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Water Heaters in Redmond, WA

Call (425) 636-7038

Same-Day Installation · Free Estimates · No Trip Fees

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Heater Experts Today!

Our Hours

MON-FRI 7:00AM – 7:00PM

SAT-SUN 8:00AM – 5:00PM

Water Heater Experts Serving Redmond, WA

Redmond is home to Microsoft’s world headquarters, a dense tech-industry workforce, and a wide mix of housing — from older ramblers near downtown and Bear Creek to newer condos and townhomes in Overlake and Southeast Redmond. Fast Water Heater Co. has served the greater Seattle Eastside since 1988, and our technicians know exactly what Redmond homeowners expect: fast response, clean workmanship, and every permit filed correctly the first time.

We’re licensed, bonded, and insured in Washington State. Every job is filed through the City of Redmond REPS permit portal for plumbing permit and inspection. Explore our full range of water heater types — tank, tankless, heat pump, and hybrid.

Brands We Service & Install

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 Redmond, WA

Redmond’s housing stock ranges from 1960s–70s ramblers near downtown to dense Overlake condo towers and newer Eastside suburbs in Southeast Redmond and Bear Creek. We install top brands including Rheem, Bradford White, and Rinnai, with every job pulled through the City of Redmond REPS permit portal and inspected to code.

Premium Brands — In Stock

We carry Rheem, Bradford White, Navien, Noritz, and Rinnai — including heat pump models that qualify for PSE’s $750 rebate (Tier 3+ ENERGY STAR certified). Whether you need a 50-gallon tank for a family home or a space-saving tankless unit for an Overlake condo, we have it on the truck.

Redmond Permit & Inspection

A plumbing permit is required for all water heater replacements in Redmond — gas or electric. We file every job through the REPS online portal and coordinate the inspection. Permits are strictly enforced; a permitted install protects your insurance coverage and property value.

Heat Pump Water Heaters

HPWHs are the most energy-efficient option and qualify for PSE’s $750 rebate (up to $850 for income-qualified households through PSE’s Efficiency Boost program) plus up to $2,000 in federal tax credits. Garages — common in Redmond single-family homes — are ideal install locations. Heat pump upgrades may require 240V electrical work, which we can assess up front.

Same-Day Service Available

Call before noon for same-day installation throughout Redmond and the King County Eastside. We arrive with the most common sizes in stock — tank and tankless — and complete the full install, including seismic strapping and permit documentation, the same day.

Written Estimate — No Surprises

We provide a written quote covering parts, labor, permit fees, and old unit haul-away before work begins. No obligation if you decide not to proceed — no charge, no trip fees. Final price determined on-site based on your actual setup.

Complete Haul-Away Included

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

Water Heater Code Requirements in Redmond, WA

Redmond follows the 2021 Uniform Plumbing Code (UPC) with Washington State amendments (Chapter 51-56 WAC) and local enforcement through the City’s Development Services Center. A plumbing permit is required for all water heater replacements. We handle all permits and inspection scheduling — apply via the Redmond REPS portal.

Plumbing Permit Required

A plumbing permit is required for all water heater replacements — gas or electric — in Redmond. Permits are strictly enforced by the City’s Development Services Center. We file every job through the REPS online portal. Like-for-like replacements are straightforward; upgrades to heat pump or tankless may trigger additional electrical, venting, or energy code requirements.

Earthquake Strapping (UPC 507.2 / WAC 51-56)

Mandatory for all water heaters. Two straps required: one in the upper third and one in the lower third of the tank. Minimum 20-gauge metal straps or approved kits — perforated plumber’s tape is not allowed. At least 4 inches clearance from controls at the lower strap (UPC 507.2 / WAC 51-56-0500).

Expansion Tanks & PRV (UPC 608.3)

Required on closed plumbing systems — common in modern Redmond homes with backflow preventers, check valves, or PRVs — to accommodate thermal expansion and prevent damage (UPC 608.3). When a PRV is installed (or present), an expansion tank is also mandatory. PRV required when incoming pressure exceeds 80 PSI.

Approved Location Rules

Gas water heaters (non-direct-vent) are prohibited in bedrooms, bathrooms, or closets opening to living spaces — CO risk. In garages, ignition sources must be ≥18 inches above the floor unless the unit is listed as flammable vapor ignition resistant (FVIR). Direct-vent and power-vent models are allowed in more locations.

Gas Venting, Sediment Traps & Shutoff

Proper venting required using approved materials (Type B vent) with required clearances; tankless and power-vent models often need stainless steel or special venting materials. Combustion air requirements must be met. Modern threaded sediment traps (“drip legs”) required at gas connections — old-style grease pack valves are non-compliant and replaced during installation. Dedicated full-flow cold water shutoff required.

T&P Relief, Drain Pan, Bonding & Insulation

T&P relief valve mandatory; discharge pipe must terminate safely 6–24 inches above ground outside or to a drain. Drip pan required in attics, interior rooms, or above finished spaces — drained to an approved indirect waste or exterior location. Water and gas pipes must be bonded/grounded per NEC and UPC. Hot water pipe insulation required on recirculating lines and in unconditioned spaces per Washington State Energy Code.

Water Heater Replacement in Redmond

Serving Redmond Since 1986

We’ve completed thousands of replacements throughout Redmond and King County — from single-family ramblers near downtown and Bear Creek to townhomes in Overlake. Our background-checked technicians deliver consistent, clean workmanship with all permits filed correctly.

Same-Day Replacement

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

Tankless Upgrades

Tankless water heaters are a popular upgrade in Redmond — no storage tank means more closet space in condos and townhomes, plus endless hot water on demand. PSE offers up to $400 on qualifying gas tankless models. We handle gas line sizing, venting, and full code compliance.

On-Site Written Estimate

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

When to Replace vs. Repair

If your unit is over 10 years old and repair costs exceed 50% of a new unit, replacement is typically the smarter investment. We give you an honest assessment — and we’ll flag whether a PSE-rebate-eligible heat pump upgrade would save you money long-term.

All Major Brands

Whether you need a like-for-like Rheem replacement or want to upgrade to a Navien or Noritz tankless system, we carry and install the right unit for your home’s demand — with a written estimate before work begins.

Water Heater Repair in Redmond

No Hot Water?

Common causes include a failed thermocouple, pilot light outage, or heating element failure. Our Redmond-based technicians diagnose on the spot and carry standard repair parts on every service van for fast, first-visit fixes.

Check Your Warranty

Water heaters typically carry a 5–15 year warranty on parts. We help you decode your model and serial number to determine if your unit is still covered — potentially saving the full 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, no-upsell assessment — including rebate options.

Thermocouple Replacement

A failed thermocouple is one of the most common gas water heater repairs — it controls gas flow and is the reason many heaters stop producing hot water. Inexpensive, stocked on our vans, and typically repaired same visit.

Anode Rod Replacement

Anode rods prevent tank corrosion caused by minerals in the water. Installing a new or dual anode rod is the single most cost-effective maintenance task to extend your tank water heater’s life.

Annual Tank Drain & Flush

Annual draining removes sediment buildup that reduces efficiency and shortens your tank’s lifespan. Older models especially benefit from regular maintenance — our technicians handle the full flush and inspection.

Redmond Neighborhoods & Surrounding Areas We Serve

Fast Water Heater Co. provides same-day water heater installation, replacement, and repair service throughout Redmond and the North Eastside tech corridor. Our Washington-licensed technicians (WA L&I) cover every Redmond neighborhood.

Inside Redmond

Downtown RedmondEducation HillGrass LawnIdylwoodOverlakeBear CreekNorth RedmondSammamish ValleyUnion HillMarymoor

Nearby Communities

KirklandBellevueSammamishWoodinvilleCottage LakeCarnationDuvall
Call by 12 PM for same-day service in Redmond and the surrounding King County. Licensed, bonded, and insured in Washington since 1986 — WA L&I contractor license on file with every quote.

Redmond Water Heater FAQs

Answers to the questions Redmond 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 Redmond, WA?

Installation cost in Redmond depends on fuel type (gas, electric, or heat pump), tank size, venting requirements, and whether code upgrades are needed for permits. Standard 40–50 gallon replacements are our most common Redmond job and typically complete same-day. For an exact quote, call us or request service online — we give firm pricing before any work begins, and every quote includes removal of the old unit, code-compliant installation, and City of Redmond Development Services filing.

Do you offer same-day water heater repair near me in Redmond?

Yes. Call by 12 PM and we’ll have a Washington-licensed technician at your Redmond address the same day in most cases. We carry common replacement parts (thermocouples, gas valves, heating elements, T&P valves, anode rods) on every truck so most Redmond-area repairs are completed in a single visit.

Is Fast Water Heater Co. licensed in Washington?

Yes — Fast Water Heater Co. is a fully licensed Washington contractor (WA L&I), bonded, and insured, serving Redmond and the Puget Sound region since 1986. Every installation is performed by Washington-licensed plumbers and pulled under the correct City of Redmond Development Services permit.

What water heater brands do you install in Redmond?

We install and service Bradford White, Rheem, A. O. Smith, Rinnai, Navien, Noritz, and Stiebel Eltron tank, tankless, and heat pump water heaters throughout Redmond. Our most-requested Redmond installs are Bradford White 50-gallon gas tanks, Rinnai tankless units, and Rheem ProTerra heat pump water heaters — which qualify for Puget Sound Energy rebates.

Do I need a permit for water heater replacement in Redmond?

Yes. Washington State requires a plumbing permit for every water heater replacement, issued through the City of Redmond Development Services for Redmond-area addresses. Our install price always includes pulling the permit, scheduling the inspection, and meeting the Washington State Plumbing Code — you don’t lift a finger. Skipping the permit risks fines and complicates home insurance claims, warranty coverage, and the resale of your home.

How long does a water heater installation take in Redmond?

Most standard tank-to-tank water heater replacements in Redmond take 2–4 hours from arrival to cleanup. Tankless and heat pump installations typically take 4–8 hours depending on venting runs, electrical upgrades, and condensate drainage. We schedule same-day whenever possible — call by noon and most Redmond homes have hot water back the same afternoon.

Do you service tankless water heaters in Redmond?

Yes. We install, flush, descale, and repair tankless water heaters throughout Redmond. Redmond’s Education Hill, Bear Creek, Overlake, and Idylwood homes range from 70s split-levels to new construction — we handle everything from basic tank swaps to full heat pump conversions with rebate paperwork. Annual descaling protects the manufacturer warranty — most tankless units we service reach 20+ years with correct maintenance.

What areas of Redmond do you serve?

We serve every Redmond-area neighborhood, including Downtown Redmond, Education Hill, Grass Lawn, Idylwood, Overlake, Bear Creek, North Redmond, Sammamish Valley, Union Hill, Marymoor, Kirkland, Bellevue, and the surrounding communities throughout King County. Call us or request service online to confirm same-day availability at your address.

Redmond Water Heater Rebates & Incentives

Redmond is served by Puget Sound Energy (PSE) for both electricity and natural gas. PSE offers strong rebates on heat pump water heaters, and gas tankless upgrades also qualify. Stack utility rebates with federal tax credits for maximum savings. Verify current eligibility and amounts at pse.com/rebates or call PSE at 1-800-562-1482.

PSE — Heat Pump Water Heater Rebate

$750 rebate on qualifying Tier 3+ ENERGY STAR certified electric heat pump water heaters. Up to $850 for income-qualified customers through PSE’s Efficiency Boost program. Must replace an existing electric water heater. Instant coupons may be available at participating retailers, or apply post-purchase at pse.com/rebates.

PSE — Gas Tankless Water Heater Rebate

Up to $400 rebate on qualifying high-efficiency gas tankless water heaters (ENERGY STAR certified). Must be installed at a PSE natural gas residential address. No current rebates for standard gas tank water heaters. Check pse.com/rebates for the current qualified products list.

Federal Tax Credit — Section 25C (through 2032)

Heat pump water heaters: 30% of project costs (including installation), up to $2,000 per year. Must meet CEE highest tier (above ENERGY STAR basic). Gas tankless/tank: 30% of costs, up to $600 per year (ENERGY STAR certified, UEF ≥ 0.81–0.95). Claim on IRS Form 5695. Equipment must include a Qualified Manufacturer (QM) code.

We Help You Maximize Savings

We partner with PSE and manufacturers for additional promotions and can help you identify the right qualifying model before purchase. Contact us — rebate amounts and eligible models change frequently, and we stay current on all programs.

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