Po Brothers Excavation (808) 281-5102
House pad cut and benched into an Upcountry Maui lot, with the West Maui mountains behind

Haiku, Maui · Owner-operated

Excavation, grading & trenching on Maui

Septic systems, land clearing, driveways, utility trenching and retaining walls — Haiku to Kula to Kihei. The person who quotes your job is the person running the machine.

Call (808) 281-5102 Get a free estimate
Free on-site estimate Itemized in 3–5 days Licensed & insured
C-17 Licensed Contractor / LIC# CT-39777 / $2M Liability Insured / 10 Years on Maui / County of Maui & HIePRO Registered Vendor

Services

The types of work we do

Free on-site estimate, itemized, usually back to you in three to five days.

Leach field trenches with perforated pipe bedded in gravel on an Upcountry Maui pasture lot

Septic systems, cesspool conversion & pool digs

New installs, cesspool conversions, pool digs and demo. Every cesspool on Maui has to go by 2050.

What's involved →
Excavator working a large soil pile on a cleared Maui lot with the valley behind

Land clearing & site prep

Overgrown to build-ready. House pad cuts, fire-prevention clearing, debris hauled or mulched on site.

What's involved →
Gravel driveway cut through dense tropical trees in Haiku, Maui

Driveways & access roads

Compacted gravel or concrete, built in the right order — base prep and drainage before anything goes down.

What's involved →
Utility trench cut through volcanic ground near the summit observatories on Haleakala

Utility trenching & grading

Trenching to your contractor's spec and to county code. Grading that moves water where you want it.

What's involved →
Curved lava rock boulder wall built around a mature tree on a Maui property

Boulder & landscape retaining walls

Lava rock, boulder and dry-stack keystone block — usable flat ground out of a slope, drained properly behind.

What's involved →

Not sure which

Tell us what the ground is doing and we'll tell you the job

Most calls start with water in the wrong place.

Call (808) 281-5102 →

Maui ground truth

The island doesn't dig the same everywhere

After ten years you know what the bucket will find before it gets there. That's an estimate that holds.

Haiku & Makawao Good digging

Stable clay mix. Predictable, holds a trench wall.

Kula Rock likely

Blue rock gets common the farther in you go.

Kihei & Wailea Rock ~90%

Nine pool or septic digs in ten hit blue rock. Priced in from the start.

Kahului & Central Valley Best on the island

Sand or old ag land under topsoil. Fastest and cheapest on Maui.

What we see in the field — your parcel is the engineer's call. How rock changes a quote →

Septic & cesspool conversion

Every cesspool on Maui has to go by 2050

Hawaii law requires it, and Upcountry is one of only two Priority 1 areas in the state. A new system runs about two working weeks on site — after four to six weeks of health department approval.

$30k–$60k Typical new septic system on Maui. Location, soil, rock and house size move it.
The full breakdown

Haleakala Crater

Trenching inside a national park, for the Coast Guard

We cut and backfilled the trench for a US Coast Guard telecoms upgrade at the summit — background checks and full insurance before anyone set foot on site.

They have hired us again for one on Molokai.

See the trenching work
Backfilled and compacted trench line across the volcanic summit of Haleakala, with an observatory dome on the horizon

Recent work

Our own jobs, our own photos

Every photo on this site is work Po Brothers did. No stock.

Skid steer and excavator moving a soil pile in front of a finished two-storey home on Maui
Yard grading and spoil removal at a new home
Excavator with a hydraulic breaker demolishing a swimming pool surrounded by flagstone decking
Pool demolition, breaker on the deck
New septic tank set in its excavation with inlet and outlet piping connected, before backfill
Septic tank set and plumbed
Two excavators cutting a rectangular swimming pool excavation behind silt fencing
Pool excavation, two machines
Compacted gravel access road curving uphill through green Upcountry Maui terrain
Access road through Upcountry terrain
Po Brothers excavator digging the foundation for a block retaining wall beside a residential walkway
Foundation for a block retaining wall
Finished dry-stack block retaining wall running alongside a concrete walkway and roadway
The finished wall on that foundation
Narrow, deep utility trench cut along the edge of a paved road with the West Maui mountains behind
Utility trench along the roadway
Dump truck tipping a load beside a CASE excavator on a Maui job site
Material delivery and haul-off
Freshly graded red-dirt slope beside a house and lawn with an excavator working uphill
Regraded slope beside the house
Large boulders set in a curved wall around a waterfall excavation on a sloped lawn
Boulder wall for a waterfall feature
Completed rectangular pool excavation with formed edges, walled yard and palms behind
Pool dig, formed and ready

Service area

All of Maui, Upcountry especially

Based in Haiku, working the whole island. We hold rental accounts with every equipment company on Maui, so machine size never stops a job.

  • Haiku
  • Makawao
  • Pukalani
  • Kula
  • Keokea
  • Kahului
  • Wailuku
  • Kihei
  • Wailea
  • Lahaina

Free estimate

Tell us about the job

We'll call you back, walk the property, and send an itemized estimate — usually three to five days after we've seen it.

Talk to the man running the machine

No call center, no sales rep. Akua answers the phone, walks your property, and does the work.

Call (808) 281-5102 Request an estimate