San Diego water specialists since 2014
San Diego Water Filtration & Softeners.
Tested First, Fixed Right.
San Diego water runs about 16.3 grains per gallon and is treated with chloramine. We start every job with a free in-home water test, then recommend only what your home’s water actually needs.
NEWBuild your system online. Installed pricing in about a minute →
★★★★★ 5-star rated on Google Licensed plumbers, CA #1095361 Free in-home water test
Free in-home water test with results on the spot

Solutions for Every San Diego Home
Whole-home systems installed by licensed plumbers. The two below are what most San Diego homes need first, so they come first.

Most homes start here
Water Softeners
San Diego water is among the hardest in the country at 16.3 grains per gallon. Salt and salt-free systems sized by bathroom count, with district salt rules checked before we quote.

Every tap covered
Whole House Filtration
Removes chloramine, sediment, and disinfection byproducts at every tap in the house. SoftPure and HomePure systems with published installed pricing.

Reverse Osmosis
Under-sink drinking water. Removes up to 99% of PFAS, chromium-6, lead, and arsenic.

PFAS & Toxin Reduction
Targeted filtration for forever chemicals detected near Camp Pendleton and Miramar.

UV Purification
Destroys bacteria and viruses without chemicals. Ideal for well water.

Water Heaters
Hard water cuts heater life by 3 to 5 years. Sized and installed by Paws Plumbing.
San Diego’s water has a problem. Here’s what the numbers say.
San Diego’s municipal water meets every current legal standard. Legal and ideal are not the same number. This is what testing consistently shows in San Diego County homes.
16.3
Grains per gallon of hardness
“Very hard” starts at 10.5. At this level scale builds in water heaters, pipes, and appliances, soap stops lathering, and skin and hair feel dry.
NH₂Cl
Chloramine disinfection
San Diego uses chloramine instead of free chlorine. Standard pitcher and faucet filters do not remove it. It takes catalytic carbon or reverse osmosis.
PFAS
Forever chemicals detected
Found near Camp Pendleton, MCAS Miramar, and other military sites where firefighting foam was used. Reverse osmosis removes up to 99%.
0.36
ppb of chromium-6
Roughly 18 times the level many researchers consider safe. The EPA does not currently regulate chromium-6 specifically.
Know the price before we visit.
Most water companies make you sit through a two-hour pitch to hear a number. We publish installed pricing and let you build your system online first.
- SoftPure and HomePure whole-house systems priced by bathroom count
- Free in-home water test confirms the fit before you commit
- The quote you approve is the price you pay
Whole-house systems installed from
$2,740 including installation
Under-sink reverse osmosis from $1,256, or $899 added to any whole-house system. Custom whole-house RO quoted after a water sample.
Why San Diego Homeowners Choose Pure Water
We Test Before We Sell
Every job starts with a free in-home water test. We measure hardness, chlorine, chloramine, TDS, and pH on the spot and explain every result in plain language. No obligation, no pressure.
Installed by Licensed Plumbers
Pure Water is backed by Paws Plumbing, CA License #1095361. Your system goes in with real plumbing, proper permits, and a crew that has worked San Diego homes since 2006.
Sized to Your Home
Systems are sized and priced by bathroom count, so a two-bath bungalow never pays for a five-bath system. Salt-restricted district? We check the rules before we quote a softener.
What San Diego Homeowners Say
Real reviews from real customers, posted on Google.
M
★★★★★
“The day before my installation, Jack came by my house to assess where to properly place the system so there would be no surprise for the tech. A day later, Martin was able to install my water system professionally and without any problems. I would highly recommend San Diego Pure Water to anyone.”
S
★★★★★
“We had been renting a soft water system for 25 years. It’s insane how much we’ve spent. This is far more affordable and instead of soft water we have completely filtered drinking water from every spout.”
J
★★★★★
“I found the technician very knowledgeable and caring about his work. He and his supervisor laid out a plan to improve our system and the work was completed efficiently and professionally. I highly recommend San Diego Pure Water!”
Serving All of San Diego County
From the coast to the inland valleys. Hard water does not skip a zip code, and neither do we.
San DiegoCarmel ValleyCarlsbadEncinitasEscondidoDel MarOceansideRancho BernardoSan MarcosAll of San Diego County
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.
Schedule your free water test
Tell us a little about your water and we will be in touch within one business day.
See our Privacy Policy.
