Storage tank
$1,600–$2,400Typical cost, including installation
WATER HEATER REPLACEMENT IN FESTUS
Festus Water Heater
Replacement
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See what replacement costs ↓FESTUS AT A GLANCE
Replacing a water heater in Festus.
Festus requires a city permit to replace or install any plumbing, and contractors need a City of Festus license. The city doesn't publish a water heater fee; its building fee formula is for construction projects. Water comes from the Jefferson County Water Authority at about 94 mg/L hardness. For Festus, electricity is Ameren Missouri and gas is Spire.
- Permit to replace with the same type
- Yes · City of Festus Building and Planning (Building Department, Festus Public Works, 950 N. 5th Street)
- Who gets the permit
- The permit application marks the contractor section 'City License Required'. No city page says whether homeowners can pull a plumbing permit themselves.
- Electric utility
- Ameren Missouri
- Gas utility
- Spire
- Water
- City of Festus Water Department, distributing water produced by the Jefferson County Water Authority (JCWA) plant · 94.3 mg/L (about 5.5 gpg) carbonate hardness in an August 2025 sample, JCWA 2025 Annual Water Quality Report
- Rebate worth checking
- Missouri IRA Home Energy Rebates (HOMES and HEAR) (Not launched)
- Typical home
- Built 1983 (median) · 58% owner-occupied
- Companies found
- 2 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 Festus averages or guaranteed quotes.
Compare what each quote includes.Equipment · Labor · Permits · Old heater removalHow to compare quotes →
What we know about prices in Festus
- 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 Festus average is shown.
02 / COMPANIES WE FOUND
Who replaces water heaters in Festus?
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 →
Linek Plumbing Company
Lists Festus among the areas it serves. Based in 24 Kirkham Industrial Ct, Webster Groves, MO 63119.
- Tank
- Tankless
- Repair
- Emergency service
What the reviews say
Water heater feedback Testimonials praised careful floor protection and cleanup, clear communication, and the office finding a same-day crew after a scheduling mix-up.
Worth knowing No water heater complaints found in the sources checked.
4 water heater reviews read, checked September 30, 2026.
Roto-Rooter Plumbing & Water Cleanup (St. Louis)
Lists Festus 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 Festus 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. Missouri has no statewide plumbing license (check your city or county) ↗.
See before-and-after replacement examples from independent companies →
HOMES IN FESTUS
What Festus homes are like.
1983Median year built
47%Built before 1980
58%Owner-occupied
50%Heat with utility gas
75%Single-family homes
About 47% of homes were built before 1980. Older homes often have older venting, smaller closets and shutoff valves that should be checked before install day.
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 Festus.
Softer water than much of the region
Festus gets its water from the Jefferson County Water Authority, whose 2025 report shows hardness of 94.3 mg/L. That's well below the 150–280 mg/L in St. Charles, Franklin County and parts of St. Louis County.
Allow time for the permit
The city says permits are usually ready 1 to 2+ weeks after you apply, so plan ahead if the replacement isn't an emergency.
City of Festus – Application for Plan Examination & Building Permit (PDF) ↗
ENERGY & WATER
Who supplies Festus homes.
Water
City of Festus Water Department, distributing water produced by the Jefferson County Water Authority (JCWA) plant: 94.3 mg/L (about 5.5 gpg) carbonate hardness in an August 2025 sample, JCWA 2025 Annual Water Quality Report
City of Festus – Water Department ↗ · Jefferson County Water Authority 2025 Annual Water Quality Report (MO6071352), via City of Festus ↗
REBATES & CREDITS
Rebates for Festus homes.
For Ameren Missouri and Spire customers in Festus. Ask installers for the price before rebates, then check with the program that you qualify.
- Missouri IRA Home Energy Rebates (HOMES and HEAR) ↗Not launchedMissouri expects about $76 million for HOMES and $75 million for electrification and appliance rebates.
- Federal Energy Efficient Home Improvement Credit (25C) ↗EndedCovered improvements made through December 31, 2025.
Checked September 30, 2026. Who qualifies and the conditions: Missouri rebates · How to check an incentive.
PERMITS & LICENSING
Permits and licenses in Festus.
Permits and who issues them
Festus says any project that replaces or installs plumbing or electrical needs a permit. Send the Application for Plan Examination & Building Permit (online form or PDF) to Festus Public Works. The city contacts you when the permit is ready, usually in 1 to 2+ weeks.
Contractors need a City of Festus license. The yearly business license for plumbing contractors is $50.
City of Festus Building and Planning (Building Department, Festus Public Works, 950 N. 5th Street) ↗ · City of Festus – Residential Building Permit Requirements ↗ · City of Festus – Application for Plan Examination & Building Permit (Ver. 07/2023, PDF) ↗ · City of Festus – Schedule of Annual Business License Fees ↗ · City of Festus – Building Fee Table ↗
Check the installer’s license
Ask for the license number and search it yourself on the Missouri has no statewide plumbing license (check your city or county) ↗. A listing on Ember & Tank is not a license check. Missouri licensing explained →
NEARBY CITIES
Compare places near Festus.
| City | Distance | Permit to replace | Fee | Electric |
|---|---|---|---|---|
| Arnold | 14 mi | Required | $50 | Ameren Missouri |
| Oakville | 17 mi | Required (county) | $47 | Ameren Missouri |
| Mehlville | 20 mi | Required (county) | $47 | Ameren Missouri |
| Lemay | 23 mi | Required (county) | $47 | Ameren Missouri |
| Eureka | 23 mi | Required | $10 | Ameren Missouri |
| Affton | 23 mi | Required (county) | $47 | Ameren Missouri |
COMMON QUESTIONS
Festus water heater questions.
Do I need a permit to replace a water heater in Festus?
Yes. The city says any project that replaces or installs plumbing or electrical needs a permit. Send the building permit application to Festus Public Works or use the online form.
Does my plumber need a Festus license?
Yes. The permit application requires a city-licensed contractor, and the yearly business license for plumbing contractors is $50.
City of Festus – Building Permit Application (PDF) ↗ · City of Festus – Annual Business License Fees ↗
How hard is Festus water?
The Jefferson County Water Authority's 2025 report lists hardness of 94.3 mg/L (about 5.5 grains per gallon).
More guides: Missouri water heater replacement · All local guides