Submetering Regulations

Submetering is an efficient utility management solution that is becoming popular among property owners of apartments, condos, and mobile home parks. Submetering allows property owners to monitor individual utility consumption in each unit and bill residents based on their actual usage, which can lead to significant savings on utility costs. However, property owners need to be aware of submetering regulations that apply to different utilities.
Water submetering regulations differ by state and municipality, with some states allowing and promoting it while others may prohibit or regulate it. Each state and municipality has different regulations around the installation, maintenance, and billing of water submeters for multifamily properties. Property owners must ensure they comply with state regulations and obtain necessary permits before installing water submeters.
Gas submetering regulations also vary by state and locality. Property owners should first check with NES to ensure compliance with gas submetering regulations.
Similarly, electric submetering is subject to state and local regulations, with some states having specific regulations while others are more general. Property owners must comply with applicable regulations and obtain necessary permits before installing electric submeters.
Submetering regulations for apartments, condos and mobile home parks can vary depending on the utility being tracked and the location of the property. It’s crucial that property owners consult with local authorities to ensure compliance with submetering regulations and obtain necessary permits before installing submeters. NES (National Exemption Service) offers customized submetering solutions for water, gas, and electric utilities, as well as 24/7 support to assist property owners throughout the submetering process. By complying with submetering regulations, property owners can take advantage of the numerous benefits of submetering, including reduced utility costs and increased energy efficiency.

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Submetering and RUBS by NES
NES provides Submetering services around the country.

What is Submetering?

Utility Submetering involves the installation of equipment to measure and bill each unit’s water/sewer, gas, and electric use. Submetering has been used since it was invented in the early 1920s.

What are the benefits?

If you are trying to recover operating expenses for your apartment complex, Submetering is the answer.

When a property installs water submeters, tenants work harder to conserve, therefore reducing overall consumption dramatically. We typically see 15-30% water savings. Submetering is also instrumental in detecting leaks. Common area water usage can be accurately measured and billed accordingly.

Submetering can also increase the value of your apartment complex or mobile home park.

Bottom line: The real estate owner is able to save money since the tenants pay for the water they used. The return on the investment is usually seen within 12 months.


What types of real estate can be Submetered?

All types of real estate can be submetered. We serve both new construction and existing properties, those with equipment in place and those requiring equipment. Property types include apartment communities, mobile home parks, townhomes, and condominiums. We specialize in properties with 100+ multifamily units.

What is RUBS and how can it help real estate that can’t be metered?

RUBS is an acronym for Ratio Utility Billing System. RUBS uses formulas to allocate utility costs for water/sewer, gas, and electricity when meters are not an option or if your investment dollars can be better utilized elsewhere. We have a variety of RUB options to choose from and our team will outline them in accordance with your goals.

Does Submetering have regulations?

Yes. Lots of regulations. The laws and regulations regarding submetering multi-family properties change frequently and vary greatly per state and county. If you plan on installing and servicing your own Submeters without NES (National Exemption Service), we highly recommend staying up to date with the latest regulations.

Can National Exemption Service handle my large property?

National Exemption Service ( is one of the largest Submetering companies in the USA. We currently provide Submetering and RUBS services in over 40 states with a focus on properties with more than 100 multifamily units. NES is uniquely structured to handle these large projects efficiently and professionally.

Our dedicated compliance team actively keeps up with state and county regulations, in-house customer phone and email support team provide friendly assistance and the President & Owner actively manages the entire team. Protect yourself from liability and let NES handle your real estate.

National Exemption Service (NES) President & Owner is also a voluntary board member of the Utility Management & Conservation Association which makes him privy to best practices in the industry.

Do you own or manage a multifamily property with 100 or more units?

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