LANDSCAPING

Retaining Wall Construction in Wenatchee & East Wenatchee, WA

Hillside lots above Wenatchee and across East Wenatchee gain usable yard the same way: by holding the grade with a wall that was engineered for the load behind it. We build block, boulder, and terraced walls with the base and drainage that keep them standing.

What the wall is actually holding

A retaining wall carries the weight of the soil behind it plus whatever water is moving through that soil. On a dry day the load is manageable. During spring runoff or after a heavy irrigation cycle, saturated ground can double the pressure on the back of the wall.

So the first thing we look at is the slope above it, where water enters the hill, and what is sitting on the ground up top. A wall under a driveway is a different structure than a wall behind a flower bed.

Base, backfill, and drainage

We excavate below the first course, compact a crushed rock leveling pad, and set the base block dead level, because every course above copies whatever that first one does. Wall units are stepped back or pinned per the manufacturer's spec and geogrid is added into the backfill where wall height calls for it.

Behind the wall goes free-draining rock and a perforated drain line daylighted to a safe outlet. That is what keeps hydrostatic pressure and winter frost from pushing the face out.

Terracing versus one tall wall

On steeper properties, two shorter walls with a planted bench between them often outperform one tall wall. Terraces break up the load, look less like a fortress from the street, and give you planting space that is easier to water.

Walls past a certain height need engineering and permits in Chelan and Douglas counties. We will tell you when your project crosses that line and coordinate the engineering rather than building something undersized.

Materials, steps, and finish work

Segmental concrete block gives a clean, uniform face and a wide color range. Basalt boulders look at home against the valley hillsides and work well on irregular grades. Both can be built with integrated steps, caps, and lighting sleeves run during construction instead of surface-mounted later.

When the wall is done we finish the grade above and below it, restore irrigation lines we crossed, and haul off spoils. You get a written estimate after we walk the slope, since access for equipment often drives the scope more than the wall length does.

FAQ

Retaining Walls Questions

How tall can a retaining wall be without engineering?
In most local jurisdictions walls over four feet, or walls carrying a driveway or structure above, require engineered plans and a permit. We check the requirement for your address before building.
Block or boulder wall, which is better?
Block gives a uniform face and precise geometry. Boulders suit irregular slopes and a natural look. The work depends more on wall height and equipment access than on the material itself.
Why do retaining walls lean or bulge?
Almost always water and base. No drain rock, no drain line, or a base that was not compacted lets saturated soil push the face out over a few freeze cycles.
Can you build a wall in a tight backyard?
Yes, though limited equipment access means more hand work and that shows up in the estimate. We look at access during the site visit.
Do you handle the landscaping around the wall?
Yes. Grading, irrigation, planting beds, sod, and gravel can all be part of the same scope so nothing gets torn up twice.