Rio Hondo El Monte Concrete pours exposed aggregate, salt and sand finishes on the small lots of this grid, river pebble washed proud of the surface. Every estimate is measured and written on site.
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What the finish is
Exposed aggregate is a plain slab with its top skin taken off. A retarder is sprayed on the fresh surface to hold the cement paste soft, and the next morning that paste is washed away to leave the stone in the mix standing an eighth of an inch proud. What shows is the aggregate the plant put in the truck, and around here that is rounded pebble out of the same river bed the town is built on. A salt finish and a sand finish are the quieter cousins, each a texture rather than a stone.
Rio Hondo El Monte Concrete has poured these finishes from Peck Road since 2015, and Ismael Duarte chooses the stone with you at the yard before the truck is ordered, because the color of an exposed slab is the color of its pebble and no chart can show it. On this grid most houses are rented and the front court does the work of a drive, a bin store and a place to stand, so a finish is chosen for what it hides as much as for how it looks on the morning it is washed.
Every finish goes onto 4 inches of 3,500 psi mix over compacted base, sealed once dry, under a CSLB C-8 license with liability insurance on every job. A decorative slab inside the property line is not filed with the city; the parkway is Public Works ground and its standard is a plain broom finish, so the stone stops at the line and the apron is poured to the city's detail. Every slab leaves with a written workmanship guarantee against defects in how it was built.
Redo or reseal
A pebble that lifts out and leaves a socket was washed too deep, more than a third of its height exposed, so the paste never held it. One or two are nothing. A spreading patch by the gate will keep shedding under bins and tires, and no sealer puts the paste back around what is left.
A dull haze that no hosing shifts is cement paste left on the stone when the wash came late, and it flattens the whole color of the slab. It can be acid washed off once, carefully, but if the exposure under it is uneven the slab reads as patched. A finish washed on time never has it.
A sand finish is a fine grit left in the surface, and where a car is turned on it every day the grit wears to a polish inside a few years. Once smooth it is slick in the first rain, which on a front court that doubles as a drive is the one thing the finish was chosen not to be.
A crack across an exposed slab cannot be filled invisibly, because the filler has no pebble in it. A single line along a joint cut late is cosmetic. Cracks in a web across the middle are fill settling, usually where an outbuilding stood, and the slab has to come out to reach it.
In every finish
Eight things are in every decorative pour and none of them is a line on the estimate. Each is there because a finish shows what is under it as well as what is in it, and a court on a small lot takes more from a surface than a back patio does.
The old concrete goes to the crusher the same day, and the ground is opened where a shed or garage once stood, since fill shows later as a crack.
The aggregate is picked from cured samples, not a chart, because the color of the finished slab is the color of the pebble in it.
A thin lift of crushed base over the native sand, compacted under a plate, so the finish sits on ground that has already proved itself.
4 inches for a patio or a walk, 5 on mesh for a front court that takes a car, and the depths are printed on the estimate you sign.
Surface retarder goes on behind the float and the wash is made the next morning at first light, before the sun sets the paste past washing.
Control joints sawn inside 12 hours along the banded borders, so a crack has a line to follow that the eye reads as part of the design.
A light acid wash lifts the last haze off the stone, then the slab is left to dry out fully before any sealer goes near it.
A dry slab gets its sealer, we walk it against the estimate with you, and the written guarantee is handed over before we leave.
Four finishes
Four finishes a slab can be given here, judged by what a front court on a rented lot does to a surface: bins dragged across it, a car turned on it, and a hose the only cleaning it ever gets. The slab under all four is the same.
| Option | Suits | Grip when wet | Hides | Shows |
|---|---|---|---|---|
| Exposed aggregate | Front courts that take a car | Most of the four | Tire marks, drips, bin scrapes | The rounded river pebble |
| Seeded pebble top | Patios and paths wanted in one color | As good, stone chosen for it | Drips and scuffs | A stone bought for the job |
| Salt finish top | Pool surrounds and shaded walks | Good, pitted like coral | Little, the surface is pale | Small pits in a smooth face |
| Sand finish top | Back patios with no car on them | Good new, polishes under tires | Footprints and dust | A fine grit in one tone |
Broom with a banded border costs least and the seeded pebble most, since the stone is bought and thrown by hand; the two washed finishes sit between them.
Stone and lot
Two things decide a finish here and neither is taste: the pebble in the mix is the ground the town stands on, and a front court on a lot this size is a working surface rather than a lawn.
The aggregate in a truck of ready-mix around here is rounded stone out of the San Gabriel River channel, worked from the pits at Irwindale a few miles north, the same gravel that lies a foot under every lawn in town. Wash the paste off a slab and that stone is what shows, gray, buff and a little brown, and it matches the ground either side of it because it is that ground. A stone trucked in from a quarry in another color never quite does, and a colored coat only sits on the place.
The lot is the second. These streets were cut into small parcels in the 1950s and most of the houses on them are rented, so the front yard is often the only flat ground for a car and the bins, and it is hosed rather than scrubbed. A washed stone surface grips a wet tire, shows no drip and hides a scrape; a smooth colored slab shows all three inside a season. Where the court meets the drive to the street, the stone stops at the property line.
From sample to sealer
Five stages, with the wash the one that sets the finish, made the morning after the pour by the person who chose the stone with you. Nothing about the finish is decided on the day of the pour.
Ismael Duarte measures the area, digs at the corners for old fill and asks what will stand on the slab. The figure is written before he goes.
You choose the finish and the pebble from cured samples at the yard, set the border, and take a morning with no rain in the forecast.
The old slab goes to the crusher, any fill comes out, base goes in under a plate and the border bands are formed to the fall.
Concrete down at first light, floated flat, the border tooled, and the retarder sprayed on the field before the sun gets to it.
The paste is hosed off next morning, joints sawn inside 12 hours, the slab acid washed and dried, sealed, and walked through with the guarantee.
Behind the number
The area starts the figure, the finish moves it and the stone finishes it. A washed slab and a seeded one of the same size are a truckload of pebble apart, which is why nothing is quoted from a photo. Every estimate is measured and written on site.
A front court or a back patio on this grid is usually under 400 square feet, and the side access sets whether the mix is barrowed or pumped.
A court in front of two units takes two cars, so it is 5 inches on mesh with a wider border, and the wash is made in two halves.
Where an ADU has taken the yard, the finish is a path and a strip between walls, pumped over the roof, and the pump is the cost.
A pebble bought for the job and thrown by hand, or a second banded color round the field, is a second delivery and a second crew hour.
The visit and the written figure cost nothing, and the call that fixes a time for it comes within 1 business day. (626) 774-7973 or send us a message.
Send the form or call and someone rings back within 1 business day to fix a time. Ismael Duarte measures the area, opens the ground and writes the figure at your home, and the sample boards go back in the truck when you are done.
Finishes we poured
Three reviews left on Google, Facebook and the BBB, each about a washed or textured finish rather than a plain slab, and each naming the stone, the surface or the morning it was washed.
“Our front yard had gone to dirt with two cars on it and the landlord next door had done the same. Ismael brought pebble samples to the door and we went with the river stone. Washed the morning after the pour, and a year on you cannot see where the cars park.”
“The back patio behind our new unit is a strip 8 feet wide and 30 feet long between two walls. They pumped the mix over the roof, gave it a salt finish so it would not be slick in the shade, and cut the joints along a border band. It looks like it was always meant to be there.”
“The old exposed slab out front was shedding stones by the gate and had gone gray with paste. They took it out, found the old garage fill under one corner and dug that too, then poured and washed the new one at first light. Every pebble is still where it was set.”
Before you book
What moves the figure on a finish, how long a front court is out of use, where the city's line falls, what the guarantee covers and what a washed slab asks of you afterward, answered for a lot here.
The finish, then the stone, then the area. A broomed slab with a banded border is the base case; a washed exposed finish adds the retarder, the early wash and the acid rinse; a seeded one adds a pebble bought for the job and the hands to throw and float it in. Under that, a court that takes a car is poured an inch deeper on mesh than a patio. All of it is measured at your home and written on one sheet.
Nine days before a car goes back on it, and about four before feet do. The old slab is out on the first day, base and forms on the second, the pour on the third at first light, and the wash early on the fourth, the one morning nothing can be walked on. The sealer waits until the slab has dried, and the car waits seven days. On a rented lot that is a week on the street, so the date is set with the tenants.
Yes. Breaking out what is there, hauling it, digging out fill the test holes find and bringing in base are all inside the figure, as are the retarder, the wash, the acid rinse and the sealer. What sits outside it is named at the visit rather than added later: a pump for a yard the barrow cannot reach, a permit if the court meets the walk, a meter box reset flush. The number you sign is the number on the bill.
No. The public walk and the apron between it and the street are city ground, and the standard for both is a plain broom finish at the set thickness, poured on an encroachment permit from Public Works and inspected. So the stone stops at your property line and the apron is broomed to the city's detail. A washed finish inside the line needs no permit, since the Residential Code exempts a slab that is not a floor.
No. Stone popping, haze and a worn sand finish are wear to every policy sold here, so a court that has shed pebble over ten years is the owner's to redo. A policy answers a sudden loss with a cause behind it: a delivery truck that dropped a wheel on the slab, a water main under the court that let go, a tree that came down across it. Photograph it before anything is broken out and speak to the carrier first.
How the slab was built and how the finish was made. The depth, the base, the stone agreed on the sample, an even exposure across the field and joints on the border lines are terms on the estimate, and the slab carries a written workmanship guarantee against defects in how it was built. A sealer left past its life and wear where a car turns sit outside it. A patch washed too deep or too late is ours to put right.
A 3,500 psi ready-mix with the plant's own rounded river aggregate, a surface retarder sprayed at the rate on the drum, and a solvent-based acrylic sealer once the slab has dried. For a seeded finish the pebble is a washed stone bought by the sack and named on the estimate; for a salt finish it is coarse rock salt pressed in and hosed out. Every product is on the sheet so what comes off the truck can be checked.
Only for the measure and the walk-through. The wash itself is done at first light the day after the pour and needs a hose bib and a gate the crew can open, not you. What it does need is the car off the court from the day before the pour to a week after, which on a street here means finding a space, and the bins moved to the side yard for the same stretch. A tenant at the front sets the dates with us at the visit.
Towns we finish in
The eight nearest towns on the list, with the straight-line distance from the office on Peck Road beside each. The stone is chosen from samples at the property before a figure is written.
Four jobs that share a base and a crew with a decorative finish, itemized on the one written estimate, and poured in the same week when they are booked together.
A pattern pressed into the surface instead of a stone washed out of it, on the same slab.
The plain drive from the court to the street, broomed to the city's own detail at the line.
The public walk in front, poured to the city's standard where the decorative finish has to stop.
The plain broomed patio out the back, where the budget goes to size rather than to the finish.
Call or send the form and you hear back within 1 business day. Say roughly how big the area is and whether a car stands on it, and the visit is booked for a day inside the same week, sample boards in the truck.