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Mains-Fed Water Coolers for Offices & Workplaces

Culligan mains-fed water coolers are a simple, bottleless way to provide chilled, hot and sparkling drinking water in offices and workplaces. Our plumbed-in water dispensers help businesses reduce the need for bottle storage, lower plastic waste and enjoy reliable hydration with professional installation, servicing and flexible rental options.
Free Installation
3 Months Free Rental
Reduce single-use plastic
Trusted by 20,000+ UK businesses

What is a mains-fed water cooler?​

A mains-fed water cooler, sometimes called a plumbed-in or bottleless water cooler, is a dispenser connected directly to your building’s mains water supply. Rather than using large bottles, it filters water at the source to provide fresh drinking water on demand.

This makes mains-fed water coolers a practical option for offices and busy workplaces that need a dependable supply of drinking water throughout the day. Because they are connected to the mains, they serve as a practical alternative to bottled water coolers without the need for bottled water delivery, helping businesses save space and reduce the hassle of storing and changing heavy water bottles.

 

Why choose a mains-fed water cooler for your business?

Select:

Great for busy offices

Mains-fed water coolers are ideal for offices, staff kitchens and breakout spaces where teams need easy access to fresh drinking water throughout the day. With no bottles to change or store, they provide a cleaner, more practical hydration solution for busy workplaces.

Reasons business c7 1

Fixed-cost workplace hydration

Because mains-fed water coolers connect directly to your mains supply, they offer a predictable way to manage workplace hydration. Businesses can avoid the ongoing logistics of bottled water and benefit from a more consistent day-to-day setup.

Reasons business c2 02

Fewer deliveries, less hassle

A mains-fed water cooler keeps water flowing automatically, with no heavy lifting, no bottle changes and no need to monitor stock levels. Once installed, it helps reduce disruption and keeps things simple for your team.

Reasons bottled water 2

Different water options

Choose from chilled, ambient, hot and sparkling water depending on the needs of your workplace. Whether you want a simple drinking water cooler or a more flexible dispenser, mains-fed models can be tailored to different spaces and teams.

Reasons business c7 8
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Purification Excellence

Exceptional water quality
Carbon filtration ensures crystal-clear, great-tasting, and superior quality water.
Certified microbiological purity
Patented and certified Firewall® UVC purification guarantees microbiologically safe water, free from up to 99.9999% bacteria, 99.99% viruses, and 99.9% cysts.
Ice-cold refreshment, sparkling included
Ice Bath water cooling system delivers high volumes of ice-cold still and sparkling water at near-freezing temperatures (up to 17l/h).

What mains-fed dispenser is right for you?

From space-saving countertops to systems designed for high-demand areas, our selection of plumbed-in water dispensers cover whatever requirements you need.

Space-saving Countertops

Ideal for smaller spaces

Our affordable, space-saving dispensers are perfect for small offices and crowded spaces.

  • Cold & Ambient water options
  • Free delivery & installation
  • Flexible rental terms

Freestanding dispensers

Most popular

Our range of freestanding dispensers are stylish, simple-to-use & suited for growing businesses.

  • Cold, Hot & Ambient Water
  • Free delivery & installation
  • Servicing plans available

High demand & heavy use

Designed for 50+ users

Our C7 model is designed for busy spaces, offering purification & filtration at the touch of a button.

  • Cold, Hot, Ambient & Sparkling options
  • Free delivery & installation
  • Uses our patented Firewall technology®

How does a mains-fed water cooler work?

A mains-fed water cooler connects directly to your building's water supply and filters water on demand. Here's how it works from installation to your first glass:
Plumbed in by a Culligan engineer
Your cooler is connected directly to the mains water supply. No bottles, no tanks, and your machine is up and running in less than 2 hours.
Water filtered at source
Mains water passes through the built-in filtration system, removing impurities and improving taste before dispensing.
Chilled, heated or sparkling on demand
The unit chills, heats, or carbonates filtered water instantly. Choose from cold, hot, ambient or sparkling at the touch of a button.
Regular servicing keeps it fresh
One of our engineers will be on hand for scheduled sanitisation and filter changes, keeping your water clean and great-tasting.
Get a Quote
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Our range of mains-fed water dispensers for business

Discover our range of water coolers for businesses that are fed directly from your main water supply. Made to provide employees with pure, refreshing, and great-tasting water from a stylish and affordable dispenser. Switching to a mains water dispenser for office use or any other workplace means no storage issues and reduced single-use plastic.

Found what you’re looking for?

Get a quote today
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Countertop water coolers and dispensers

Give your workplace access to outstanding pure water in a sleek mains-fed countertop water dispenser. ​Easy to store, space-saving, and high-volume, it’s the perfect machine for the workplace.​

Explore countertop models​

Floor-standing water dispensers

Sleek and modern, our range of floor-standing water dispensers fit seamlessly in your space, across a number of sectors, from offices to gyms and educational facilities like schools and universities. All it needs is a mains source, and at the touch of a button, you get unlimited, filtered water whenever you need it. 

Explore floor-standing models
Installation & Maintenance Service​

A professional service you can rely on

Experience peace of mind with Culligan, your trusted partner for specialist water equipment for over +85 years.

Installation
Our experienced engineers install plumbed-in water coolers across all environments, from offices and schools to hospitals and stadiums.
Maintenance
We regularly sanitise your unit and replace filters to keep your water clean and your system running efficiently.
Call-outs
If issues arise, our responsive support team handles repairs or replacements quickly, so you stay up and running with minimal disruption.

What our customers say about us:

Excellent
Rated 4.7 out of 5 stars

Rated 4.7 out of 5
Based on 11162 reviews

Ready to get in touch with our experts?

Fill in our quick form and we’ll be in contact to help guide you through your query. No obligation, no risk.

  • We’ll recommend the right setup for you
  • We’ll arrange delivery & installation
  • We’ll tailor a plan to your budget
Online Deal 3 Months Free Rental

On our full range of bottled & plumbed-in water dispensers – get in touch today to claim your offer!

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    Plumbed-in & bottleless water dispensers for every workspace

    From small startups to large enterprise sites, our mains-fed water coolers are installed across a wide range of sectors. Find out how Culligan serves your industry:

    Offices

    Chilled and hot water on demand for teams of all sizes. Countertop and freestanding options for open-plan and individual floors.

    Education

    High-volume, durable dispensers for schools, colleges and universities. Safe, filtered water for staff and students.

    Healthcare

    Advanced filtration units meeting hygiene standards for hospitals, clinics and care homes. Regular sanitisation plans available.

    Hospitality

    Sparkling and hot water dispensers for hotels, restaurants and leisure facilities. Branded and unbranded unit options.

    Manufacturing

    Robust freestanding units for factory floors, warehouses and industrial environments. High-capacity models available.

    Culligan Product

    Retail

    Discreet units for back-of-house teams and customer-facing areas. Flexible rental contracts for seasonal retail requirements.

    Frequently asked questions

    Mains-fed water coolers are connected directly to your building’s water supply. They use a filtration system to purify and chill the tap water, providing a continuous supply of clean and filtered drinking water.

    Yes, mains-fed water coolers require a water supply connection. They are typically installed by professionals who connect them to your existing plumbing system. Culligan provides an expert installation service for our range of mains-fed water coolers, which is included in our rental service, and available if you choose to purchase your machine.

    Mains-fed water coolers are suitable for locations with a direct water supply connection. Culligan provides plumbed-in water dispensers for a wide range of environments and sectors that require a steady supply of safe, pure drinking water. We commonly install these machines in offices, schools, gyms, and other commercial and public spaces.

    Yes, our mains-fed water coolers include advanced filtration systems that remove impurities and improve water quality.

    Yes, many of our mains-fed coolers have a hot water dispensing feature for making hot beverages on demand.

    Yes, regular maintenance is recommended to ensure proper functioning and water quality. Filters will need replacement, and the cooler will need regular cleaning. Culligan will provide service and sanitisation of your water cooler as part of our maintenance service, which is included in our mains-fed water cooler rental packages.

    Yes, our mains-fed water coolers are designed to connect directly to your building’s existing water line, meaning you get a continuous supply of fresh, filtered water without the need for any bottles. Plus, our team of experts handles the full installation process, ensuring your cooler is safely connected, fully functional, and ready to deliver clean drinking water straight from the tap.

    Yes, mains cold water can be pumped through a mains-fed water cooler, where it’s filtered and chilled before dispensing. Our plumbed-in water coolers use built-in pumps and advanced filtration technology to deliver cold, great-tasting water instantly at the push of a button. When you choose Culligan’s mains-fed coolers, you can enjoy consistent water pressure and reliable performance, perfect for high-demand environments like offices, education spaces, and other workplaces.

    A mains-fed water cooler offers a convenient and reliable hydration solution for any space. Dispensing water straight from the source, you get an unlimited source of great-tasting, filtered water for all employees, eliminating the need for bottled water deliveries and ultimately reducing your costs thanks to consistent pricing month-on-month.

    Unlimited fresh water from your mains-fed water cooler

    Water dispensing without the need for refills? A Culligan mains-fed water cooler is the perfect choice. At the touch of a button, your business can have access to unlimited fresh, purified water throughout the workday. From cold, ambient, and sparkling water options for easy hydration to hot and extra hot water for coffees and teas, a plumbed-in water cooler is the all-in-one unit built for your business.

    When you choose mains-fed water coolers for offices and workplaces, you get:

    • Get an unlimited source of great-tasting water straight from your mains source. 
    • Consistent pricing month-over-month, regardless of your water usage
    • Including models offering advanced filtration, removing up to 99.9999% of bacteria and viruses from your water
    • Reduced single-use plastic, with each new bottleless water cooler dispenser saving 1,440 single-serve bottles from waste annually
    • Selected dispensers provide up to five water options in a single unit

    Mains-fed water dispensers from Culligan give you a cost-effective and sustainable solution to healthy and simple hydration for employees across all industries. Contact us now to get your free quote.