
Water Filtration & Treatment
Reduce limescale, protect boilers and enjoy better-tasting drinking water with correctly specified filtration systems installed by experienced engineers in Sevenoaks and Kent.
ABOUT THIS SERVICE
Water Filtration & Treatment Done Right
Cleaner, scale-free water throughout your home that protects boilers and appliances, reduces cleaning time and delivers better-tasting drinking water — that’s the outcome of correctly specified water filtration and treatment. Pro Plumbers Ltd installs whole-house softeners, under-sink filters and reverse-osmosis systems across Sevenoaks and nearby Kent towns. We size and position systems to match property type — from period cottages and oil-heated rural homes to modern flats — and carry Gas Safe, OFTEC and Worcester Bosch accreditation to ensure safe, warranty-friendly installations.
Minimum charge £90 + VAT, including the first hour on site. Larger jobs get a fixed, no-obligation price.

OUR PROCESS
How It Works
01
Site survey & water test
Engineer inspects pipework, boiler type and water usage, then runs a hardness and contaminant test to determine the right system.
02
Specification & quote
We recommend whole-house or point-of-use solutions, show placement options, explain maintenance needs and provide a written quote.
03
Install, commission & advise
Installed to manufacturer and Gas Safe/OFTEC standards, systems are commissioned on-site, user-trained and registered for warranty.
BENEFITS
Why Choose us for Water Filtration & Treatment?
Protects boilers & appliances
Reducing limescale improves heat transfer and lowers failure risk — extending the life of boilers, washing machines and dishwashers.
Tailored system for your property
We match softeners, filters or reverse osmosis to water test results and property type, from gravity-fed systems to mains-fed modern builds.
Trusted, compliant installations
Gas Safe and OFTEC-registered engineers with Worcester Bosch accreditations deliver safe, warranty-friendly installs and a 1-year workmanship guarantee.
Whole-house softeners are fitted where limescale affects radiators, valves and cylinder surfaces. These units treat all incoming water and regenerate automatically with salt; sensible siting and correct pipework isolation protect boiler controls and immersion elements. For oil-heated rural properties we co-ordinate with OFTEC-registered engineers to ensure compatibility with gravity-fed tanks and non-standard cold-water supplies.
Point-of-use and drinking-water options include under-sink carbon filters and reverse-osmosis units that remove chlorine, sediment and taste-impairing impurities. We position point-of-use units so installation is serviceable and food-safe, and give clear maintenance guidance — salt top-ups for softeners and cartridge or membrane change schedules for filters and RO systems.
OUR ACCREDITATIONS





What Our Customers Say
“Had the pleasure of having my heating system replaced by Mikey. He was really helpful and informative with any questions I asked. He was also very clean and professional, would highly recommend these guys, especially Mikey.”
“I called up Dave to fix a leaking pipe under my sink. He was so professional, worked efficiently, and cleaned up afterward. The price was exactly as quoted. I'm very satisfied with the service.”
“I can't say enough good things about Pro Plumbers! From start to finish, the service was outstanding. It's rare to find a team that's this reliable and committed to doing the job right the first time.”
FAQ
Frequently Asked Questions
How do I know if my home needs a water softener?
If you see scale build-up on taps and showerheads, notice white residue on kettles or get frequent limescale-related boiler faults, a softener will help. We perform a hardness test during the site survey and advise whether whole-house treatment or localised filtration is the better solution.
Will a water softener harm my boiler or appliances?
No — when installed correctly softeners prevent limescale that damages heat exchangers. We install to manufacturer guidance, protect boiler sensors and controls, and document any adjustments required for warranties or manufacturer servicing.
What maintenance do filtration systems need?
Maintenance varies: softeners need occasional salt top-ups and an annual health check, carbon filters normally need replacing every 6–12 months depending on use, and reverse-osmosis membranes are checked and replaced per manufacturer guidance. Pro Plumbers Ltd offers servicing and reminders as part of planned maintenance.
Can reverse osmosis be used for the whole house?
Whole-house RO is unusual because it produces high volumes of waste water and requires large storage; it’s typically used for drinking and cooking at point-of-use. We’ll advise the most practical combination — whole-house softening with under-sink RO for drinking water — during the survey.
Will treating my water affect warranties or boiler servicing?
Properly installed treatments can protect warranties by preventing limescale-related faults; we work with Worcester and Vaillant guidance and register installations when required. We also recommend regular boiler servicing and can co-ordinate treatments with power-flushing or cylinder maintenance to keep heating systems in peak condition.
Water Filtration & Treatment Near You
Other Services We Offer
Fast Callouts, 7 Days a Week
Minimum charge £90 + VAT, including the first hour on site. Larger jobs get a fixed, no-obligation price.
