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Since 1998 · Gaston

Retaining Wall Construction in Gaston, OR

Gaston's sloped lots and Oregon clay soil make retaining walls more than a nice-to-have — they're what keep your hillside from sliding into your patio. We build retaining walls that actually hold back earth, with proper drainage, base, and footing so they stay straight for decades instead of bowing after one wet winter.

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Serving Gaston and the Portland Metro Area, OR · 10% off your next job.

Retaining Walls project completed by Metro Mowing Services and Maintenance LLC in Gaston OR

Retaining walls are one of the most common hardscape builds in Gaston and across the Portland Metro Area, and for good reason — Oregon's slopes, clay soil, and wet winters make a wall the difference between a usable, level yard and a hillside that washes away with every rain. But a retaining wall is only as good as what's under it and behind it. We build walls that actually hold back earth: a compacted crushed-rock base dug to firm ground, block or stone set plumb and level, and gravel backfill with a drainage path so hydrostatic pressure never builds up against it.

We've built retaining walls across the Portland Metro Area since 1998 — more than 25 years — so we know what the area's clay soil and slopes do to a wall that's built wrong. The number-one reason walls fail here is water building up behind them with nowhere to go — which is why every wall we build gets clean gravel backfill and a drainage outlet. That's the part most crews shortcut, and it's the part that decides whether your wall lasts five years or fifty.

Retaining walls range from short garden-bed walls that tidy up a planting area to taller walls that carve a level lawn or patio out of a slope. We build in segmental block for most structural walls — interlocking, strong, and clean-faced — and natural stone or pressure-treated timber where the look or budget calls for it. We help you pick the material that lasts and matches the house, and we tell you up front what the whole build costs — base, drainage, materials, and haul-off.

A lot of our work is replacing walls that another crew built without drainage, and that are now bowing or leaning. We tear them out and rebuild them right — base, compaction, drainage, and all — so you're not back here in five years looking at the same problem on a bigger lot. Whether you need a new wall to create level space out of a slope or a failing wall rebuilt the right way, we handle it from estimate to finished grade.

Problems We Solve

Slope & Soil Problems We Solve with Retaining Walls

Slope erosion and washout

Oregon rain on a bare slope strips topsoil fast. A wall holds the grade and stops the runoff.

Unusable sloped yards

We terrace with walls to turn a hillside into level, usable lawn or garden space.

Clay soil heaving

We build the base and drainage right so freeze-thaw and wet clay don't push the wall over.

Old walls that are bowing

We replace failing walls and rebuild them the right way — drainage, base, and all.

Why Metro Mowing

Why Choose Metro Mowing for Retaining Walls

01

Built to hold, not just to look good

Proper base, compaction, and drainage behind the wall — the things that decide whether it lasts 5 years or 50.

02

Local soil experience

We know Gaston's clay and the Portland Metro's sloped lots. We design for what's actually under your wall.

03

Material that fits your property

Segmental block, natural stone, or timber — we help you pick what lasts and what matches the house.

04

Clear, written estimates

You see the full price — base, drainage, materials, haul-off — before we start. No extras after.

Our Process

Our Retaining Wall Build Process

01

Site visit & estimate

We measure the slope, check the soil, and give you a written price for the wall, drainage, and materials.

02

Excavate & base

We dig to firm ground and lay a compacted base — the part that decides whether the wall holds.

03

Build with drainage

We set block or stone, plumb and level, with gravel backfill and drainage so water doesn't build up behind it.

04

Finish & grade

We cap the wall, grade the soil above and below, and clean up the site.

Materials & Methods

Materials & Methods

We build with segmental retaining-wall block for most structural walls — interlocking, strong, and clean-faced. For lower walls and garden beds we also use natural stone and pressure-treated timber. Behind every wall goes clean gravel backfill and a drainage path so hydrostatic pressure never builds up against it.

  • Segmental block, natural stone, or timber
  • Compacted crushed-rock base
  • Gravel backfill with drainage outlet
  • Level, set, and capped to spec
Who We Serve

Residential & Commercial / Agricultural

Residential

Terraced yards, garden-bed walls, and slope stabilization for homes in Gaston, Hillsboro, Forest Grove, and the sloped lots across the Portland Metro Area.

Commercial & Agricultural

Retaining walls for property entrances, parking edges, and landscaped berms at businesses and HOAs that need engineered-looking results without the big-firm price.

Project Gallery

Recent Retaining Walls Projects

Retaining wall construction project completed by Metro Mowing Services and Maintenance LLC in Hillsboro OR
Stone retaining wall — Hillsboro, OR
Retaining wall and patio project completed by Metro Mowing Services and Maintenance LLC in Tualatin OR
Wall with patio — Tualatin, OR
Slope retaining wall project completed by Metro Mowing Services and Maintenance LLC in Gaston OR
Slope wall — Gaston, OR
Reviews

What Gaston & Portland Metro Clients Say

Sample reviews shown — replace with your verified Google reviews.

"Nicolas and his crew have mowed our five acres for two seasons now. Always on time, always clean-cut, and the field looks better than it ever has. Glad we found them."
Diane R.Gaston, OR
"They rebuilt our sloped backyard with a retaining wall and new paver patio. The drainage work they did saved our basement. Professional from quote to finish."
Marcus T.Beaverton, OR
"Our HOA hired Metro Mowing for the common areas. Communication is clear, the lawns are sharp every week, and they handle the big field mowing too. Highly recommend."
Lina K.Hillsboro, OR

Sample customer feedback — replaced with real Google reviews.

Talk to a Local Contractor

Free estimates and fast response — Since 1998 experience.

Call (503) 443-9121
Popular Locations

Retaining Walls in Cities Across the Portland Metro Area

See how we deliver retaining walls in your city. Click any link for local details, pricing, and a free estimate.

Where We Work

Retaining Walls Across the Portland Metro Area

We bring our retaining walls services to homeowners, farms, and businesses across Gaston and the Portland Metro Area, OR. Find your city below.

FAQ

Retaining Walls in Gaston — Common Questions

Questions about our retaining walls work in Gaston and the Portland Metro Area, OR.

Do I need a permit for a retaining wall in Gaston?

Taller walls (typically over 4 feet) often require a permit. We handle or advise on permits as part of the estimate — we'll tell you up front what your project needs.

How tall can you build a retaining wall?

We build walls from a foot or two up to taller engineered walls. For very tall walls we may bring in engineering — we'll tell you at the estimate.

What material lasts longest?

Segmental block on a proper base with drainage lasts decades. Timber is more economical but shorter-lived. We'll recommend the right material for your height, soil, and budget.

Why is drainage behind the wall so important?

In Oregon, water building up behind a wall is the #1 reason walls bow and fail. We install gravel backfill and drainage so pressure never builds.

Do you offer a warranty on walls?

We stand behind our workmanship. Talk to us about your specific project and we'll be clear about what's covered.

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Get Pricing for Your Retaining Walls Project

Call a local landscaper — Since 1998. Free estimates, fast response, and 10% off your next job.

Call (503) 443-9121

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