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Fast Water Heater Logo

(425) 636-7038

Call before noon for same day service.

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Water Heaters in Half Moon Bay, CA

Call (425) 636-7038

Same-Day Installation · Free Estimates · No Trip Fees

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Home | Service Areas | Bay Area Water Heaters | Half Moon Bay

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Heater Experts Today!

Our Hours

MON-FRI 7:00AM – 7:00PM

SAT-SUN 8:00AM – 5:00PM

Reliable Water Heater Services in Half Moon Bay, CA

Contact Fast Water Heater Co. for expert water heater installation, repair, and maintenance in Half Moon Bay, CA—customized for local homes. We deliver consistent hot water and superior service for your daily routines.

Our licensed, bonded, and insured Half Moon Bay technicians handle everything from classic tank-style heaters to high-efficiency tankless and heat pump systems—right-sized for Half Moon Bay’s mild Bay Area climate and soft Coastside County Water District (CCWD) water drawn from Pilarcitos Reservoir and SFPUC’s Crystal Springs supply.

 

Brands We Install & Service:

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Certified technicians, free estimates, no trip fees.

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Trusted & Award-Winning

Angi Super Service Award 2022 Google 4.8 Stars HomeAdvisor Elite Service

Water Heater Codes & Compliance in Half Moon Bay, CA

Permits Required

All water heater replacements in Half Moon Bay require a permit pulled through the City of Half Moon Bay Planning & Building Department. We handle the Half Moon Bay permit process end-to-end so your project stays on schedule.

California Plumbing Code (CPC) — 2022 Edition

Half Moon Bay enforces the 2022 California Plumbing Code with City of Half Moon Bay amendments. We follow every requirement on every job.

Seismic Strapping

Two approved metal straps (min. 20-gauge) required—one in the upper third and one in the lower third of the tank. Mandatory on all installs and replacements per CPC 507.2 (California Plumbing Code).

Expansion Tanks

Required on all closed plumbing systems (backflow preventers, PRVs, or check valves present) to prevent thermal expansion damage per UPC 608.3.

Safe Installation Zones

Gas water heaters prohibited in bedrooms, bathrooms, and closets opening into living spaces. Garage units must have ignition sources ≥18 inches above floor unless FVIR-listed.

T&P Valve, Venting & Drip Pans

T&P discharge pipe must terminate safely 6–24″ above ground. Proper venting (Type B or stainless for condensing units) and drip pans in leak-risk locations are required per UPC 507.5 / 608.3.

Why Half Moon Bay Chooses Fast Water Heater Co.

Half Moon Bay’s trusted local plumber since 1986. Fast Water Heater Co. is a fully licensed California contractor (CSLB), bonded, and insured — every Half Moon Bay installation is pulled under the correct City of Half Moon Bay Planning & Building Department permit and meets the current 2022 California Plumbing Code.

Same-Day Emergency Service

Call by noon for same-day service—7 days a week. Mon–Fri 7am–7pm, Sat–Sun 8am–5pm. No extra charges for weekends.

All System Types

Gas, electric, tank, tankless, heat pump, hybrid—we install and repair them all with parts on-truck for fast turnaround.

Free Estimates · No Trip Fees

Transparent upfront pricing with no hidden fees—ever. Free in-home consultations and no trip fee on any call.

No Weekend Surcharges

Emergencies don’t follow a schedule. We provide seven-day service at flat rates—no extra charges on weekends.

Prepared Technicians

Background-checked, certified techs with well-stocked trucks. Locate your unit’s model and serial number beforehand for a smoother visit.

Half Moon Bay Neighborhoods & Surrounding Areas We Serve

Inside Half Moon Bay

  • Downtown Half Moon Bay
  • Ocean Colony
  • Miramar
  • El Granada
  • Princeton-by-the-Sea
  • Frenchmans Creek

Nearby Coastside

  • Moss Beach
  • Montara
  • Pacifica
  • San Gregorio
  • Pescadero
  • La Honda

Wider Peninsula

  • San Mateo
  • Redwood City
  • Belmont
  • Burlingame
  • Woodside
  • Daly City
📞 Call by 12 PM for same-day service across the Half Moon Bay Half Moon Bay and the San Mateo Coastside. Licensed, bonded, and insured in California since 1986 — CSLB contractor license on file with every quote.

Professional Water Heater Installation in Half Moon Bay, CA

Same-Day & Next-Day Installs

Call before noon for same-day service. Stocked trucks carry Rheem, Bradford White, and Rinnai so your hot water is restored fast.

Code-Compliant Every Time

Every install follows California Plumbing Code (CPC), Title 24 California Energy Code, and Half Moon Bay permit requirements—including mandatory seismic strapping.

All System Types

Tank, tankless, heat pump, hybrid, gas, electric—we install them all and help you choose the best fit for your home size, usage, and budget.

Free Estimates · No Trip Fees

Transparent upfront pricing with no hidden fees. Free in-home consultations—no trip fee, weekday or weekend.

Licensed, Bonded & Insured

Background-checked technicians fully certified on Rheem, Bradford White, and Rinnai systems—backed by decades of California and Bay Area experience.

Warranty Support

Full system testing, homeowner walkthrough, and warranty claim assistance after every installation.

Water Heater Replacement in Half Moon Bay

Expert Replacement Service

Over 40 years replacing water heaters across Half Moon Bay—from single-family homes to bungalows and hillside homes. Full removal, installation, and permit coordination included.

Responsive & Tailored

Upgrading to a more efficient model or switching to tankless? Same-day in most cases—options matched to your needs and budget.

Know When to Replace

Units over 10 years old, frequent repairs, rising energy bills, or rusty water are signs it’s time. We’ll give you an honest recommendation.

Transparent Pricing

Initial phone estimate, final price confirmed on-site. No surprises—fair, honest pricing for quality work.

Top Brands Stocked

Rheem, Bradford White, Rinnai, Navien, and Noritz on our trucks—replacements happen fast without waiting on orders.

Permit Handling Included

Half Moon Bay requires a permit for replacements. We manage the permit process end-to-end—no delays.

Questions about your water heater? We’re ready to help.

(425) 636-7038

Mon–Fri 7am–7pm · Sat–Sun 8am–5pm · No Trip Fees

Water Heater Repair in Half Moon Bay

No Hot Water

Faulty thermocouples, failed heating elements, or tripped reset—we diagnose and repair fast, often same day.

Pilot Light & Ignition

Pilot won’t stay lit? We replace the thermocouple, thermopile, or gas valve assembly to get your system firing reliably again.

Leaks & Pressure Issues

T&P valve discharge to tank leaks—we identify and fix the source fast to stop water damage before it starts.

Anode Rod Replacement

Prevents tank corrosion and extends heater life. We offer dual-rod upgrades for added longevity in Half Moon Bay’s soft Coastside County Water District (CCWD) water drawn from Pilarcitos Reservoir and SFPUC’s Crystal Springs supply.

Sediment Flushing

Annual tank draining keeps your unit efficient and prevents premature failure from sediment buildup.

Repair vs. Replace Advice

Units over 10 years old may cost more to repair than replace. Honest, no-pressure assessment every time.

Rebates & Savings for Half Moon Bay Homeowners

PG&E Heat Pump Rebates

PG&E offers rebates on qualifying ENERGY STAR heat pump water heaters for Half Moon Bay customers, with higher incentive tiers available for income-qualified households through BayREN. Check pge.com/rebates for current amounts and eligibility.

PG&E Gas Tankless Rebates

Rebates available on qualifying high-efficiency natural gas tankless water heaters (UEF ≥ 0.95, ENERGY STAR). Check pge.com/rebates for current qualified product lists.

California HEAR Program

The California HEAR program (funded by the federal IRA) provides rebates for heat pump water heaters with higher tiers for income-qualified households. Administered through the California Energy Commission and TECH Clean California.

BAAQMD Zero-NOx Rules

Bay Area Air Quality Management District (BAAQMD) Rules 9-4 and 9-6 phase out NOx-emitting natural-gas water heaters in our region, with zero-NOx requirements for residential units beginning January 1, 2027. A heat pump water heater is increasingly the future-proof choice for Half Moon Bay homes. Learn more.

Half Moon Bay Water Heater FAQs

Answers to the questions Half Moon Bay homeowners ask us most.

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

Do I need a Half Moon Bay permit to replace a water heater?
Yes. The Half Moon Bay Planning & Building Department requires a plumbing permit for every water heater replacement, whether you’re swapping a tank or converting to tankless. San Mateo County handles permits for unincorporated Coastside addresses like Moss Beach and Montara. We pull the right permit and schedule the inspection for you.
Is Coastside water hard or soft?
Coastside County Water District (CCWD) delivers some of the softest water on the Peninsula — blended from Pilarcitos Reservoir and SFPUC’s Crystal Springs supply. That’s great for tank longevity. You’ll typically get 10–12+ years on a properly installed tank here, with anode inspections being more important than descaling.
Does coastal salt air affect water heater life in Half Moon Bay?
Yes, meaningfully. Homes close to Pillar Point Harbor, Miramar, and Ocean Colony see accelerated corrosion on tank jackets, T&P valves, and outdoor tankless units from salt-laden fog. We recommend corrosion-resistant installs, interior utility-room placement when possible, and annual T&P testing in oceanfront homes.
Can you install an outdoor tankless unit on a HMB home?
Yes — many Coastside homes work best with outdoor tankless because of tight interior closets and atmospheric vent limitations. We’ll select a unit rated for coastal exposure, install with stainless fasteners and protective cladding where needed, and confirm the gas line supports the BTU demand.
How fast can you get to Half Moon Bay for an emergency?
We dispatch to the Coastside daily, including El Granada, Miramar, and Moss Beach. Over Hwy 92 we usually arrive same-day for active leaks and no-hot-water calls. Call (425) 636-7038 with your address and we’ll give you a real arrival window plus a clear diagnostic plan.
Do you handle earthquake strapping on Half Moon Bay installs?
Every install includes code-compliant seismic strapping — two straps in the upper and lower third of the tank, anchored to framing — plus a flexible gas connector, T&P discharge to an approved termination, and a drip pan where the location or code requires one.
What heat-pump water heater rebates are available on the Coastside?
BayREN Home+, TECH Clean California, and Peninsula Clean Energy’s electrification programs all apply in Half Moon Bay. We’ll identify eligible heat-pump models sized for your garage or utility room — keeping noise and condensate drainage in mind — and hand over the paperwork at install.
What brands do you install in Half Moon Bay?
Bradford White and Rheem for tanks, Navien and Rinnai for gas tankless (both indoor and coastal-rated outdoor models), and Rheem / A.O. Smith for heat-pump units. We size to your actual hot-water demand and every install includes the manufacturer warranty plus our written workmanship guarantee.

What Half Moon Bay Customers Are Saying

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