Serving Mission Viejo, CA and surrounding areas.(657) 390-1824
Saddleback Mission Viejo Concrete

Concrete in Fountain Valley, CA, for the 1960s Lot Being Added To

Saddleback Mission Viejo Concrete pours addition slabs, wider drives and boat pads in Fountain Valley, up the 405 from Mission Viejo, with the estimate measured and written at your home, free.

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New concrete addition slab behind a 1960s tract house in Fountain Valley
New concrete addition slab behind a 1960s tract house in Fountain Valley

Why a Fountain Valley Footing Is Not a Hillside One

Fountain Valley is flat and wet under. It sits on the Santa Ana River plain over silt and sand with water a few feet down, and most of it is shaded for liquefaction on the state's seismic hazard map.

A hillside footing in Mission Viejo is probed for fill and dug into cut. A footing here has nothing firm to reach, so it is sized for the ground it has, wider and with more steel, and the slab it carries is poured over a vapor barrier, because the damp under this ground comes up through a bare slab and lifts a floor finish inside a year. The flatwork has the same problem too. A slab with no fall holds water on a lot with no fall.

So an addition slab in Fountain Valley is a thickened edge footing on compacted base with a 10 mil barrier under it, its steel tied to the drawing the city stamped, and the inspector sees the trench before the pour. A drive or a side-yard pad is pitched a quarter inch to the foot to the gutter or an area drain, on 4 inches of gravel, 5 inches thick where the boat will sit. The block wall on the lot line stays where it is, and the pad is jointed clear of it so the two never fight.

The Work a Fountain Valley Lot Takes On Now

Fountain Valley's tracts went up in the 1960s and 1970s on flat lots and the houses are being made bigger, not replaced. The work here is the slab for the addition, the drive for the third car and the pad for the boat.

Newly poured widened concrete driveway at a Mission Viejo tract home

Concrete Driveway Building

The third car is what brings us to a Fountain Valley driveway, parked on the lawn beside the two-car drive the tract came with. We widen the drive across the lawn on 4 inches of compacted gravel, pitch it to the gutter, and widen the approach at the curb through Public Works.

Newly poured concrete patio behind a Mission Viejo tract home

Concrete Patio Construction

A patio in Fountain Valley is poured with the addition, because the room that went on the back of the house took the old slab with it. We pour the new one against the addition's footing on 4 inches of gravel, isolate the joint, and pitch it to a drain piped to the street.

Finished ashlar slate stamped patio behind a Mission Viejo tract home

Stamped Concrete Services

Stamped concrete in Fountain Valley goes on the front walk and the widened drive, where a plain gray apron across the old lawn reads as a parking lot. We cast an ashlar in a 4 inch pour, colored in the mix to sit with the tract's stucco, and seal it at 28 days once cured.

New broom-finished concrete entry walk climbing to a Mission Viejo door

Concrete Sidewalk Building

Walks in Fountain Valley are the city's along the street and yours from the drive to the door, and the new one runs across the lawn to the side gate, for the boat. We compact the silt, pour 4 inches jointed every 5 feet with a fall to the planting side, and broom it.

Newly poured sealed concrete garage floor in a Mission Viejo home

Garage Floor Concrete

A 1960s garage floor in Fountain Valley is being asked to be a room, a gym or a shop, and it is cracked at the door where the flat drive sent rain under it. We break out the front run, pour 4 inches over a vapor barrier with the fall to the door, and trowel it flat for a coating.

Exposed aggregate walk with a smooth border at a Mission Viejo home

Decorative Concrete

Decorative work in Fountain Valley is the side-yard pad and the walk to it, poured as exposed aggregate so a wet trailer tire and a bare foot both grip it. We seed river stone into a 4 inch pour, wash it proud that afternoon, and seal it a month later once the slab has dried out.

New concrete retaining wall holding a rear slope at a Mission Viejo home

Concrete Retaining Walls

No slope needs holding in Fountain Valley, so a wall here is the stem of an addition or the planter along a widened drive, rarely over 3 feet. We pour it on a footing that sits below the planter's fill with a pipe behind it, and it goes to the city for a permit only over 4 feet.

New polished concrete floor inside an addition at a Mission Viejo home

Concrete Floor Installation

Interior slabs are the job in Fountain Valley, the room on the back and the ADU on the deep lot, drawn, plan checked and inspected. We trench the thickened edge to the stamped plan, lay a 10 mil barrier over the base, tie the steel for the inspector, and trowel the floor flat.

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The Saddleback Mission Viejo Concrete crew mid-pour at a home in the Mission Viejo area

Fountain Valley Is a Grid at the End of the 405

Fountain Valley is about 23 miles from our yard on La Paz Road, up the 5 to the 405 and off at Brookhurst Street, which is 40 minutes at 6 in the morning and the farthest we go in Orange County. Plans go to the City of Fountain Valley Building Division at City Hall on Slater Avenue, and a wider approach or a pad that touches the parkway takes an encroachment permit from Public Works as well. We file both, and the inspector sees the footing trench before the concrete arrives.

The tracts between Euclid Street and Magnolia Street and from Warner Avenue to the 405 are single-story houses of the 1960s on lots sized for the house of the day, with a two-car garage, a block wall on three sides and a builder's patio at the back door. Mile Square Park sits in the middle on the old Navy airfield. Fifty years on the house has a second story, the garage has a third car outside it and the side yard has a boat, and each of those wants a slab the lot was not poured with.

The ground is river silt and sand with water not far down, which is why the builders set the houses on slabs at grade, why the state map shades most of the city for liquefaction, and why a footing here is drawn rather than dug by eye. The Santa Ana River runs down the east edge in its channel and the storm drains lead to it, so a pad's runoff has a route once the slab is shaped to use it. The sea air 4 miles off keeps a summer pour cooler than one in Mission Viejo.

How a Fountain Valley Addition Slab Runs

Four stages on one crew, with the plan check started the week the estimate is signed, because on an addition the city's review takes longer than the pour. Nothing is priced until the trench line has been walked.

1

Measure and lay out

Trevor Lindqvist measures the footprint, shoots the grades with a level, finds the route to the gutter and writes the figure on site.

2

Plan check and permits

We file the foundation plan with the City of Fountain Valley Building Division and the encroachment permit with Public Works.

3

Trench, base and barrier

The footing is trenched to the plan, the base is compacted, the 10 mil barrier goes down and the steel is tied for the inspector to see.

4

Pour and cure

The slab is poured in one morning, pitched where it is flatwork and level where it is a floor, jointed that afternoon and kept wet for 7 days.

A Free Estimate, Measured in Fountain Valley

Call or send the form and you hear back within 1 business day. The visit is free, the figure is written on site before we leave, and we are in Fountain Valley most weeks, between Euclid Street and the river.

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Reviews

What Fountain Valley Homeowners Say After the Job

Reviews on Google, Facebook and the BBB from homeowners across the towns we reach from Mission Viejo. Fountain Valley is one of them, and the footings behind them are the ones described above.

Google review

“Our driveway in Aegean Hills had dropped two inches on the fill side of the pad. They probed it, found the soft half, dug it deeper and packed the base in lifts. They poured 720 square feet at 5 inches, cut the joints across the slope that afternoon, and two winters on nothing has moved.”

Facebook review

“The wall holding our back slope in Laguna Niguel leaned a little more every winter. They took it down, dug the footing 18 inches into hard ground, set drain rock and a pipe behind the new wall and poured it in a day. The first storm since ran clear out of the drain, not over the top.”

BBB review

“Our pool deck in Lake Forest was the original 1990s one and had lifted at the coping. They cut it out, set an expansion joint around the pool, poured 480 square feet with a salt finish and had it walkable in two days. Bare feet in August and it stays cool enough to stand on.”

Dana W. of Lake ForestPool deck · BBB · 2026

Fountain Valley Questions, Answered Once

What we are asked on a Fountain Valley lot before a job is booked, on what moves the estimate for an addition slab, which counter signs the permit, the wet ground and how long it takes.

(657) 390-1824
  • What moves the cost of an addition slab in Fountain Valley?

    The footing, before the floor. A thickened edge sized for wet silt takes more concrete and steel than the same footprint on a hillside cut, and the plan check adds drawings and a soils question the city may ask. After that it is the barrier, the size of the pour and whether the old patio comes out first. Every estimate is measured and written on site, with the trench line walked before a number goes on paper.

  • Do I need a permit to widen my driveway in Fountain Valley?

    For the approach, yes, and for the drive itself, no. The drive is flatwork on your own lot and the California Residential Code exempts it, but the apron between the sidewalk and the gutter is the city's, and a wider one for a third car goes to Public Works as an encroachment permit. An addition slab or any footing goes to the Building Division on Slater Avenue with a plan. We file both and meet the inspector.

  • Do you really come out to Fountain Valley from Mission Viejo?

    Yes, about 23 miles, up the 5 and the 405 to Brookhurst Street, and 40 minutes at 6 in the morning before the freeway fills. It is the farthest Orange County town we cover, so a job here is booked in whole days and a two-day job on consecutive days. The crew is on your street before 7, and the mixer is ordered from a plant on the west side rather than following us up the freeway.

  • Why does a Fountain Valley floor need a vapor barrier?

    Because the water is a few feet down and rises. Fountain Valley sits on river silt and sand with a shallow water table, the ground that fed the artesian springs the city is named for, and a slab poured straight on it wicks damp through the concrete and under a floor finish, lifting plank. A 10 mil barrier under the slab stops it, and the base under the barrier is compacted so the slab never bridges a soft spot.

  • How long does an addition slab take in Fountain Valley?

    Three days on site once the permit is in hand, and the plan check sits in front of that. The footing is trenched and the base compacted on the first day, the barrier and the steel go in on the second and the inspector signs the card, and the pour is the third morning. Framers can be on it after 7 days, and full strength comes at 28. A drive or a pad is two days, and cars stay off it for 7.

  • Which towns near Fountain Valley do you also cover?

    Westminster, across the northern boundary, from the same yard on La Paz Road. Huntington Beach, Costa Mesa, Santa Ana and Garden Grove are around Fountain Valley on the other sides and are not on our list, so a lot across the river or past the Huntington Beach line is one we will say no to on the phone. If your street is on the Westminster line, call and we will say which page is yours.

The Towns Next to Fountain Valley

Westminster shares Fountain Valley's northern boundary and is the one neighbor of it we also cover, from the same yard on La Paz Road. If your street sits on the Westminster line, Westminster's page is the other one to read.

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Need Concrete Work Done in Fountain Valley?

Send the form and we call back within 1 business day to book the visit. The measure and the written figure are free, and every job carries a written workmanship guarantee.