Interlocking Pavers, from the subgrade up
Units shaped to lock together and spread the load across the field.
What actually goes wrong
Here is the honest version: a sunken paver is a symptom. The base under it lost material, usually to water, and the surface settled into the gap. Resetting the pavers without correcting the base just buys you a season.
When a driveway edge starts to sink, look at the water. Along much of the coast the water table sits high, so rain has less room to drain down and tends to travel sideways instead. Moving sideways, it carries sand out from under the edge.
Moisture collects under a walkway, and roots go where the moisture is. Ficus, black olive and a lot of older shade trees root shallow and wide, so they find that damp layer and push the pavers up.
That is why the schedule on our jobs is mostly spent on the part you will never see again. The surface takes a day or two. The ground it sits on takes the rest, and the ground is what you are actually paying for.
How we run this job
We come look at it
Nobody can tell you much from a photo. One of us comes and walks the property with you, looks at where water collects, and gives you an honest opinion, small job or big one.
You get the plan in writing
Scope, materials, schedule, and cost on paper before a shovel moves. The number you approve is the number, not an opening position.
We build the base first
Excavation to the depth this job actually needs, aggregate compacted lift by lift, bedding screeded flat. The slow part, and the part that decides whether the surface is still flat in ten years.
Pavers go down and get cut in
Laying the field is the fast part. The care is in the cuts at the edges and the restraint that locks the whole field in place.
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.
How the material changes the outcome
Availability is worth thinking about up front. Manufacturers discontinue lines. Buying a small overage of the same production run and keeping it somewhere dry is the cheapest insurance in this whole trade.
Absorption drives most of the durability difference. A dense, low-absorption unit takes less water in, so it stains less and is less affected by salt. That is most of why porcelain behaves the way it does.
Material choice changes four things at once: what it costs, how it feels underfoot, how it ages, and how easy it is to match in five years when something needs replacing.
If nobody talks to you about drainage, they are quoting a different job.
Ask what goes in the joints. On most patios now the answer is polymeric sand, which binds when it is wetted and holds up to washout much better than plain sand does. It is also easy to get wrong. It has to be installed dry, swept off the surface completely before any water, and watered in per the manufacturer’s directions. Hurry any of that and you get a hazy film.
The cheapest material on a patio may be the one that holds it together. Joint sand transfers load between pavers, and that transfer is what makes a field of loose units act as a surface. When joints wash out, each paver is left carrying its own load. That is exactly when they begin to rock, and rocking pavers crack.
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.
Other materials we lay
Across the region, these are some of the areas where we do this work most often:
What it asks of you afterwards
People walking across pavers are rarely looking at their feet, which is why a raised edge matters. More than about a quarter inch of lift is enough to catch a toe. Deal with that one quickly, especially on commercial property, where it is a liability concern along with a maintenance one.
Upkeep on a well-built paver surface is light. Sweep leaves and debris off before they break down in the joints, top up the joint sand when it gets low, and call about any dip while it is still small. Most owners do little else.
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.
If staining is your main worry, porcelain is close to stain-proof. It absorbs almost nothing. It asks more of the installer than most materials, though: an uneven bed shows through, so base work has to be precise, and cutting it cleanly takes the proper blade and some patience.
Pick a paver at random from our jobs and it is probably concrete. You get the widest pick of shapes and colors, and a unit that lays predictably. Because the color is mixed into the concrete, it fades slowly with sun and does not peel or wear away. Early on it does drift a little as the pavers finish curing.
Clay brick ages without changing color. The color is the fired clay, so sun has nothing to bleach out. It is more expensive and the shape options are narrower, and for a surface you want looking the same in twenty years, it is hard to beat.
The failures we get called out to fix
These shortcuts all pass a walk-through on day one. The problems arrive later, and that delay is why they stay common.
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.
Using the wrong sand in the bedding
Bedding sand that is round acts like a layer of ball bearings. Pavers set on mason or beach sand drift under load. Sharp, angular concrete sand stays put.
Sealing too early
Sealing is a timing job on new concrete pavers. They have to cure, and their efflorescence has to work out to the surface, before the sealer goes on. Rush it into the first month and the white haze gets sealed in.
Laying over the old surface
An overlay inherits everything beneath it. Settled spots and a soft base stay exactly where they were. If the base is what sank the old surface, the new layer just hides it for a season before the same failure comes back.
Compaction in lifts is the difference between ten years and two.
Common questions
Will the new pavers match what I already have
You will know before we order anything. Plenty of repairs match exactly. Others come close, since concrete pavers shift color a little with sun and age and older lines get discontinued. When close is not good enough, we can move units from a less visible area onto the visible patch.
What happens to the old surface
That part is on us. The existing surface gets broken out and hauled off the property, and concrete and pavers go to recycling when there is a recycler in the area. It is covered in the scope you sign.
How do you keep it from settling again
The answer depends on what made it settle, which is why we look before we price it. Drainage problems get corrected and a failed base gets dug out and rebuilt, and if a root is pushing, it gets dealt with too. Then the pavers go back down on a base with a reason to stay put.
Do you work with HOAs and property managers
Your rules come first. We regularly work for associations and property managers, which means board timelines and submittals are routine for us. Share your approval process and we will schedule the work, in phases if needed, so residents keep access.
Do you cover Miami, FL
It is our home turf. We are based in Miami, FL and out on jobs around it most weeks, so getting to you is rarely the hard part. Call and we will give you a real answer on dates.
Is there a warranty
Yes. Get any contractor’s warranty in writing and read what it excludes. Ours is written and covers our workmanship. It is also clear about its limits, like a root that arrives later or a drainage change. The pavers have separate manufacturer coverage, and we give you those papers.
Have somebody come look at it
You will get what we find in writing. One of us walks the property with you, checks where the water goes, and writes it up, which beats any answer we could give without seeing it.
Quality you can stand on