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Hawaii Water, Electric and HVAC Submetering  Services

Call 808-913-3590

Providing Service to Oahu, Maui and Big Island

Founded in 1983, Guardian provides a full-suite of utility cost recovery services including submeter system-design, submeter installation services, submeter data acquisition, utility billing, collections and utility management - all backed by a 36 year commitment to superior customer service. We work directly with our customers to increase net operating income, improve property valuation and promote water conservation.


Guardian offers submetering solutions for owners and managers of apartments, condominiums, offices, retail stores, manufactured housing and marinas. Our first priority is to efficiently recover utility costs through the application of submetering measurement technologies. Guardian technologies are supported by an in-house staff of programmers and web application engineers.   We work directly with our customers to increase net operating income, improve property valuation and promote water and energy conservation.


Our Local Sales and Service Office in Honolulu provides timely submeter installation and technical support to help maximize recovery of utility costs and protect your bottom line.

Our Submetering Expertise

Just about all new multifamily developments are choosing to submeter and bill back for utilities from the start. Guardian's team of sales professionals, project managers and field technicians work directly with developers and builders during all stages of the new construction process.  We ensure your submeter system is installed and commissioned on time and for a lower price than the competition. 


Including utilities with rent or AOAO dues provides little incentive for residents to use less. When your're ready to submeter and start billing back for utilities, we've got you covered. We will recommend a system that meets your property's needs then manage the implementation process from start to finish. We guarantee the lowest submeter pricing and the fastest lead times in the industry. 

Maintenance & 

Properly functioning meters help maximize recovery of your utility expenses and protect your bottom line.  To ensure these problems are not overlooked, we send our clients automated email alerts spotlighting usage anolmolies and subeters requiring service at their properties. Our nationwide team of project managers and field technicians make necessary repairs and replacements as needed.

Monitoring & Utility Billing

Once your new system is installed, we provide on-going monitoring, leak detection and utility billing services.  We have different levels of service depending on your level of management control. Our billing platform integrates with all major property management software.  We can also takeover reading and billing using your site's existing submeter system if you are having problems with you current provider.

Local Hawaii Submetering Company 

Guardian Water & Power, Inc,

7 Waterfront Plaza 

500 Ala Moana Blvd Ste 400

Honolulu, Hawaii 96813

Sales Inquiries


Why Choose Guardian? 
Multifamily Utility Billing RUBS
Water Submetering
94% Account Retention Rate
Submeter Company
10 Day Avg
Meter Service
Apartment Utility Billing RUBS
Submetering Company
91% Utility Billing Collection Rate
A+ BBB Rating
Since 1983
Water Submetering Services
1.5 Million Bills
Mailed Each Year
Local Sales and 
Service Office
Property Management Software Integration

Water Submetering Company

Submetering Company

Hawaii Submetering Legal Environment

Water Submetering: Permitted

Gas Submetering: Permitted

Electric Submetering: Permitted

Ratio Utility Billing (RUBS): Permitted

Notes: We provide free regulatory support to keep your new submetering program in compliance with all local rules and regulation. Local ordinances may apply. Submetering regulations are subject to change. Contact Guardian Water & Power for the most recent water, gas and electric submetering and utility billing regulations in Hawaii.

Local Electric Providers

Hawaiian Electric (HECO)

1001 Bishop Street

Honolulu, HI 96813

(808) 548-7311

Maui Electric 

210 W Kamehameha Ave

Kahului, HI 96732

(808) 871-9777

Hawaii Electric Light 

74-5519 Kaiwi Street

Kailua-Kona, HI 96740

(808) 329-3584

Local Water Providers

Board of Water Supply

630 S Beretania St

Honolulu, HI 96843

(808) 748-5000

Dept. of Water Supply

200 S. High St

Wailuku, HI 96793

(800) 270-7633

Dept. of Water Supply

345 Kekuanaoa Street #20

Hilo, HI 96720

(808) 961-8050

Ready to get started? 

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