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Water Heaters in Mountain View, CA

Call (425) 636-7038

Same-Day Installation · Free Estimates · No Trip Fees

Home | Service Areas | Bay Area Water Heaters | Mountain View, CA

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Heater Experts Today!

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MON-FRI 7:00AM – 7:00PM

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Water Heater Experts Serving Mountain View, CA

From the mid-century Eichler homes of Monta Loma and Waverly Park and the older cottages of Old Mountain View to the newer condos and townhomes downtown and the classic ranch homes of Rex Manor, Mountain View properties each bring their own water heater challenges, from older gas lines to tight closet and garage installs. Fast Water Heater Co. has served Mountain View and Santa Clara County homeowners since 1986, and we know the local codes and inspectors inside out.

We’re licensed, bonded, and insured. Every job is filed with the City of Mountain View Building Division for permit and inspection. Explore our full range of water heater types: tank, tankless, heat pump, and hybrid.

Ready for Same-Day Water Heater Service?

Certified technicians, free estimates, no trip fees.

Trusted & Award-Winning

Angi Super Service Award 2022
Google 4.8 Stars
HomeAdvisor Elite Service

Water Heater Installation in Mountain View, CA

Mountain View homes run the gamut, from older cottages in Jackson Park to mid-century Eichler and ranch homes and newer condos in Cuesta Park. We install top brands including Rheem, Bradford White, and Rinnai, with every job pulled under a City of Mountain View permit and inspected to code.

Premium Brands — In Stock

We carry Rheem, Bradford White, Navien, Noritz, and Rinnai. That ranges from standard 40 to 50 gallon tanks for Rex Manor bungalows up to space-saving tankless units that fit the tight closets and garages common in Old Mountain View and Willowgate.

Mountain View Permit & Inspection

We file every job with Mountain View Building Division , required for any water heater replacement. Permitting protects your home value, insurance coverage, and a clean record at resale.

Whole-Home & Multi-Bath Systems

Larger Mountain View homes in Blossom Valley, North Bayshore, and Cuesta Park, plus houses with a backyard ADU, often need a high-recovery tank or a properly sized tankless system. We size every unit to your home’s real peak hot water demand.

Same-Day Service Available

Call before noon for same-day installation in Mountain View. We arrive in clean, marked vehicles and protect your home with shoe covers, drop cloths, and full cleanup on every job.

Written Estimate — No Surprises

We provide a written quote covering parts, labor, permit fees, and old unit haul-away before work begins. If you decide not to proceed, there is no charge and no pressure.

Complete Haul-Away Included

We remove and properly dispose of your old water heater as part of every installation, with no extra trip and no additional charge. Your utility area is left clean.

Water Heater Code Requirements in Mountain View, CA

Mountain View Permit Required

The City of Mountain View runs its own permitting through its Building Division. Any water heater replacement requires a permit pulled with the Mountain View Building Division. We handle all paperwork and schedule the inspection for you.

Earthquake Strapping Required

California law requires two seismic straps on every water heater. They go on the upper and lower thirds of the tank, with the lower strap at least 4 inches above the gas controls. Because Mountain View sits in a seismically active part of the Bay Area near the San Andreas Fault, inspectors check this on every job.

Approved Location Rules

Water heaters cannot be installed in bedrooms, bathrooms, or sleeping-area closets per the California Plumbing Code. In Mountain View homes with converted garages, basements, or backyard ADUs, location compliance is checked closely.

Gas Venting Standards

Flue venting on gas water heaters must use listed materials, keep proper clearances, and stay free of obstructions. Aging vent pipes in older Mountain View homes, common in Jackson Park, Shoreline West, and Waverly Park, are inspected and replaced when needed before installation.

T&P Relief & Drain Pan

A temperature and pressure relief valve is mandatory on all installations. Discharge piping must route to an approved outdoor location. Drain pans are required in any location where a leak could cause damage to the structure below.

Shutoff, Insulation & Bonding

A dedicated cold-water shutoff valve at the unit is required. Supply and delivery pipes in unconditioned spaces must be insulated. Gas and water piping must be electrically bonded per the California Building Standards Code.

Water Heater Replacement in Mountain View

Serving Mountain View Since 1986

We’ve completed thousands of water heater replacements throughout Mountain View, from Old Mountain View and Cuesta Park to Rex Manor and North Whisman. Our technicians know the local permit process, the local water supply, and the older housing stock inside and out.

Same-Day Replacement

If you’ve woken up to cold water, call before noon. We stock units on our trucks and can typically complete a full replacement, including permit, install, and haul-away, the same day.

Tankless Upgrades

Many Mountain View homeowners are switching to whole-home tankless systems for endless hot water, a smaller footprint, and longer service life. We handle gas-line sizing, venting, and full code compliance, including the tight garages common in older neighborhoods.

On-Site Written Estimate

We assess your existing setup and provide a written quote covering parts, labor, permit, and disposal before any work begins. No obligation if you choose not to proceed.

Rental & HOA-Friendly

We can coordinate access with your tenant, property manager, or HOA, which helps with the many duplexes, fourplexes, and condo buildings across Mountain View. We arrive on time, work efficiently, and leave your home exactly as we found it.

All Major Brands

Need a like-for-like Rheem swap, or want to step up to a Navien or Noritz tankless? We carry and install the right unit for your home’s hot water demand.

Water Heater Repair in Mountain View

No Hot Water?

Common causes are a failed thermocouple, pilot light outage, or heating element failure. Our technicians diagnose on the spot and carry standard repair parts on every service van.

Check Your Warranty

Most quality tank water heaters carry a 6–12 year warranty. We can help you locate and decode your serial number to determine if your unit is still covered, which can save you the cost of a replacement.

Repair vs. Replace

If your unit is over 10 years old and facing a significant repair, replacement is often the smarter investment. We give you an honest assessment, with no upselling.

Thermocouple & Thermistor Repair

A failed thermocouple (gas heaters) or thermistor (electric and tankless) is one of the most common repairs. These parts are inexpensive and stocked on our vans for fast turnaround.

Anode Rod Replacement

Water chemistry and normal use cause anode rod depletion over time. Replacing the rod every 3–5 years is the most cost-effective way to extend your tank’s life and prevent premature corrosion from the inside.

Annual Tank Flush

Hard water leaves calcium deposits at the bottom of your tank, reducing efficiency and shortening its life. An annual flush removes sediment buildup. It is a simple service that pays for itself in energy savings.

Mountain View Neighborhoods & Surrounding Areas We Serve

Neighborhoods We Serve in Mountain View

  • Old Mountain View
  • Cuesta Park
  • Monta Loma
  • Rex Manor
  • Waverly Park
  • Willowgate
  • Sylvan Park
  • Blossom Valley
  • Los Altos
  • Downtown Mountain View

Nearby Cities We Serve

  • Los Altos
  • Sunnyvale
  • Palo Alto
  • Los Altos Hills
  • Santa Clara
  • Cupertino
  • Milpitas
  • Redwood City
  • Menlo Park

Wider Service Area

  • North Bayshore
  • Shoreline West
  • Jackson Park
  • North Whisman
📞 Call by 12 PM for same-day service across Mountain View. Licensed, bonded, and insured in California since 1986, with a CSLB contractor license on file with every quote.

Mountain View Water Heater FAQs

Answers to the questions , homeowners ask us most.

Don’t see yours? Call us at the number above or request service online.

Do you offer same-day water heater service in Mountain View?
Yes. Fast Water Heater Co. provides same-day water heater installation, replacement, and emergency repair throughout Mountain View when you call before noon. Old Mountain View, Cuesta Park, Rex Manor, Waverly Park, and Downtown are typical 2–3 hour response windows.
What permits are required for water heater replacement in Mountain View?
A plumbing permit is required for nearly every water heater replacement. Mountain View issues permits through the Community Development Department / Building Division (500 Castro Street). We pull the correct permit for your address and coordinate the inspection.
Do I need seismic strapping for my water heater in Mountain View?
Yes. The San Andreas Fault runs just west of Mountain View through the Peninsula foothills, and the 1989 Loma Prieta earthquake caused strong shaking across the area, so the California Plumbing Code requirement for two seismic straps (upper third and lower third, anchored to studs or masonry) is strictly enforced. We install code-compliant straps on every job.
What rebates are available for water heaters in Mountain View?
In Mountain View, PG&E provides natural gas service, and rebate programs through the City of Mountain View and Silicon Valley Clean Energy help offset the cost of high-efficiency heat pump water heaters. The federal 25C tax credit covers up to $2,000 for HPWHs, and TECH Clean California incentives can stack on top.
How does Mountain View water hardness affect water heaters?
Most of Mountain View is supplied with SFPUC Hetch Hetchy water, which is relatively soft, commonly running around 3 to 5 grains per gallon, blended at times with local groundwater. Scale buildup is less aggressive than in hard-water areas, but annual flushing on tank units and periodic descaling on tankless still protects equipment life and efficiency.
Can you install a tankless water heater in older Mountain View homes?
Yes. We install Rinnai, Navien, Noritz, Rheem, and Bradford White tankless units in the older cottages and mid-century Eichler and ranch homes throughout Jackson Park, Waverly Park, Rex Manor, and Monta Loma. We handle gas-line resize, a dedicated 120V outlet, condensate drain, and the Category IV venting required for condensing units, and we work around the tight closets and detached garages common in older Mountain View homes.
Can you install large-capacity water heaters for Mountain View homes?
Yes. We routinely install 75 and 100 gallon tank units, twin-tank manifold setups, and high-output Rinnai/Navien condensing tankless cascades for larger and multi-bath homes throughout Blossom Valley, North Bayshore, Cuesta Park, and the older neighborhoods. Sizing is matched to fixture-unit count and recovery demand.
Do you handle gas, electric, and tankless water heaters in Mountain View?
Yes, the full lineup. Standard gas tank (40, 50, 75, 100 gallon), electric tank, gas tankless (condensing and non-condensing), and heat pump water heaters. We are authorized installers for Bradford White, Rheem, AO Smith, Rinnai, Navien, and Noritz, and we stock the most common Mountain View sizes for same-day swap.

Mountain View Water Heater Rebates & Incentives

PG&E Rebates (Gas Customers)

Mountain View receives natural gas service from PG&E. PG&E and local programs offer ENERGY STAR rebates on qualifying high-efficiency natural-gas tankless and storage water heaters. Visit pge.com for current amounts.

PG&E Rebates (Electric Customers)

Mountain View gets its electricity through PG&E, with generation from Silicon Valley Clean Energy (SVCE). Rebates are available on qualifying heat pump water heaters. Visit svcleanenergy.org for current heat pump rebate programs.

TECH Clean California

Statewide incentives for heat pump water heaters, stackable with utility rebates. Eligible households can combine multiple programs for maximum savings. Check eligibility at techcleanca.com.

We Help You Maximize Savings

We help Mountain View homeowners identify and apply the right SVCE, PG&E, and TECH Clean California rebates for their installation. Contact us before buying, since rebate amounts and eligible models change frequently.

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Contact Your Mountain View Experts!

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