Liberty San Leandro Concrete & Masonry
Mon–Fri: 7 AM–11 PM, Sat–Sun: 6 AM–10 PM(510) 264-7154Request an estimate

Concrete block walls in San Leandro CA - a wall that stays straight and dry

Planning a block fence or retaining wall, or replacing one that's leaning? We plan the footing and drainage first, so it stands.

Gray block retaining walls enclose a raised gravel terrace, with broad stone steps leading up to it.

What goes into building a concrete block wall in San Leandro?

A concrete block wall in San Leandro is built from concrete masonry, either standing on its own as a fence or holding back soil as a retaining wall. Liberty San Leandro Concrete & Masonry builds both, with the footing and drainage worked out before the first block goes down.

Most block wall calls start with a fence you want for privacy or a slope you want to stop creeping toward the patio. The block is the part you see, but what's under it and behind it decides whether it stays put. We've torn out plenty of walls where someone skipped that part and hoped the mortar would sort it out. It didn't. If the wall is going under a house, that's foundation block wall installation, and if the block is for a grill counter, see outdoor kitchen masonry.

The price mostly follows the wall's length and height, whether it's a fence or a retaining wall, and how much footing and drainage it needs. The schedule mostly turns on the permit, if your wall needs one, because we handle it with the city or the county and don't start until it's issued. Your written estimate lists each part of the job so you can see what you're paying for.

What to settle before a block wall goes up

Before any block shows up, a few choices get made about the wall's type, what holds it up, where water goes and what sits on top, and those choices decide how well it holds up.

  • Fence or retaining wall

    A block fence stands on its own to mark a line or block a view, while a retaining wall holds back soil packed in behind it. They're built differently, so we settle which one you need first.

  • Footing and drainage first

    We plan the footing and the drainage before the first block goes down, because a wall is only as straight as what's under it and as dry as what's behind it.

  • What to compare in a bid

    A block fence takes weather on both sides, so the materials, the design and the workmanship decide how long it lasts. Put those side by side when you compare bids, not just the total.

  • A cap on top

    A coping, the cap along the top course, keeps water from getting down into a block fence and can dress it up. Concrete brick, cast stone, brick and natural stone all work, and we cap our walls so water stays out.

  • Backfill waits its turn

    Soil should go behind a new retaining wall only once the masonry has gained enough strength or the wall is braced. Heavy equipment should stay back from the top by at least the wall's height.

Block wall questions we hear

What is the best way to support a concrete block fence?

A block fence is usually held up one of three ways: a continuous footing under its full length, panels spanning between pilasters, or returns and curves that brace it. Pilasters are thicker block columns, each set on its own footing pad, so the design you pick changes the footing work. We'll walk the line with you and suggest what suits your yard.

Do I need a permit for a block wall in San Leandro?

Usually, yes, since San Leandro's Building Official issues permits for any structure except rear yard setback fences up to 7 feet and some retaining walls up to 4 feet. Exempt walls still have to meet the city's code and other city laws, and the code bars keeping any structure built or altered without the permits it needed. If your wall needs one, we take care of it with the city or the county, whichever covers your address, and the city's building permit page says where to send questions. The city also reminds anyone digging to call 811 first, and a footing trench counts.

Are cracks in a concrete block wall a structural problem?

Shrinkage cracks aren't a structural concern. Walls above ground usually get control joints, planned breaks that give the block a tidy place to crack, though a wall with enough horizontal reinforcement may not need them. If you're not sure what kind of crack you've got, I'll come look and tell you.

How do I keep water from building up behind a retaining wall?

Give the water a way out, because a block retaining wall needs drainage to keep it from piling up behind. That usually means through-wall drains, small openings near the base, and where heavy, long rains are expected, a continuous drain along the back as well. We put the drain on the estimate so you can see it.

How much does a concrete block wall cost in San Leandro?

We price each wall after seeing the site, because no two have the same length, height and ground to build on. Tearing out an old wall, tight access for block and concrete, a drain along the back and the cap you choose all move the number. The estimate breaks each piece out so you can line it up against other bids.

What should a contract for a block wall include in California?

California law says a home improvement contract has to carry certain information, notices and disclosures that protect you. Any change after you sign has to be in writing and tell you about your right to cancel, so if the plan shifts mid-job, expect it on paper, not a handshake.

Why San Leandro homeowners call Liberty San Leandro Concrete & Masonry for block walls

You get the owner, not a salesman, and a straight answer about what your wall needs, even when that's less than you expected.

  • I come out myself

    I do the visit myself, so the person who measured your wall is the one you talk to.

  • In business since 2021

    Five years in, most of our calls still come from neighbors who saw our work on a house nearby.

  • Licensed and insured

    Ask about it when I come out, and compare it with every other bid on your table.

  • Satisfaction guaranteed on every job

    That goes for a short garden wall as much as a long retaining wall across the back.

  • A straight answer on old walls

    I'll tell you if a cracked wall can wait, so call (510) 264-7154 and I'll come take a look.

Call before you buy the first block

The footing and drainage get decided in your yard, not at the block yard, so call (510) 264-7154 and we'll look at the ground with you.

What happens when you call about a block wall in San Leandro?

We plan a block wall around your yard and how you use it, so the footing, drainage and cap are settled on paper before anything gets dug.

  1. You get in touch

    Call (510) 264-7154 or use the form, and tell us whether it's a fence or a retaining wall and roughly how long and tall.

  2. I come out

    I come out to look at the spot, measure the run and take photos, and we talk through the footing, the drainage and the cap.

  3. Your written estimate

    You get a written estimate that spells out each part of the job. If a permit's involved, we have it in hand before we start.

  4. We build and walk it

    Our crew builds the wall with me on site, we clean up, and I walk the finished job with you.

(510) 264-7154

Call (510) 264-7154