Energy-Efficient Plumbing and Electrical Solutions for Bathroom Remodel

Bathroom Remodel
Written by: Emily Simmons
November 25, 2023

Key Takeaways

  • The average bathroom remodel cost is $10,978, ranging from $2,500 to $80,000.[1]

  • Energy-efficient plumbing and electrical solutions accounted for 9.3 million remodeling projects, with an average cost of $1,769 per project, totaling $15.6 billion.[2]

Renovating a bathroom is not just about aesthetics; it’s an opportunity to incorporate energy-efficient solutions that save money and reduce environmental impact. From $2,500 to $80,000, the average cost of a bathroom remodel is $10,978. [1] This guide delves into the latest in energy-efficient plumbing and electrical solutions to consider for your bathroom remodel.

Water Heaters

Exploring water heaters is crucial in any bathroom remodel, especially focusing on energy-efficient options with cost and environmental benefits.

Why Tankless Water Heaters are Energy Efficient

Tankless water heaters, also known as on-demand water heaters, provide hot water only as needed. Unlike traditional water heaters that constantly heat and reheat water in a tank, tankless models heat water directly without using a storage tank. This on-demand approach reduces wasted energy, making it an eco-friendly and cost-effective solution.

Pros and Cons of Tankless Water Heaters

The total cost of 9.3 million remodeling projects was $15.6 billion, with an average cost of $1,769 per project.[2] Learn how tankless water heaters contribute to greater energy efficiency. Read on to better grasp how tankless water heaters contribute to a more energy-efficient home.


  • Energy Efficiency: They can be 24%–34% more energy efficient than traditional water heaters for homes that use 41 gallons or less of hot water daily.

  • Longevity: They typically last longer than tank heaters, about 20 years.

  • Space-Saving: Their compact size frees up space in your home.


  • Higher Initial Cost: They are more expensive to purchase and install.

  • Limited Output: They might struggle to supply enough hot water simultaneously for multiple uses.

Different Types of Tankless Water Heaters

Tankless water heaters come in various types, primarily differentiated by their energy source:

  • Electric Tankless Water Heaters: Ideal for smaller demand and easier to install.

  • Gas Tankless Water Heaters: Better for high-demand usage but require proper venting.

Cost Comparison Between Traditional and Tankless Water Heaters

While the initial cost of a tankless water heater is higher than a traditional one, the long-term savings in energy costs are significant. Over time, the energy savings can offset the initial higher investment.

Installation Requirements for Tankless Water Heaters

Professional installation is key. Gas models require proper venting and combustion air supply, while electric models demand high-powered electrical circuits.

Toilets & Faucets

Toilets and faucets are key elements in energy efficiency, offering significant water and cost savings in bathroom remodels.

High-Efficiency Toilets and Their Benefits

High-efficiency toilets use significantly less water per flush, usually 1.28 gallons or less, compared to the standard 1.6 gallons. They reduce water usage by 20% or more, offering substantial water bill savings and environmental benefits.

Low-Flow Faucets and Their Benefits

Low-flow faucets reduce water usage by incorporating aerators that mix air with water, creating a steady flow with less water. They can decrease water usage by up to 30%, without sacrificing performance.

Benefits of Replacing Low-Flow Faucets with Motion Sensor Models

Motion sensor faucets offer additional savings and hygiene benefits. They eliminate unnecessary water flow and reduce germ spread, as there’s no need to touch the faucet handles.

Choosing the Best Toilet/Faucet Combination for Your Bathroom Remodel

When selecting a toilet and faucet, consider water efficiency ratings, styles that complement your bathroom design, and models with certifications like WaterSense, ensuring water efficiency and performance.


1. How much can I save with an energy-efficient bathroom remodel?

Savings vary based on the chosen products and usage patterns but expect significant water and energy bill reductions.

2. Are energy-efficient fixtures more expensive? 

They may have a higher upfront cost, but the long-term savings in utility bills usually offset this.

3. Can I install these fixtures myself?

While some may opt for DIY installation, professional installation ensures optimal performance and adherence to safety standards.


An energy-efficient bathroom remodel enhances the look and feel of your home and contributes positively to the environment and your wallet. You can achieve a stylish and sustainable bathroom by choosing the right combination of tankless water heaters, high-efficiency toilets, and low-flow faucets. Remember, the initial investment in these energy-efficient solutions pays off in the long run with lower utility bills and reduced environmental impact.

Avoid bathroom lighting mistakes when remodeling your bathroom from our resources at Bathroom Ready.

Bathroom Remodeling & Installation

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