Storage tank
$1,600–$2,400Typical cost, including installation
WATER HEATER REPLACEMENT IN TROY
Troy, IL Water Heater
Replacement
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TROY AT A GLANCE
Replacing a water heater in Troy.
Troy doesn't say whether a same-type water heater swap needs a permit. Its repair and remodel permit is filed by email, and the form asks for a notarized plumbing statement from an Illinois-licensed plumber. Ameren Illinois supplies gas and electricity. The city pumps its own water from wells near Collinsville.
- Permit to replace with the same type
- Check with the city · City of Troy Building & Zoning Department
- Permit fee
- The building permit fee is based on the cost of the work, using ICC valuation data. Troy doesn't publish a flat fee for water heaters.
- Who gets the permit
- The remodel/repair form asks for the plumbing subcontractor's Illinois license number (055-) and a Certification of Plumbing Installation signed by the plumber in front of a notary. Under Illinois' Plumbing License Law, the owner who lives in a single-family home can do their own plumbing if it meets the Illinois State Plumbing Code. Otherwise an Illinois-licensed plumber must do it.
- Electric utility
- Ameren Illinois
- Gas utility
- Ameren Illinois
- Water
- City of Troy Public Works Water Department (four wells in the American Bottoms aquifer at Collinsville)
- Rebate worth checking
- Ameren Illinois heat pump water heater incentives (Active)
- Typical home
- Built 1993 (median) · 74% 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 Troy averages or guaranteed quotes.
Compare what each quote includes.Equipment · Labor · Permits · Old heater removalHow to compare quotes →
What we know about prices in Troy
- National installer’s published rangeThe ranges above. Home Depot ↗
- Local permit feeThe building permit fee is based on the cost of the work, using ICC valuation data. Troy doesn't publish a flat fee for water heaters.. City of Troy Building & Zoning Department fee source ↗
- Local company’s advertised priceNone of the local company websites we checked list a full installed price.
- Measured local dataNot collected yet, so no Troy average is shown.
What can change the price in Troy?
Upgrading your electric service takes a separate Limited Use Permit.
02 / COMPANIES WE FOUND
Who replaces water heaters in Troy?
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 →
Superior Service
Lists Troy among the areas it serves. Based in 101 Stag Industrial Blvd., Lake Saint Louis, MO 63367 (second location: 17722 Chesterfield Airport Rd., Chesterfield, MO 63005).
- Tank
- Tankless
- Emergency service
What the reviews say
Water heater feedback Reviewers praised a well-done gas water heater installation and a technician who caught water heater corrosion during routine maintenance.
Worth knowing A 2025 BBB complaint alleged a water heater and drain-pan install that was never tested and later let water leak into a neighbor's unit, and that Superior charged a $100 visit fee and would not correct it; Superior responded that the work was permitted, passed inspection, excluded the existing drain system, and that the overflow came from equipment it never serviced (listed as Answered).
4 water heater reviews read, checked September 30, 2026.
Darwyn's Plumbing, Inc.
Lists Troy among the areas it serves. Based in 2702 Camp Jackson Rd, Cahokia, IL 62206.
- Tank
- Tankless
- Repair
- Emergency service
What the reviews say
We haven’t found reviews that mention this company’s water heater work yet.
Faszold Heating, Cooling, Plumbing & Electrical (Faszold Service Co.)
Lists Troy among the areas it serves. Based in 1613 East Terra Ln, O’Fallon, MO 63366.
- Tank
- Tankless
- Repair
- Emergency service
What the reviews say
We haven’t found reviews that mention this company’s water heater work yet.
Roto-Rooter Plumbing & Water Cleanup (St. Louis)
Lists Troy among the areas it serves. Based in 2671 Washington Ave, St Louis, MO 63103 (local branch of national company).
- Tank
- Tankless
- Heat pump
- Repair
- Emergency service
What the reviews say
We haven’t found reviews that mention this company’s water heater work yet.
Order: companies based in Troy 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. IDPH plumber license verification ↗.
See before-and-after replacement examples from independent companies →
HOMES IN TROY
What Troy homes are like.
1993Median year built
31%Built before 1980
74%Owner-occupied
69%Heat with utility gas
79%Single-family homes
The median home was built in 1993. A first or second replacement is common in homes this age.
69% 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 Troy.
Plumber signs before a notary
Before Troy issues a remodel/repair permit, the plumber signs a Certification of Plumbing Installation in front of a notary. The form cites the Illinois Plumbing Code (77 Ill. Adm. Code 890).
Troy, IL – Residential Remodel / Repair Building Permit Application (2026 form) ↗
Newer codes as of 2025
With Ordinance 2025-33, Troy adopted the 2021 International Residential, Mechanical and Fuel Gas Codes, the 2024 Illinois Energy Conservation Code and the 2020 National Electrical Code. Plumbing follows the current Illinois Plumbing Code.
Troy, IL – Building Permits / Inspections ↗ · Troy, IL – Adopted codes list (Ord. 2025-33) ↗
ENERGY & WATER
Who supplies Troy homes.
Energy
- Electric: Ameren Illinois
- Gas: Ameren Illinois
Troy, IL – Utilities directory ↗ · Ameren Illinois electric tariff – Cities, Villages, Communities and Adjacent Areas served ↗ · Ameren Illinois gas tariff – Cities, Villages, Communities and Adjacent Areas served ↗
Water
City of Troy Public Works Water Department (four wells in the American Bottoms aquifer at Collinsville)
City of Troy 2025 Consumer Confidence Report (IL1191000) ↗ · Troy, IL – Public Works Water Department ↗
REBATES & CREDITS
Rebates for Troy homes.
For Ameren Illinois customers in Troy. Ask installers for the price before rebates, then check with the program that you qualify.
- Ameren Illinois heat pump water heater incentives ↗Active$1,150 instant discount when a contractor buys an ENERGY STAR heat pump water heater from a participating distributor, or when you use a Program Ally contractor.
- Illinois IRA Home Energy Rebates (HEAR and HOMES) ↗Not launchedIllinois EPA says its HEAR application has not yet been processed by U.S.
- Federal Energy Efficient Home Improvement Credit (25C) ↗EndedCovered improvements made through December 31, 2025.
Checked September 30, 2026. Who qualifies and the conditions: Illinois rebates · How to check an incentive.
PERMITS & LICENSING
Permits and licenses in Troy.
Permits and who issues them
Troy uses its Residential Remodel / Repair building permit for repairs and replacements. Email it to buildingzoning@troyil.us, and ask for inspections 24 hours ahead. The city doesn't say whether replacing a water heater with the same type needs this permit.
Plumbers need Illinois plumbing and plumbing contractor licenses, listed on the notarized plumbing statement. We found no separate city plumber license.
City of Troy Building & Zoning Department ↗ · Troy, IL – Building Permits / Inspections ↗ · Troy, IL – Residential Remodel / Repair Building Permit Application (2026 form) ↗ · Troy, IL – Adopted codes list (Ord. 2025-33) ↗ · Illinois Plumbing License Law, 225 ILCS 320/3 (homeowner exemption) ↗
Check the installer’s license
Ask for the license number and search it yourself on the IDPH plumber license verification ↗. A listing on Ember & Tank is not a license check. Illinois licensing explained →
NEARBY CITIES
Compare places near Troy.
| City | Distance | Permit to replace | Fee | Electric |
|---|---|---|---|---|
| Glen Carbon | 5 mi | Check with city | $65 | Ameren Illinois |
| Edwardsville | 7 mi | Check with city | $20 | Ameren Illinois, Southwestern Electric Cooperative |
| Collinsville | 7 mi | Not required (conditions apply) | $25 | Ameren Illinois, Southwestern Electric Cooperative |
| O'Fallon | 9 mi | Check with city | By job value (from $45) | Ameren Illinois |
| Fairview Heights | 11 mi | Check with city | — | Ameren Illinois |
| Highland | 12 mi | Check with city | — | Highland Light & Power (city-owned) |
COMMON QUESTIONS
Troy water heater questions.
How do I apply for a permit in Troy, IL?
Send the Residential Remodel / Repair application to buildingzoning@troyil.us. Ask for inspections at least 24 hours in advance.
Troy, IL – Building Permits / Inspections ↗ · Troy, IL – Residential Remodel / Repair Building Permit Application (2026 form) ↗
Where does Troy's water come from?
From four city wells in Collinsville that pull from the American Bottoms sand and gravel aquifer.
More guides: Illinois water heater replacement · All local guides