A contractor assembles a new toilet in a residential bathroom.
Trade Talk

How WaterSense low-flow toilets benefit pros

As utility rates rise and regulations continue to evolve, water-efficient products have become more of a necessity than just an upgrade. For plumbing professionals, not only are water-saving recommendations now a standard part of modern projects, but they’re also a reliable way to support long-term business growth.

Low-flow toilets, in particular, are a straightforward option. They are typically priced in line with traditional models, minimizing cost concerns for customers while offering simple, familiar operation — especially when compared to dual-flush systems. They also integrate seamlessly into replacements, remodels, and new construction, making them an easy add-on to nearly any job.

By incorporating low-flow toilets into your recommendations, you can help your customers meet efficiency expectations while ensuring they choose the right solution for their household.

What is a WaterSense toilet?

Low-flow and WaterSense are related but not interchangeable. “Low-flow” generally refers to toilets that meet the federal maximum of 1.6 gallons per flush (GPF), while WaterSense-labeled models meet a higher standard of 1.28 GPF or less. All WaterSense-labeled toilets use at least 20% less water than federal requirements, with some models using even less than that.

The Environmental Protection Agency’s (EPA) WaterSense program sets performance and efficiency criteria, with third-party certification verifying compliance. For contractors, the label serves as a quick, reliable way to identify products that meet code expectations while delivering proven water savings and utility cost reduction.

How contractors benefit from low-flow toilets

By expanding your plumbing expertise into water-efficient bathroom solutions, you create opportunities to upsell during standard toilet replacements while helping your customers achieve long-term utility cost reduction.

WaterSense labeling simplifies product selection, making it easier to identify fixtures that not only meet performance expectations, but also align with local codes and utility requirements. Conveniently, these toilets install and retrofit much like traditional models, so they fit seamlessly into your existing workflow.

Whether the project involves new construction, a remodel, or a routine replacement, incorporating water-saving toilets is a savvy way to meet current standards without adding complexity to the job.

A low-flow toilet saves on water bills.

As budgets tighten, utility cost reduction has become a key consideration for homeowners. Water-efficient fixtures provide measurable savings, and WaterSense-labeled toilets offer a reliable standard for performance and compliance.

Actual savings vary by household size, usage, and local water rates, but EPA estimates provide strong, practical talking points for customer discussions:

  • 20–60% reduction in water

  • Conserve more than 1,000 gallons of water per month

  • Up to $3,000 in utility cost reduction over the life of the toilet

In new construction, water-efficient bathrooms help align with local codes and utility expectations. In remodels or standard replacements, WaterSense-labeled options provide a straightforward upgrade path backed by quantifiable savings and simplified product selection.

Customers could earn an energy-efficient toilet rebate.

The WaterSense label makes it easier for you to provide side-by-side comparisons and show how your customer’s investment will pay for itself in the long run. With improved technology, low-flow toilets typically cost the same as options that aren’t certified.

In certain areas, additional savings may be available through rebates for installing water-efficient toilets. These programs vary by municipality and utility provider, and availability is not guaranteed. The WaterSense rebate database can be used to find cities offering incentives for replacing traditional toilets with products that use less water.

When available, pointing out rebate information in project estimates helps reinforce the overall cost-saving potential of water-efficient upgrades.

High-efficiency toilets are simple to install.

Not only are high-efficiency toilets now easier to procure, but their installation process is generally comparable to traditional toilets and don’t require specialized tools or additional training, making them a straightforward incorporation into standard plumbing work.

And for a retrofit, if the commode you’re swapping in has the same rough-in size as the higher GPF version, installation can typically proceed with minimal disruption — consistent with standard toilet replacement practices.

Will customers have problems with low-flow toilets?

Technology has advanced significantly since early water-saving toilets entered the market, but you may still encounter common customer concerns about performance, including clogging or the need for double flushing.

Providing updated information can ease their minds. Modern toilets are evaluated using Maximum Performance (MaP) testing, an industry-standard performance metric that measures water efficiency and flush reliability — while advancements in flush technology have made double flushing unnecessary, as long as the toilet is expertly selected and properly installed.

As with any plumbing fixture, water-saving or not, overall performance can be influenced by system conditions. Drain line restrictions or installation issues, for example, may affect operation regardless of toilet type.

Discuss your next bathroom project with Ferguson

With similar price points, rebate opportunities and long-term savings, low-flow toilets could have a positive impact on your customers’ budgets. Providing excellent service with energy-efficient options could create a positive impact on your bottom line as well.

To learn more about WaterSense or other bathroom options, get in touch with your local Ferguson. Our knowledgeable associates can discuss the most popular and efficient toilets to meet your needs.