San Diego, CA
Reverse Osmosis Systems in San Diego for the Purest Drinking Water
Reverse osmosis removes up to 99% of PFAS, chromium-6, chloramine, lead, arsenic, and hundreds of other contaminants. For San Diego homeowners who want the cleanest possible drinking water, RO is the most comprehensive solution available.
★★★★★ Installed by licensed plumbers, CA #1095361
What Reverse Osmosis Removes
The membrane rejects contaminants by molecular size, which is why the list is this long.
- PFAS forever chemicals, up to 99% removal
- Chromium-6, detected in San Diego at up to 0.36 ppb
- Chloramine and chlorine
- Lead from aging home pipes
- Arsenic and fluoride
- Dissolved solids: TDS drops from about 650 ppm to near zero
What We Install
The Perfect Water 506 under-sink system: multi-stage filtration that fits beneath the kitchen sink and feeds a dedicated faucet.
- Sediment stageCatches particulates before the finer stages.
- Carbon stageHandles chloramine, chlorine, taste, and odor ahead of the membrane.
- RO membraneThe heart of the system. Rejects dissolved contaminants down to the molecular level.
- Polish and storeA final polish stage and a 3 to 4 gallon tank keep filtered water ready on demand.
Installed Pricing
Two ways to buy it. Most homeowners bundle RO with a whole-house system.
Standalone RO
Perfect Water 506, under-sink
$1,256 installed
- Multi-stage filtration with storage tank
- Dedicated drinking-water faucet at your sink
- Installed by licensed Paws Plumbing crews
Best value
RO add-on
Added to any whole-house install
$899 installed
- Same Perfect Water 506 system
- Bundled pricing with SoftPure, HomePure, or SimplePure
- One visit, one crew, whole home covered
Whole-house reverse osmosis is available for homes that need it.
For households where PFAS exposure, chromium-6, or sensitive health needs drive the decision, we design custom whole-house RO systems starting around $15,000. Because sizing depends on your actual water chemistry, these always start with a water sample.
Maintenance is one visit a year.
Annual filter service keeps the system at peak performance. We are a San Diego company you can call, and we service what we install.
Reverse Osmosis Questions
How much does a reverse osmosis system cost in San Diego?
The Perfect Water 506 under-sink system is $1,256 installed on its own, or $899 when added to any whole-house filtration or softener install. Custom whole-house RO starts around $15,000 and is quoted after a water sample.
Does RO waste a lot of water?
Newer systems waste far less water than older models. The 506 sends a small amount of reject water to the drain as it filters, and modern membranes have improved that ratio substantially over the systems most people remember.
Will RO remove PFAS and chromium-6?
Yes. Reverse osmosis removes up to 99% of PFAS and is one of the few residential technologies effective against chromium-6, which has been detected in San Diego water at up to 0.36 ppb.
Do I still need RO if I have a whole-house filter?
They do different jobs. The whole-house system protects pipes, appliances, and showers from chloramine and scale. RO takes the kitchen tap the rest of the way to near-zero dissolved solids for drinking and cooking. Many San Diego homeowners run both, which is why the add-on price exists.
Start with the free water test.
We come to your home, test your water on the spot, and walk you through exactly what we find. Thirty to forty-five minutes, no cost, no obligation. If your water is fine, we tell you that too.
(760) 492-6615Open hours: Mon to Fri 8 AM to 4:30 PM
After hours, leave a voicemail and we call back the next business day.
Free consultations and water tests are for homeowners or those working directly with the homeowner. If you need water testing for legal purposes, please contact a state-certified laboratory.
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