Whole-home water softeners
Salt-based ion exchange softeners for hard water. Drops scale, makes soap actually lather, extends water-heater life by 50%.
Water filtration —
for what's actually in your water.
We test your water first, then recommend a filter that solves your specific problem. No 'one big system fits all' nonsense.
- Free water test
- Softener, carbon, RO, UV
- Master Plumber install
Master Plumber #MP176295.0 on GoogleOpen 24 hours
Same-day callback
Get a quote on water filtration
30 seconds. Rob calls you back personally.
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What we install
Whole-home & point-of-use.
Massachusetts water varies a lot — some homes need a softener, some need iron removal, some need carbon for chlorine taste. We test first, then size the system to the actual problem.
Carbon filtration
Whole-home or point-of-use carbon for chlorine taste, chloramines, and many organic compounds. Common on town water.
Iron & sulfur removal
For well water with red staining or a rotten-egg smell. Catalytic systems work without chemicals; aeration + filter for higher levels.
Reverse osmosis (kitchen)
Under-sink RO for drinking and cooking water. Removes nearly everything — replaces bottled water.
How it works
From phone call to walkthrough — done right.
1. Test the water
Free in-home test for hardness, pH, iron, chlorine, TDS. Lab analysis if needed — we don't guess.
2. Recommend the right system
Sized to your water and your usage. We'll tell you if you don't actually need a system.
3. Clean install
Bypass valves, isolation valves, drain line, electrical (where needed). Done so you can service it without calling us back.
4. Walkthrough + maintenance plan
Salt schedule, filter-change schedule, what to watch for. We send a reminder when it's time for service.
Why Competitive
We don't promise quality. We deliver it.
We size it for your house, not the catalog
Manual J load calc on every install — most contractors skip it. Wrong size = short cycling, comfort issues, and 20% wasted fuel.
Mass Save rebates handled for you
We're a registered Mass Save partner. Up to $10,000 in rebates on qualifying heat pumps and high-efficiency boilers — we file the paperwork.
Owner on every install
Rob is a Master Plumber (MA #MP17629). He's on every install personally — not a sales rep, not a sub.
Clean, labeled, serviceable
Our installs are diagrammed, labeled, and tidy. The next tech who walks in (even if it's not us) can service the system without guessing.
FAQ
Common questions about water filtration.
Do I need a water softener?
If your water tests above 7 grains per gallon hardness AND you have scale on fixtures or short water-heater life, yes. Below that, you might just need a carbon filter or nothing.
Are softened-water and salt-free systems the same?
No. Salt-based softeners actually remove hardness ions. 'Salt-free conditioners' just keep ions in suspension and have mixed real-world results. We're honest about which one solves your problem.
How much do whole-home filtration systems cost?
Softener: $1,800–2,800 installed. Carbon: $1,200–2,000. Iron/sulfur: $2,500–4,500. RO under-sink: $600–1,200. We quote written after testing.
More plumbing services
Other plumbing work we handle.
Reviews on Google5.0Don't take our word for it. Take theirs.
From neighbors across Lakeville, Plymouth, Newton, Needham, Wellesley and beyond.
“Rob's work is top notch. I'm a picky engineer. His choice of equipment, materials and his workmanship was excellent. In the bidding process, Rob was responsive, honest, competent, creative, and respectful.”
“He answered his phone at 6:30am. Within 15 minutes, Rob called and told me how to repair it myself — he did not take advantage of the situation. Saved me $300.”
“Rob was very professional and did an excellent job. Far surpassed my expectations. Will use him again in the future.”
“I recommend Rob with my highest level of support! Rob has installed multiple systems for me over the years.”
“His professionalism and craftsmanship went above and beyond what we expected. Highly recommend!”
“Great about keeping me in the loop. Very polite & respectful. Rob cleaned up on his way out — even brought his own vacuum.”
“Professional, very neat and orderly. Came when he said he would and did a great job.”
“Competitive Plumbing and HVAC was very responsive. I consulted with them and they did exactly what I wanted.”
Read more reviews on GoogleWhere we've done work
Based in Lakeville. We serve it all.
Every red dot is a job we've completed. We're rooted in Lakeville and travel across Massachusetts — don't see your town? Call us, we probably cover it.
- Lakeville, MAHQ
- Berkley, MA
- Boston, MA
- Plymouth, MA
- Bourne, MA
- Sandwich, MA
- Newton, MA
- Needham, MA
- Wellesley, MA
- Headquarters
- Service area
- Past job
Open right now
(508) 944-7623Ready to get it done right?
Call us. We answer 24/7 — and we'll tell you straight up what it takes to fix it.