Across the Minneapolis market, most whole-house tankless projects land between roughly $1,900 and $6,100. Tank-to-tankless conversions sit at the higher end, because they usually add a gas line upsize and new venting. Your number comes down to unit size, whether your gas line can feed it, and where the vent has to terminate. Every job gets a written estimate before we start.

A like-for-like tankless replacement is usually a single day. A tank-to-tankless conversion runs one to two days, because we are also upsizing gas, running new sidewall venting, and adding a condensate drain. We give you the realistic window in the written quote, not an optimistic one.

Yes, when they are sized for it. Groundwater enters Twin Cities homes at 35 to 42 degrees in January, so the unit has to raise it about 70 degrees to reach a comfortable shower. Expect a properly sized condensing unit to give up 25 to 30 percent of its rated flow at that temperature rise. We size on your January demand, which is why we ask how many fixtures run at once.

Once a year in hard-water homes, which includes most of St. Louis Park at roughly 18 grains per gallon. Homes on softened water or Minneapolis city water can often go two years. Skipping the flush scales the heat exchanger, cuts efficiency, and can void the manufacturer warranty. We can put you on an annual reminder.

Yes, and yes. Minnesota Rules 4714 requires a permit and a licensed contractor for water heater replacement, including an identical like-for-like swap. Bedrock Plumbing & Drain Cleaning pulls the permit with your city and meets the inspector on site. The inspector checks the T&P valve, venting, and expansion tank. Permit cost is included in the quoted price.

Often they need changes. A tank heater burns around 40,000 BTU. A whole-house tankless burns 150,000 to 199,000, so most homes need the gas line upsized, commonly to three quarter inch. Venting moves to a sealed sidewall termination set above the expected snow line, with the intake separated so it does not frost over. We check both before quoting, so the number you see is the number you pay.

Under ten years old with a clean maintenance history, repair almost always wins, especially if the fault is a flow sensor, igniter, or scale. Past twelve years, or with a cracked heat exchanger, replacement is the honest answer. We show you both numbers side by side on the same estimate and let you decide.

Bedrock Plumbing & Drain Cleaning works under Minnesota plumbing license #PC999936, and every technician is licensed and insured. We bring proof to the job.