Hardscaping in Sherman Oaks, CA

Hardscaping in the strict sense is dry laid. Pavers, flagstone, gravel, and decomposed granite sit on a compacted aggregate base with sand or fines between the units, and nothing is mortared or poured. The surface flexes slightly with ground movement and individual pieces can be lifted and reset. Concrete is poured as a monolithic slab and masonry is set in mortar, so both are rigid, and when the ground beneath them moves they crack rather than adjust. Both approaches have their place, but they behave very differently over time.

Below the pavers there is a thin bedding layer of coarse sand, and below that the actual structure: several inches of crushed aggregate compacted in lifts. That base carries the load and distributes it across the subgrade. Underneath the aggregate is the excavated and compacted native soil, graded to fall in the same direction as the finished surface. Skimping on base depth or compacting it in one thick pass instead of layers is the single most common reason a patio settles unevenly within a few years.

Depth depends on what the surface carries and what is under it. A pedestrian patio needs less than a driveway that will hold vehicle weight. On the clay found across much of Sherman Oaks, we generally build deeper than we would over well draining soil, because clay holds moisture and offers less consistent support. Where the subgrade is particularly soft, a geotextile separation fabric goes down first so the aggregate does not gradually work its way into the soil below and lose thickness.

Compaction is what turns loose stone into a load bearing layer. Aggregate placed and not compacted still contains air voids, and those voids close under foot traffic and rain over the following year, which shows up as dips and low spots in the finished surface. We compact in lifts of a few inches at a time, because a plate compactor cannot densify a thick layer from the top. The subgrade gets compacted too, before any aggregate goes down. It is invisible work that determines the entire result.

Never. All of our hardscaping is installed by one licensed contractor, from the excavation and base work through the cutting, laying, and finishing. We do not pass projects to outside companies. Dry laid work rewards experience heavily, and having the same trained people doing our base preparation and our paver setting is how the results stay consistent from one job to the next. You will see the same faces on your property through the project, and they answer to us directly.

Two things happen. The finished surface is pitched so water sheets off it rather than sitting, usually toward a planting area or a drain rather than toward the house. Then the base itself is built from open graded stone that lets water pass through rather than perching on top of the clay. Where the volume warrants it, a perforated pipe runs within the base to collect what filters down and carry it away. On a hillside lot, that subsurface line is often the difference between a stable patio and a settling one.

It creates the usable ground. On the slopes running up toward Mulholland, there is frequently very little naturally flat area, so terraces are cut and held with retaining structure, and each terrace becomes a patio, a path, or a planted level. Steps connect them. The layout usually gets organized around the valley view, with the primary sitting terrace positioned where the view opens up. All of this depends on drainage being designed for the water arriving from uphill, not just for rain falling on the patio itself.

Joint sand fills the gaps between pavers and is what locks the field together. When the joints are full, the units transfer load to each other and the surface behaves as one flexible plane. When joints wash out, individual pavers start to rock and shift. Polymeric sand binds when wetted, resists washout better than plain sand, and slows weed germination in the joints. It needs to be installed dry, swept fully into the joints, and activated carefully, since haze left on the surface is difficult to remove afterward.

Yes, on essentially every dry laid installation. Without a restraint at the perimeter, the outer course has nothing holding it and gradually creeps outward under load, which opens the joints behind it and unravels the field from the edges inward. Edge restraint can be a buried plastic or metal rail spiked into the base, a poured concrete toe, or a soldier course set into a bond beam. Gravel and decomposed granite areas need containment as well, otherwise the material migrates into planting beds and onto walkways.

Decomposed granite gives a soft, informal surface at a lower cost and reads well in a naturalistic planting scheme. Stabilized with a binder and compacted, it holds up reasonably to foot traffic. It is not maintenance free, though. It sheds fines, needs occasional topping and re-compacting, and tracks indoors on shoes. Pavers cost more upfront and take considerably more labor to install correctly, but the surface stays put, cleans easily, and handles furniture and traffic without degrading. Many yards use both, with pavers where people sit and decomposed granite on secondary paths.

Steps are built to a consistent rise and run, because inconsistency is what makes people trip. Each tread sits on its own compacted base rather than on backfilled soil, since fill settles and a settling step is a hazard. On a slope, we set the total elevation change first, then divide it into equal risers and work out the run from there, which sometimes means adjusting the path alignment to make the numbers come out right. Treads are pitched very slightly forward so water drains rather than pooling.

A seat wall is a low wall built at sitting height, usually along the edge of a patio or terrace. It does several things at once: defines the boundary of the space, provides seating that never has to be stored or moved, and where a patio is cut into a slope it can double as a low retaining element. On smaller lots it is efficient, since it gives you seating without filling the floor area with furniture. Capping the top with a wide, comfortable stone is what makes it actually get used.

Clay expands as it absorbs moisture and contracts as it dries, so the ground under a patio does not stay perfectly still through the year. A dry laid surface handles that better than a rigid slab, because the individual units can move fractionally without cracking. We still take steps to reduce the movement: keeping water out of the subgrade with proper surface pitch, using an open graded base that drains instead of holding moisture, and building base depth generously so the load is spread over a wider area of the soft soil.

It shapes the project significantly. Hardscaping requires moving a great deal of weight, since aggregate base and stone are heavy and a patio consumes tons of material. When a property has a steep or narrow approach, a machine may not be able to reach the work area at all, and everything moves by wheelbarrow, buggy, or hand. That changes staging, labor, and sometimes the material choice itself. We walk the access path before quoting, because it is a genuine factor in what is practical to build.

Flagstone is the common choice for dry laid patios and paths, set on the same compacted base as pavers with joints filled with sand or planted with a low ground cover. It reads more organic than manufactured units and suits the mature, established feel of older Sherman Oaks neighborhoods. Thickness matters when it is dry laid, since thin pieces crack underfoot. Selecting stone with a reasonably flat cleft face makes for a comfortable walking surface. Color choice is worth considering against the house rather than in isolation.

The pavers themselves outlast most other things in a yard, since they are dense units that do not degrade. What actually determines longevity is the base beneath them. A properly excavated, layered, and compacted base with drainage built in will hold a surface flat for decades. A thin or poorly compacted base produces visible settlement in a few seasons. The maintenance is minimal: keep the joints filled, address any low spot early, and wash the surface occasionally. Individual damaged units can be lifted and replaced without touching the rest.

Frequently, yes, though the existing conditions dictate the approach. We look at what irrigation runs through the proposed area, since lines will be crossed and often need rerouting before excavation. Established tree roots are another consideration, because cutting significant roots to build a patio can compromise a mature tree that is doing a lot for the property. Sometimes the answer is shifting the patio a few feet or floating the base over the root zone rather than excavating into it.

Reach us at (818) 443-9300 and we will schedule a walkthrough of the property. We measure the area, check the existing grades and how water currently moves across the site, assess the soil and the access route, and discuss materials with you. From there you receive a free written estimate covering base preparation, materials, edging, and drainage so nothing is hidden. Daniels Landscaping carries California license 1138709 and installs every project with one licensed contractor.