Same-Day Service Available
Water Heater Replacement, Repair & Installation in Louisville, KY
No hot water? Leaking tank? Our licensed Louisville plumbers diagnose and fix water heater problems fast — tank or tankless, gas or electric. Upfront pricing, same-day service, satisfaction guaranteed.
Louisville's Water Heater Experts
Expert Water Heater Service for Louisville Homeowners
Golden Plumbing is Louisville's go-to for water heater repair, replacement, and installation. Whether your tank water heater is leaking, your pilot light keeps going out, or you're ready to upgrade to a tankless system, our licensed technicians handle every job with the same care — fast, clean, and at a fair, upfront price.
We service all makes and models throughout Louisville, KY and surrounding areas including Shively, St. Matthews, Jeffersontown, the Highlands, Middletown, and more. Most water heater repairs and replacements are completed in a single visit, same day.
Not sure if you need a repair or a full replacement? We'll assess your water heater honestly and give you both options — so you can make the right call for your home and budget.
- No hot waterFailed heating element, pilot light, or gas valve
- Lukewarm waterBad thermostat, undersized unit, or failing element
- Leaking tankCorroded tank, loose fitting, or failed drain valve
- Rusty or discolored waterCorroding anode rod or tank interior
- Popping or rumbling noisesSediment buildup inside the tank
- Pilot light won't stay litBad thermocouple or clogged pilot tube
- Water heater over 10 years oldTime to assess repair vs. replace
- Rising energy billsLoss of efficiency signals system decline
What We Do
Water Heater Services We Offer in Louisville
From emergency repair to full tankless installation, we handle every water heater job throughout Louisville, KY.
Water Heater Repair Louisville KY
Fast diagnosis and repair of any water heater problem — heating elements, thermostats, thermocouples, pilot assemblies, pressure relief valves, and more. We carry common parts on our trucks for same-day fixes.
- No hot water diagnosis & repair
- Pilot light & igniter repair
- Thermostat & element replacement
- Pressure relief valve service
- Leak repair (fittings, valves, drain pan)
Tank Water Heater Installation & Replacement
Professional installation of 30–75 gallon tank water heaters for Louisville homes. We handle full removal of your old unit, proper venting, updated supply lines, drain pans, and code compliance.
See water heater replacement →
- Gas & electric tank water heaters
- Rheem, AO Smith, Bradford White & more
- Proper venting & code compliance
- Old unit haul-away included
- Same-day replacement available
Tankless Water Heater Installation Louisville
Upgrade to endless hot water and lower energy bills with a tankless (on-demand) water heater. We install and service all major brands including Navien, Rinnai, and Noritz throughout Louisville and surrounding areas.
- Gas & electric tankless systems
- Navien, Rinnai, Noritz, Rheem
- Proper gas line sizing & venting
- 20–30% energy savings vs. tank units
- Lifespan of 15–20+ years
Tankless Water Heater Repair
Tankless water heater not firing or showing error codes? Our technicians diagnose and repair ignition failures, flow sensor issues, heat exchanger problems, and scale buildup that affects performance.
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- Error code diagnosis
- Ignition & sensor repair
- Descaling & flushing service
- Venting corrections
- All brands serviced
Water Heater Maintenance & Flushing
Annual maintenance extends water heater life and keeps energy bills in check. We flush sediment from the tank, inspect the anode rod, test the pressure relief valve, and check all connections.
- Full tank flush & sediment removal
- Anode rod inspection & replacement
- Pressure relief valve test
- Supply line & connection check
- Tankless descaling service
Expansion Tank Installation
Louisville homes with closed plumbing systems often require an expansion tank to protect the water heater and prevent pressure buildup. We install and inspect expansion tanks to Louisville code requirements.
- Required for closed plumbing systems
- Extends water heater lifespan
- Prevents pressure valve failures
- Code-compliant installation
- Inspection & replacement service
Recent work from our own trucks
Real jobs in Louisville homes — not stock photography.
Good to know
Emergency water heater repair and routine service
Emergency water heater repair
No hot water, a leaking tank, or a pilot that will not stay lit — call before 6 PM and we are usually there the same day. If the tank is leaking, turn off the cold supply valve on top of the heater and the gas or breaker, then call. A leaking tank cannot be repaired; we will tell you that on the phone so you are not paying for a trip to hear it.
Water heater service and maintenance
A flush and anode check every two years is the difference between an 8-year heater and a 15-year heater. Read our maintenance article before you book — it says plainly which service is worth paying for and which is not. When a repair stops making sense, repair vs. replace shows the math.
Expansion tank repair and replacement
The small tank on the cold line above your heater is an expansion tank. When it fails you get a relief valve that drips, a bang in the pipes when a faucet shuts, or pressure that climbs while the heater runs. Louisville code requires one on any closed system with a backflow device or pressure reducer. We test it in two minutes, and a replacement is a same-visit job.
Tankless water heater repair
Error codes, hot water that pulses cold, or a unit that will not fire are the common tankless calls. Most are scale on the heat exchanger or a dirty inlet filter, and a descale service fixes them. Read the tankless problems guide first; if you are weighing a new unit, what tankless costs has the real numbers.
From our own jobs
Water heater replacement and repair in Louisville: what we actually do
Water heater replacement in Louisville
Five of every six tank water heaters we installed in the 12 months to September 2026 ran on natural gas, and the most common was a 40-gallon gas tank. That like-for-like swap is about three hours on site. From our price book: a 40-gallon gas tank is $2,000–$2,200 installed, a 50-gallon gas tank $2,200–$2,400, and an electric tank $1,800–$2,200. The price includes the new heater, the labor and hauling the old tank away. Kentucky requires a plumbing permit for a water heater replacement, and we handle it for you. The installation carries a one-year workmanship warranty. See every size and price.
Gas water heater repair
Most gas water heater calls come down to one part. A pilot that lights and then goes out is usually the thermocouple ($200–$300 to replace). No flame at all, or a control that will not hold, points to the gas control valve ($600–$700). A lazy yellow flame or soot means the burner needs to be pulled and cleaned. If the pilot only needs a relight, that is under $100. On a heater past about ten years old we tell you straight whether the repair is worth it, because repairs on an aging tank carry no warranty. Pilot will not stay lit? If you smell gas, leave the house first and call LG&E at (502) 589-1444 from outside.
Same-day water heater repair
Call Monday to Friday between 8 AM and 6 PM and most water heater repairs are same-day; a standard tank swap often is too. We quote the price before we start. Nobody is on call overnight, so after hours get an instant estimate from Goldie or book a time online, and our office calls you first thing the next business morning. If the tank is leaking, close the cold-water valve on top of the heater and turn off the gas or the breaker while you wait.
Straight answers
Water heater questions we answer every week
What size water heater does a Louisville home need?
The heater we install most in Louisville homes is a 40-gallon gas tank. A household of four or more, or a home with a large soaking tub, usually does better with 50 gallons. If you run out of hot water today, one size up is the usual fix.
Can I supply my own water heater?
Yes. If you buy the heater yourself, our installation is $800–$1,000 from our price book. Our one-year workmanship warranty covers the installation only; the heater itself carries whatever warranty its manufacturer gives.
Does a new water heater need an expansion tank?
If your home has a pressure-reducing valve or a backflow device on the water main, yes. That makes the plumbing a closed system, and code requires a thermal expansion tank. We check on the first visit. An expansion tank is about $430 installed.
Is it worth repairing a 10-year-old water heater?
Not if the tank itself leaks: a rusted-through tank cannot be repaired. A thermocouple or a control valve on an older gas heater can still make sense, but repairs on an aging tank carry no warranty, so we show you both prices and you choose. Repair or replace: the math.
Repair or Replace?
Should You Repair or Replace Your Water Heater?
Not sure which way to go? Here's a quick guide — and we'll always give you an honest recommendation when we assess your system.
Repair Makes Sense When...
- Your water heater is under 8 years old
- The issue is a single component (element, thermostat, thermocouple)
- The repair cost is under 50% of a new unit's price
- No signs of tank corrosion or leaking from the base
- The unit has been maintained regularly
- You just need more time before a planned upgrade
Replacement Makes Sense When...
- Your tank is 10+ years old (12+ for tankless)
- The tank is leaking from the base — this can't be repaired
- You're seeing rust-colored water consistently
- You've repaired the same issue more than once
- Repair cost exceeds 50% of a new unit
- Your unit can't meet your household's hot water demand
Brands We Service
Water Heater Brands We Install & Repair in Louisville
Why Golden Plumbing
Why Louisville Chooses Us for Water Heater Service
Same-Day Water Heater Service
No hot water means no waiting. We offer same-day water heater repair and replacement throughout Louisville, KY. Most jobs are completed in a single visit.
Upfront, Honest Pricing
You'll know the full cost before we touch anything. No upsells, no "diagnostic fees" that disappear into the final bill — just a clear, fair price and expert work.
Licensed & Insured Technicians
Every Golden Plumbing technician is fully licensed and insured in Kentucky. We follow Louisville plumbing codes, gas safety standards, and manufacturer specs on every job.
4.8 ★ · 486 Google Reviews
Louisville homeowners trust us because we do what we say. Our 486 Google Reviews speak to our commitment to quality, punctuality, and honest service.
All Brands & Types
Tank or tankless, gas or electric, 40-gallon or commercial — we service every water heater type and all major brands. One call handles it all.
Satisfaction Guaranteed
Every water heater repair and installation is backed by our satisfaction guarantee. If something isn't right, we return and fix it at no additional charge.
Ready to Get Your Hot Water Back?
Same-Day Water Heater Service in Louisville, KY
Licensed Louisville plumbers available today. Free estimates, upfront pricing, and work guaranteed.
FAQ
Water Heater Questions — Answered
How much does water heater replacement cost in Louisville, KY?
How long does it take to replace a water heater?
When should I replace my water heater?
Is a tankless water heater worth it in Louisville?
Do you offer same-day water heater repair in Louisville?
What water heater brands do you install and repair?
Why does my water heater make a popping or rumbling noise?
What size water heater do I need for my Louisville home?
Service Areas