Water systems, engineered for Irish homes.
Every system Keystone Water supplies and installs — drinking water, softening, whole-home treatment and components. Filter by category, concern and price; each one is matched to your water and quoted after a free test.
18
Systems in the range
4
Treatment categories
13
Counties served
5-yr
Warranty as standard
Free water test
We test your supply at your home and explain it plainly — no cost, no obligation.
Engineered & installed
Each system is sized for your water and fitted by Keystone Water's own engineers.
5-year warranty
Every system is backed as standard, for genuine long-term peace of mind.
Servicing & aftercare
Ongoing support and servicing for the full life of your system.
18 products
Water treatment is never one-size-fits-all. Each system is specified for your water and your home, and quoted honestly — so you invest only in what genuinely solves the problem.
Not sure which system is right?
That is what the complimentary water test is for. We confirm what your water needs, and quote only what genuinely solves it.
No obligation
Honest advice, zero pressure
Same-week visits
Across 13 counties
5.0 rated
By Irish homeowners