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Water Submetering

Gas Submetering

Electric Submeterin

Radio Utility Billing (RUBS)

CA Contractor's License #1063796
CA Divison of Weights & Measures Agency License #3707

Customer Satisfaction Since 1983

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 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.  


Our local sales and service office provides timely submeter installation and technical support to help maximize recovery of utility costs and protect your bottom line.

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. 

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.

Submeter Retrofits

Including utilities with rent or HOA 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. 

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.

Sales Inquiries


Local Submetering Company Serving Southern California Since 1983

Guardian Water & Power, Inc

Regus - Orange - Orange Executive Tower, 1100 Town and Country Road Suite 1250, Orange, CA, USA

Submetering Legal Environement

Water Submetering


Gas Submetering


Electric Submetering


Radio Utility Billing (RUBS)



  • All multifamily housing built after January 1, 2018 must be submetered for water

  • Ratio Utility Billing Service (RUBS) still permitted for properties built prior to January 1, 2018

  • Cap placed on third party utility billing fee

  • Property management must meet strict notification requirements for tenants billed separately for water

  • New resident utility bill format and presentation requirements

  • Contact Guardian for more details


All California type approved submeters must first be submitted to the California Department of Food and Agriculture's local Division of Weights & Measures for testing and approval prior to installation. California submeters must be installed by a licensed service agency. Guardian's license is #30699. We work very closely with our clients to fully understand their building's plumbing infrastructure before recommending a submetering system that fully complies with Weights & Measures code.

Weights & Measures requires the submeters to be placed in service by a licensed service agency at a location where the resident can easily read the meter at eye level or below.  If the meter can not be installed at such a location, remote displays units must also be installed by the licensed service agency.  Contact Guardian for more details.


Property owner cannot provide utility service at a profit. Local ordinances may apply. Submetering regulations are subject to change. Contact Guardian Water & Power, Inc. for the most recent submetering and utility billing regulations in California.

Local Utility Providers

Local Apartment Associations

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

Ready to get started? 

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