What Is the Average Cost of a Whole House Water Filtration System?

Whether your home’s water supply is from a municipal source or a well, its composition might not be as clean as you assume. Even if the water in your home is treated and certified safe to drink, it may still contain loads of contaminants.

Perhaps you can’t bear the taste of tap water, are concerned about the quality of the water you drink, or are worried about limescale damaging your pipework; consider installing a whole house water filter system.

A home water filtration system is a practical solution for homeowners looking to treat their water supply before consumption. Increased awareness regarding unhealthy drinking water has earned home water filtration systems a top spot among home improvement fixtures.

On average, a home water filtration system costs about $2,100, but the price varies depending on various factors. Stay tuned to find out, among other helpful things, what affects the cost of a water filtration system and how to use it.

Factors Influencing the Cost of a Whole House Water Filtration System

When choosing a home filtration system, there are many factors to consider, and each one affects the cost of the system in a different way. Below are a few significant cost influencers.

System Type

The type of water filter system you choose is the most significant price influencer. A typical filtration unit ranges between $100 and $10,000. For affordable options, carbon filters range between $50 and $550, while ultraviolet light systems cost between $250 and $1,000.

On the high side, the average cost of house water filtration systems like reverse osmosis units and well water filters ranges from $350 to $4,000 and above.

System Complexity

The complexity of a water filter system is directly proportional to its cost; the increased cost results from the difficulty in building, installing and maintaining the unit. Complex filter systems have more intricacies and require expert knowledge.

Number of Filters

Your home’s water composition will determine the number of filters required to achieve the desired purification. For instance, if your main water supply source is contaminated or your home’s pipework is old, you may need at least two filters to get the desired results.

Installation Location

The typical location for whole-house water filtration systems is near the main water supply shutoff in the basement. The difficulty in accessing this location will affect the installation cost.

Say your water supply line is only accessible from beneath a crawl space or other uncomfortable areas; your installer may charge extra labor costs as they’d work extra hours to go around whatever obstacle to ensure your whole house system is installed correctly and works fine.

System Brand

As with virtually any product, brand choice also affects the cost of a water filtration system. Certain water filter brands cost more, offering superior quality and improved features, while the affordable entry-level options compromise slightly on quality and features.

Entry-level house water filtration systems cost between $850 and $3,500, while the high-end units sell for at least $4,000 and could cost as much as $8,000 or more. Consider seeking professional advice before buying a whole-house filtration system.


Labor regarding water filter system installation will likely shoot costs up by $300 to $600. Labor costs are often calculated along with the entire water filter purchase, build, and installation estimate. Hence, homeowners can see the charge for each service before proceeding.

A typical water filtration system can be installed in a day, but installing a whole-house water filter system will take longer than installing a single water filter unit. Hence, your water filter choice impacts labor hours and, consequently, labor costs.

Additional Costs and Considerations

Plumbing Services

Your home’s plumbing system may require minor upgrades to install a home water filtration system. Perhaps your plumbing lacks a proper location for filter piping attachment; altering the existing plumbing configurations to accommodate a water filter system will cost you more.

Water Testing

Experts recommend homeowners test their water supply before purchasing a water filtration system. Knowing your water’s composition can save you money and help you select the right water filter.

Water testing costs between $35 and $500, but you can save money by purchasing a DIY water testing kit from a home improvement store.


After installation, the best way to keep your water filter in good shape is to maintain it regularly. Annual maintenance for a water filter will cost between $50 and $300.

The service mostly involves replacing worn-out parts, switching out dirty filters for clean ones, and checking the whole water treatment system.

Types of Water Filtration Systems

A water filter system’s cost almost exclusively depends on the choice of system, and the following are some of the available types:

Reverse Osmosis

Reverse osmosis systems are among the popular choices, costing between $200 and $4,000. Most homeowners go for the small units installed under the sink or on a faucet. The small units sell for as little as $200 to $1,300, while whole-house systems sell for between $1,000 and $4,000.

A reverse osmosis filter removes harmful chemicals and bacteria from water but can’t rid it of volatile organic compounds, solvents, pesticides, and chlorine. Hence, you may need extra filters.

Carbon Filter

Carbon filters are excellent at improving taste and smell as water passes through a positively charged activated carbon filter that traps chemicals and sediments that taint water quality. This system will cost you between $100 and $500, should you choose to go for it.

Well-Water Filter

Well-water filtration systems are engineered to address specific mineral compositions in water; hence, prices vary based on that. The surface depth and physical location are the primary causes of contaminant variations. A well-water system will cost you between $800 and $4,000.

The Bottom Line

Compromising safety by going for the cheapest water filter system may be unwise, and the truth is that the right water filter for you depends on the contaminants in your water. However, you can save money by exploring the discount offers and deals that water filter manufacturers offer.

Perhaps you need expert help with water testing, plumbing upgrades, and repairs, or water filter installation and maintenance; JBK Plumbers are your best bet for a reliable and affordable service.

From water heater replacement and water softener installation to sewer line repair and drain cleaning, we have the human resources and equipment to deliver a satisfactory service. Call us today at 801 – 874 – 7979 to get the best quote!