The Cost To Install a Water Filtration System

Water is the essence of life, flowing through our homes and quenching our thirst. But have you ever wondered about the quality of the water that pours from your faucets? With concerns about contaminants and impurities, many homeowners are turning to water filtration systems to ensure that every sip they take is pure and refreshing.

The average cost to install a water filtration system ranges from $800-$1,600. This price includes the costs of materials and labor needed to install the system. Most people spend $1,200 on average for this project. The type of filtration system you choose will impact the overall cost.

Let's dive into the details and cost breakdown, so you can make a clear choice in this essential home upgrade.

Why Would You Need a Water Filtration System?

While tap water undergoes treatment processes to meet regulatory standards, it's not uncommon for contaminants like chlorine, lead, pesticides, and even microscopic organisms to find their way into our water supply. These impurities can impact the taste, odor, and overall quality of the water we consume. Additionally, if you rely on well water, you face the possibility of various pollutants seeping into your supply. Maybe your municipality doesn’t have the best water quality and you want to ensure your family is drinking clean water. Or, maybe you live in an area with hard water and want to avoid the negative effects it can have on your appliances and plumbing.

By installing a water filtration system, you take control of your water quality, removing harmful substances ,and protecting you and your family.

What Factors Affect the Cost of Installing a Water Filtration System?

There are 3 main factors that can affect the cost of installing a water filtration system. The first is the type of system you choose. There are many different types of filtration systems on the market, and each has its own price tag. The features of the filtration system itself, such as the type of filtration technology employed and any additional purification mechanisms, will contribute to the price. 

Second, the size of your household and your specific water needs will influence the type and capacity of the filtration system you require.  Third, the complexity of the installation including the existing plumbing setup and the accessibility of water sources, can also impact the overall cost. Good news: if your home already has a water filtration system, the installation will be less complex and therefore less expensive.

DIY or Hire a Pro?

Installing a water filtration system is a complex project that requires knowledge of plumbing and electrical systems. If you’re not comfortable taking on this project, it’s best to hire a professional plumber. Expect to pay between $150 and $250 per hour for labor costs.

What Type of Water Filtration System Should You Choose?

The most important factor in choosing a system is to find one that will meet your specific needs, with many to choose from.

For example, if you’re concerned about the quality of your municipality’s water, you’ll want a system that removes Chlorine and contaminants. If you live in an area with hard water, you’ll want a system that removes minerals.

If you get your water source from a well, you may need a filtration system designed for wells that handle Iron, sulfur & sediment. Some systems are designed for specific water sources, so it’s important to do your research before choosing one and consult with your Pro.

The Different Types of Water Filtration Systems

There are four main types of water filtration systems:  whole house, under-sink (RO) reverse osmosis, point-of-use (POU), point-of-entry (POE).

Whole-house systems

This is the most expensive option, but they’re also the most effective. They filter all the water that enters your home, so you can be sure your family is safe from contaminants.

The average cost of a whole house water filtration system (POE) is $2,000 with a range of $1,000-$4,000 depending on add-ons to the system.

Reverse osmosis

Reverse osmosis systems are typically installed under the kitchen sink. They remove contaminants from water before it reaches your faucet. This is a great option if you don't have a lot of space and only need to filter water from one source.

The average cost of an under-sink reverse osmosis system (RO) is $400-$1,200.

Point-of-use system

Point-of-use systems are similar to whole-house systems, but they’re less expensive and only filter the water that comes out of your faucet. This is a great option if you live in an apartment rental and cannot install a water filtration system.

The average cost of a point-of-use water filter (POU) is $40-$200.

UV Water Filtration

UV water filtration systems use ultraviolet light to kill bacteria and viruses. This is a great option if you’re concerned about bacteria & cysts in your water.

The average cost of a UV water filtration system is $600-$1,200.

Carbon Filter

Carbon filters are one of the most common types of water filtration systems commonly used in refrigerators and filter-pitchers. They remove contaminants by trapping them in an activated carbon filter.

The average cost of a carbon filter is $30-$200.

Chemical Injection

Chemical injection systems add chemicals to your water to disinfect it. This is a common method used by municipalities to disinfect their water supply.

The average cost of a chemical injection system is $600-$1,800.

Water Softener

A water softener is a type of point-of-use system that removes minerals from hard water. This is a great option if you live in an area with hard water.

The average cost of a water softener is $600-$1,500.

Water Filtration System Installation Cost

The cost of installing a water filtration system varies depending on the type of system you choose. The average cost of installation for a whole-house system is $,1200, while the average cost of installation for an under-sink reverse osmosis system is $500.

The cost of installation will also vary depending on the size of your home and the complexity of the installation. If you have a larger home or a complex installation, you can expect to pay more for installation.

To get an accurate estimate for the installation cost of a water filtration system tailored to your home, it's advisable to consult with reputable Pro. They can assess your specific needs, evaluate your plumbing system, and provide you with a detailed breakdown of the installation cost, ensuring that you have a clear understanding of the investment required for cleaner, healthier water in your home.

Water Filtration System Maintenance Cost

Most water filtration systems require little to no maintenance aside from changing out the pre-filters. The only exception is reverse osmosis systems, which need to have the filters changed every 12 months or when there are water quality signs. The average cost of filter replacement is $50-$200.


While the cost of installation may vary depending on factors such as the type of system, the size of your home, and the complexity of the plumbing, it is an investment in your health and well-being. By considering your specific water quality concerns, consulting with experts, and understanding the different types of filtration systems available, you can make an informed decision that aligns with your needs and budget. Take the step towards cleaner, fresher water and enjoy the peace of mind that comes with knowing you are providing your family with the highest standard of water quality within the comfort of your own home.

This post was written (with edits) for Networx by Ava Martin of QWL.

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