Goldenwest Huntington Beach Concrete pours the footing and floor a unit, an addition or a converted garage stands on, one slab whose edge and steel are set by what the soils report finds under the lot.
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How a slab is built here
A slab foundation is the footing and the floor of a building poured as one piece, a 4-inch floor over a sealed gravel bed with its edge turned down 12 inches into firm ground. Here the drawing for it starts with a map. The California Geological Survey has zoned the low ground around the Harbor, along the Bolsa Chica and by the river mouth for liquefaction, and the slab drawn for the sand behind Yorktown Avenue is not the one an engineer draws for a lot inside that line.
Goldenwest Huntington Beach Concrete was started in 2017 by Scott Ferreira, after 19 years on crews across coastal Orange County, and he reads every lot against that map before a figure is written. Most of the slabs we pour go under a garage conversion or a unit at the back of a 1960s tract lot, where the garage floor was poured thin with a fall to the door and nothing under it. The rest go under additions off houses whose slabs have stood on the dune sand for fifty years.
Every slab is built to the California Residential Code under a CSLB C-8 license, with liability insurance on every job. A slab under a room needs a building permit from the City's Community Development Department, and inside the mapped zone the Seismic Hazards Mapping Act asks for a site investigation first. We meet the inspector at the trench, the steel and the pour, and the finished slab carries a written workmanship guarantee against defects in how it was built.
Before the framing
A 1960s garage floor here was poured thin, with a fall to the driveway and nothing under it but sand. Convert the garage into a unit and that floor is out of level across the room, with no vapor sheet under it and no steel in it. The city inspects it as a foundation, and it is none.
A detached unit on a tract lot stands on ground nothing has been built on since the bean fields, so there is no old footing to inherit and the slab is the whole foundation. The plan shows a rectangle. How it is built depends on whether the lot is mesa sand or zoned low ground.
An addition off a house whose slab sits an inch high at one corner is joining a foundation that has already moved, so the new slab is doweled only as deep as the old edge can hold. Near the Harbor that lift is usually water under one side, and the new slab is drawn to stand alone.
A floor that sweats on a marine layer morning has no vapor retarder under it, and where the water sits a few feet down the sheet is what keeps the room dry. Flooring lifts, the drywall stains at the base, no coating holds. The floor comes out and is poured again over a sealed bed.
In every slab
Eight things are in every slab we pour and none is a separate line on the estimate. Each answers something this ground does, whether it is dune sand that runs, low ground the map has zoned, or water that stands a few feet under the pad.
A garage floor or a settled slab is sawn, broken out and hauled the same day, down to the sand, so the new slab never sits on a patch of the old.
The lot is checked against the seismic hazard zone map and probed, so a slab on zoned ground is drawn by an engineer and one on the mesa is not.
Sand is compacted in lifts and crushed base laid over it, high enough that the floor stands at least 6 inches above the finished ground.
A vapor retarder taped at every lap over 4 inches of gravel, the part nobody sees and the one that keeps a floor on wet ground dry for good.
The thickened edge goes 12 inches into firm ground round the whole outline, deeper where the drawing says, and is formed where sand will not stand.
Bars held at mid-depth on chairs and half-inch anchor bolts pushed into the wet edge at 6 feet, within a foot of every plate end.
Forms stripped, the perimeter backfilled and graded to fall away, the spoil hauled, so the framer walks onto a clean pad the week after.
We walk the slab with you against the estimate, edge depth to bolt spacing, and the written guarantee is handed over before we leave.
How it can be built
Four ways a slab is built under a room or a unit here, set against the ground the report describes and what the slab has to meet. The bed, the sheet and the bolts are the same in all four, so the table is about the edge and the steel in it.
| Option | Where it is drawn | Steel in it | Edge depth | Framing at |
|---|---|---|---|---|
| Thickened-edge slab | Dune and terrace sand inland of the bluff | Number 4 bar at 18 inches each way | 12 inches, one pour | 7 days after the pour |
| Post-tensioned slab | Low ground inside the liquefaction zone | Half-inch cables stressed inside a week | Edge beam to the engineer's sheet | Once the cables are stressed |
| Slab doweled to the house | An addition off a 1960s slab house | Bars epoxied into the old edge at 24 inches | 12 inches, matched to the old | 7 days after the pour |
| Slab on a stem wall | A downtown lot with a raised wood floor | Footing and wall bars, then floor mesh | Footing 12 wide, wall to floor height | A week after the second pour |
The thickened-edge slab costs least and the post-tensioned most, the other two between. Which row a lot gets is decided by the map and the drawing, not by us.
Ground and map
A slab here is designed before it is dug. The soils report says whether the lot lies inside the mapped liquefaction zone and how close the water sits under it, and those two answers decide the slab.
The city stands on two kinds of ground. The mesa from Seacliff past Goldenwest Street and the tracts inland of it sit on old dune and terrace sand, which drains, does not swell and bears a one-story unit on the code's minimum footing once compacted. The low ground is different. Around the Harbor, along the Bolsa Chica and in the southeast tracts by the Santa Ana River the lots are marsh fill with water a few feet down, and the California Geological Survey has zoned it for liquefaction.
The line between those two grounds is what the drawing follows. On the mesa a thickened-edge slab on a compacted pad is the answer, and on zoned ground the Seismic Hazards Mapping Act requires a site investigation, which the engineer usually answers with a post-tensioned slab and a dewatered edge. One more thing runs under both. The city grew across the Huntington Beach Oil Field, so a capped well inside the outline is checked against CalGEM's records before the slab is set.
From call to cure
Five stages, the same crew at each, and the person who reads the lot against the map is the person standing on the pad at the pour. The permit and any engineer's sheet are in hand before the saw starts.
Scott Ferreira checks the lot against the hazard map, probes the sand under the outline and shoots the grade. The figure is written before he goes.
You take a date, and the plan goes to the City with a soils report where the map asks for one. A well on the lot is checked against state records.
The old floor is broken out, the edge dug or formed, the pipes laid and inspected, and the pad compacted in lifts until it proves under a plate.
Gravel, the taped vapor sheet, bars on chairs and bolts on their layout, inspected, then poured in one morning and screeded to the framer's line.
Joints sawn the same afternoon, the slab kept damp seven days, forms off and the perimeter graded away, the paperwork handed over as we leave.
Behind the number
The map starts the figure and the water finishes it. Two slabs of one footprint can be different foundations once the zone line and the water table are known, so nothing is quoted from a plan. Every estimate is measured and written on site.
A room off a slab house on the mesa is the plainest job, doweled into an edge that has not moved. That edge is exposed before any figure is set.
The old floor comes out, the pipes go in and the slab is inspected as a dwelling's foundation. The side gate decides pump or barrow.
Fill over marsh with water a few feet down means an engineer's slab, a dewatered edge and a pad raised above the yard, the largest of the four.
Cables, a stressing crew and a deeper edge beam are the premium version, and the report chooses them rather than us. The sheet names every one.
The visit and the written figure cost nothing, and the call that books a time for it comes within 1 business day. (657) 312-3698 or send us a message.
Send the form or call, and someone rings back within 1 business day to fix a time. Scott Ferreira checks the lot against the map, probes the ground and writes the figure at your property, and you are free to put it in a drawer.
Slabs we poured
Three reviews left on Google, Facebook and the BBB, each about a slab foundation rather than a patio or a driveway, and each naming the ground it was poured on.
“We converted the garage on our Yorktown tract house into a unit for my mother. The old floor sloped to the door, so they broke it out, laid the sheet and gravel and poured the new slab with the bolts set in it. The framer was on it eight days later and the steel passed first time.”
“Our lot in the Harbor is inside the liquefaction zone, which I learned when Scott Ferreira showed me the map on the visit. The engineer drew a post-tensioned slab, they dewatered the edge, poured it in one morning and stressed the cables six days later. The unit has been up two years.”
“We added a family room off the back of a 1968 slab house near Brookhurst. The old edge was exposed, the bars epoxied into it every two feet, and the new slab poured level with the old floor to the quarter inch. Three winters on there is no line at the join and the floor has not moved.”
Before you book
What moves the figure, how long the framer waits, what the city permits and inspects, what the report changes, and what is guaranteed once the forms are off, answered for a slab on a lot here.
Which slab the ground calls for, before the size of it. A thickened-edge slab on the mesa sand is the plainest job here, and a post-tensioned slab inside the liquefaction zone is a different foundation with a stressing crew behind it. After that come what has to come out first, whether the concrete arrives by chute or by pump, and how many pipes run under the floor. All of it is measured at your lot and written.
Seven days after the pour for a thickened-edge slab, and for a post-tensioned slab once the cables are stressed, inside the same week. Breaking out an old floor, digging the edge, laying the pipes and building the pad are three to four days before that, with the pipes and the steel inspected before the concrete comes. A soils report, where the map asks for one, adds to the start date and not to the days on site.
Yes, the trenching, the bedding and the backfill around them, and the inspection before they are covered. The pipes themselves are run by your plumber to the plan, in the same week, so nothing is dug twice. What sits outside the figure is named at the visit rather than added later, usually the soils report the map may call for, or a capped well inside the outline. The number you sign is the one on the bill.
Yes, always, because a slab under a room is a dwelling's foundation and not flatwork. The permit comes from the City's Community Development Department, and the inspector comes for the trench and steel, for the pipes before they are covered, and for the pour. Inside the seismic hazard zone the Seismic Hazards Mapping Act requires a site investigation with the application. We file it and meet every inspection.
Almost never for settlement on its own. A slab that has dropped at one corner because the sand washed out under it is treated as ground movement, which policies exclude, and so is the slow lift from water under a floor poured without a sheet. The exception is a sudden covered event, most often a burst supply line that carried the base away. Photograph the floor before it is broken out, and ask your carrier first.
How it was built. The compacted pad, the sheet under the floor, the edge depth on the drawing, the steel and the bolt spacing, with those terms printed on the estimate before you sign. It is a written workmanship guarantee against defects in how it was built. Ground movement in a shake, flooring laid before the slab has dried, and a pipe nobody disclosed sit outside it. Where the fault is ours we put it right.
A 3,500 psi ready-mix batched the morning it is poured, number 4 bar at 18 inches each way on chairs, or half-inch tensioning cables where the engineer draws them, and half-inch anchor bolts at 6 feet along the edge. Under the concrete is a vapor retarder over 4 inches of gravel, and under that the compacted pad. Near the water the mix is kept dense so salt never reaches the bar. Each is named on the estimate.
Only for the visit at the start and the walk-through at the end. In between the crew needs water, an unlocked gate and a path from the street to the pad, and on pour morning the truck or the pump stands in the driveway for about three hours. If the slab is behind the house the concrete comes through the side gate by hose, so cars come off the drive that morning. Inspections are booked by us and need nobody home.
Towns we pour in
The eight nearest towns on the list, with the straight-line distance from the office on Edinger Avenue beside each. Every slab is measured at the lot and checked against the map before a figure is written.
Four jobs that tend to be booked with a new slab or in place of it, on the same drawings, by the same crew, and itemized on the one written estimate.
The footing and stem wall for a raised wood floor, where a downtown lot has one to match.
Pads and strip footings for a deck, a carport or a post, poured on the same day as the slab.
A garage that stays a garage, repoured level and sealed rather than rebuilt as a dwelling floor.
The saw cut through an old floor for a pipe trench or a doorway before the new slab is formed.
Call or send the form and you hear back within 1 business day. Say what the slab is for and roughly where on the lot it sits, and the visit can be booked for a day inside the same week, map and probe in hand.