How much does it cost to replace a water heater in Denver, CO?
Replacing a standard tank water heater in Denver, CO typically runs $1,400–$2,800 installed, including the new unit, labor, permits, and haul-away of the old tank. A like-for-like swap (same size, same fuel, same spot) lands at the low end; a bigger tank, a fuel switch, or a relocation pushes it up. Tankless installs run $2,800–$5,500. Any quote far below $1,400 usually excludes the permit or the expansion tank — ask for the itemized version.
Likely causes
- Age — Most tank heaters last 8–12 years. Past 10, replacement beats repair almost every time.
- Tank leak or rust — Water at the base or rusty hot water means the tank itself is failing — not repairable.
- No hot water — A dead heating element or burner is a repair; on an old unit it's the trigger to replace instead.
What you can check yourself
- Read the label: the manufacture date and gallon size are printed on the tank — that's what sizes the replacement.
- Measure the space and note the fuel type (gas or electric) before getting quotes; both change the price.
- Ask each plumber whether the quote includes the permit, expansion tank, and haul-away — the three classic exclusions.
Typical cost
Typical in Denver, CO: standard tank replacement $1,400–$2,800 installed; tankless $2,800–$5,500. Federal and utility rebates may apply — ask the installer to itemize them.
When to call a pro
Water pooling at the base, a rotten-egg or gas smell, or no hot water at all in winter — book the replacement now; a failed tank can flood the space it sits in.
Plumber pros in Denver, CO
- Rk Mechanical · 3800 Xanthia St, Denver, CO · +13035769696
- Eagle Pipe · 1228 15th St Ste 200, Denver, CO · +17134647473
- Assured Backflow · 1330 Logan St, Denver, CO · +13036806011
- Golden Hands Plumbing & Heating · 1240 East Colfax Avenue, Denver, CO · +1-720-602-6975
- Go With the Flow Plumbing · Denver, CO · +12148508687
- US Plumbers Home Service Denver · 2020 Lawrence St #1025, Denver, CO · (720) 640-4086
- Denver Sanitary · 3161 Walnut St, Denver, CO · +13032950331
- City Emergency Plumbing Denver Services · 3600 E 40th Ave, Denver, CO · (719) 851-3128
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Data by Servik — verified local pros from official license records and public sources. Cost figures are typical ranges, not quotes; a pro's written estimate is the real number.