PEAK Home Service PEAK Home Service
Serving San Jose & the South Bay

Water Softener & Filtration Installation

Santa Clara Valley's hard water scales up fixtures, tankless heaters, and appliances years before their time. PEAK Home Service installs and services water softeners and whole-home filtration across the South Bay — licensed, insured, and upfront on price.

Licensed & Insured · CSLB Lic. #1160220
5.0★ Google · 29 reviews
Same-Day Service
Upfront Pricing
Protect Your Tankless Heater
Hard Water, Valley-Wide

Untreated Hard Water Is Costing You

San Jose Water and Valley Water deliver moderately to very hard water across the South Bay. Left untreated, it scales tankless heat exchangers, clogs faucet aerators, and shortens the life of every water-using appliance in the house.

Whole-Home Softening

Treat every tap in the house, not just one fixture.

Protects Tankless Heaters

Prevents the scale buildup that's the #1 cause of early tankless failure.

Upfront Pricing

One flat-rate quote for the install before any work begins.

Same-Day Service

Most softener installs completed in a single visit.

What We Do

Our Water Softener & Filtration Services

Salt-based, salt-free, or whole-home filtration — sized to your home's water use and softened for the Santa Clara Valley's hardness levels.

Same-Day Install

Water Softener Installation

Salt-based ion-exchange softeners sized to your household's water use and hardness level.

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Salt-Free Conditioners

Template-assisted crystallization systems that reduce scale without adding sodium.

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Whole-Home Filtration

Sediment and carbon filtration for cleaner, better-tasting water at every tap.

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Reverse Osmosis Systems

Under-sink RO for drinking-quality water, installed alongside your softener.

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Softener Repair & Maintenance

Resin bed service, valve repair, and annual maintenance for existing systems.

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Tankless Scale Protection

Softener and descaling service designed to extend the life of tankless water heaters.

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Coverage

Areas We Serve

Family-owned and locally based — we cover San Jose and every surrounding Santa Clara County city, usually same day.

Cities We Serve

PEAK Home Service Serving San Jose, CA & Santa Clara County
Phone: (669) 336-6955
Hours: Mon–Sun 7AM–9PM · Same-Day Service
CSLB Lic. #1160220
Why Peak

Why the South Bay Needs Softened Water

Santa Clara Valley water is consistently hard, and it affects nearly every fixture and appliance in the home.

01

Valley-Wide Hard Water

San Jose Water and Valley Water both deliver moderately to very hard water across the South Bay, regardless of neighborhood.

02

Scale Shortens Appliance Life

Untreated hard water scales tankless heat exchangers, dishwashers, and washing machines — often the leading cause of early failure.

03

Soap, Spots & Skin

Soft water cuts soap and detergent use, eliminates water spots on fixtures and glassware, and is easier on skin and hair.

Recent Work

Recent Work We’ve Photographed

Backflow preventer valve assembly installed by PEAK Home Service
Cambrian Park

Backflow Assembly Replacement

Replaced a seized backflow preventer with a new assembly, then tested it and left the shutoffs and test ports reachable above grade.

New hose bib with water hammer arrester
Los Gatos

Hose Bib & Hammer Arrester

New exterior hose bib in copper with a water hammer arrester, so the pipe stops banging in the wall when the valve snaps shut.

Automatic water shutoff valve installed on the water main
Cupertino

Leak Monitor On The Main

Added a flow-monitoring shutoff valve to the water main so a burst line shuts itself off instead of running until someone notices.

Reviews

What Our Customers Say

"Our tankless heater kept losing efficiency — turns out it was scale. The softener they installed fixed it for good."

Grace L. — Cambrian Park, San Jose

"Same-day install, explained the difference between salt and salt-free clearly, no upsell pressure."

Victor N. — Los Gatos

"Water tastes better and our dishes stopped spotting. Should have done this years ago."

Helen B. — Cupertino
FAQ

Water Softener FAQ

How much does a water softener installation cost?
Cost depends on system size and your home's water use. We give a flat-rate, upfront quote before any work starts — call (669) 336-6955 for a same-day estimate.
Salt-based vs. salt-free — which should I choose?
Salt-based softeners remove hardness minerals entirely and are most effective in very hard water; salt-free conditioners reduce scale buildup without adding sodium, a good fit for households that want to avoid salt.
Will a softener protect my tankless water heater?
Yes. Scale buildup from hard water is the leading cause of early tankless heat exchanger failure — a properly sized softener significantly extends its life.
How much maintenance does a softener need?
Salt-based systems need periodic salt refills and occasional resin bed service; we offer maintenance visits to keep either system running efficiently.
How long does installation take?
Most whole-home softener installations are completed in a single same-day visit.

Ready to Fix Your Hard Water?

Whole-home softeners, salt-free conditioners, and filtration — sized for the Santa Clara Valley, installed same-day.

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