Combimate Installation in Newbury & Berkshire
APS installs and replaces Combimate scale-reducing systems across Berkshire. A Combimate doses the incoming water with food-grade polyphosphate to help reduce the formation and adhesion of limescale — helping protect boilers, cylinders, heat exchangers, valves and pipework without installing a full salt-based water softener. The water remains hard; Combimate does not remove calcium or magnesium.
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Benefits of a Combimate System
Berkshire has hard water, which encourages limescale on heating surfaces and fittings. A Combimate scale-reducing system doses the supply with food-grade polyphosphate to help reduce how scale forms and sticks — supporting boilers, cylinders, heat exchangers, valves and pipework. It does not soften water or remove hardness minerals.
- Helps protect boilers, cylinders, heat exchangers and valves
- Helps reduce scale adhesion in pipework and appliances
- Compact and suitable for many properties
- Does not require salt top-ups
- Useful alternative where a full water softener is not wanted
- Suitable for domestic, landlord and appropriate light commercial use
Common Signs You Could Benefit From a Combimate
A Combimate will not soften water, but it can be a practical option if you want additional protection for heating and plumbing plant in a hard-water area. You may want to discuss Combimate installation if you notice any of the following:
- Frequent limescale build-up on kettles and appliances
- White deposits around taps
- Repeated boiler or cylinder scale-related issues
- You live in a hard-water area such as Berkshire
- You want extra protection for heating and plumbing without a full salt-based water softener
How Combimate Works
Combimate is fitted on the incoming cold-water supply. It doses the water with food-grade polyphosphate, which helps reduce the formation and adhesion of limescale on boilers, cylinders, heat exchangers, valves, pipework and fittings.
Important: the water remains hard. Combimate does not remove calcium or magnesium and does not provide genuinely softened water. Its role is scale-control support for the system — not whole-home soft-water benefits.
The cartridge or media needs periodic replacement so dosing continues to work as intended. APS explains the maintenance schedule for your unit at handover. If you prefer soft water for bathing, washing and cleaning, see our Water Softener Installation service instead.
Combimate vs Water Softener
Both options address hard-water concerns, but they work differently. Combimate doses with food-grade polyphosphate and leaves the water hard while helping reduce limescale adhesion. A water softener removes hardness minerals and provides genuinely softened water.
Combimate / Scale Reducer
- Doses with food-grade polyphosphate
- Helps reduce limescale formation and adhesion
- Water remains hard — does not remove calcium or magnesium
- Compact installation with no salt top-ups (polyphosphate media replaced during routine servicing)
- Aimed at protecting boilers, cylinders, heat exchangers, valves and pipework
- Often suitable where space is limited
Water Softener
- Removes hardness minerals
- Provides genuinely softened water
- Greater whole-home soft-water benefits
- Requires salt top-ups
- Usually needs more installation space
- Better for softer water for bathing, washing and cleaning
Combimate Installation and Replacement
Whether you need a first-time Combimate installation, Combimate replacement on an ageing unit, or a Combimate plumber checking an existing scale reducer, APS handles the work neatly and safely for homes, landlords, offices and small or light commercial premises where the system is suitable.
We can install a new Combimate, replace an old or damaged unit, replace cartridges or media where appropriate, check existing pipework and isolation valves, recommend the correct location, and remove and dispose of the old unit where required. Scale reducer installation is planned around your rising main, available space and water use.
Where scale has already affected heating plant, we can also advise on boiler servicing, boiler repairs or unvented cylinder work alongside Combimate protection — so the wider system is looked after, not just the scale reducer.
Our Combimate Installation Process
Discuss your property and hard-water concerns
Understand where scale is affecting heating or plumbing plant and whether Combimate or a softener is the better fit.
Inspect the incoming water supply
Check the rising main, pipework, space and practical installation location.
Recommend the right scale-reducing solution
Confirm whether a Combimate is appropriate or whether a full water softener would better meet soft-water goals.
Install, test and explain maintenance
Fit the system neatly, check for leaks and explain future cartridge or media replacement requirements.
What’s Included with APS Combimate Installation
Property and plumbing assessment
A clear review of supply pipework, space and practical constraints before work begins.
Advice on system suitability and positioning
Honest guidance on Combimate versus water softener — including that Combimate leaves water hard.
Professional connection to the incoming water supply
Neat connection into the rising main with care for existing fittings and finishes.
Required bypass or isolation fittings
Isolation and bypass arrangements fitted where needed for safe servicing and future maintenance.
System setup and leak testing
Commissioning checks so the unit is secure, leak-free and ready for everyday use.
Maintenance and cartridge-replacement guidance
Clear handover advice on media or cartridge replacement so polyphosphate dosing continues as intended.
Neat, insured workmanship
£5 Million Public Liability Insurance and tidy workmanship on every installation.
Removal of an existing unit where agreed
Old Combimate or scale-reducer units removed and disposed of responsibly when included in the quote.
Combimate scale protection specialists
Not every property has space or drainage for a full water softener. Combimate still protects boilers and heating from limescale. APS installs and maintains Combimate units across Newbury and Berkshire for homes and light commercial sites, and will say if a softener would serve you better.
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Combimate Installation FAQs
What is a Combimate?
A Combimate is a scale-reducing system fitted to the incoming water supply. It doses the water with food-grade polyphosphate to help reduce the formation and adhesion of limescale on boilers, cylinders, heat exchangers, valves and pipework. It does not remove hardness minerals.
Does a Combimate soften water?
No. A Combimate does not remove calcium or magnesium, so the water remains hard and is not genuinely softened. If you want soft water for bathing, washing and cleaning, a salt-based water softener is the correct choice.
How often does a Combimate need servicing or refilling?
Maintenance frequency depends on the model, household water usage and manufacturer guidance. Cartridge or media replacement is typically required periodically so polyphosphate dosing continues to work as intended — we explain the schedule for your unit at handover.
Should I choose a Combimate or a water softener?
Choose a Combimate when you want compact scale-control support for heating and plumbing plant without salt top-ups, knowing the water will still be hard. Choose a water softener when you want hardness minerals removed and whole-home soft-water benefits. APS can assess your plumbing and advise which option suits your property.