
By Robert Reagan, CEO, Flowcore Water
Licensed Texas water well contractor serving North Texas since 2006.
Published October 2026
"Zero water pressure at the tank gauge." "It runs for hours and then stops and needs to be reset." Lines like these, from real Flowcore inquiries, show why pump and pressure problems are the most common reason North Texas well owners reach out to us, and the pressure tank is often the part behind them. If yours has failed, the next question is what a well pressure tank replacement costs, and whether the tank is really the problem.
This guide covers the general price range, what drives the cost (especially tank size), how to tell a failed tank from a pump or switch problem, and how to size the replacement. For a firm number on your own system, schedule a well repair visit with Flowcore or call (817) 480-7971.
How Much Does It Cost to Replace a Well Pressure Tank?

Most well pressure tank replacements fall between $800 and $1,500 for the tank and installation, according to a July 2025 HomeGuide cost guide. Where a specific job lands depends mostly on the size of the tank, how the installation is set up and the condition of the parts around it.
That range is a general market figure, not a Flowcore estimate. The only accurate number for your well comes from an on-site look at the tank, the pressure switch and the plumbing around them.
What Drives the Cost of a Pressure Tank Replacement?
The cost of a pressure tank replacement comes down to five things: the size of the tank, how easy it is to reach, the labor involved, the parts replaced alongside it, and whether the pump itself is healthy. Of these, tank size usually makes the biggest difference.
Tank size
A larger tank is a larger, heavier piece of equipment, so it costs more to buy and more to install. HomeGuide notes that tank capacity affects both the purchase price and the installation cost, because larger tanks need sturdier mounting.
Size also affects what the tank does for the rest of the system. A larger tank stores more pressurized water between pump starts, and HomeGuide notes that this reduces how often the pump cycles, which can extend the pump's life. A tank that is too small for the household lets the pump start more often, adding wear.
That is why the cheapest tank is not always the lowest-cost choice. The right size balances the upfront price against fewer pump starts over the years, and it has to fit both the pump and the space available.
Access to the tank
A tank in a garage, well house or utility room is the simplest swap. Tanks in tight crawl spaces, or set up in a way that requires rerouting pipe, take more labor and cost more.
Labor
Labor is a meaningful share of every tank replacement, and it grows with the size of the tank and the work around it. HomeGuide notes that emergency calls typically carry higher labor rates than scheduled work.
Parts replaced with the tank
The pressure switch, pressure gauge and the fittings at the tank are often looked at in the same visit. If any of them are worn, adding them to the job raises the total, but it is usually cheaper than a second trip later.
The condition of the pump
Some systems arrive with a new switch and a new control box already installed and still will not build pressure. That is the point to stop buying parts and get a diagnosis. A well pump replacement costs considerably more than a tank, so confirming which part has failed before anything is replaced protects the budget. Our breakdown of what a well pump replacement costs covers that side.
When the Tank Is the Problem
Rapid pump cycling and pressure that swings during normal use are the classic signs of a failing tank, and Amtrol, the maker of Well-X-Trol tanks, lists both as reasons a tank may need replacing. The same symptoms can come from the pressure switch or the pump, so we cover the full diagnosis in the signs of a failing pressure tank on our well repair page. If the pump is tripping the breaker or shutting off on its own, our guide on why a well pump keeps shutting off walks through the other causes.
Waterlogged tank: check the air charge first
Bladder and diaphragm well tanks hold a sealed charge of air on one side and water on the other. When that air is lost, the tank fills with water, loses its cushion and the pump starts every time a tap opens.
Amtrol's guidance is to turn off the pump, drain the system pressure and then check the tank's air charge. If the tank has low or no air, it may need to be replaced. A tank that loses its charge again soon after a recharge points to a failed bladder or diaphragm.
Choosing the Right Tank Size
The right pressure tank size depends on household water use, the pump's flow rate and the pressure switch settings. HomeGuide's general guideline is a 20 to 40 gallon tank for one or two people, 40 to 60 gallons for a family of three or four, and 80 gallons or more for larger households or heavy irrigation.
A bigger tank only helps when it is matched to the pump's flow rate and switch settings, so sizing is part of our well pump design and sizing service rather than a guess based on what fits in the space.
Set the precharge to the pressure switch
A new tank only performs well when its air precharge matches the system. Amtrol specifies a precharge 2 psi below the pressure switch cut-in setting. On a 30/50 switch that means 28 psi, and on a 40/60 switch it means 38 psi.
Getting an Estimate for Your Tank
A pressure tank visit starts with confirming the tank is the cause: checking the air charge, the switch settings and how the pump behaves under load. Only then do we give an estimate for the tank, any worn parts and the labor.
We service pressure tanks in Haslet, Saginaw and across North Texas. When the tank is fine and the trouble is elsewhere, our well repair service covers the pump, switch and control box as well.
Frequently Asked Questions About Well Pressure Tank Replacement
How long does a well pressure tank last?
A well pressure tank typically lasts 10 to 15 years, according to HomeGuide. Water quality, how often the pump cycles and whether the air charge is checked all affect that range. Hard or mineral-heavy water can shorten tank life through corrosion and buildup.
What should a well pressure tank precharge be?
A well pressure tank precharge should be 2 psi below the pressure switch cut-in setting, according to Amtrol. That means 28 psi for a 30/50 switch and 38 psi for a 40/60 switch. The air charge is checked with the pump off and the system drained of pressure.
Can a waterlogged pressure tank be fixed?
A waterlogged pressure tank can sometimes be recharged with air, but a bladder or diaphragm tank that keeps losing its charge often has a failed bladder and needs replacing. Amtrol advises that a tank with low or no air may need replacement, so a recharge that does not hold is a clear sign.
Is a well inspection worth it before replacing the tank?
A well inspection is worth it when the cause is unclear, because the same symptoms can come from the tank, the switch or the pump. An inspection usually costs less than replacing a part that turns out not to be the problem.
If your pump is cycling or your pressure is dropping, the first step is finding out which part has actually failed. Call (817) 480-7971 or send us the details of your system, and we'll check the tank, the switch and the pump before we give you an estimate.
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