Home Water Filtration System Cost

Home Water Filtration System Cost

Do you ever worry about how clean the water that enters your house truly is? A home water filtration system may be what you are looking for. Thanks to this, it cleans and filters all of the water that comes into your home. But, how much does a home water filtration cost? Read on to learn about all of the different prices for the different types used.

Whole-House vs. Under-Sink Filtration System Costs

For the most part, whole-house filtration systems cost more compared to its under-sink filtration alternative. For a single under-sink system, they cost as little as $150, but a whole-house system goes for at least $1,000.


A whole-house filtration system (also called a point-of-entry tap) will clean and filter all of the water that is in your home. The system is installed wherever your house has its main water line, and will remove any contaminants such as iron, sulfur, and chlorine from your water. For its cost, it averages at about $1,000 to $4,200 or even more.


For individual sinks, the cheaper under-sink filtration system may be the better option for you. This system goes for anywhere between $150 and $1,200, and some choices cost less than $100 at plumbing centers or home improvement stores.

Water Filtration System Costs by Type

Below are the average prices of several different types of water filtration systems, as well as if they are whole-house or under-sink. Keep in mind that some filter systems may need a professional to install them, mainly if they are whole-house. However, it is still possible to do it yourself if the system is under-sink, since they sometimes only require screwing in a couple of connections. The average prices and types include: 

Well-water filter: $1,000 – $4,000+. Whole-House.

Chemical injector: $300 – $1,000 for system, and $300 – $500 for installation. Whole-House.

Carbon filter: $50 – $500. Both.

Reverse osmosis: $250 – $4,000. Both.

Ionization: $1,000 – $2,000. Both.

Water distiller: $50 – $4,000 for system, and $300 – $500 for installation. Both.

Ultraviolet: $200 – $1,000 for system, and $300 – $500 for installation. Both.

If you are still questioning which system type suits your needs the best there are a couple of options that you have. You are able to purchase an analysis kit for between $30 to $100, or even hire a professional to test your home’s water and determine which system is best for you.

Well-Water Filter

Well-Water filters are whole-house systems, and as such will cost between $1,000 to $4,000 or more. The type of filter that you decide on should cater to specific issues that you are facing, such as having too much bacteria, sediment, or heavy metals in your water.

Chemical Injector

Chemical Injectors utilize smaller amounts of chemicals, such as hydrogen peroxide and chlorine, to help purify rainwater or well water. They cost between $300 to $1,000 for the system itself, in addition to $300 to $500 for labor in order to install it.

Carbon Filter

Carbon filters are one of the cheapest options, costing only between $50 to $500, and they remove chlorine from your water, which improves the water’s smell and taste. Cheaper versions usually have carbon gravel, and more expensive ones are in block form. 

Reverse Osmosis

Reverse osmosis systems cost anywhere between $250 to $4,000.  However, most homeowners decide to go with under-sink, faucet-based products, and they usually go for between $250 to $1,300, while the whole-house types usually cost between $1,000 to $4,000. These systems need regular filter changes, which add to their overall cost over time. If you plan to own the system for a long amount of time, keep in mind that these filter changes may boost up the price.


Ionization systems, as their name suggests, ionize water with a low-frequency electromagnetic pulse to do so, and reverse the minerals’ charges. These typically cost between $1,000 to $2,000.

Water Distiller

Water distiller systems boil the water that enters your home, while leaving behind only the pollutants. In the process, the system cools and collects the water vapor until it becomes clean water for your use. These cost between $50 to $4,000 for the system itself, in addition to $300 to $500 for labor to install the system into your home.


Ultraviolet, or UV for short, light water treatment systems will cost anywhere between $500 to $1,500 or more depending on their quality. However, keep in mind that these only neutralize living organisms, mainly bacteria, so they must be paired with another treatment system.

Rainwater Filtration System Cost

A complete rainwater post-collection filtration system will cost between $200 to $10,000 or more, which depends on how big the system is and any of the components that you will need. These systems typically involve the following stages or elements:

Pre-filters: Cost between $150 – $500. Options to remove debris such as leaves, sand, and gravel include in-ground, pre-flush, in-tank, and downspout diverters. 

Rain collection: Downspouts and gutters cost between $500 – $1,500 or more. Pipes and gutters collect any runoff from your roof.

Filtration: Cost between $1,000 – $4,000. This typically utilizes some kind of reverse osmosis system, at times with a dye or chemical injector.

Storage: Cost between $500 – $20,000. For a consistent water supply, make sure to also purchase an aboveground, rooftop, underground, or in-home reservoir. 

Benefits of a Water Filtration System

Test your water to determine if your home truly needs a water filtration system. If your results reveal your water is hard (contains large amounts of magnesium or calcium) and/or contains any sort of toxins, you should think about installing a system. In the end, it will make your water clean and healthy to drink and use.

Shinier Hair, Plates, and Fixtures: Hard and dirty water makes rinsing the soap off of plates, your body, and other fixtures much more difficult. If soap scum begins to build up somewhere, surfaces may start to appear dull instead of glossy and clean.

Longer Lasting Appliances and Cleaner Pipes: Hard and dirty water typically accumulates inside of your home’s pipes and are even able to damage different appliances over time if the problem is not stopped.

Better Tasting Drinking Water: Having a water filtration system can help remove any chlorine and minerals from your water, making the tap water both look clearer and taste better.

Safer and Healthier Drinking Water: Water filtration systems also remove any toxins present within your drinking water. If your home was built before 1986, you’re at a much higher risk since it could likely have lead pipes. In private wells, they could be contaminated by heavy metals, pesticides, and nitrates. 

Whiter and Cleaner Clothes: Hard and dirty water may make your clothing appear gray and dull after being washed. If the water is high in iron, it may even ruin lighter-colored clothes with a rusty hue. 

Home Water Filtration System Cost Conclusion

Overall, while the process of buying and installing a home water filtration system may seem intimidating, the end result is well worth it! Once you have one, you will be able to enjoy using your newly cleaned water for a variety of purposes, whether that is having a drink or washing your clothes.

Written by: Max Kahn

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