Storage tank
$1,600–$2,400Typical cost, including installation
WATER HEATER REPLACEMENT IN MERRILLVILLE
Merrillville, IN Water Heater
Replacement
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MERRILLVILLE AT A GLANCE
Replacing a water heater in Merrillville.
Any plumbing installation in Merrillville needs a supplemental plumbing permit. It goes to a plumbing contractor who is licensed by Indiana and registered with the town, or to a homeowner who submits an isometric drawing and signs an affidavit. NIPSCO supplies gas and electricity, and Indiana American Water supplies Lake Michigan water.
- Permit to replace with the same type
- Yes · Town of Merrillville Building Department
- Who gets the permit
- A plumbing contractor registered with the town and licensed by the State of Indiana. A homeowner can also get the permit: submit an isometric drawing of the plumbing lines for the plumbing inspector to approve, and sign an affidavit that you'll do the work.
- Electric utility
- NIPSCO
- Gas utility
- NIPSCO
- Water
- Lake Michigan water from Indiana American Water (Indiana American Water publishes a 2025 Merrilville report for water purchased from its Lake Michigan system) · Indiana American Water's Northwest (Gary-area) Lake Michigan system: 130–150 ppm (about 8–9 gpg), 2025 report
- Rebate worth checking
- NIPSCO heat pump water heater rebate (Active)
- Typical home
- Built 1979 (median) · 71% owner-occupied
- Companies found
- 4 that advertise water heater work
01 / TYPICAL PRICES
What a new water heater costs.
Know before you call.
Heat-pump tank
$2,500–$5,000Typical cost, including installation
Tankless
$2,400–$5,400Typical cost, including installation
AI equipment illustrations; models vary and images are not to scale. Typical national prices from Home Depot ↗, checked September 28, 2026. The source doesn’t say how many jobs the ranges are based on. These are not Merrillville averages or guaranteed quotes.
Compare what each quote includes.Equipment · Labor · Permits · Old heater removalHow to compare quotes →
What we know about prices in Merrillville
- National installer’s published rangeThe ranges above. Home Depot ↗
- Local company’s advertised priceNone of the local company websites we checked list a full installed price.
- Measured local dataNot collected yet, so no Merrillville average is shown.
What can change the price in Merrillville?
Electrical work, like a new circuit, needs its own supplemental electrical permit. It goes to a town-licensed electrical contractor, or to a homeowner with an approved wiring diagram and an affidavit.
02 / COMPANIES WE FOUND
Who replaces water heaters in Merrillville?
Companies that advertise water heater replacement here, with what their water heater customers say.
Companies we found in our research. They are not Ember & Tank providers or partners. We show selected reviews, not a rating or every review. How we choose reviews →
Four Seasons Heating, Air Conditioning, Plumbing, Sewer & Electric
Lists Merrillville among the areas it serves. Based in 5701 W. 73 St., Chicago, IL 60638.
- Tank
- Tankless
- Repair
- Emergency service
What the reviews say
Water heater feedback Customers praised fast, same-day water heater replacements and friendly, knowledgeable installers.
Worth knowing No water heater complaints found in the sources checked.
4 water heater reviews read, checked September 30, 2026.
Mr. Rooter Plumbing of Northwest Indiana
Lists Merrillville among the areas it serves.
- Tank
- Tankless
- Repair
- Emergency service
What the reviews say
Water heater feedback Reviewers praised same-day service, a repair on a heater over ten years old that other companies would not look at, pricing they called fair, and a clean tankless installation.
Worth knowing On Yelp, one reviewer (2021) said a heater installed through Home Depot stopped working 12 hours later and the company would not return for four days, and another (2017) said a technician on a Whirlpool warranty job ordered the wrong part, then told them to find someone else; no company response was captured.
5 water heater reviews read, checked September 30, 2026.
Summers Plumbing Heating & Cooling
Lists Merrillville among the areas it serves. Based in Multi-state company (no HQ stated); Chicago-area offices at 506 E Summit St, Crown Point, IN 46307; 1260 Transport Dr, Valparaiso, IN 46383; 1935 Brandon Ct., Suite A-1, Glendale Heights, IL 60139; 724 E Veterans Pkwy Suite A, Yorkville, IL 60560.
- Tank
- Tankless
- Heat pump
- Repair
- Emergency service
What the reviews say
Water heater feedback One reviewer praised a tankless water heater installed with new HVAC and dehumidification equipment and said the company stands behind what it sells.
Worth knowing Yelp reviewers said a son's heater was replaced with a 50-gallon power-vent tank for $4,200 without the cost being discussed (2026), a technician recommended replacement without inspecting a tank that later worked after a flush (2026), and a heater Summers installed was called for replacement just out of warranty and a $59 fee was charged despite a service plan (2025); no company responses were captured.
4 water heater reviews read, checked September 30, 2026.
Young Plumbing
Lists Merrillville among the areas it serves. Based in Valparaiso, IN (street address not shown on site pages checked).
- Tank
- Tankless
- Repair
- Emergency service
What the reviews say
Water heater feedback Reviewers praised same-day and Sunday or holiday response, a clean swap of a leaking tank (with an upsize to 50 gallons), and fair prices for repeat customers.
Worth knowing Yelp reviewers said a technician recommended a replacement costing over $1,000 where another company later fixed a wire and cleaned the unit (2019), and that an $85 diagnosis quote became $285 an hour on arrival (2023); the owner replied to the latter that the company would take the concerns into consideration.
5 water heater reviews read, checked September 30, 2026.
Order: companies based in Merrillville first, then companies whose water heater reviews we’ve read. Each group is alphabetical. These businesses are not our employees or vetted partners and do not receive requests from Ember & Tank. We haven’t checked their license, insurance or quality of work. Indiana PLA license verification ↗.
See before-and-after replacement examples from independent companies →
HOMES IN MERRILLVILLE
What Merrillville homes are like.
1979Median year built
52%Built before 1980
71%Owner-occupied
83%Heat with utility gas
70%Single-family homes
About 52% of homes were built before 1980. Older homes often have older venting, smaller closets and shutoff valves that should be checked before install day.
83% of homes heat with utility gas, so gas water heaters with existing venting are common here.
U.S. Census Bureau, American Community Survey ACS 2024 5-year ↗ (2020-2024). Heating fuel is what homes use to heat the house. It often, but not always, matches the water heater’s fuel.
LOCAL CONDITIONS
What’s different in Merrillville.
Doing it yourself takes a drawing
To pull your own plumbing permit in Merrillville, you first submit an isometric drawing of the plumbing lines for the inspector to approve, then sign an affidavit.
Bond recorded with the county
To get a town license, Merrillville contractors need a $5,000 bond recorded with Lake County government. Both the county and the town require it.
ENERGY & WATER
Who supplies Merrillville homes.
Energy
- Electric: NIPSCO
- Gas: NIPSCO
NIPSCO electric tariff: index of cities served ↗ · NIPSCO gas tariff: index of communities furnished gas service ↗
Water
Lake Michigan water from Indiana American Water (Indiana American Water publishes a 2025 Merrilville report for water purchased from its Lake Michigan system): Indiana American Water's Northwest (Gary-area) Lake Michigan system: 130–150 ppm (about 8–9 gpg), 2025 report
Indiana American Water: Merrilville 2025 water quality report ↗ · Indiana American Water: Greater Gary Area (Northwest) 2025 water quality report ↗
REBATES & CREDITS
Rebates for Merrillville homes.
For NIPSCO customers in Merrillville. Ask installers for the price before rebates, then check with the program that you qualify.
- NIPSCO heat pump water heater rebate ↗Active$750 off an ENERGY STAR heat pump water heater with a UEF of at least 2.0.
- Indiana Energy Saver Program: Home Appliance Rebate (IRA HEAR) ↗ActiveUp to $1,750 off an ENERGY STAR heat pump water heater, applied as a discount on the product and qualified-contractor installation.
- Federal Energy Efficient Home Improvement Credit (25C) ↗EndedCovered improvements made through December 31, 2025.
Checked September 30, 2026. Who qualifies and the conditions: Indiana rebates · How to check an incentive.
PERMITS & LICENSING
Permits and licenses in Merrillville.
Permits and who issues them
Merrillville requires a supplemental plumbing permit for installing or changing any plumbing, and that includes installing a water heater. Before you hire, call the Building Department (219-769-3631) to check that the contractor has a town license.
Yes. Every contractor needs a town license. Plumbing contractors file a town application with a $5,000 bond recorded with Lake County and a certificate of insurance.
Town of Merrillville Building Department ↗ · Town of Merrillville: Building Permits ↗ · Town of Merrillville Plumbing Contractor Application ↗
Check the installer’s license
Ask for the license number and search it yourself on the Indiana PLA license verification ↗. A listing on Ember & Tank is not a license check. Indiana licensing explained →
NEARBY CITIES
Compare places near Merrillville.
| City | Distance | Permit to replace | Fee | Electric |
|---|---|---|---|---|
| Hobart | 4 mi | Required | $50 | NIPSCO |
| Crown Point | 5 mi | Check with city | — | NIPSCO |
| Schererville | 7 mi | Check with city | — | NIPSCO |
| Griffith | 7 mi | Check with city | — | NIPSCO |
| Lake Station | 8 mi | Check with city | — | NIPSCO |
| St. John | 8 mi | Check with city | — | NIPSCO |
COMMON QUESTIONS
Merrillville water heater questions.
Can a homeowner replace their own water heater in Merrillville?
Yes, with a permit. Submit an isometric drawing of the plumbing lines for approval and sign an affidavit saying you'll do the work yourself.
Who supplies gas and electricity?
NIPSCO supplies both.
NIPSCO electric tariff: index of cities served ↗ · NIPSCO gas tariff: index of communities furnished gas service ↗
More guides: Indiana water heater replacement · All local guides