What's the difference between a whole-house filter and an under-sink filter?

A whole-house filter treats all water entering your home — every faucet, shower, and appliance gets filtered water. An under-sink filter treats water at a single point, typically the kitchen sink. Whole-house filters are best for sediment, chlorine, and general water quality. Under-sink filters provide higher-level filtration for drinking water.

How do I know what kind of water filter I need?

It depends on what's in your water. We start with a water test to identify contaminants and their levels. Chlorine taste and odor? A carbon filter works well. Sediment? A sediment pre-filter. Lead or heavy metals? A multi-stage or RO system. We recommend the right system based on your specific water quality results.

How often do water filters need to be changed?

Sediment pre-filters should be changed every 3-6 months. Carbon filters every 6-12 months. The frequency depends on your water quality and usage — homes with more sediment or higher usage need more frequent changes. Most systems have a pressure gauge or indicator that shows when it's time for a new filter.

Will a water filter help with hard water?

Standard water filters do not soften water. Carbon and sediment filters remove particulates and chemicals but not the dissolved calcium and magnesium that cause hardness. For hard water, you need a water softener. Many homes benefit from both — a softener for the whole house and a drinking water filter for the kitchen.

Is filtered water better than bottled water?

In many cases, yes. A quality home filtration system produces water equal to or better than most bottled water, at a fraction of the cost and without the plastic waste. Bottled water is also less regulated than municipal tap water. A home filter gives you consistent quality you can verify with testing.

Can a water filter remove lead from my water?

Yes, but not all filters remove lead. Carbon block filters, reverse osmosis systems, and some specialty filters are NSF-certified for lead removal. Standard sediment filters and pitcher filters typically don't remove lead effectively. If lead is a concern, we can test your water and install a certified lead-removal system.

Water Filter Installation Naperville, IL | Wiz Plumbing

When You Need Expert Water Filters

Clean, great-tasting water is essential for your family's health and comfort. From simple carbon filters to advanced multi-stage systems, we install water filtration solutions that address your specific water quality concerns.

We'll test your water to identify what contaminants are present and recommend the right filtration system. Whether you need to remove chlorine taste, sediment, or specific contaminants, we have solutions that fit your needs and budget.

Water Filter Services:

Whole-house filtration
Under-sink filters
Sediment filters
Carbon filtration
UV sterilization
Iron and sulfur removal
Filter replacement programs
Water testing

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Common Questions

Our Magical Guarantee

Why Naperville Trusts The Wizard

Master Craftsmen

Same-Day Service

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390+ 5-Star Reviews

Magical Savings Await

Your First Plumbing Service

Senior & Military Discount

Same-Day Add-Ons