FAQ
Hardscaping in Porter Ranch, answered
The questions we hear most from Porter Ranch homeowners.
Hardscaping as we use the term means dry laid construction. Pavers, flagstone, gravel, and decomposed granite are set on a compacted aggregate base with a sand setting bed, and the surface holds together through friction, joint sand, and a restraint around the perimeter. No wet material is placed and no mortar is used anywhere in the assembly. Concrete and masonry are the opposite: wet material placed and cured into a single rigid mass, or units bedded in mortar. Both approaches are legitimate. Dry laid work moves slightly with the ground instead of cracking, and individual units can be lifted and reset, which is the practical advantage on ground that shifts.
Excavation first, down to firm subgrade with the loose material removed rather than smoothed over. Then crushed aggregate placed in lifts and compacted with a plate compactor between each lift, because a thick layer dumped at once never compacts through. A thin screeded sand layer sits on top of the compacted base and receives the pavers. Depth of base depends on the soil and on whether the surface will carry foot traffic or vehicles. Almost every failed patio traces back to this stage, either shallow base, base placed in one lift, or subgrade that was never firm.
Expect that it will. Committees in these neighborhoods generally review material, color, and the height of anything built up, which puts paver style and the finished height of a seat wall or a border squarely in scope. Practically, that means we select and price the material before submission rather than during construction, and we avoid a change of product halfway through. If a preferred paver is not going to pass, it is far better to learn that on paper. We assemble what you need for the submission and schedule the crew around the approval, not ahead of it.
Level changes are the whole design problem on these lots. A slope is broken into flat usable pads connected by steps, and the steps have to hold a consistent rise and run so people move without watching their feet. Dry laid steps need a solid base under each tread and a positive way to stop the risers from creeping forward over time. Where a change in level is too tall for a step, it becomes a wall and a terrace instead. Getting the pad elevations right on paper first saves a great deal of dirt moving later.
Two paths, and a good installation uses both. Surface water runs off across a deliberate slope built into the paving, never dead flat, toward a planted area, a channel drain, or a basin. Water that works down through the joints has to be able to leave the base rather than sit in it, which is why the aggregate is open enough to move water and why we tie a drain into the low side when the surrounding grade traps it. Water sitting under a base is what softens it, and soft base is what makes pavers dip.
Ours. Daniels Landscaping stays accountable for the work. The men excavating, compacting the base, cutting, and setting the units work under one licensed contractor, and they are the same crew across the whole job. This is not a policy we make exceptions to. Keeping it under one contractor is how the base work stays honest on the parts of the job nobody will ever see once the surface is down, and it is why you deal with one company from the estimate through the final cleanup instead of chasing whoever was on site that week.
It holds the perimeter. Every paver in the field is kept tight by the ones next to it, so the units at the outer edge are the only thing preventing the whole surface from slowly spreading outward under use. Restraint, whether a rigid edging spiked into the base, a concrete haunch, or a soldier course held in place, stops that migration. Leave it out and the joints open, the sand escapes, and the edge units rotate and drop. The restraint has to bear on compacted base as well, not on loose soil beyond the excavation.
Sand swept into the gaps between the units is what locks the field together and lets the surface behave as one piece. Standard sand works but migrates over time with rain and blowing wind. Polymeric sand contains a binder that sets when watered in, resists washout, and slows weed growth in the joints, which is why we use it on most patios and walkways. Nothing about it lasts forever, though. Every several years the joints benefit from being topped up, and that is a straightforward maintenance task rather than a rebuild.
Manufactured pavers arrive at a consistent thickness and dimension, which makes them faster to set, tighter in the joint, and generally easier on the budget. Natural stone has variation that no manufactured product duplicates, and on a hillside property it can look more at home against the terrain. Stone costs more to install because thickness varies and each piece has to be bedded individually, and irregular flagstone gives a slightly less even walking surface. Both perform well dry laid. The choice usually comes down to appearance, budget, and how formal the rest of the design is.
Loose materials suit paths, side yards, seating nooks, and the transitional areas between planting and built surface, and they cost less per square foot than units. Decomposed granite compacts into a firm surface and can be stabilized with a binder so it sheds rain instead of rutting. Gravel drains freely and reads informally. Both need edging to stay where they were put, and both need a proper base underneath if they will see regular traffic. On slopes, loose material wants to migrate downhill, so it works best on the flatter terraces.
Yes, using segmental wall block or stone units designed to stack, held with construction adhesive between courses and finished with a cap. Dry stacked walls of this type work well at seating and planter height, and they flex slightly with the ground rather than cracking. Height is the limiting factor, and it is also the thing your architectural committee is most likely to ask about, so finished elevation gets decided before submission. Above a certain height a wall stops being decorative and becomes a retaining structure with engineering and permitting requirements, which is a different conversation.
A segmental block wall retains through mass and geometry rather than mortar. The units step back slightly as they rise, they sit on a compacted leveling pad set below finish grade, and gravel is placed behind the wall so water drains down and out instead of pushing on the back face. Taller walls get geogrid layers extending into the retained soil to tie the mass of earth into the wall itself. Once height passes the threshold the building department sets, an engineered design and a permit are required, and that step belongs in the schedule.
It does, and that is one reason paving and gravel earn their place close to the house here. Noncombustible surfaces in the band immediately around a structure give fire nothing to burn and nothing to travel across, which is exactly the outcome defensible space guidance is after. Patios, walkways, gravel bands, and stone borders can be laid out so they serve as usable space and as separation between planted areas at the same time. Breaking a large planted area with paved paths does the same job further out. Design and safety point the same direction more often than people assume.
Dry laid work is repairable, which is its quiet advantage. If an area dips, the units are lifted, the base underneath is corrected and recompacted, and the same units go back down. There is no patch line and no color mismatch the way there is with poured material. Minor settling in the first season is normal as everything beds in. Real settlement usually means water is getting somewhere it should not, so we look for the source rather than simply relevel the surface and wait for it to happen again.
Sometimes, but only when the slab is sound, drains properly, and the added height does not create a problem at doors, thresholds, or the top of a step. An overlay assembly is thinner than a full base build, so any movement or cracking in the slab below eventually reads through. Where the existing concrete is already lifting or badly cracked, removing it and building a proper base gives a far better result and costs less than fixing an overlay twice. We tell you honestly which situation you have after looking at it.
That is a common starting point up here, since the original installation was sized to finish the house rather than to serve how a family actually uses the yard. Removing a small builder slab and rebuilding at a real size is straightforward work, and the demolition happens early while equipment is already on site. Because the homes are relatively new, what we take out is usually intact rather than failing, which means the decision is about layout and material rather than repair. Expanding the footprint also lets us fix the drainage the original layout ignored.
Very little, and what there is stays simple. Sweep or rinse the surface, keep the joints topped up as sand works out over the years, and pull anything that sprouts in a joint before it establishes. Sealer is a choice, not a requirement. It deepens color and helps with stain resistance on lighter materials, and it needs redoing periodically, so plenty of clients skip it happily. Keep planting beds from washing silt across the paving, since silt in the joints is what weeds grow in. Watch for any area that starts holding water and address it early.
Reach Daniels Landscaping at (818) 443-9300 and we will come out, measure the area, look at the grades and the access, and talk through materials with you. What you get back is a free written estimate that spells out the square footage, the base build, the material, and the edge and joint details, so you can compare it honestly against anything else you are holding. Our California license number is 1138709. The visit and the written estimate cost nothing, and the crew that performs the work is the same one that shows up to measure.