Polymeric Sand Installation, from the subgrade up
Polymeric sand installed dry, swept clean, set properly.
What actually goes wrong
The failure is almost always below the pavers. Sand washes out of the joints, water gets down into the bedding, the bedding migrates, and the surface drops. Everything you can see is downstream of that.
The water table sits high across a lot of the coast, so there is less room for water to go down and more reason for it to move sideways. That is what takes the sand out from under a driveway edge.
Mature trees are the second cause. Roots go where the water is, and a paver base holds moisture, so they grow straight into it and push the surface up.
So the real question to ask anybody bidding this work is not what pavers they use. It is how deep they excavate, how they compact, and where they think your water goes. The answers tell you everything about how long the job will last.
How we run this job
We come look at it
Somebody from the crew walks the property with you, looks at where water goes, and tells you what we actually see. If the fix is smaller than you were expecting, we will say so.
You get the plan in writing
Scope, materials, how long it takes, and what it costs, written down before anybody starts. No verbal numbers that change later.
We build the base first
Excavation to the depth the job needs, compacted aggregate in lifts, and a screeded bedding layer. This is the part nobody sees and the part that decides whether the surface is still flat in ten years.
Pavers go down and get cut in
The field goes down to the pattern, edge cuts happen on site, and the perimeter gets a restraint so nothing creeps.
Joints get filled and the site gets cleaned
Joints filled and set, everything washed down, our own debris on our own truck. The site is yours again the same day we finish.
What cleaning and sealing can and cannot do
Pressure is the most common way people damage their own pavers. Too much pressure erodes the cement paste off a concrete unit and blows the joint sand out, which looks clean for a week and then fails faster than before. Cleaning is a chemistry job with pressure as an assist, not the other way around.
Sealing is optional and it is a preference. It deepens color, makes stains easier to lift, and helps hold joint sand. It also needs redoing on a cycle, and the wrong sealer or a surface sealed too early can trap moisture or lock a white haze in permanently.
Efflorescence is not a defect. New concrete pavers push mineral salts to the surface as they cure, and it clears on its own or with the right cleaner. Sealing over it before it has finished is what turns a temporary haze into a permanent one.
A sunken paver is a symptom. The base under it is the disease.
The sand in the joints is structural. It is what transfers load from one paver to the next, which is the whole mechanism that lets a field of loose units behave like a surface. When joints wash out, each paver starts carrying its own load alone, which is exactly when they start rocking and cracking.
Polymeric sand binds when it is wetted and resists washout better than plain sand, which is why it has become the default. It has to go in dry, get swept properly off the surface before wetting, and be watered in the way the manufacturer specifies. Rushed installation is why some jobs end up with a hazy residue over the pavers.
Joint sand
Structural, not cosmetic. It transfers load between units, which is the whole reason a field of loose pavers behaves like a surface.
Separation
Geotextile between subgrade and base stops fine soil migrating up and destroying the aggregate structure.
Base depth
Set by what the surface carries, not by habit. A walkway and a truck-bearing drive are not the same excavation.
More restoration work
We cover this across the region. A few of the areas we work most:
What it asks of you afterwards
A paver surface that was built properly asks for very little. Keep the joints topped up, keep organic debris from composting in them, and deal with a settled area while it is small. That is genuinely most of it.
Sealing is optional and it is a preference rather than a requirement. It deepens the color, makes stains easier to lift, and helps hold joint sand. It also needs redoing every few years and a bad sealer choice can leave a plastic-looking sheen or trap moisture. We will tell you honestly whether your surface benefits.
The thing worth acting on quickly is a trip hazard. A lifted edge of more than about a quarter inch is something somebody will catch a toe on, and on a commercial property that is a liability question as well as a maintenance one.
Travertine is the one people ask for around pools, and for a good reason: it stays noticeably cooler underfoot than concrete in direct sun. It is a natural stone, so there is variation between units, and it wants a sealer if it is somewhere that gets oil or heavy staining.
Porcelain is the newest of these in residential work. It is dense, absorbs almost nothing, and is close to stain-proof. It needs precise base work because it is unforgiving of an uneven bed, and cutting it takes the right blade and patience.
Concrete pavers are the workhorse and cover most of what gets installed. Widest range of shapes and colors, most predictable to lay, and the easiest to match later. Color is pigment through the unit, so it fades gently with sun rather than wearing off, though it does shift over the first year or two as it cures out.
The shortcuts that surface two years later
None of these are visible on the day the work finishes, which is exactly why they keep happening.
Using the wrong sand in the bedding
Bedding wants sharp, angular concrete sand. Rounded mason sand or beach sand behaves like ball bearings under load and lets the pavers wander.
Sealing too early
A new concrete paver needs to cure and let its efflorescence work out before it gets sealed. Seal it in the first month and you can lock a white haze under the sealer permanently.
Laying over the old surface
It is quick, it is cheap, and it inherits every problem underneath. If the base was the reason the old surface failed, putting a new one on top of it just hides the failure for a season.
Skipping the geotextile
A separation fabric between the subgrade and the base stops the two from mixing. Without it, fine soil migrates up into the aggregate, the base loses its structure, and you get settlement that no amount of surface work will fix.
If nobody talks to you about drainage, they are quoting a different job.
Common questions
How long does the job take
A typical polymeric sand installation job runs two to five working days once we start. Base work is the slow part; laying the field goes quickly. Weather moves things, and in summer we plan around the afternoon storms rather than pretending they will not happen.
Do I need to be home while you work
No. We need access and a water source. Most people go to work and come home to a finished section. If we hit something unexpected we call you that day, not at the end.
Will the new pavers match what I already have
Sometimes exactly, sometimes closely. Concrete pavers change color a little with sun and age, and older lines get discontinued. If we cannot match, we will show you the options before we order anything, including pulling units from a less visible area to patch a visible one.
What happens to the old surface
We break it out and haul it off. Concrete and old pavers go to a recycler where one is available. That is included in the scope, not added on after.
How do you keep it from settling again
By fixing the reason it settled. That usually means correcting drainage and rebuilding the base properly, and sometimes it means dealing with a root or a downspout that is dumping water in the wrong place.
Do you cover Miami, FL
Yes. Miami, FL is inside our regular working area and we are out that way most weeks. Call and we will tell you honestly when we could get to you.
Have somebody come look at it
Call and describe it, or send pictures. You will get a straight answer about what is wrong and what it takes to put right, including when the honest answer is that it can wait a year.
Quality you can stand on