Irrigation & Landscape Drainage Services in Honolulu, HI and Oʻahu

Smart Irrigation Design and Landscape Drainage Solutions That Work With the Island

Water is life—especially in a place as lush and alive as Hawaiʻi. But without the right systems in place, too much or too little of it can cause big problems. At Hapa Landscaping, we design irrigation and drainage solutions that work with the natural flow of your land, helping your landscape thrive while minimizing waste and runoff.

Our team specializes in irrigation system design and repairs that are tailored to Oʻahu’s unique climate and terrain. Whether you're working with native plantings, ornamental gardens, or high-traffic lawns, we build systems that support healthy growth with efficiency and precision.

We also provide expert landscape drainage services to help prevent erosion, water pooling, and foundation damage. From grading and trenching to installing French drains, we bring both the tools and the insight to keep your outdoor space balanced, beautiful, and built to last.

Our Irrigation & Drainage Services Include:

+Irrigation Design Services – Customized systems that deliver the right amount of water, exactly where it’s needed.

+Irrigation System Repairs – Diagnosing and fixing broken lines, sprinkler heads, timers, and more.

+Smart Watering Solutions – Sustainable irrigation methods that conserve water while supporting healthy growth.

+Landscape Drainage – Grading, channel drains, and custom solutions to redirect excess water and prevent damage.

+French Drains Installation – Subsurface systems that efficiently manage water flow and reduce saturation.

+Stormwater Management – Proactive strategies to protect your property during Hawaii’s seasonal rains.

+ Soil & Water Balance Consulting – Understanding your land’s needs so we can keep it healthy long-term.

Whether you’re starting fresh with new irrigation or fixing a lingering drainage issue, our team is here to help you build a system that works in harmony with your home and the island.