Po Brothers Excavation (808) 281-5102
Curved lava rock boulder wall built around a mature tree on a Maui property

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Boulder & landscape retaining walls on Maui

Lava rock, boulder and dry-stack keystone block. The way to turn a slope you cannot use into flat ground you can.

C-17 Licensed Contractor / LIC# CT-39777 / $2M Liability Insured / 10 Years on Maui / County of Maui & HIePRO Registered Vendor

What a wall is actually for

A slope you cannot use, turned into ground you can

On a sloped property a wall is often the difference between a yard and a hillside — and between a building site that works and one that does not.

It does three jobs at once: it maximises usable space, it controls drainage and runoff properly, and it gives a new home a secure site to sit on.

Boulder and lava rock walls

Built from stone, set so it holds. On this island it is also the wall that looks like it belongs where it is, rather than something trucked in from somewhere else.

Dry-stack keystone block

Engineered block, dry-stacked. Cleaner lines, very consistent, and a good answer where the wall is doing structural work along a driveway or a building pad.

Finished dry-stack block retaining wall running alongside a concrete walkway and roadway

Dry-stack block wall holding the grade beside a walkway.

What a wall costs

Most 3-foot retaining walls land between $100 and $200 per linear foot. Where yours falls depends on the location, how easy the site is to reach, and the type of block or rock used. That is a range from walls we have built on this island, not a quote — your number comes from walking the site.

We walk the site with you first

Every wall starts the same way — walking the property, hearing what you are trying to achieve, and working out the right plan for that slope. And as with everywhere on Maui, the approach changes with the terrain and the soil type we are dealing with.

Before and after

A boulder wall for a waterfall feature

The hole dug and shaped first, then the boulders set around it to hold the slope and frame the water.

BeforeExcavated and shaped hole in a sloped lawn, ready for a waterfall feature, with a mini excavator above
AfterLarge boulders set in a curved wall around the waterfall excavation on the same slope

Three of our reviews

Walls we were hired to build

“Super professional, smart &efficient - did everything as agreed upon within allotted time & budget - highly recommended!!! Also gave sound advice when needed- very pleasant to work with!”

Claudia G.Lava rock retaining wall and trenchingKeokea

“We are so very happy with our finished project. Akua did everything he said he would do. He gave us a detailed invoice so we knew exactly what materials were being used. He came when he said he would and even gave us a courtesy call the day before. He was punctual and came 3 days in a row to finish the project. It was finished when he said it would be. He is a breath of fresh air. And his estimate was thousands less than the other estimates. We highly recommend him and respect his integrity.”

Marie Anne T.Landscape retaining wallKihei

“Akua gave me the lowest bid by a large margin. He also bid the job by the days it would take and we had time to do extra work within the same timeframe which made a huge difference. His professional manner and great communication was a great comfort and his expertise on his machinery was miraculous. The placement of rocks and going the extra mile in doing all the final touches of landscaping and racking was beyond my expectations. He had another man watering and doing small things that kept my neighbors happy things running smoothly. He is the best.”

Kirk D.Boulder wall and gradingKihei

Related work

Often the same job

Talk to the man running the machine

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