Safe water, always
Innovation in every sip of water
Culligan employs cutting-edge filtration and purification techniques to guarantee your water’s safety, cleanliness, and exceptional taste.
- We provide a variety of advanced filtration options, including reverse osmosis and carbon filtration.
- With reverse osmosis, you can enjoy water that’s exceptionally pure and free from contaminants.
- And carbon filtration systems effectively remove chlorine, resulting in water that tastes better for drinking and cooking.
Convenient & sustainable
Enjoy clean, filtered water at your fingertips
Experience top-quality, filtered water for your drinks and meals. Say goodbye to bottled water, saving money and helping the environment by reducing single-use plastic waste.
With our systems, you can savour the pure, refreshing taste of water without any lingering aftertaste, making staying hydrated an even more enjoyable experience for your family.
What is Reverse Osmosis (RO)?
RO Purification
- Reverse Osmosis is a water purification process that facilitates the removal of up to 99% of impurities, including chlorine, heavy metals, and harmful chemicals.
- Semi-permeable membranes are used to filter the water that passes through, delivering safe, odourless water to your tap.
- Eliminates the need for single-use plastic water bottles, saving you money and is eco-friendly.
- With reverse osmosis, you can enjoy water that’s exceptionally pure and free from contaminants.
Under Sink RO Water System
Introduce one of our high-quality home water filtration systems to guarantee clean, pure water for your home.

Click & Drink

AC Slim RO

So Clear
Get started in 3 easy steps
How does a Culligan water purifier work?
Experience the efficiency of Culligan’s water purifiers featuring high-performance filtration, powered by activated carbon or reverse osmosis. Water, purified for peace of mind.
These compact units easily fit under your sink and connect to your cold-water supply, ensuring all your tap water is treated, eliminating contaminants and hard water.
Our Click & Drink technology simplifies things. A wireless button near your sink lets you switch between filtered and unfiltered water effortlessly. No more plastic bottles or filter jug refills. It’s convenient and eco-friendly.
Want to know more? Speak to our experts today.
We are 
Culligan delivers innovative, high-quality water solutions to both UK households and businesses, serving over 6 million homes and supplying 2.5 million offices.
With a presence in more than 900 locations worldwide and 85+ years of experience, our mission is clear: to provide superior and sustainable drinking water for everyone, whether at home, at work, or on the go.
Water filtration system service & maintenance
Experience hassle-free installation and upkeep of your new water filtration system with our team of expert engineers, offering nationwide coverage across the UK.
Installation
Trust our skilled technicians with years of experience in installing under-sink water filtration systems. We deliver a friendly and efficient service and can schedule installations to suit your needs.
Maintenance
We carry out meticulous sanitation to ensure flawless, trouble-free operation of your water system. Our proactive maintenance approach ensures consistent performance for your peace of mind.
Call-outs
If you encounter any issues, reach out to our customer service team, and we’ll promptly address them by repairing or replacing your filtration system. Our comprehensive service ensures your home’s filtration remains in top working condition.
Frequently asked questions
Culligan’s systems employ either activated carbon or reverse osmosis membranes to eliminate impurities and contaminants from your tap water.
As your water flows through these filters, they capture and diminish common pollutants, delivering cleaner, purer water right from your tap.
Our systems efficiently eliminate various contaminants such as chlorine, sediment, heavy metals (e.g., lead and copper), bacteria, viruses, pesticides, and diverse chemicals.
The specific contaminants removed vary based on the filter type within your system.
We highly recommend professional installation to guarantee accurate placement, secure, leak-free connections, and peak performance.
Additionally, a professional installer can assist in selecting the ideal location for your system. Our Culligan engineers bring years of expertise in installing various home water systems.
Yes! Under-sink water filtration systems elevate the quality of your drinking water, while water softeners efficiently tackle hard water concerns such as limescale buildup, water spots on dishes, and dry skin.
This combined setup ensures comprehensive water quality enhancement for all your needs: cleaning, bathing, cooking, and drinking.
If you’re looking to make your home more environmentally conscious, consider beginning with under-sink water filtration.
By offering a practically limitless source of filtered water at home, this method diminishes the need for disposable plastic water bottles.
With Culligan water solutions, an estimated 40 billion plastic bottles are saved from global landfills each year.
Here’s what our customers say about us
Get in touch with our experts
Please fill out this form so that we can contact you abour your enquiry. You can also arrange for a free personalised water analysis in your home or through a virtual online demonstration.