Water Heater
Replacement
No hot water is an emergency. Bison Plumbing replaces tank and tankless water heaters across Macomb and Oakland County — same-day in most cases. Macomb and Oakland County’s hard water accelerates sediment buildup and shortens tank life, so knowing when a unit has reached end of life matters. GreenSky financing available on every replacement.
Bison Plumbing replaces tank and tankless water heaters across Macomb and Oakland County. Tank replacement ($900–$2,200): traditional 40–75 gallon gas or electric. Tankless installation ($2,000–$4,500): on-demand, 15–20 year lifespan. Hybrid heat pump ($1,800–$3,500): 60–70% less energy than electric tank. Every replacement includes removal and disposal of the old unit. Bison handles replacement and new installation only — not component-level repair. GreenSky financing (Ref: 81085618) available. Part of Bison’s Plumbing Repairs services. Same-day service available.
Signs Your Water Heater Needs to Be Replaced
Not every water heater symptom means the unit is finished. Some point to a heater at the end of its service life; others show up on units that still have years left. Here is how to read them:
Tank Body Leaking
Rust or water pooling beneath the unit — from the tank body itself, not the connections — means the tank interior has corroded through. A corroded tank cannot be restored. Replacement is the only option, and the unit should be replaced promptly to avoid water damage.
Rumbling, Popping, or Banging Sounds
Loud rumbling, popping, or banging from the tank is the sound of hardened sediment being agitated by the heating elements or burner. Significant sediment buildup indicates a unit approaching the end of its useful life — especially in Macomb and Oakland County where hard water accelerates this process.
Rusty or Discolored Hot Water
Rust-colored or metallic-smelling water from the hot tap only (not cold) indicates internal tank corrosion. The anode rod — designed to sacrifice itself to prevent tank corrosion — has been consumed, and the tank wall is now corroding. Replacement is required once the water itself is discolored.
Tank Unit 8–10+ Years Old
Age alone is a valid reason to replace. A tank heater past 8–10 years in Macomb and Oakland County water conditions is running on borrowed time — and a planned replacement costs far less than an unplanned one after the tank dumps 40–75 gallons onto a finished basement floor.
Inconsistent or Lukewarm Hot Water
Hot water that runs out too quickly or never gets hot enough often traces to a heating element or thermostat rather than the tank itself. On a unit under 8 years old, that is not automatically a replacement. Bison diagnoses the heater first and tells you honestly whether it has reached end of life.
Dripping Pressure Relief Valve or Tripped Reset
A dripping T&P relief valve or a reset button that keeps tripping is a safety signal, not something to ignore or live with. On an aging tank it usually arrives alongside other end-of-life symptoms. Have the unit evaluated before it becomes an emergency.
Why Macomb & Oakland County Hard Water Shortens Water Heater Life
Hard Water + Aging Tank = Accelerated Failure in Macomb and Oakland County
Macomb and Oakland County’s municipal water supply has elevated calcium and magnesium mineral content — hard water by any measure. Every time water is heated in a tank unit, those dissolved minerals precipitate out of solution and settle as sediment on the bottom of the tank. Over years, that sediment layer grows into a thick insulating crust that forces the burner or heating element to work harder and longer to heat water through it.
The practical result: higher energy bills, shorter element lifespan, accelerated overall wear, and — for gas units — burner exposure to excessive heat that would otherwise be absorbed by the water. The national average tank water heater lifespan is 10–12 years. In Macomb and Oakland County’s hard water conditions, 8–10 years is more realistic.
Rumbling Sound
Sediment buildup is the cause of the rumbling, popping, or banging heard from aging tank water heaters. The heating element or burner is overcoming sediment insulation to heat the water.
Higher Energy Bills
A 1/2-inch sediment layer can increase energy consumption by 25–40%. The tank works harder to heat the same amount of water, running longer cycles and consuming more gas or electricity.
Anode Rod Consumption
Hard water’s mineral content accelerates the consumption of the sacrificial anode rod — the component designed to corrode before the tank wall does. Once the rod is spent, tank corrosion begins, and a corroded tank can only be replaced.
What a Bison Water Heater Replacement Includes
Bison Plumbing specializes in water heater replacement and new installation. Every job is handled end to end — nothing is left for you to arrange or haul away:
Diagnosis & Correct Sizing
The existing unit is inspected and the home’s hot water demand assessed before anything is quoted. Undersizing leaves you short on hot water; oversizing wastes energy for the life of the unit. If the heater is early in its service life and the issue is minor, Bison says so.
Permits & Michigan Code Compliance
Water heater installation is permitted, code-governed work in Michigan — covering venting, combustion air, seismic strapping where required, expansion tanks, and T&P discharge routing. Bison is a LARA-licensed plumbing contractor and installs to code.
Old Unit Removal & Disposal
The failed heater is drained, disconnected, removed from the home, and hauled away for disposal — included in every replacement, with no separate disposal charge and nothing left in your basement or garage.
Installation & Connections
New unit set in place with water connections, gas line or electrical hookup, venting, shutoff valve, and expansion tank as required. Most tank-for-tank replacements in an existing location are completed same-day.
Testing, Startup & Walkthrough
The unit is filled, purged, fired, and tested for leaks and correct temperature before the crew leaves. You get a walkthrough of the shutoffs, temperature setting, and the manufacturer warranty registration on the new heater.
All photography on this page is Bison Plumbing’s own work in Macomb and Oakland County homes.
When to Replace — The Decision Framework
Age and Condition — The Two Deciding Factors in Macomb & Oakland County
Replacement Can Likely Wait
- Tank unit is under 6 years old — most of service life remaining
- No water pooling beneath the tank body
- No rust-colored water or metallic odor from the hot tap
- No significant rumbling or popping from the tank
- A single isolated symptom on a newer unit — diagnose before deciding
- Tankless unit under 15 years old and performing normally
Replace Now
- Tank unit is 8–10+ years old in Macomb & Oakland County hard water
- Tank body is leaking — replacement is the only remedy
- Rust or discolored water from hot tap — tank corrosion active
- Significant rumbling/sediment sound — near end of life
- Repeated failures or no-hot-water events within 12 months
- Energy bills climbing as sediment insulates the tank
Three Replacement Options — Which Is Right for Your Home?
GreenSky Financing — Water Heater Replacement
Water heater replacement is an unplanned expense that rarely fits a budget. GreenSky financing (Ref: 81085618) provides same-day approval for qualified homeowners — covering tank replacement, tankless installation, and hybrid heat pump upgrades with flexible payment terms.
| Service | Cost Range | Notes |
|---|---|---|
| Tank Water Heater Replacement | $900–$2,200 | 40–75 gallon gas or electric. Existing connections, same location. Same-day in most cases. |
| Tankless Water Heater Installation | $2,000–$4,500 | On-demand gas or electric. May require gas line upgrade or dedicated electrical circuit. 15–20 year lifespan. |
| Hybrid Heat Pump Installation | $1,800–$3,500 | Electric homes with adequate space. Federal tax credits (Inflation Reduction Act) may reduce net cost. |
| Old Unit Removal & Disposal | Included | Draining, disconnection, haul-away, and disposal are included with every Bison replacement. |
Water pooling beneath a water heater from the tank body — not the connections or fittings, but the tank itself — means the interior has corroded through. This will not slow down or stop. The tank will fail completely, releasing its full contents (40–75 gallons) onto the floor. If you are seeing water beneath the tank body, shut off the water supply to the unit and call Bison for same-day replacement. (248) 247-7707.
The least expensive water heater replacement is a planned one. In Macomb and Oakland County’s hard water, tank units routinely reach end of life at 8–10 years — and when one lets go, the cost is no longer just the heater; it is flooring, drywall, and whatever was stored nearby. If your tank is at or past that age, have it evaluated and replaced before it fails on a holiday weekend. Schedule an evaluation with Bison.
Related Services
Plumbing Repairs Hub
All residential plumbing repair services — leak detection, backflow testing, sump pumps, and more.
Leak Detection & Repair
Water heater connection leaks, supply line failures, and slab leaks — located precisely before any surface is opened.
Contact Bison
Same-day water heater replacement across Macomb and Oakland County. (248) 247-7707.
Frequently Asked Questions — Water Heater Replacement
Age and condition are the two deciding factors. For tank water heaters in Macomb and Oakland County, replacement is typically the right call at 8–10 years or older, because hard water shortens tank life below the 10–12 year national average. Replace immediately if the tank body is leaking, the hot water runs rust-colored, or the tank rumbles and pops from heavy sediment — a corroded tank cannot be restored. If the unit is under 6 years old and the symptom is isolated, it may not be at end of life yet, and Bison will tell you that after diagnosing it. Tankless units carry a 15–20 year lifespan, so replacement consideration starts much later.
Macomb and Oakland County’s water supply has elevated calcium and magnesium mineral content. When heated in a tank unit, these minerals precipitate out and settle as sediment on the tank bottom. Sediment acts as an insulating layer — forcing the burner or element to work harder, increasing energy consumption, and accelerating overall wear. In Macomb and Oakland County’s hard water conditions, most tank water heaters reach end of life at 8–10 years rather than the national average of 10–12 years.
A tank water heater stores 40–75 gallons of heated water continuously — consuming energy 24 hours a day to maintain temperature. A tankless water heater heats water on demand with no storage tank, eliminating standby heat loss. Tankless units cost more upfront ($2,000–$4,500 installed vs. $900–$2,200 for a tank) but last 15–20 years vs. 8–12 for tank units and have lower long-term operating costs.
Traditional tank replacement runs $900–$2,200 installed. Tankless installation runs $2,000–$4,500. Hybrid heat pump installation runs $1,800–$3,500. Every Bison replacement includes removal and disposal of the old unit. GreenSky financing (Ref: 81085618) is available — same-day approval for qualified homeowners.
No. Bison Plumbing specializes in water heater replacement and new installation — tank, tankless, and hybrid heat pump units. Bison does not perform component-level water heater repair. If your unit is showing symptoms, Bison diagnoses it and gives you a straight answer on whether it has reached end of life. If the unit is still early in its service life and the issue is minor, Bison will tell you so rather than sell you a replacement you don’t need yet.
No Hot Water? Bison Is Same-Day.
Bison Plumbing replaces tank, tankless, and hybrid water heaters across Macomb and Oakland County. GreenSky financing available. LARA-licensed. Warren, MI since 1998.
Schedule Water Heater Replacement GreenSky Financing (248) 247-7707 3,000+ five-star customers — LARA licensed — same-day service available