Hawaii Engineering Services Inc.
Water & Energy Saving Solutions!


Water & Energy Saving Solutions


Full-Service Wastewater & Water Supply Equipment Integration Specialist Since 1994

For over 25 years, Hawaii Engineering Services has been the leader in supplying Hawaii with wastewater and water equipment. Our extensive product line covers nearly every aspect of municipal systems from pumps, electrical controls, valves, and flowmeters to wastewater treatment plant headworks, and chlorination and ultraviolet (UV) disinfection systems.

Our range of services include:

  • Municipal Wastewater Equipment Sizing

  • Industrial/Commercial Wastewater Equipment Sizing

  • Wastewater Engineering Design Assistance

  • Engineered Product Sales

  • Start-up Assistance

  • Equipment Training

  • Operator Training

  • Performance Testing and Monitoring

  • Process Evaluation

  • Data Logging

  • Energy Efficiency Analyses




Main Office

240 Pu'uhale Road, Suite 202

Honolulu, HI 96819


2298 Alahao Place, Unit 3D

Honolulu, HI 96819



(808) 841-0033






Areas of Expertise

Municipal & Industrial Sales

HES's experienced sales team can assist you and your project through pre-engineering and sizing, estimates, project bid quotes and proposals, equipment submittals, and logistical tracking and management.

startup & training

We stand by our equipment 100% and to ensure it is functioning as intended, we offer startup services at the time of installation as well as operator training. 

Wastewater Design Assistance

With a comprehensive background in water treatment and a diverse knowledge of products and processes, we offer in-depth design assistance to ensure your project is utilizing the best technologies to date.

Field service

We pride ourselves with full-service customer support which continues after installation. If you have an issue with HES provided equipment, we're available 24/7 to mobilize and work on your system.

Performance testing & MOnitoring

Are you wasting necessary resources that could otherwise bring down your operating budget? Efficiency is key in water treatment. Let us help you monitor and test your systems so they are operating as designed.

Repair shop

HES is the only Hawaii based wastewater supply company with a full-service maintenance and repair shop. Based on Oahu, our crew performs regularly scheduled service and emergency repairs!


To judge the health of a nation don’t count the hospital beds, count the water pumps.
— Oxfam