Long Beach · Masonry Services
Retaining Walls
Concrete, block, timber and natural stone retaining walls, engineered for the grade and drained so they stay standing.
Retaining Walls · Long Beach
What A Retaining Wall Has To Do
A retaining wall has one job, which is to hold back soil that would otherwise move, and two things decide whether it does that for fifty years or five. The first is the footing, which has to be sized against the height of the wall and the soil it is actually sitting in rather than a number off a chart. The second is drainage, because saturated soil behind a wall pushes with roughly twice the force of dry soil and no wall is designed for water it was not expected to hold. We build concrete retaining walls, block retaining walls, timber retaining walls and hillside retaining walls in natural stone, and every one of them gets gravel backfill and a perforated drain pipe as standard. Where the wall is also going to be a garden feature we detail the cap, the joint profile and the face texture with you before the footing is poured, because those are the parts you look at every day. We are a Long Beach masonry contractor working the harbor cities daily, and hillside terracing above Signal Hill and Bixby Knolls is a large share of what we do.
Why Go With Us For A Retaining Wall
Retaining walls fail in slow motion, and by the time a lean is visible the fix is a rebuild rather than a repair. We size footings off soil we have actually dug into, place steel at the spacing the engineer specified rather than the spacing that goes quickly, and grout cells solid where the design calls for it. The drain pipe and gravel go in on every wall we build, not just the ones where a client asked. That discipline is the same one we bring to concrete and to block walls on commercial masonry jobs, and it is exactly what disappears from a quote priced to be the cheapest in the pile.
- Test holes dug before pricing anything over four feet, because Signal Hill and Carson both sit on ground that is not what it looks like.
- Engineered drawings arranged and the permit filed by us, with the inspection scheduled on our time rather than yours.
- Gravel backfill, filter fabric and perforated drain pipe on every wall as standard, itemised in the quote.
- Block, poured concrete, timber and natural stone all built in-house, so the recommendation fits the slope rather than our stock.
- Weep holes, control joints and cap detail worked out before the footing goes in, not improvised at the end.
Reasons To Build A Retaining Wall
A retaining wall earns its cost in a handful of clear situations:
The slope is taking your yard away
Soil creeps downhill every winter whether you watch it or not. On the Signal Hill grade and the north Long Beach rises, a terraced block wall turns an unusable pitch into two flat, planted levels and stops the erosion that has been filling your patio drain with mud.
A driveway or structure sits above the grade
Any load above a wall is a surcharge, and a surcharge changes the engineering completely. Walls holding a driveway, a garage slab or a neighbouring foundation need designed reinforcement, not a standard detail, and that has to be established before anything is priced.
The existing wall is leaning or cracked
A wall bulging at mid-height or cracking in a stair-step pattern is telling you water is trapped behind it. Left alone it will keep going. Sometimes it can be drained and repaired; often the honest answer is that it was built without a footing and needs replacing.
You want usable flat ground you do not have
A stepped hillside retaining wall is usually the cheapest way to add a level patio, a lawn or a pool deck to a sloping lot. Once the terraces exist, pavers or a poured slab turn them into somewhere you actually go.
You need a raised planter or garden wall
Low block or brick garden walls hold beds at a workable height and give a yard its structure. Under three feet they are straightforward and rarely need a permit, and they can be faced in brick, stone veneer or stucco to match the house.
Water is running toward the house
Where a grade falls the wrong way, a retaining wall combined with a re-graded swale and a drain line moves surface water away from the foundation. Doing that as one job costs far less than repairing a foundation later.
Send a photo of the slope and roughly how long the run is, and we will come out and price it. Call: (562) 379-4372
How We Work
Site walk, samples, engineering and permit, then build. One crew chief from excavation to cleanup.
1. Site walk, levels and test holes
We shoot the grade, measure the run and the retained height, and dig test holes to see what the soil is actually doing. On anything over four feet or carrying a surcharge, that is also when we establish whether the job needs a soils report before an engineer can stamp it.
2. Engineering, permit and excavation
We arrange the engineered drawings, file with Long Beach or the relevant city, and book the inspections. Then we excavate to the designed depth, form and pour the footing with the vertical steel set at spacing, and let it cure before a single block goes on.
3. Build, drain and cap
The wall goes up course by course with horizontal steel and solid grout where specified, weep holes at the base, then filter fabric, gravel backfill and perforated pipe behind it before any soil goes back. Last comes the cap, the pointing, a wash down and a walk-through with you.
Types Of Retaining Wall We Build
Which one suits your slope depends on the retained height, the soil and how you want it to look:
Concrete retaining walls
Poured reinforced concrete is the strongest option and the one engineers reach for on tall walls and heavy surcharges. It gives a continuous monolithic face with no joints for water to find, and can be board-formed, sandblasted or faced in stone veneer afterwards. Expect 50 to 100 years of service.
Block retaining walls
CMU block walls with grouted cells and rebar are the workhorse of Southern California retaining, and the best value at typical residential heights. Available in precision grey, split face, slump stone or ready to take a stucco or brick face. Life expectancy 40 to 60 years.
Block walls and freestanding walls
Not every wall retains. Property-line block walls, privacy walls and screen walls still need a footing, steel and pilasters sized for wind and seismic load. Six feet is the usual point where a residential permit kicks in, and we file it as part of the job.
Timber retaining walls
Pressure-treated timber with deadman anchors is the least expensive way to hold a low bank and suits informal and rural-feeling yards. Be realistic about lifespan: 15 to 20 years even when built well, because the wood is in permanent contact with wet soil.
Hillside retaining walls and terracing
On a steep lot, two or three shorter stepped walls usually beat one tall wall on both cost and engineering, and they give you planting shelves between the levels. This is the most common brief we get in Signal Hill and the north Long Beach hills.
Natural stone retaining walls
Mortared natural stone, or a structural core faced in stone, gives the longest life and the best appearance of any option. It is the premium choice and it is worth it on a wall you will look at daily. See stone masonry for the full range of stone we work in.
What Affects the Cost of Retaining Walls
Retaining wall installation runs roughly $25 to $75 per square foot of wall face. Where you land inside that depends on:
- Retained height. Cost per square foot climbs with height because the footing gets wider and deeper and the steel gets heavier. Anything over four feet requires engineering, which is a step change rather than a gradual increase.
- Material. Block is the most affordable; poured concrete sits above it; natural stone is the premium end. Timber is cheapest to build and shortest lived.
- Surcharge above the wall. A driveway, structure or second wall bearing on the soil behind changes the design and the reinforcement, and it is the most common reason a quote comes in higher than expected.
- Excavation and disposal. How much soil comes out, whether it can stay on site, and whether a machine can reach the work or it all moves by hand.
- Drainage complexity. Gravel and pipe are standard. Tying into an existing storm line, running to daylight across a neighbour’s grade or adding a sump is extra scope.
- Demolition. Breaking out and hauling a failed wall before the new one starts is real cost on its own.
We quote flat-rate per square foot of wall face after the site walk, with excavation, footing, steel, drainage and cleanup inside the number. Where the wall is one part of a bigger yard, we will price the concrete and outdoor kitchen work in the same visit so the whole thing runs on one permit.
Frequently Asked Questions
How much does a retaining wall cost per foot?
Retaining wall installation ranges from $25 to $75 per square foot depending on material. Concrete block walls are the most affordable, and natural stone retaining walls are the premium end. Walls over 4 feet require engineering and cost more.
What type of retaining wall lasts the longest?
Poured concrete and natural stone retaining walls last 50 to 100 years or more. Concrete block walls last 40 to 60 years. Timber retaining walls have the shortest lifespan at 15 to 20 years because the wood sits in permanently damp soil.
Do retaining walls need drainage?
Yes. Every retaining wall needs proper drainage behind it. Without it, water pressure builds up and can cause the wall to lean, crack or collapse. We install gravel backfill and drain pipe on every retaining wall project as standard rather than as an option.
When does a retaining wall need a permit?
In most of the cities we work in, retaining walls over 4 feet measured from the bottom of the footing need a permit and engineered drawings. So does any wall of any height carrying a surcharge, meaning a driveway, structure or second wall bearing on the soil behind it. We file the paperwork and meet the inspector as part of the job.
Can a leaning retaining wall be repaired?
Sometimes. If the footing is sound and the problem is trapped water, excavating the back, installing proper drainage and re-anchoring can save it. If the wall was built without a real footing, which is common on older DIY walls, replacement is the honest answer. We will tell you which one you have got before you spend anything.
Planning masonry work in Long Beach?
Tell us what you are building or what has failed, and we will come out, walk the site and give you a free estimate in writing.
Or call us now: (562) 379-4372