Mains Water Filtration Systems

Tired of chlorine taste, limescale headaches, or guessing what’s really in your tap water? Mains Water Filtration Systems treat water at the point it enters your home, with options from whole-house filters to a Reverse Osmosis Water Filter for crystal-clear drinking water.

If you’re noticing chlorine taste, limescale build-up, or simply want cleaner water throughout your home, Mains Water Filtration Systems are designed to treat water at the point it enters your property. From full-house protection to targeted kitchen solutions, many homeowners also explore options like a Reverse Osmosis Water Filter for drinking water, ensuring every drop is safe, fresh, and great-tasting.

Choosing the Best Water Filtration System for Your Home (UK)

Not all homes need the same level of filtration. The right system depends on where you want filtered water, your local water quality, and how much maintenance you’re comfortable with. Below, we break down the most popular options used across the UK.

Whole House Mains Water Filter Systems

A whole house mains water filter system is installed on the main rising water line, filtering all water entering your property. This means cleaner water from every tap, including showers and appliances.

These systems are ideal if you want to reduce chlorine, sediment, and other impurities throughout the home. They’re especially popular in hard water areas, helping protect pipework, boilers, and white goods while improving water quality for bathing and cleaning.

Under-Sink Mains Water Filters for the Kitchen 

If your priority is drinking and cooking water, an under-sink mains water filter for home use is a practical choice. Installed neatly beneath the kitchen sink, these systems filter water at a single tap without affecting flow elsewhere.

They’re cost-effective, discreet, and easy to maintain. Many households pair these with advanced carbon or RO stages for improved taste and peace of mind, making them a popular water filtration system for home UK buyers.

Mains Water Filtration Systems Reviews: What Our Customers Say 

Mains water filtration systems reviews often highlight the same benefits: better taste, reduced odours, and less limescale. Customers also value low maintenance and noticeable improvements in everyday water use.

Real-world feedback consistently shows that choosing a quality system, correctly sized for your home, makes a tangible difference within days of installation.

Mains Water Filtration Systems Cost and Value

Understanding value goes beyond the initial price. Long-term performance, running costs, and reliability all matter.

Installation and Maintenance Costs for UK Mains Filters 

Mains water filtration systems cost varies depending on system size, filtration stages, and installation complexity. Whole house systems typically cost more upfront than under-sink units but deliver broader benefits.

Ongoing costs are usually limited to periodic filter replacements, making them a predictable and manageable investment over time.

Mains Water Filter vs. Screwfix Options: Why Quality Matters 

A mains water filter Screwfix option may suit basic needs, but specialist systems are designed for higher performance, better materials, and longer service life.

Quality systems often offer superior filtration accuracy, better flow rates, and clearer maintenance guidance—key factors for homeowners who want reliable results, not just a quick fix.

Solve Specific Water Issues at the Source

Targeting the problem at entry point ensures consistent results across the home.

Mains Water Filters for Limescale and Hard Water Areas 

Hard water is a common UK issue. Mains water filters designed for limescale reduction help minimise scale build-up, extending appliance lifespan and improving efficiency.

They’re especially beneficial in high-hardness regions where kettles, boilers, and showers are under constant strain.

Removing Chlorine and Heavy Metals from Your Mains Supply 

Chlorine and trace metals can affect taste and odour. Advanced mains water filtration systems use carbon and multi-stage media to reduce these contaminants effectively.

The result is cleaner, fresher water that’s more pleasant to drink and gentler on skin and hair.

FAQs

Can you filter mains water?
Yes, using whole house or under-sink filtration systems.

What water filtration system doesn’t use salt?
Carbon and reverse osmosis systems.

What is the best full home water filtration system?
A whole house mains water filter tailored to your water quality.

Can you put a filter on your main water line?
Yes, whole house systems are designed for this purpose.