Baja Water Systems
iSpring whole-house filtration system installed in a Baja home

Whole-House Filtration

Whole-House Water Filtration for Rosarito & Baja California

Clean water from every tap — multi-stage carbon filtration with UV sterilization for the northern Baja corridor, Tijuana through Valle de Guadalupe. Every system includes professional installation, bypass valves, and pressure gauges.

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Serving Rosarito, Tijuana, Ensenada, and Valle de Guadalupe.

How It Works

Three stages, in this order

  1. 1

    Sediment pre-filtration

    Water enters through the spin-down sediment prefilter, removing sand, silt, and large particles before they reach the main filters.

  2. 2

    Carbon filtration

    Carbon stages remove chlorine, chemicals, odors, and (on Better/Best tiers) PFAS, lead, and heavy metals that standard filters miss.

  3. 3

    UV sterilization

    UV sterilization eliminates 99.99% of bacteria and viruses before water reaches your taps.

Three Tiers

Good, Better, Best

All three include professional installation, the first filter set, and our 30-day satisfaction guarantee — for homes across Rosarito, Tijuana, Playas de Tijuana, Ensenada, and Valle de Guadalupe.

iSpring WCB32C sediment plus dual CTO carbon whole-house filtration system
Good

Complete Whole House System — Good

5-micron sediment plus dual CTO carbon block filtration, with spin-down prefilter and UV sterilization.

  • 5-micron sediment + dual CTO carbon block (WCB32C, 20"×2.5")
  • Spin-down sediment prefilter (WSP50ARB)
  • UV sterilization (UVF50 LED)
  • Professional installation included
  • Bypass valves and pressure gauges
  • All filters and parts stocked locally
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iSpring WCB32C-GAC whole-house sediment, GAC, and CTO filtration system
Better

Complete Whole House System — Better

Sediment + GAC + CTO filtration that also reduces chloramine, PFAS, THMs, radon, and hydrogen sulfide.

  • Sediment + GAC + CTO (WCB32C-GAC), 3/4" ports, ~30,000 gallons
  • Reduces chlorine, chloramine, PFAS, THMs, radon, and hydrogen sulfide
  • Does not reduce lead/heavy metals, TDS, or hardness
  • Spin-down sediment prefilter (WSP50ARB) + UV sterilization (UVF50 LED)
  • Bypass valves and pressure gauges
  • All filters and parts stocked locally
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iSpring WGB32B-KS premium 20x4.5 whole-house filtration system with lead and heavy-metal reduction
Best

Complete Whole House System — Best

Sediment + GAC/KDF + CTO — the only tier that reduces lead, mercury, hydrogen sulfide, and heavy metals.

  • Sediment + GAC/KDF + CTO (WGB32B-KS), 20"×4.5"
  • The ONLY tier that reduces lead, mercury, hydrogen sulfide, and heavy metals
  • 1" ports, up to 15 GPM, ~100,000 gallons
  • Also reduces chlorine, PFAS, and odors
  • Spin-down sediment prefilter (WSP50ARB) + UV sterilization (UVF50 LED)
  • Bypass valves and pressure gauges
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Every system includes a 30-day satisfaction guarantee and is eligible for our BWS Care plans — scheduled filter changes, UV lamp replacement, and full system inspections.

Who a whole-house system is for

Whole-house filtration treats water where it enters your home, so every tap, shower, and appliance gets cleaner water. It's the right choice if you want to protect your plumbing and appliances, cut the chlorine smell from your showers, and stop sediment from Rosarito's supply and your rooftop tinaco before it reaches the rest of the house.

  • Homeowners who want cleaner water at every tap, not just the kitchen
  • Anyone dealing with chlorine smell, sediment, or scale on fixtures
  • Homes on a tinaco or cistern where stored water needs a safety barrier
  • Owners protecting water heaters, washing machines, and plumbing long-term

Whole-house or just the kitchen tap?

A whole-house filter improves every tap and protects your home, but it isn't the same as reverse osmosis drinking water. Many Baja homes pair a whole-house system with an under-sink RO unit for the kitchen. Not sure which you need?

Read: whole-house vs under-sink filtration →

What to expect on install day

  1. 1

    We size it to your home

    Before install we test your water and confirm the right tier and placement — usually at your main line, near the tinaco or where water enters the home.

  2. 2

    Professional installation

    Our team installs the system with bypass valves and pressure gauges, typically in a few hours, and cleans up after. Most installs are done same-day.

  3. 3

    We walk you through it

    Before we leave, we show you how it works, where the bypass is, and when the first filter and UV lamp change will be due — no guesswork.

Whole-house filtration: frequently asked questions

What's included in a whole-house water filtration system?
Every tier includes a spin-down sediment prefilter, multi-stage carbon filtration, and UV sterilization, plus professional installation with bypass valves and pressure gauges and the first filter set. The Better and Best tiers add GAC and KS carbon media that also reduce PFAS, lead, and heavy metals.
Do I still need a reverse osmosis system if I have whole-house filtration?
Usually yes, for drinking water. A whole-house filter improves every tap and protects your home, but it doesn't produce reverse-osmosis-quality drinking water. Most homes pair whole-house filtration with an under-sink RO unit at the kitchen — each does what it does best.
Does a whole-house filter remove bacteria?
Our whole-house systems include UV sterilization, which inactivates bacteria and viruses. Because chlorine dissipates while water sits in a rooftop tinaco, UV restores a microbial safety barrier right at your home. The carbon and sediment stages handle chlorine, taste, odor, and particles.
How often does a whole-house system need maintenance?
We recommend a visual inspection every 6 months and a full filter replacement every 12 months, with an annual UV lamp change. Baja's water is hard on filters, so keeping the schedule holds the system at full performance. A Whole-House Care Plan includes the annual filter set, UV lamp, and two service visits per year.
Will a whole-house filter help with hard water and scale?
The filter reduces chlorine, sediment, and contaminants, but hardness (calcium and magnesium) is a separate problem best solved by a water softener. If you have scale on fixtures and appliances, we often recommend pairing a whole-house filter with a softener.

Maintenance

How Often Should I Replace My Filters?

We recommend a visual inspection every 6 months and a full filter replacement every 12 months. Local water is hard on filters, so keeping to this schedule holds the system at full performance and protects everything downstream. UV bulbs also lose intensity over time and should be replaced once a year. With a Whole House Care Plan we track when yours are due, bring the right iSpring set, and install it on schedule. The annual filter set, UV bulb, and two service visits per year are all included, so there is no border run to source parts and no guessing when they are due.

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Need Help Choosing?

We'll test your water and recommend the right system. Free, no obligation.

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