Retaining wall questions, straight answers

Timber and basic block sit at the low end. Natural stone and engineered segmental systems sit well above them. Taller walls, steep site access, and drainage systems push the total higher. The crew's on-site estimate sets the written price.

You contract and pay the crew you hire, directly, for the retaining wall work. Wall Pro SD sets no prices and takes no cut of the job. Ask the crew what it charges for the site visit when you book it, because that is the crew’s call and not ours to state.

Yes. Single-section repairs, partial replacements, and drainage-only fixes are all common. You do not have to redo the entire wall system at once.

Concrete block and CMU are strong and economical, good for utilitarian walls. Natural stone is durable and attractive but more labor-intensive. Engineered segmental systems like Allan Block use interlocking units with geogrid reinforcement and are the standard for taller walls that need structural performance and a clean look.

Not always. A slight lean caused by drainage backup may stabilize after drainage is fixed and the wall is re-plumbed. A wall that has lost its footing or cracked through the face usually needs full replacement. The on-site inspection tells you which it is.

Critical. Water that has nowhere to go builds hydrostatic pressure against the back of the wall, and drainage is the part that relieves it. Every wall we match needs open-graded aggregate and perforated pipe behind it, with a proper outlet so water exits before pressure builds.

In the City of San Diego, yes once the wall is over three feet measured from the top of the footing to the highest point on the wall. A permit is also required at any height if the wall carries a surcharge like a driveway or fence, or retains a slope steeper than 1.5 horizontal to 1 vertical. Tiered walls are measured together, and need a permit once the height from the lowest tier top of footing to the top of the highest tier exceeds six feet, or when one tier footing crosses the slope stability plane of the tier below. Unincorporated county areas use a different test and every other city sets its own, so confirm with the building department for your address. Your crew handles the permit when the scope calls for one.

Most residential walls are a matter of days on site rather than weeks, and larger terraced or commercial systems run longer. Length, height, access and whether the job needs a permit and plan check are what move the schedule. Your crew gives you the dates after the site visit, and it schedules emergency stabilization around how fast the wall is moving.

Usually. Grading behind and around the new wall is part of the scope on most hillside projects. Your crew handles cut, fill, compaction, and finish grade as part of the retaining wall job.

No. Wall Pro SD is a referral service, not a licensed contractor. Any crew you hire holds its own license, verifiable at cslb.ca.gov. We match you with licensed local wall crews. The crew you hire does the work, sets its own price and puts it in writing.

Every crew we match is an independent licensed contractor. Ask for the license number and check it yourself with the CSLB Check A License tool at cslb.ca.gov. Wall Pro SD holds no contractor license and does not perform the work.

You contract and pay the crew you choose, directly, for the retaining wall work. Wall Pro SD sets no prices and takes no cut of the job. Ask the crew what it charges for the site visit when you book it, because that is the crew’s call and not ours to state.