It Group for Polymeric Sand Replacement
Proper polymeric sand replacement is a precise, multi-step process—when done incorrectly, it can lead to joint failure, staining, or even damage to the pavers themselves. At Seal-It Group, we follow a proven system that ensures long-term performance. The process begins with carefully power washing the surface to remove all existing sand and debris right down to the bottom of the joints, without disturbing the base or edges. The surface is then allowed to fully dry—an essential step that is often rushed or ignored and can result in total sand failure. Once conditions are correct, we install a high-quality, commercial-grade polymeric sand such as TechniSeal HP NextGel, applied with precision to ensure proper joint fill, activation, and curing. This attention to detail is what separates lasting results from costly mistakes. With specialized crews, industry-leading materials, and years of hands-on experience, Seal-It Group is the trusted choice for polymeric sand replacement—protecting your interlock, preserving its appearance, and extending its lifespan the right way.
The Importance of Polymeric Sand Replacement
Polymeric sand plays a critical role in maintaining the structural integrity and performance of interlock surfaces. Over time—typically every three to five years—exposure to weather, foot traffic, and natural erosion causes the sand between pavers to deteriorate or wash out. When this occurs, moisture can penetrate beneath the pavers, and repeated freeze-thaw cycles begin to shift the base, leading to movement, settling, and uneven surfaces. Proactively replacing polymeric sand as part of a professional maintenance program helps lock pavers in place, limit water infiltration, and prevent premature base failure. Regular polymeric sand replacement is a cost-effective way to protect your investment, reduce the risk of costly repairs, and ensure long-term durability and performance of your interlock surfaces.
Key Benefits
- Maintain Structural Integrity of Interlock Pavers
- Prevent Water and Moisture from Seeping Under the Surface
- Prevent Weed Growth
- Prevent Insect Infestation
- Improve the Overall Appearance of the Interlock Surface
- Extend the Lifespan of Your Interlock Installation
The Process
The Restoration process includes several tedious steps including a thorough surface prep, polymeric sand installation and finally sealing.
Repairs
Powerwashing & Surface Prep
Polymeric Sand Installation
Sealing
FAQs
Find answers to common questions about our polymeric sand replacement service.
What is polymeric sand?
Polymeric sand is a specialized joint sand used between interlock pavers that contains fine sand combined with polymer additives. When activated with water, it hardens within the joints, helping lock the pavers together while reducing weed growth, insect activity, and sand erosion.
How often should polymeric sand be replaced?
Polymeric sand should typically be replaced every 3 to 5 years, depending on weather exposure, foot traffic, vehicle traffic, and maintenance practices. Over time, natural wear and cleaning processes can cause the sand to deteriorate or wash out.
Why is polymeric sand replacement important?
Polymeric sand plays a critical role in maintaining the structural integrity of interlock surfaces. When the sand between the pavers deteriorates, it allows water to penetrate beneath the surface, which can lead to paver movement, settling, and other costly repairs.
What are the signs that polymeric sand needs to be replaced?
Common signs include missing or washed-out joint sand, weeds growing between pavers, ants or insects nesting in the joints, loose or shifting stones, and visible gaps between the pavers.
Can polymeric sand simply be added on top of old sand?
No. For proper results, the existing deteriorated sand must first be completely removed from the joints. Installing new polymeric sand over old material can prevent it from properly bonding and may lead to premature failure.
What is the process for replacing polymeric sand?
The process typically involves thoroughly power washing the surface to remove existing sand and debris, allowing the surface to fully dry, installing new polymeric sand into the joints, mechanically compacting the pavers, and activating the sand with water according to manufacturer specifications.
Real Clients. Real Results.
I’m a repeat client of Seal It Group. A couple of years ago Alex and team gave me a new look to the front of my home with artificial grass and a flower box – which I love. This year I needed maintenance on my driveway and back walk out with new polymer sand plus getting my deck re-stained. The results exceeded my expectations and make my home look entirely different. Alex also has the most hard working and reliable team I’ve experienced. I highly recommend this company, Alex’s leadership and the work ethic and integrity of the team.
Denise Hayes,
“Our backyard, side walkway and front of the house looks great. They took the time to keep the outside as clean and organized as possible and even sealed our driveway after the whole job was complete and helped us plant a couple trees.”
Wendy,
Oakville
“I challenge anyone to find a better, more honest contractor. Alex and his team were spot on throughout this project. We had to make some changes on the fly and he didn’t miss a step.”
Mitchell,
Mississauga