Pressure tank bladder replacement: often a new tank, $800–$1,800
Most home pressure tanks cannot take a new bladder, so a failed one means a new tank at $800–$1,800 installed. Supplier Mid Atlantic Water says the bladder is sealed inside the shell on residential tanks. Amtrol does sell replaceable bladders, but only on its full acceptance and partial acceptance Well-X-Trol designs.
1,Key figures
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Which tanks can be rebuilt
Amtrol makes Well-X-Trol tanks in three designs: diaphragm, full acceptance and partial acceptance. Its product page lists a replaceable bladder on the full acceptance and partial acceptance designs, with the note that it avoids replacing the tank. Mid Atlantic Water, which sells tanks, takes the blunter view that residential bladder tanks cannot be repaired and that anyone quoting a bladder replacement is really replacing the tank.
Check the model plate before you pay for a diagnosis. If your tank is not one of the replaceable designs, a torn bladder ends its life.
What we could not price
We found no published price for a replacement bladder for a home-size tank. The bladders we saw listed were for large commercial models. Until a supplier price list turns up, compare any bladder quote against the cost of a new tank of the same size.
| Option | Published price | Source |
|---|---|---|
| Plumber supplies and installs a new tank | $800–$1,800 | Mid Atlantic Water, 2026 |
| Owner installs a box-store tank | $400–$750 | Mid Atlantic Water, 2026 |
| Replacement bladder, home tank | no published price | none found |
Sources1
Rule out the air charge first
A tank that short-cycles may only have lost its air charge. The Driller says a captive-air tank should be charged to about 2 psi below the pressure switch cut-in, checked with the water side empty. Boshart, a supplier, adds that 2 psi is the minimum for a 20/40 switch and that a 40/60 switch should sit about 6 psi below. If the tank takes air and holds it, the bladder is fine.
Common questions
How do I know the bladder has failed?
Water coming out of the air valve, or a tank that will not hold its air charge with the water side drained, points to a failed bladder or diaphragm.
Is a replaceable-bladder tank worth the extra cost?
It can be on a larger tank. Amtrol markets the replaceable bladder as a way to avoid replacing the tank, but we found no home-size bladder price to compare.
For the cost of a finished well in your state, see how much a well costs.
Sources
- How Much Does a Well Pressure Tank Cost? , Mid Atlantic Water LLC (water-system supplier, nationwide). Accessed November 8, 2026. Updated 2026-10-14; prices live as of 2026-09. Tank replaced by plumber $800-$1,800 all-in (20-44 gal); labor $200-$500; submersible pump job $1,000-$2,500; tank plus pump $2,500-$5,000+. Supplier, not an installer.
- Well-X-Trol Pressure Tanks (product page) , Amtrol (Worthington Enterprises). Accessed November 9, 2026. footer (c) 2026 Worthington Enterprises
- Pressure Tanks , The Driller (Bob Pelikan). Accessed November 9, 2026. January 3, 2006
- What PSI should a tank's pre-charge pressure be set to? , Boshart Industries (supplier knowledge base). Accessed November 9, 2026. April 1, 2024
How these figures are built: methodology. Updated November 2026.