Roy's Concrete & Masonry, Inc. Call
Backyard with terraced ledger stone retaining walls, pool, and raised spa

Stonework

Flagstone, slate, bluestone, and stacked ledger — natural stone selected, cut, and set by hand, by the same family crew since 1982.

The craft

Stone is where craftsmanship shows

Concrete can be formed and poured, but stone has to be fit. Every flagstone patio and stacked-stone wall on this page was laid one piece at a time — each stone hand-selected for its shape and color, cut where it needs to be, and set in a full mortar bed over a properly prepared base.

That base is what separates stonework that lasts from stonework that fails. Before a single stone goes down, we make sure the ground beneath it is compacted, reinforced, and draining the right way — the same structural discipline we bring to foundations and retaining walls. It’s why our stone patios stay flat and our joints stay tight, decades after installation.

Materials we work in

  • Arizona flagstone
  • Pennsylvania bluestone
  • Multicolor slate
  • Ledger & stacked stone
  • Travertine
  • Fieldstone veneer
  • Quartzite

From the warm reds of Arizona flagstone to the cool blue-grays of Pennsylvania bluestone, each material has its own character. We help you choose stone that suits your home, your landscape, and the way you actually use the space — then we source it from suppliers we’ve trusted for decades.

Serving Torrance, the Palos Verdes Peninsula, the beach cities, and the greater South Bay.

Flagstone patios & outdoor kitchens

Flagstone is the workhorse of South Bay outdoor living — durable, naturally slip-resistant, and beautiful in every direction. These projects pair mortared flagstone surfaces with built-in BBQ islands and outdoor kitchens finished in stone and smooth concrete.

Built-in BBQ island with a poured concrete counter, set on a mortared flagstone patio
Multicolor flagstone entry patio, mortar-set with tight, even joints
Curved BBQ island faced in natural stacked stone, slate flagstone underfoot
Outdoor kitchen and bar — ledger stone base with a wraparound concrete countertop

Before & after

The same yard, transformed

Some of our favorite stone projects start with tired concrete that’s structurally sound. When the slab underneath is good, natural stone can be set directly over it — a dramatic transformation without the cost of demolition.

Pennsylvania bluestone patio. The existing concrete patio was sound but plain. We set full-color bluestone in a mortar bed directly over the slab, rebuilt the spa surround coping to match, and finished the joints in a complementary gray.
Multicolor slate stairway. Decades of wear had left this long entry stair crumbling and uneven. We repaired and re-leveled each tread, then faced the entire run in multicolor slate — rust, gold, and slate-gray tones that turn a utility stair into an entrance.

Walkways, stairs & garden features

Stone paths and stairways do double duty: they solve a grade change or connect two spaces, and they set the tone for the whole garden. On hillside lots we pair them with stone-faced walls that hold the slope and look like they’ve always been there.

Arizona flagstone steps, seat wall, and garden pedestal
Hillside stairway flanked by hand-fit fieldstone walls

Poolside stonework

Around water, stone has to be beautiful and practical — slip-resistant underfoot, comfortable in bare feet, and detailed to shed water away from the pool. Ledger stone walls, travertine coping, and flagstone decks are the signature look of our South Bay pool projects.

Ledger stone raised wall with bullnose travertine coping
Travertine steps and coping with a stone-tiled spa wall
Freeform pool and raised spa wrapped in golden flagstone
Terraced stacked-stone retaining walls reclaiming a hillside yard

Common questions about stonework

Can you install stone over my existing concrete?

Often, yes. If the existing slab is sound — no major cracking, settling, or drainage problems — natural stone can be mortar-set directly over it, which saves the cost of demolition. Both of the before-and-after projects on this page were installed over existing concrete. If the slab underneath is failing, we’ll tell you honestly and price out a proper new base instead.

Which stone holds up best outdoors in the South Bay?

Nearly all of the stone we install — flagstone, bluestone, slate, travertine, quartzite — performs well in our mild coastal climate. The bigger considerations are slip resistance around pools, heat underfoot in full sun, and how a stone’s color works with your home. We’ll bring samples to your estimate so you can see the material in your own light.

How much maintenance does natural stone need?

Very little. Occasional rinsing is usually all a stone patio or walkway needs.

What does stonework cost?

It depends on the stone you choose, the size and access of the area, and what’s under it — stone over a sound existing slab costs considerably less than a full excavation and new base. Estimates are always free: call (310) 539-8023 and we’ll walk the project with you.

Let’s build something that lasts

44 years of South Bay craftsmanship, one phone call away. Estimates are always free.