Reverse Osmosis System Installation in Maryland
Bottled-quality drinking water from your own kitchen tap. Lifewell installs tankless and 3, 4, 5, and 6-stage reverse osmosis systems for well and city water homes across the Eastern Shore and Anne Arundel County, with a custom faucet to match your kitchen.
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- MDE Certified Water Sampler
Reverse Osmosis Systems We Install
Five systems, from a simple 3-stage to a tankless or remineralizing 6-stage. We recommend one based on your water test, your space under the sink, and what you want out of your drinking water.
No storage tank
Tankless RO
Makes purified water on demand, so there's no tank taking up space under the sink. Faster flow at the faucet and less water sent to the drain.
- Most cabinet space saved
- Needs an electrical outlet under the sink
3 stages
Essential RO
Sediment filter, carbon filter, and RO membrane with a storage tank. A simple, reliable system for city water and softened well water.
- Best value
- Good for chlorine taste and dissolved solids
4 stages
Polished RO
Everything in the 3-stage, plus a post-carbon filter that polishes taste as water leaves the tank.
- Crisper taste
- Popular for coffee, tea, and ice
5 stages
Well Water RO
Sediment, carbon, carbon block, RO membrane, and post-carbon polish. Extra pre-filtration protects the membrane from well water.
- Built for private wells
- Arsenic, nitrate, PFAS, and salt
6 stages
Alkaline RO
The 5-stage system plus an alkaline remineralization filter that adds calcium and magnesium back and raises the pH.
- Smoother, mineral taste
- For people who find pure RO water flat
Compare Our RO Systems
| System | Tank | Remineralizes | Best for |
|---|---|---|---|
| Tankless | No | No | Tight cabinets, fast flow |
| 3-stage | Yes | No | City water, softened water |
| 4-stage | Yes | No | Better taste |
| 5-stage | Yes | No | Private wells |
| 6-stage | Yes | Yes | Mineral taste, higher pH |
Custom RO Faucets That Match Your Kitchen
Your RO faucet sits right next to your kitchen faucet, so it should look like it belongs. Pick a style and finish during your visit and we'll match it to your sink.
Long Reach
Tall spout with a lever handle. Chrome, black, brushed nickel, brushed stainless, oil-rubbed bronze, or white.
Designer
Traditional gooseneck. Antique bronze, black, brushed nickel, brushed stainless, polished chrome, or satin nickel.
Modern
High-arc gooseneck with a single side lever, in polished chrome.
A Clean Under-Sink Install
Your RO system lives in your kitchen cabinet, so how it's installed matters. Our master plumber–led team mounts the system neatly, keeps the lines tidy and labeled, and leaves room for the trash can and cleaning supplies you keep under the sink.
- Leak-checked fittings on every connection
- A proper drain connection under the sink
- Easy filter access so changes take minutes
- Optional fridge or ice maker line run during the install
What Reverse Osmosis Removes
RO pushes water through a membrane fine enough to hold back most dissolved contaminants. A properly set-up system reduces:
- Arsenic, lead, and other dissolved metals
- Nitrate
- PFAS
- Salt, including the sodium a softener adds
- Fluoride and total dissolved solids
- Chlorine taste and smell
For arsenic, nitrate, or PFAS, we retest the treated water after install to confirm it's working.
What RO isn't for
RO treats drinking water at one faucet. It doesn't fix problems throughout the house.
- Hard water and scale: a water softener
- Iron stains: a whole-home iron filter
- Bacteria: UV disinfection
- Acidic water: an acid neutralizer
Why RO on Well Water Needs the Right Setup
Water pressure
RO membranes need steady pressure to work well. Many well systems run lower than city water, so we check yours and add a booster pump when needed.
Pre-treatment first
Hardness, iron, and sediment foul a membrane fast. If your water needs a softener or filter, we install it ahead of the RO to protect it.
Cold groundwater
Colder water flows through a membrane more slowly. We size the system so you still get good production in winter.
Our Reverse Osmosis Installation Process
- Free in-home water test. We check hardness, iron, pH, and dissolved solids, plus your water pressure, and collect lab samples for arsenic, nitrate, or PFAS if needed.
- Pick your system and faucet. We recommend a system, you choose your faucet style and finish, and you get a written quote, usually the same day.
- Clean installation. Our master plumber–led team installs the system under your sink, mounts the faucet, and can run a line to your fridge or ice maker.
- Walkthrough and support. We flush the system, check for leaks, show you how it works, and set you up for filter changes.
Reverse Osmosis Cost
Most of our RO installs run $850 to $2,000 installed. Where you land depends on:
- The system: 3-stage up through tankless or 6-stage alkaline
- Your faucet style and finish
- Whether you need a booster pump or pre-treatment
- Extras like a fridge or ice maker line
You'll get an exact written quote after your free water test.
Filter changes and maintenance
- Pre- and post-filters: every 6 to 12 months
- RO membrane: every 2 to 5 years
- Alkaline filter: replaced with the post-filters
Our maintenance plans handle filter changes for you. We also service RO systems we didn't install.
Reverse Osmosis Installation Near You
We install RO systems across Queen Anne's, Talbot, Kent, Caroline, Dorchester, and Anne Arundel Counties. See what's in the water where you live:
Queenstown · Stevensville & Kent Island · Centreville · Easton · St. Michaels · Chestertown · Denton · Cambridge · Annapolis · Severna Park · Edgewater
Reverse Osmosis FAQs
How much does reverse osmosis installation cost?
Most of our RO installs run $850 to $2,000 installed, depending on the system, your faucet choice, and whether you need a booster pump or pre-treatment. We give you a written quote after a free water test.
Should I get a tankless or tank RO system?
Tankless saves cabinet space, flows faster, and sends less water to the drain, but it needs an electrical outlet under the sink. Tank systems are simpler and don't need power. We'll look at your sink and help you choose.
What's the difference between 3, 4, 5, and 6-stage RO?
Each stage adds filtration. A 3-stage has sediment, carbon, and the membrane. A 4-stage adds a post-carbon polish for taste. A 5-stage adds a carbon block for well water. A 6-stage adds an alkaline filter that puts calcium and magnesium back.
Does reverse osmosis remove healthy minerals?
Yes, RO removes calcium and magnesium along with contaminants. Our 6-stage alkaline system adds minerals back and raises the pH for a smoother taste.
Can I choose my RO faucet?
Yes. We offer long reach, designer gooseneck, and modern high-arc faucets in finishes including chrome, black, brushed nickel, brushed stainless, satin nickel, oil-rubbed bronze, antique bronze, and white. We'll help you match your kitchen faucet.
Does reverse osmosis work on well water?
Yes, with the right setup. We check your hardness, iron, sediment, and pressure first, and add pre-treatment or a booster pump if your well needs it.
Does RO remove arsenic, nitrate, PFAS, and lead?
A properly set-up RO system reduces all four at the kitchen tap. For arsenic, nitrate, or PFAS, we retest the treated water after install.
Is RO wastewater a problem for my septic system?
For most homes, no. The volume is small compared with normal household use, and tankless systems send even less water to the drain.
Can RO connect to my fridge and ice maker?
Usually, yes. We can run a line from your RO system to your refrigerator or ice maker during the install.
How often do RO filters need to be changed?
Pre- and post-filters every 6 to 12 months, and the membrane every 2 to 5 years, depending on your water. Our maintenance plans handle it for you.
Last updated October 2026
Ready for Better Drinking Water?
Book a free in-home water test. We'll tell you which RO system fits your water, help you pick a faucet, and give you an upfront quote.