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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 Lafayette, CA

Call (425) 636-7038

Same-Day Installation · Free Estimates · No Trip Fees

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Home | Service Areas | Bay Area Water Heaters | Lafayette

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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 Lafayette, CA

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

Our licensed, bonded, and insured Lafayette technicians handle everything from classic tank-style heaters to high-efficiency tankless and heat pump systems—right-sized for Lafayette’s mild Bay Area climate and soft EBMUD water.

 

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 Lafayette, CA

Permits Required

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

California Plumbing Code (CPC) — 2022 Edition

Lafayette enforces the 2022 California Plumbing Code with City of Lafayette 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 Lafayette Chooses Fast Water Heater Co.

Lafayette’s trusted local plumber since 1986. Fast Water Heater Co. is a fully licensed California contractor (CSLB), bonded, and insured — every Lafayette installation is pulled under the correct City of Lafayette 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.

Lafayette Neighborhoods & Surrounding Areas We Serve

Inside Lafayette

  • Downtown Lafayette
  • Burton Valley
  • Happy Valley
  • Upper Happy Valley
  • Reliez Valley
  • Hidden Oaks
  • Lafayette Heights
  • Trails / Acalanes

Nearby Lamorinda

  • Orinda
  • Moraga
  • Walnut Creek
  • Pleasant Hill

Wider Contra Costa County

  • Alamo
  • Danville
  • Concord
  • Martinez
  • Berkeley
  • Oakland
📞 Call by 12 PM for same-day service across the Lafayette metro & Lamorinda area. Licensed, bonded, and insured in California since 1986 — CSLB contractor license on file with every quote.

Professional Water Heater Installation in Lafayette, 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 Lafayette 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 Lafayette

Expert Replacement Service

Over 40 years replacing water heaters across Lafayette—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

Lafayette 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 Lafayette

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 Lafayette’s soft Sierra-sourced EBMUD water.

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 Lafayette Homeowners

PG&E Heat Pump Rebates

PG&E offers rebates on qualifying ENERGY STAR heat pump water heaters for Lafayette 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 Lafayette homes. Learn more.

Lafayette Water Heater FAQs

Answers to the questions Lafayette homeowners ask us most.

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

How much does water heater installation cost in Lafayette, CA?
Most Lafayette homeowners invest in the mid-to-upper tier for a professionally installed, code-compliant water heater once you include the tank or tankless unit, expansion tank, seismic strapping, earthquake-rated gas flex, permit fees with the City of Lafayette Planning & Building Department, and labor by a licensed C-36 plumber. Larger hillside homes in Happy Valley and Upper Happy Valley often need venting, gas line, or electrical upgrades to meet the California Plumbing Code and Bay Area Air Quality Management District (BAAQMD) Rules 9-4/9-6. We give free, itemized quotes by phone or in-home — call (425) 636-7038.
Do I need a permit to replace a water heater in Lafayette?
Yes. The City of Lafayette Planning & Building Department requires a plumbing permit for any water heater replacement, including like-for-like swaps. The permit covers T&P relief valve and discharge line, seismic strapping (two straps in the upper and lower third of the tank — mandatory in California’s seismic zones), gas connector, venting, expansion tank on closed EBMUD systems, and a drain pan for interior installs. We pull the permit on your behalf and meet the City inspector at the property.
Tank, tankless, or heat pump water heater — what works best in Lafayette?
All three perform well in Lafayette’s mild Lamorinda climate. Tank units (40–75 gal) are the most affordable and fastest to install, ideal for straightforward replacements in Burton Valley or Reliez Valley. Tankless gas units are popular in larger hillside homes where family size and fixture count demand continuous hot water. Heat pump (hybrid electric) water heaters are increasingly attractive thanks to federal Inflation Reduction Act credits plus California’s electrification push — BAAQMD Rules 9-4 and 9-6 are phasing out NOx-emitting gas water heaters, so a heat pump upgrade future-proofs your home. We’ll walk through all three with real numbers for your Lafayette address.
My water heater is leaking — is this a same-day emergency in Lafayette?
Usually, yes. A tank leak doesn’t fix itself and typically gets worse quickly. If you see water pooling around the base, dripping from the T&P valve, or leaking from fittings, shut off the cold inlet and the gas (or breaker) and call (425) 636-7038. We keep common 40/50 gal tanks and popular tankless units stocked for same-day installs across Lafayette, Orinda, Moraga, and Walnut Creek — most emergency calls placed before noon are wrapped up the same day with the permit filed the next business morning.
How long does a water heater last in Lafayette with EBMUD water?
EBMUD delivers some of the softest tap water in California (roughly 30–50 ppm hardness from the Mokelumne watershed), which is gentle on water heaters. With proper anode rod service, most tank units in Lafayette last 10–14 years — at the high end of the national range. Tankless units flushed annually on EBMUD water routinely reach 18–20+ years. Homes with a point-of-entry softener should follow manufacturer descaling intervals more closely.
Can you install a tankless water heater in an older Lafayette home?
Yes. Lafayette has many mid-century and older homes in Downtown Lafayette, Burton Valley, and Lafayette Heights where we routinely upgrade to tankless. Older homes often need a dedicated 3/4″ gas line run from the meter, a Category III or IV stainless vent through the wall, a condensate drain, and a 120V outlet near the unit. We handle all of it, pull the plumbing and mechanical permits through the City of Lafayette Planning & Building Department, and schedule the BAAQMD-compliant install around your day.
Do you service the full Lamorinda area?
Yes. Our licensed California plumbers cover all of Lafayette — Downtown Lafayette, Burton Valley, Happy Valley, Upper Happy Valley, Reliez Valley, Hidden Oaks, Lafayette Heights, and the Trails / Acalanes corridor — plus neighboring Orinda, Moraga, Walnut Creek, and Pleasant Hill, and out to Alamo, Danville, Concord, Martinez, Berkeley, and Oakland. Same-day service is the norm when you call before noon.
What water heater rebates are available in Lafayette?
Lafayette residents can stack multiple incentives on a heat pump water heater: federal Inflation Reduction Act tax credits (up to 30% via 25C) plus California’s TECH Clean California and BayREN Home+ rebates (often $1,000–$4,500 depending on income and equipment), and PG&E electrification rebates. EBMUD doesn’t offer water heater rebates directly, but its soft water extends equipment life. We hand you the completed paperwork for every applicable program at install — no scavenger hunt.

What Lafayette Customers Are Saying

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