An older patio does not always need to be completely removed and rebuilt. If the pavers are sound and the base under them hasn’t failed, new joint sand, a reset edge and a few re-leveled spots can make it look and work like new.
Start with a simple test by pressing on the border pavers with your foot. If they slide sideways, the problem is the edge, not the base, and that’s a repair, not a rebuild.
What to Check First
| What you see | Likely cause | Refresh, repair or replace |
|---|---|---|
| Weeds or empty joints | Joint sand washed out | Refresh it with a cleaning and new polymeric sand |
| Edge pavers spreading or tipping | Missing or failed edge restraint | Repair it by resetting the edge and adding restraint |
| One low spot that holds a puddle | Base settled in one area, often under a downspout | Repair it by lifting that area, rebuilding the base and relaying it |
| The whole patio uneven or heaving | Base too thin or holding water | Replace |
| Patio is fine but too small | Nothing is wrong | Expand it |
Should You Repair or Replace Your Paver Patio?
Whether a tired patio can be repaired depends on the base under the pavers, not on how the surface looks. Plenty of homeowners call paver patio contractors ready to pick out a new patio when the old one only needs its joints and edges fixed. The reverse happens too, since a patio can look clean on top while the gravel and soil underneath settle a little more each spring.
A worn surface sitting on a solid base is usually a repair. Settling across the whole patio, movement that comes back after it’s been fixed, or water running toward the house all point to a problem underneath. Simply sweeping new sand across a patio with significant settlement underneath it does not solve the actual problem.
When we look at an older patio, we work through five questions:
- Are most of the pavers still sitting evenly, or do some rock when you step on them?
- Are only a few areas moving, or is the movement spread across the patio?
- Is the patio shedding water away from the house, or does rain sit in puddles on it?
- Have the edges stayed secure, or are the border pavers drifting into the lawn?
- Is the surface itself the problem, or has the way you use the backyard simply changed?
If the answers point to one or two spots, a refresh or a spot repair is usually enough. If they point to the whole patio, the base is the problem, and the replacement section further down covers what that means.
Sometimes a Surface Refresh Is Enough
A surface refresh is enough when the base under the patio is still firm and the trouble sits in the joints, the edges or a handful of pavers. It tears up far less of the yard than a rebuild, and the pavers you already own stay in place. Typical refresh work includes:
- Cleaning the surface. A paver cleaner lifts ground-in dirt, moss and efflorescence, the white chalky film that shows up when salts inside concrete pavers rise to the surface with water.
- Re-jointing or re-sanding. The old sand, moss and weeds come out of the joints and new joint sand goes in. Paver joints hold sand, not mortar, so this is re-sanding, not re-grouting.
- Resetting individual pavers. Pavers that rock or sit low in one spot are lifted, the bedding sand under them is leveled, and the same pavers go back down.
- Correcting a shifted edge. Border pavers are pulled back into line and held with edge restraint, a buried plastic, metal or concrete edge that keeps pavers from spreading into the lawn.
- Cleaning up the lawn transition. Sod that has crept over the border is cut back, and the soil is set just below the pavers so mowing and rain don’t keep pushing dirt onto the patio.
- Redefining the beds next to the patio. Bed edges are re-cut and mulch or rock is refreshed, so the patio and the planting around it look finished again.
Fix the movement first. Reset the low pavers and repair the failing edge before adding new joint sand. Otherwise, the fresh sand will crack or wash out as the patio continues to shift. Focus the work on the areas that are actually failing and leave sections that are still level and draining properly alone.
Why Are My Pavers Sinking?
Pavers sink when the base under them moves. In St. Louis that’s usually water: a downspout that empties onto the patio, a low spot where rain collects, or clay under a base that was too thin to start with. Water softens what’s underneath, and the pavers settle into it.
One sunken area is usually a repair. We lift the pavers, find where the water is coming from, rebuild the base in that spot and lay the same pavers back down. If the whole patio has sunk or rolls like a wave, the base itself failed, and resetting pavers on top of it won’t last.
You can find the water source yourself. Walk the patio during or right after a heavy rain and note where each downspout empties, where runoff crosses the pavers from the lawn or beds, and which puddles last longest. The low spot and the water feeding it are usually close together, so moving a downspout or regrading a bed edge is often part of the repair.
Can You Re-Sand a Paver Patio?
Yes. Re-sanding a paver patio is the simplest refresh, and it fixes weeds and wobbly pavers when the base is still good. The old sand and weeds come out of the joints, the surface gets cleaned, and polymeric sand goes in. Polymeric sand is joint sand mixed with a binder that hardens when it’s wetted, so it holds the pavers tight and resists weeds and ants better than plain sand.
Re-sanding won’t fix a sunken or heaving patio. If the pavers aren’t level, fix the base first. Polymeric sand locks pavers where they sit, so on a patio that is still settling it locks in the dip and then cracks as the ground keeps moving.
Polymeric sand also needs the right weather. The pavers and joints have to be dry when the sand is swept in, and then the surface is misted to set the binder. A heavy rain before it sets can wash the binder out of the joints and leave a hazy film on the pavers, so a re-sand needs a dry stretch in the forecast.
Your Patio Might Not Be Worn Out. It Might Just Be Too Small
A patio that sits flat and drains well can still be the wrong size for how you live now. Many older patios were laid out for a small table and a grill, not for sectional seating, a larger dining table, a fire feature, an outdoor kitchen or a hot tub. In that case nothing needs repair. The patio needs more room.
An expansion can be built as an extension of the patio you already have. The plan has to account for the existing grade, where water drains and how the new section meets the old one, so rain still runs away from the house and the seam between old and new doesn’t turn into a trip line or a low spot.
Start with how you’d use the extra space. A fire pit needs room for chairs on every side, a hot tub needs a level pad that can carry its weight when it’s full of water, and a dining table needs space to pull chairs back without stepping onto the lawn. Putting the added square footage where it does the most work keeps the expansion smaller and the cost lower.
When Does a Paver Patio Need to Be Replaced?
A paver patio needs replacing when the problem is the base under the whole thing, not one spot. You’ll see the surface roll, several areas sink, or water stand on it after every rain. Patching those patios just moves the low spot somewhere else.
You can check this with a straight board or a long level. Lay it across the patio in a few directions and look for gaps underneath. Gaps under one short stretch point to a single bad spot. Gaps nearly everywhere you check, or a surface that rises and falls like a wave, mean the base has failed and needs to come out.
A rebuild means lifting the pavers, digging out the old base, fixing the grade so water runs away from the house, and laying a new compacted gravel base before the pavers go back down. How deep that base goes depends on the soil, the slope and what the patio has to carry, which is what we check at the free on-site assessment.
See Related Work
Two-Tier Belgard Paver Patio Rebuild in Ballwin, MO
This Ballwin patio had settled unevenly and no longer sat level, so a refresh wouldn’t have held. We removed it, regraded the area, prepared a new gravel base and rebuilt it as two tiers of Belgard 3-piece pavers with a dark border inlay, with a block wall and new block steps between the tiers. The homeowner’s review says the crew dug out the old sand base and replaced it with gravel. The work took three working days.
What Does It Cost to Refresh, Repair or Replace a Paver Patio?
A new patio can return a large share of its cost at resale. NAR’s 2023 Remodeling Impact Report estimates that a new patio can recover about 95% of its cost, although the actual effect on home value still depends on the property, the quality of the installation, and how much usable outdoor space the patio creates.
For St. Louis homeowners, new paver patio installations typically start around $8,000. Larger or more involved projects can move well beyond that depending on patio size, paver selection, site access, grading, drainage requirements, steps, retaining walls, and other features connected to the space.
- When Excel Landscaping builds a patio from scratch, the project includes more than setting pavers on the surface.
- Proper excavation and base preparation for the site conditions
- Drainage and pitch planned as part of the installation
- Paver systems selected around the property and how the space will be used
- Integration with steps, retaining walls, walkways, or surrounding landscaping when needed
- Installation by a crew with 25+ years of combined hands-on experience
- Work backed by a 3-year workmanship warranty
Once those site and installation details are worked out, we put the full scope into one project proposal. From there, we handle the patio from start to finish, including required permits, site preparation, drainage planning, construction, and the final details around the space.