Clean, considered water for every tap in your home.
For over twenty years, Keystone Water has tested, treated and maintained the water in Irish homes and businesses — removing iron, manganese, limescale and the taste of hard or well water, across Meath, Cavan, Kildare and beyond.
Quality water systems, made attainable.
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Trusted partners
Kinetico Water Systems & Hydron
Accredited, certified & trusted across Ireland
Two decades of getting Irish water right.
Keystone Water grew out of Sean Blessington's plumbing and heating business, founded in 2003. As more homes asked for help with iron, hard water and well-water problems, filtration became a specialism in its own right.
That focus has never changed. Quality products and careful installations are the foundation of everything we do — for homes and businesses across the Irish midlands and east.
Your body is, very nearly, water.
From the air in your lungs to the strength in your bones, water is the medium life runs on. Its quality is not a detail — it is the foundation of a healthy home.
Treatment for every water quality problem.
Irish water carries very particular challenges — iron and manganese in well supplies, hardness and limescale on the mains. Every system we install is engineered for the water it treats.
Every system, installed by people who stand behind it.
We do not sell water systems and disappear. Keystone Water tests, specifies, installs and maintains — the same trusted hands, from the first visit through every year that follows.
A clear path from problem to clean water.
No pressure and no jargon — a considered, four-step process refined over twenty years.
Free water test
We visit, test your water on-site and explain exactly what is in it — in plain language, with no obligation.
Clear recommendation
You receive a straightforward written recommendation: the right system for your water, and the reasons behind it.
Professional installation
Our certified team installs and commissions your system properly — installation is included, not an extra.
Ongoing care
Annual servicing and responsive support keep your water right, backed by a 5-year warranty on every system.
Treated water, stage by stage.
- Iron & manganese removal
- Softening
- Carbon polishing
- Ultraviolet disinfection
- Reverse osmosis at the tap
Iron & manganese removal
Oxidising filters strip dissolved iron and manganese before they can stain fixtures or taint your water.
Stage 1 of 5
Treated water, stage by stage.
A whole-home system treats your water in sequence — each stage resolving one problem — so clean, soft water reaches every tap.
- 01
Iron & manganese removal
Oxidising filters strip dissolved iron and manganese before they can stain fixtures or taint your water.
- 02
Softening
Ion-exchange softening removes the calcium and magnesium behind limescale and poor lathering.
- 03
Carbon polishing
Activated carbon lifts chlorine, odours and the organic compounds that affect taste and clarity.
- 04
Ultraviolet disinfection
For private wells, ultraviolet light neutralises bacteria and viruses, with no chemicals added.
- 05
Reverse osmosis at the tap
A dedicated drinking-water tap delivers ultra-pure water for drinking, cooking and coffee.
Your water is unique to your home.
No two supplies are the same. Whether you are on the mains or a private well, the only way to treat water properly is to know exactly what is in it first.
200–400
mg/l hardness
Much of Ireland sits well above the 150 mg/l hard-water threshold — enough to scale kettles, dull laundry and shorten the life of every appliance that heats water.
Up to 15
ppm iron
Private wells across Meath and Cavan commonly carry dissolved iron — the cause of the orange-brown staining seen on baths, sinks and clothing.
Alongside iron
manganese
Manganese often occurs with iron in Irish groundwater, leaving black staining on fixtures and a distinct metallic taste.
Annually
well testing
Private wells are not monitored like the mains supply. Yearly testing for bacteria is advised — and ultraviolet disinfection treats what that testing uncovers.
Systems engineered for Irish water.
Each system is matched to your water and quoted after a free test — so you invest only in what your home genuinely needs.
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Trusted in Irish homes, one install at a time.
Keystone Water is a family-run team — and it shows in the care customers describe. Catherine in the office, Mick on the tools, Sean leading the work. These are their words, verbatim from Google.
5.0
Absolutely thrilled with our new RO water system and water softener. The RO system gives us clean, great-tasting water right from the tap — perfect for drinking, cooking and even coffee. The water softener has completely transformed our showers and laundry. The installation team was professional, on time, and explained everything clearly. Highly recommend this company if you are looking to improve your water quality at home.
From the initial contact and sales call to the installation and after-sales service from the guys and girls at Keystone, I am so happy with our softener and filtration system. Everything was performed to an extremely high standard and the difference in our water quality is so noticeable. I would not hesitate in recommending them to anyone looking to upgrade a system or, like ourselves, having a softener fitted for the first time.
Excellent. We had a wonderful experience. High quality. Amazing service and staff. Fair price. Everything on time. Highly recommended.
We had a water softener system and a drinking water system installed. Absolutely brilliant service from beginning to end. Also, Catherine is an absolute pleasure to deal with. Great company.
Called to enquire about a reverse osmosis system and spoke to a lady named Catherine, who was so helpful and answered any questions I had. She organised a free, no-obligation call-out assessment to see if the system is suitable for my needs.
Very happy with the service and product. Streamlined fitting and everything from first visit to instalment. Great customer service. Love the product — thank you Catherine and Mick who fitted it.
The quality of water since we got a filter installed is just brilliant. I cannot recommend Sean highly enough.
Love the water softener and filter. Excellent customer service and a pleasure to do business with.
Fast and professional service. They work around your schedule — lovely people to deal with.
Top class service from start to finish. Highly recommended.
Excellent service. Would highly recommend Keystone.
Outstanding service and quality.
Begin with a complimentary water test.
We visit your home, test your water on-site, and explain the results clearly — with a considered recommendation and no obligation to proceed.
No obligation
Honest advice, zero pressure
Same-week visits
Across 13 counties
5.0 rated
By Irish homeowners