Scale on your fixtures, spots on your dishes or water that just does not taste right? We install water softeners and filtration systems for Los Gatos and South Bay homes, sized to your water and your household.
Los Gatos Water at a Glance
Average hardness by source, from San Jose Water’s 2025 report. Every result met all state and federal drinking water standards, so treatment here is mostly about taste, scale and peace of mind. For a plain-English rundown of what’s in our local water and which system does what, read our guide, Water Filters for Los Gatos Homes.
Types of Water Treatment Systems and What They Do
There is a broad range of water treatment systems, each of which is designed to do different things. The right type of system for you will depend on your unique preferences and concerns. You may even wish to have multiple whole-home systems installed to maximize your water’s quality.
Simply Green Plumbing installs several types of popular water treatment systems and can help you find the best option for you.
- Water softeners are ideal for removing substances like calcium, iron, and magnesium from water. Removing them turns “hard” water into “soft” water.
- Reverse osmosis moves water through a semipermeable membrane to remove unwanted particles and improve your water’s taste.
- UV-light water filtration removes harmful bacteria with ultraviolet (UV) light, resulting in safer drinking water.
- Activated carbon filters absorb contaminants and impurities, as well as reduce or remove unpleasant odors.
Mechanical filtration systems trap and remove unwanted particles. This is one of the most common, straightforward types of water filtration systems available.
This is not an exhaustive list of available treatment systems. Our Los Gatos water treatment team can help you look at all your options and find the right solution for your home and your needs.
Benefits of Water Treatment Systems
Nobody wants pollutants in their water. A water treatment system will purify your water supply, making the water you ingest through drinking, cooking, and gardening healthier. There are additional advantages to these systems.
- Improves the look, taste, and effectiveness of water as well as promoting health and well-being
- Removes impurities caused by old water pipes that may contain soil sediments, rust and other contaminants
- Benefits the environment by encouraging less purchase and disposal of plastic water bottles and filters that you might normally rely on because of the poor quality of your tap water
- Saves you money on buying bottled water. An average family drinking 2-3 bottles of water a day can rack up annual costs exceeding $500.
- Extends the lifespan of your water pipes, hot water heaters, and other appliances by eliminating the minerals, heavy metals, and chemicals in your water that can cause corrosion and damage to your pipes and water-using appliances.
- Prevents skin irritation by eliminating chemicals contained in the water.
- Cleans better with less soap and detergents. By removing the concentration of minerals, it increases the effectiveness of the cleaners in your clothes washer, dishwasher, and other cleaning appliances. Thus, you get cleaner results with less products.
- Reduces limescale and other mineral deposits. These are the white, chalky deposits left on tile, tubs, and other fixtures where water is used.
Get the Clean Water You Deserve
With more than 35 years of industry experience, Simply Green Plumbing is well-equipped to install and repair a full range of water treatment services, including water purification and filtration systems, water treatment systems, and hard water reduction.
We specialize in customized plumbing solutions, and we stand behind everything we do with our 100% customer satisfaction guarantee. Our team serves customers throughout Los Gatos, Saratoga, Monte Sereno, Campbell, Cupertino, San Jose, Willow Glen, and beyond.
Call us today at (408) 358-6446 or contact us online to make your appointment for Los Gatos water treatment services!
Recent Water Treatment Jobs
San Jose, November 2025: why softener salt matters for a tankless heater
A tankless water heater normally needs a full service every year to remove scale. In a home with a working whole-house softener, we schedule that service every three years instead. This tankless had failed early, and part of the reason may have been a stretch when the softener had no salt and hard water went straight through it. We serviced the heater, including a clogged condensate filter, a full fire-side and water-side cleaning and a flush of the heat exchanger.
San Jose, October 2024: a tankless that was never protected
A Navien tankless heater installed by another company had no filtration for hard water in front of it, even though Navien’s heat exchanger warranty requires it. After seven years it had a failed gas valve part, a leak at the inlet filter and a plugged condensate filter. We recommended replacing it rather than repairing a unit that had run unprotected since day one.
San Jose, August 2026: new filter housings that did not fit the old piping
The homeowner bought the manufacturer’s updated whole-house filter housings, which are a different size than the old ones. We re-piped the connections in Type L copper, remounted the brackets so the heavier canisters are supported, soldered and leak-tested everything, and checked that the system was working before we left.
Customer Reviews
The Simply Green team were very professional and went above and beyond helping us with our filtration system and water heater.
Ed Roberge, Google review
My water softener died and he personally handled the situation. He took the time to work with me to figure out the best solution which in this case was to get a new unit.
J. A. E., Google review
Russell and his team did a fantastic job installing the Flush System in my water heater and performing a periodic flush of the system. Great communication, prompt service, and great prices. Highly recommended.
Liam O'Connor, Google review
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Water Heater Repair
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Frequently Asked Questions
Is Los Gatos water hard enough to need treatment?
Much of the South Bay has moderately hard water, and the effects show up as scale on fixtures, spotted glassware, dry skin, and shortened water heater life. A simple hardness test, which we can do at your home, tells you where you stand.
What is the difference between a softener and a filtration system?
A softener removes hardness minerals to protect pipes, fixtures, and the water heater; filtration targets taste, odor, chlorine, and specific contaminants. Many homes benefit from a combination, sized to the house.
Will a water softener help my water heater last longer?
Yes. Scale buildup is a leading cause of early water heater failure and lost efficiency, especially for tankless units, which require periodic descaling in hard-water areas. Softened water directly reduces that buildup.
Do you service existing treatment systems?
Yes. We repair, maintain, and replace softeners and filtration systems, including ones we did not install.