Quick summary: Professional drinking water filter installation involves connecting the filtration system to your water supply, verifying performance and reviewing maintenance requirements. Most installations take one to two hours and may require cabinet space, access to a cold-water line and, for some systems, a nearby electrical outlet.
Preparing your home for a drinking water filter installation is usually straightforward. In most cases, you simply confirm where the system will be installed (typically under the sink), clear the cabinet space and identify the cold water shutoff valve. Some installations also require access to an outlet or space for a small tank, depending on the system.
Your local Culligan water expert will confirm the details during your initial consultation so the installer can work efficiently on installation day.
Here’s a look at Culligan’s professional installation from beginning to end.
The Culligan water filter installation process
The water filtration system installation process differs depending on a variety of factors, including the supplier. A professional water partner like Culligan knows how to make every step as simple as possible for you.
- Identify contaminants to filter: The first step is to identify what specific concerns you want to address in your drinking water, then choose a system designed for it.* Culligan offers free water testing and consultation services to help you choose the best filtration system for your needs.
- Find a place for your filter: Next, you’ll need to figure out where the water filter will go — for example, under the sink, in your basement or inside a kitchen cabinet — and whether it will need an electrical outlet.
- Schedule installation: The next step is to schedule the installation and prepare your home. Preparation doesn’t take too long. All you have to do is ensure the chosen area is clean and accessible. Although the specifics vary depending on the size of your water filtration system, you’ll generally need about two square feet of space. You should also remove any nearby items to make sure your installer can get started right away.
- Remove previous filter: If you have an older undersink filter or other system, your installer can remove (and often dispose of it for you). They will also turn off your water supply, so there’s no need to do that yourself unless you’re told ahead of time that this is needed.
- Connect the new system: Next, your Culligan technician will connect the new system to your water line and drain. If your filter requires a separate faucet, as is often the case with reverse osmosis (RO) water solutions, they’ll install that, too. Your water specialist will work with you ahead of time to decide whether this faucet will replace an existing fixture, like a soap dispenser, or if a new hole in the counter is necessary. With Culligan, you also have the option to get filtered water directly from your existing tap instead of installing a second faucet, switching from regular to RO water by using a button that wirelessly connects with your system.
Finally, it’s time to ensure everything’s fitting properly, from the filter housing to the sink connections. If the system checks out, your installer will move on to the final step: teaching you how to use your new system.
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How to use your water filtration system
In many cases, your drinking water filtration system’s tank will come already filled with freshly filtered water. That means you can start enjoying great-tasting tap water right away. However, your water expert will still show you how the system works, including all the details about its operation and maintenance.
They’ll also walk you through any special features — especially if you choose a smart reverse osmosis system, which gives you more control over the treatment process. If your system includes smart features, your installer can help connect it to the Culligan Connect app, where you can monitor:
- Contaminants reduced
- Filter life remaining
- Drinking water usage
- Single-use plastic bottles saved
Generally, the installation process lasts between one and two hours. That’s all it takes to get better drinking water quality for your home.
Benefits of professional water filter installation
In an era where everything can be researched online and DIY is a common hobby, you might wonder why you can’t install your own house water filtration system. The truth is that this can be a difficult, confusing and potentially expensive process without help.
Professionals aren’t just doing the work for you. They’re bringing experience, expertise and equipment that you don’t have access to. That means they introduce far more value than simply taking a task off your to-do list.
Here’s a look at just a few benefits of having a professional installation:
System expertise
Your installer will be familiar with every Culligan water solution. They’ll know what the installation process should look like and how to ensure your new system performs at its best. What does that mean for you? Simple: They don’t have to delay the process for the time-consuming research you might need to perform if you tried to DIY.
Years of experience
From product design to customer service, every Culligan team has experience making water treatment simple, accessible and efficient. Your local expert will be comfortable with each step of the installation process and can help avoid potentially costly issues with plumbing, water line connections and more.
Additional support
You always know whom to call if you need support before, during or after your installation. Your installer can answer questions while they put the system in place; your local Culligan team will address anything that comes up later, from troubleshooting and app support to upgrades and replacement filters.
Time and money savings
Professional installation means you don’t have to worry about the details. You’ll save time and hassle by letting the experts do what they’ve been trained for — and along the way, you’ll learn how to get even more out of your Culligan drinking water filtration system.
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What to know before your water filter installation
Installation is one of the final steps in a larger water treatment journey. Here’s what you should know before you get to this point:
#1: Your current water quality
While there are DIY water quality tests available, this is another time when expert support is often the better path. Professional water testing will give you vital information on potential contaminants, hardness and more.
#2: Your options
Your water test results will inform your treatment decisions. For example, reverse osmosis and water softening systems
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#3: Pricing
It’s important to know the cost of water treatment systems — not just the initial price, but the lifetime expenses, too. Ask your water expert for all the details, including any expected maintenance or filter replacements.
How do I prepare my home for a drinking water filter installation?
Preparing for a drinking water filtration system installation is usually straightforward and your Culligan specialist will confirm the details during your initial consultation. In most homes, preparation comes down to confirming the installation location, clearing access and reviewing any site-specific requirements.
How to prepare for a drinking water filter installation
| How to prepare for a drinking water filter installation | |
|---|---|
| Step 1 | Confirm where the system will be installed. Drinking water filtration systems are typically installed at the point of use, most often under the kitchen sink or at the primary drinking water tap. That said, it also can be installed in a basement, crawl space or in an adjacent cabinet. Placement can vary based on cabinet space, plumbing configuration and whether the system uses a dedicated faucet. |
| Step 2 | Clear the installation area. Clear the cabinet area beneath the sink or the installation location so the installer can access plumbing connections and work safely. |
| Step 3 | Check for nearby access points. Locate the cold water shutoff valve under the sink or the nearest shutoff serving the installation area. Some systems, including many reverse osmosis systems, may also require access to an outlet or space for a storage tank. |
| Step 4 | Ask about home-specific considerations. Older plumbing, limited cabinet space or nonstandard fittings can affect installation planning. You typically do not need to make plumbing changes yourself unless your installer specifically advises it. |
| Step 5 | Review next steps before installation day. A quick check-in can confirm timing, placement and any final preparation needed. Professional installation supports reliable water flow and helps limit avoidable issues. |
Water filter installation FAQs
These quick answers cover common questions about where drinking water filtration systems are installed, what preparation may be needed and what to expect on installation day.
Where is a drinking water filtration system typically installed?
Most systems are installed under the kitchen sink or at the primary drinking water tap, but other options include basements, crawl spaces or an adjacent cabinet.
Do I need to clear space before installation?
Yes. Clear the installation area so the installer can access plumbing connections and work safely.
Do I need to locate the shutoff valve before the installer arrives?
It may help. Most under-sink installations use the cold water shutoff valve beneath the sink.
Will a drinking water filtration system need access to an outlet?
Some do, depending on the system and any smart features. Your installer can confirm requirements during scheduling.
Can older plumbing or limited cabinet space affect installation?
Yes. Older plumbing, tight cabinet space or nonstandard fittings can affect placement and installation approach.
Will installation require drilling for a dedicated faucet?
Sometimes. Many reverse osmosis systems use a dedicated faucet, though some setups can deliver filtered water through an existing tap depending on the configuration.
How long does a professional drinking water filter installation take?
Many installations take about one to two hours, though timing depends on your plumbing and system type.
Can I install a drinking water filtration system myself or should I use a professional?
Some homeowners attempt DIY installation, but professional installation helps support proper system performance and can help avoid issues related to plumbing connections, water pressure and setup requirements , especially when you are installing a reverse osmosis system.
Water filter installation made easy
If you’re ready for better drinking water, it’s time to turn to the experts. From your first water test to filtration system installation and beyond, your local Culligan team is ready to help you take control of your tap. That means you’ll never have to rely on DIY solutions and the potential issues that come with them.
Get started today by scheduling your free, in-home water test and consultation.
*Contaminants may not be present in your water.