GI Landscape — CCB 224884

Engineering

The work no one sees
is the work that lasts.

Three engineered systems behind every GI Landscape install. The visible surface is what most contractors quote on. The four layers underneath are what make our installs last 20-30 years instead of 5.

Artificial turf· how we build it

The GI Turf System
Built for real life.

Every turf install we lay is five engineered layers deep. It's why our lawns hold up to PNW rain, kids, dogs, and twenty years of use.

Cross-section of a GI Landscape artificial turf install — five engineered layers shown bottom-up: compacted soil foundation, weed-free barrier fabric, drainage rock core, smooth finish, and premium turf on top
  1. 5

    Premium turf

    Looks and feels like real grass. Stays green for 20 years.

  2. 4

    Smooth finish

    A level, soft, even surface — no lumps underfoot, no rolled ankles.

  3. 3

    Drainage core

    Rain disappears in minutes. No puddles, no mud, no waiting to use your yard.

  4. 2

    Weed-free barrier

    Stops weeds before they start. No pulling, no spraying, ever.

  5. 1

    Solid foundation

    Engineered, compacted base that won't sink, shift, or settle.

  • Safe for pets

    Non-toxic, easy to clean

  • Safe for kids

    Soft landing, no chemicals

  • Never needs mowing

    Your weekends back

  • Stays green

    20-year warranty

Want this system for your property?

Paver patio· how we build it

The GI Paver Patio System
Built for Portland's wet climate.

Every paver patio we install is engineered to survive PNW freeze-thaw cycles and prevent water pooling. Excavate 7-9 inches below grade, compact the native soil, build the base in lifts, and finish with polymeric sand in every joint.

Cross-section of a GI Landscape paver patio system — pavers, half-inch bedding sand, three-quarter-inch minus crushed gravel base, and compacted native soil subgrade. Portland, Oregon spec.

Most failed patios in Portland trace back to one of two things: a base that wasn't deep enough, or sand that wasn't screeded flat. We excavate 7-9 inches below finished grade, compact the native soil with a plate compactor, and build the gravel base in lifts — 2 to 3 inches at a time, compacted between each lift, never all at once. The bedding sand is screeded perfectly level (this is the cushion that keeps the surface even for decades), and polymeric sand is swept into every joint and activated with water to lock the pavers together. Edge restraint around the perimeter prevents the field from spreading. The result is a patio that survives freeze-thaw, drains naturally through the joints, and stays repairable — lift one paver, fix what's underneath, reset. No whole-slab demolition.

  • Freeze-thaw rated

    Built for PNW winters

  • Drains naturally

    Water moves through the joints

  • Repairable

    Lift, fix, replace — no whole-slab demos

  • 5-year warranty

    In writing on every install

Want this system for your property?

Retaining wall· how we build it

The GI Retaining Wall System
Drainage first, then everything else.

Most retaining walls in our climate fail because of drainage, not strength. Our walls are built drainage-first — every wall has a perforated drain pipe at the base, a clean-rock chimney behind the blocks, and filter fabric keeping soil out of the drainage system.

Cross-section of a GI Landscape retaining wall — wall cap, segmental retaining wall blocks, leveling pad, compacted foundation rock, perforated drain pipe sloped to daylight, three-quarter-inch clean drain rock chimney, filter fabric, and backfill soil

Most retaining walls in our climate fail because of drainage, not strength. Water pressure builds up behind the wall, freezes in winter, and pushes blocks out of alignment within a few years. Our walls are built drainage-first. A 6-inch compacted foundation rock pad sits at the base with a 3/4-inch crushed leveling layer on top — every block above is level because this layer is level. A 4-inch perforated pipe runs along the base sloped 1% to daylight, and a chimney of 3/4 to 1-1/2 inch clean drain rock is packed directly behind the blocks so water moves down through the rock to the pipe instead of into the wall. Filter fabric separates the drain rock from the backfill soil so soil can't wash in and clog the system. The cap is glued to the top course with construction adhesive to shed water off the top. Walls taller than 4 feet get engineered drawings and permits — code requirement, not optional.

  • Drainage first

    Built drain-out, not dam-in

  • Engineered if needed

    Permits + stamped drawings on tall walls

  • 40-year design life

    Done right, walls last decades

  • 5-year warranty

    Workmanship in writing

Want this system for your property?

Yard drainage· how we build it

The GI French Drain System
Move the water before it moves your yard.

A properly installed French drain directs groundwater away from foundations, walls, and low-lying areas. Our spec: 18-24" trench depth, 12-18" wide, with 4-inch perforated pipe sloped at 1% minimum to a safe outlet — daylight, storm drain, or dry well.

Cross-section of a GI Landscape French drain — finished grade sloped away from structure, three-quarter to one-and-a-half-inch clean drain rock extending to top of trench, geotextile fabric wrapping the rock, four-inch perforated pipe sloped to drain on two inches of drain rock

French drains work when they're built to spec and fail when they're not. Our spec: an 18-24 inch deep trench, 12-18 inches wide, sloped at 1% minimum (one inch of drop per eight feet of run) toward the outlet — daylight, storm drain, or dry well depending on the site. The 4-inch perforated pipe sits on 2 inches of clean drain rock at the bottom for support and uninterrupted flow into the perforations. Above that, the trench fills with 3/4 to 1-1/2 inch clean drain rock all the way up. Geotextile fabric wraps the rock with overlapping seams — this is the part most installers skip, and it's the part that determines whether your drain still works in 10 years or whether soil migrates in and clogs the rock. Finished grade slopes away from the structure (1% minimum) so surface water moves toward the trench instead of toward the foundation.

  • Foundation safe

    Keeps water away from your house

  • Built for PNW rain

    40+ inches a year, no problem

  • Multiple outlet options

    Daylight, storm drain, or dry well

  • 30-year design life

    Filter fabric protects the system

Why systems matter

The 4 layers most contractors skip
are the 4 that make it last.

A paver patio installed on bare soil looks the same as one installed on six inches of compacted gravel base — for the first two winters. Then one of them starts to heave, and the cheap install becomes the more expensive one.

Same with turf. Same with retaining walls. The visible 10% of the install is what most contractors compete on. The invisible 90% is what we compete on.

This page exists so you can see what you're actually paying for. If a competitor's quote is 30% lower than ours, the four layers on this page are where the corners got cut.

Free quote. No upfront payment.
Same-week site visits.

Veteran, senior, and neighbor discounts available — ask at your free site visit.