The average life expectancy of a natural gas water heater is about 13 years. With proper water heater maintenance it may last 15 years, but many customers choose to replace their water heater after 12 years and begins leaking or underperforming. A broken water heater can discharge as much as 75 gallons of water onto your floor.COMMERCIAL AND RESIDENTIAL PLUMBING AND HARDWARE IN MAPLE GROVE, MN. LeVahn Brothers Plumbing and Hardware Hank is a family owned residential and commercial plumbing contractor and also a Hardware Hank hardware store. We have been serving Minneapolis and the western suburbs of the Maple Grove and Plymouth area for over 90 years.How much it costs to replace your water heater depends on many factors, so it’s impossible to give you an exact number without first seeing your current water heater.. But we can give you a rough range. A traditional tank style water heater installed will usually run $700 to $2000 while a tankless water heater is much more, usually coming in between $3,200 and $4,500.The shop flushed the heater core, replaced the timing cover and installed a new 195-degree thermostat. The heater core and water pump were replaced within the past two years. I am still not satisfied.How much replacing a water heater should cost. Average costs and comments from CostHelper’s team of professional journalists and community of users. With all needed parts and labor, hiring a plumber to install a traditional gas water heater costs $300-$3,500 or more, depending on capacity (with 40 or 50 gallons the most common sizes); length of warranty (typically 5-12 years); and the amount.With over 80 years of history, a consistent track recording of receiving top ratings and awards for our products, and the honor of being the best-selling brand of water heaters in America, we are certain you will be satisfied with whichever rheem water heater you choose for your family’s heating and cooling needs.Master Plumber Raymond Snesrud has been plumbing in the twin cities for 10 years. We are experts in all your water heater repair & installation needs!”We’ve had to replace the dishwasher. We’ve had to replace our hot water heater. We’re on our third or fourth washing machine,” explained Charlton. Many residents buy bottled water as well. Heida said.