Now booking 2026 summer projects — Call (715) 675-2000 for a free estimate Master Plumber on every job  ·  No hidden fees, ever Family-owned since 1964  ·  Serving Wausau & surrounding areas Mon–Fri 7:00 AM – 7:00 PM  ·  5.0 ★ Google Rating Upfront estimates  ·  Premium brands  ·  Thorough cleanup guaranteed
Rheem • American Standard • A.O. Smith

Water Heater Installation
& Repair in Wausau, WI

Same-day water heater service from Wausau's most trusted licensed plumber. New installations, leak repairs, pilot light failures, and complete replacements — all to Wisconsin code. No cold showers waiting.

Water Heater Services

Everything Your Water Heater Needs

Water Heater Installation

Code-compliant new water heater installation for both tank and tankless systems. We handle permits, proper venting, and pressure relief valve setup.

  • Tank water heaters (40–80 gallon)
  • Tankless / on-demand units
  • Gas and electric models
  • Code-compliant permits & inspection
Water Heater Repair

Diagnose and fix water heater problems fast — pilot light failures, leaking tanks, thermostat issues, sediment buildup, and pressure relief valve problems.

  • Pilot light & thermocouple repair
  • Leaking tank diagnosis
  • Pressure relief valve replacement
  • Sediment flush & maintenance
Water Heater Replacement

When repair isn't the right answer, we handle complete removal and code-compliant replacement — same day in most cases for heating emergencies.

  • Old unit removal & disposal
  • Same-day replacement available
  • Upgrade to higher efficiency
  • 10+ year old unit? Time to replace
Signs You Need Service

Is Your Water Heater Telling You Something?

Don't wait for a cold shower or a flooded basement. These are the warning signs that your water heater needs professional attention right now.

Inconsistent hot water or water that never gets hot enough
Rust-colored or metallic-tasting hot water
Popping, rumbling, or banging sounds from the tank (sediment buildup)
Visible rust, corrosion, or moisture around the tank base
Your water heater is 10 or more years old
Pilot light that keeps going out on a gas water heater
Unexplained increase in your gas or electric bill
Premium Brands We Install

Quality Brands.
Built to Last.

We only install brands we trust — manufacturers with proven track records, strong warranties, and parts availability in the Wausau area.

RheemAmerican StandardA.O. SmithBradford WhiteState Water Heaters
Fast Response
Same-Day Water Heater Service

Bob Genrich personally handles every call. If your water heater fails on a weekday, we typically install the replacement the same day.

 (715) 675-2000
Tank vs. Tankless

Which Water Heater Is Right for Your Wausau Home?

Bob Genrich will help you choose — but here's a quick comparison to get you started.

Tank Water Heater
  • + Lower upfront cost ($800–$1,500 installed)
  • + Simple technology, easy to service
  • + Works during power outages (gas)
  • - Higher operating cost (constant heating)
  • - 8–12 year lifespan
  • - Can run out of hot water
Tankless Water Heater
  • + 20–30% lower energy use
  • + Endless hot water on demand
  • + 15–20 year lifespan
  • + Space savings — wall mounted
  • - Higher upfront cost ($1,500–$3,000+)
  • - Needs proper gas line sizing
What Customers Say

5.0 Stars on Google

Trusted by Wausau families for over 61 years — backed by 40+ five-star reviews.

G
Gina T.
★★★★★

"Bob arrived that afternoon and got it all taken care of. Very friendly and helpful — same-day dishwasher installation that Home Depot couldn't handle. Would definitely hire again."

M
Mark R.
★★★★★

"Called Bob in the morning and he called right back. New water heater installed by noon. Very impressed with speed and professionalism. Fair pricing with no surprises on the bill."

S
Susan K.
★★★★★

"Have used Genrich Plumbing for many years. Bob and Ron are always professional, do quality work, and clean up after themselves. Both water heater and bathroom fixture work were perfect."

See All Reviews on Google
Common Questions

Frequently Asked Questions

Cost depends on unit type (tank vs. tankless), capacity (40–80 gallon), and installation complexity. Genrich Plumbing provides free, upfront estimates before any work begins — call (715) 675-2000.

Key signs: inconsistent hot water, rust-colored water, metallic taste, popping/rumbling sounds from the tank, visible corrosion, or a unit older than 10–12 years. Contact Genrich for a free assessment.

We install Rheem, American Standard, A.O. Smith, and other premium brands selected for reliability and warranty coverage. We do not install cheap imported units.

Yes. Pilot light failures are one of our most common water heater service calls. Bob diagnoses thermocouple issues, gas valve problems, and pilot assembly failures — often repairable in a single visit.

Tank water heaters typically last 8–12 years with proper maintenance. Tankless units last 15–20 years. Hard water in Marathon County can accelerate sediment buildup — annual flushing extends life significantly.

Tank units store 40–80 gallons of heated water continuously (lower upfront cost, higher operating cost). Tankless units heat on demand (higher upfront cost, 20–30% lower energy use, endless hot water). Bob can help you choose based on your household size and budget.

Water Heater Problem? Call Wausau's Trusted Plumber.

Same-day service available. Free estimate before any work begins.

Get In Touch

Request a Free Estimate

Bob answers personally. Expect a same-day callback Mon–Fri 7 AM–7 PM.

Send a Message
Free estimates · No obligation · Fast reply
Contact Information
Address
5415 Roger Dr
Wausau, WI 54401
Business Hours
Mon–Fri: 7:00 AM – 7:00 PM
Closed weekends
★ 5.0 Google 61 Years Experience Master Plumber