Reverse-Osmosis Drinking Water in Livermore, CA
An under-sink reverse-osmosis (RO) system gives you bottled-water-quality drinking water at the tap and in your fridge — without the plastic waste. RO reduces a wide range of contaminants that simple carbon filters leave behind. The Otter Squad matches the system to what you want out of your water and routes it to a dedicated faucet and, on compatible refrigerators, to the fridge dispenser and ice maker. We are a family-owned, union contractor licensed C-36 and C-42 under CSLB #1053855. Clear Lines or You Don't Pay a Dime.
The Otter Squad Guarantee
Clear Lines or You Don't Pay a Dime. If we can't clear your blocked line using our standard drain clearing procedure, you don't pay for the attempt.
Reverse-Osmosis Services:
- Under-Sink RO Installation
- System Matched to Your Water
- Dedicated Faucet Install
- Fridge Dispenser & Ice Maker Tie-In
- Prefilter & Membrane Replacement
- Service Cadence Setup
Why an RO System
An under-sink RO system is the most effective way to get bottled-water-quality drinking water at home — without the plastic waste or the recurring cost of bottled water.
- You buy bottled water for drinking and want to stop the cost and plastic waste.
- Your tap water tastes or smells of chlorine, even after a whole-house filter.
- You want cleaner ice and water from a compatible refrigerator dispenser.
- You are concerned about dissolved solids, lead, or other contaminants a carbon filter leaves behind.
- You want great-tasting water at a dedicated tap for cooking and drinking.
How an RO Install Runs
We match the system to what you want out of your water and route it to the tap and fridge.
- 1
Match the system.
We match the RO stages and membrane to what you want out of your water — taste, dissolved solids, lead, or other concerns.
- 2
Install under the sink.
We install the RO manifold and storage tank under the sink, with a dedicated faucet at the counter.
- 3
Tie in the fridge, if compatible.
On compatible refrigerators, we route RO water to the fridge dispenser and ice maker so your ice is as clean as your drinking water.
- 4
Set a service cadence.
We set the prefilter, postfilter, and membrane replacement cadence so performance stays consistent over time.
What Affects the Cost of an RO System
An RO install is bid per job. What we promise is a free assessment and a firm written bid before any work begins. These are the factors that move the number.
- •The number of stages and the membrane capacity you choose.
- •Whether the system ties into a dedicated faucet only or also a compatible refrigerator.
- •The under-sink space and any plumbing rework required to fit the manifold and tank.
- •A whole-house pre-filter, which extends membrane life on sediment-heavy water.
- •Ongoing cartridge and membrane replacement cost, set on a service cadence.
RO, Whole-House Filtration, or Both?
They serve different purposes, and many Tri-Valley homes use both. We size and price each honestly.
Reverse osmosis gives you bottled-water quality at one dedicated tap and the fridge. Whole-house filtration treats every tap for chlorine, sediment, and taste — see our whole-house filtration page. Softening removes the hardness that causes scale — see our water softener page. Many homes stage a softener, a whole-house filter, and an under-sink RO unit together — we size the combination to your water and your goals.

Alfredo Ortiz
Owner, The Otter Squad · C-36 & C-42 #1053855
I am Alfredo Ortiz, and I have spent more than 30 years in the plumbing trade. The Otter Squad is my family's company, Latino-owned, licensed under CSLB #1053855 for C-36 plumbing and C-42 sanitation, and staffed by union, UA-trained crews. An RO system is the cleanest drinking water you can get at home — I match the system to what is actually in your water and route it to the tap and the fridge, and I set the service cadence so it keeps performing. Call me any time, day or night, at (925) 397-2271.
Alfredo Ortiz · Owner, The Otter Squad · C-36 & C-42 #1053855 · 30+ years in the trade
How we work
Diagnose first
We find the real problem before we quote, so the fix matches what is actually wrong, not a guess.
Explain clearly
We show you what we found in plain language, with photos or camera footage.
Honest options
Real choices and upfront pricing, and we point you to the honest path, not the priciest one.
Done the right way
Tidy, licensed work, backed by the Otter Squad Guarantee.
Why Livermore chooses The Otter Squad
We're family-owned and Latino-owned, led by Alfredo Ortiz with 30+ years in the trade, fully licensed (C-36 & C-42 #1053855), bonded, and insured. We diagnose the real problem first, then give you honest options and upfront pricing before any work begins.
Every reverse-osmosis install is backed by the Otter Squad Guarantee: Clear Lines or You Don't Pay a Dime.
Request RO Installation
Prefer to talk now? Call (925) 397-2271. We answer 24/7.
Frequently Asked Questions
Problems With Water? Call the Otter.
We answer 24/7. Diagnose first, honest options, upfront pricing.
