We size from the numbers
Wells vary from one parcel to the next, even on the same road. We build around your readings, not a package deal. That keeps the system no bigger than it needs to be.
Coastside and hill wells
Well Water Filtration & Treatment in San Mateo
For San Mateo County properties off SR-92 and up in the hills that run on a private well, we measure the water first and build treatment around the readings. No guesswork, no oversized equipment.
When a well needs more than a single filter
Most houses in San Mateo get treated Cal Water supply. Some don't. Properties out along the coastside toward Half Moon Bay and in the unincorporated hills often run on a private well, and nobody treats that water but you. San Mateo Water Filtration handles well water filtration and treatment for those homes, from a single sediment stage to a full treatment train.
The visit starts at the wellhead and pressure tank. We take readings for iron, hardness, pH, and TDS on site, look at what's already plumbed in, and tell you which stages the water actually calls for. Bacteria questions go to a lab sample, and we'll explain why a field kit can't settle them.
What a well treatment visit covers
A well system is a sequence, and the order matters. Here is what we look at and what we can put in.
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On-site water readings
We measure iron, hardness, pH, and TDS at the tap closest to the pressure tank. Those numbers decide the rest of the system.
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Lab sample guidance
Coliform bacteria, nitrates, and arsenic need a certified lab, not a field kit. We show you how to pull a clean sample and what to ask the lab to run.
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Sediment prefiltration
A spin-down screen or cartridge stage catches sand and grit first. That keeps the media and the UV lamp downstream from fouling early.
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Iron and manganese removal
Air-injection or catalytic media filters oxidize dissolved iron so it can be trapped and backwashed out. Orange stains and black specks usually stop at the source.
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pH correction
Low-pH well water slowly eats copper pipe and fixtures. A calcite neutralizer raises pH gradually and is simple to top up with fresh media.
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Softening where readings justify it
Some coastside wells run hard and plenty don't. We only fit a softener when the hardness number says it will pay its way.
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UV disinfection
An NSF/ANSI 55 UV unit treats bacteria and other microorganisms without adding chemicals. It goes last in line, after the water is clear enough for the light to work.
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Shock chlorination advice
If a lab result comes back positive, the well itself often needs a shock treatment before any filter is fitted. We walk you through the right order of operations.
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Bypass and isolation valves
Every stage gets valves so it can be serviced without shutting off water to the house. Small detail, big difference on service day.
How a well job runs, start to finish
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Readings and a walk-around
We meet you at the well, check the pressure tank, and take readings on site. You see each number as we get it, not in a report days later. If bacteria is a question, we set up the lab sample at the same time. Plan on about an hour.
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A written plan and quote
Once lab results are back, you get a written quote that lists each stage, why it's there, and what it costs. Nothing gets added that the readings don't support. If a stage is optional, the quote says so plainly.
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Install and handover
On most properties we fit the system in one visit, then run it, set the backwash timing, and take a second set of readings at the tap. You'll know what's in the glass before we leave. We also leave a simple schedule for cartridge, media, and lamp changes. A typical install takes a full working day.
Why Choose San Mateo Water Filtration for Well Water Filtration & Treatment
Honest about lab work
A field kit can't confirm bacteria. We say that plainly and point you to a lab sample instead of selling a UV unit on a hunch.
Built to be serviced
Each stage is plumbed with bypasses and laid out so cartridge and media changes are simple. You or we can handle the upkeep without draining the house.
- Written quoteEvery stage itemized up front
- Readings on siteIron, pH, hardness, and TDS
- Booked visitsScheduled around your day
- NSF/ANSI 55 UVEquipment built to the standard
Get your well water sorted out
If the water at your place comes from a well and you're not sure what's in it, start with readings. We'll book a visit, measure what we can on site, and tell you which lab tests are worth running.