Uponor PEX Lawsuit: AquaPEX Pipe Cases Move Forward, No Settlement
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If your home was plumbed with red, white or blue Uponor AquaPEX pipe from about 2010 on, several proposed class actions claim that pipe oxidizes, cracks and leaks years early. The biggest development so far: on March 19, 2026 a federal judge in San Francisco refused to push homeowners into private arbitration. As of October 2026 there is no class-wide uponor pex settlement, no fund and no claim form.
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Reviewed by Leonard Goldberg, Editor · Last updated
What the Uponor PEX Lawsuit Alleges
Uponor AquaPEX is cross-linked polyethylene (PEX) water pipe sold in three colors: red for hot water, blue for cold and white for both. The complaints cover pipe made from roughly 2010 on. One complaint says, on information and belief, that Uponor stopped making the red and blue pipe in 2021.
The lawsuits allege that Uponor’s process does not mix protective antioxidants evenly into the plastic, and that the flame treatment used to put the color coating on red and blue pipe destroys antioxidants on the outer wall. The result, they claim, is oxidation, microcracks and leaks — often within three to 10 years of installation — even though Uponor has promoted a life expectancy of “well over 100 years.” They also allege stress cracking next to the reinforcement rings at fittings, and that Uponor knew of the problem but did not disclose it.
A central point for homeowners: the complaints say “Poor installation practices cannot cause these defects in the class pipe and perfect installation practices will not prevent them.” Uponor denies the claims, and there has been no Uponor PEX recall. None of these allegations has been proven.
Case Details
There is no single case and no MDL. The cases in the news, all in federal court:
California (lead case): Binkley v. Uponor, Inc., No. 3:25-cv-07180-EMC, Northern District of California, filed August 25, 2025, together with the related condominium case 1625 Riviera Homeowners Association v. Uponor, Inc., No. 25-cv-07176-EMC. Both are before U.S. District Judge Edward M. Chen. An amended Binkley complaint was filed May 12, 2026.
California (San Diego): Clifford v. Uponor, Inc., No. 3:25-cv-01286-BJC-DDL, Southern District of California, filed May 20, 2025 by an Oceanside homeowner.
Minnesota (nationwide class): Fitzpatrick v. Uponor, Inc., No. 0:25-cv-04268, District of Minnesota, filed November 7, 2025. Uponor, Inc. is based in Apple Valley, Minnesota.
Tennessee: Carrico v. Uponor, Inc., No. 3:23-cv-00497, Middle District of Tennessee.
Ended: Matzdorf v. Uponor, Inc., No. 1:21-cv-02057 (D. Colo.), settled privately and was dismissed in October 2024.
Status: Cases Survive, No Settlement
The key ruling came on March 19, 2026. Judge Chen denied Uponor’s motion to compel arbitration (Uponor had argued its online warranty bound homeowners to private arbitration), denied its motion to strike the class allegations, and let the negligence and strict-liability claims go forward. He also granted parts of Uponor’s motion: the implied-warranty, Song-Beverly and unjust-enrichment claims were dismissed for good, the consumer-protection and concealment claims were dismissed with permission to refile, and he struck damages under California’s economic loss rule, which Uponor had invoked against repair, replacement and loss-of-value damages “for the pipes themselves.” Whether a class can be certified, he wrote, is better decided “after discovery.” Plaintiffs filed an amended complaint on May 12, 2026.
In Tennessee, Bloomberg Law reported that the court likewise denied Uponor’s bid to compel arbitration. But according to Judge Chen’s order, that court (in a March 31, 2025 decision) also found that individual issues — such as whether leaks came from the pipe or from installation — would predominate in a class action against Uponor. That split is the fight to watch.
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Who the Proposed Classes Cover
California (Binkley): owners of residential property in California that contain or contained Uponor PEX red, white and/or blue pipe manufactured and installed from 2010 to the present. The amended complaint limits the class to single-family homes and excludes installers and home developers. Condominiums are the subject of the separate Riviera case.
Nationwide (Fitzpatrick, Minnesota): owners of residential property throughout the United States that contain or contained the same red, white or blue pipe; the complaint uses a 2010–2025 period.
Nobody is a class member yet — these are proposed classes. You do not sign up anywhere. If a class is certified or a settlement is reached, notice goes out through a court-appointed administrator.
How to tell if you have it: PEX is printed along its length with the maker’s name. Look at exposed pipe near the water heater, under sinks or at the manifold for “Uponor” or “AquaPEX.” Photograph the markings and keep repair invoices and leak photos.
Is There an Uponor PEX Settlement?
Two past matters cause confusion. The Colorado AquaPEX case (Matzdorf) settled in 2024, but privately — only the named plaintiffs settled, and other owners’ claims were dismissed without prejudice, so they can still sue. The older George v. Uponor case in Minnesota (No. 12-CV-249) produced a $21 million settlement, according to class counsel Berger Montague, but it covered Uponor’s yellow brass fittings, not AquaPEX pipe.
For a sense of how plumbing-defect settlements can work, the NIBCO PEX settlement paid percentages of documented leak damage — see our NIBCO PEX payout report. That is context, not a prediction for Uponor. If you have leak damage now, your homeowners insurance claim is a separate track; our home insurance claim calculator can help you size it.
How cases like this one end
Our copy of the federal courts’ own case database covers 5,246 federal civil cases of this typeclosed in U.S. federal district courts between 2015 and 2025, 20.8% of them filed as class actions:
- 37% ended in a settlement recorded by the court. Another 14.3% were dismissed voluntarily, which often follows a private settlement — so the real settlement share sits between 37% and 51.3%.
- 4.4% were decided on a motion before any trial.
- 1 in 238 reached a trial (0.4%), after a median of 26.4 months.
- Median time from filing to the end of the case: 9.2 months.
- Only 92 of them (1.8%) record a money award at all; the median of those is $297,500.
These are base rates for this type of case — not a prediction about this lawsuit, and not legal advice. Source: Federal Judicial Center, Integrated Database (civil), analysed by Settlement Insight. Cases heard in state courts are not included.
Uponor PEX Lawsuit Timeline
- 1
July 29, 2021 — Colorado Case Filed
Matzdorf v. Uponor (D. Colo., No. 1:21-cv-02057) alleges that flame-treating red and blue PEX strips its antioxidant protection.
- 2
October 10, 2024 — Colorado Case Dismissed
After a settlement notice on May 6, 2024, the parties file a stipulation of dismissal. The settlement is private; there is no class fund.
- 3
March 31, 2025 — Tennessee Ruling
In Carrico v. Uponor (M.D. Tenn.), the court finds that individual issues would predominate in a class action, per Judge Chen’s later summary.
- 4
May–November 2025 — New Class Actions
Clifford (S.D. Cal., May 20), Binkley and Riviera (N.D. Cal., August 25) and Fitzpatrick (D. Minn., November 7, proposed nationwide class) are filed.
- 5
March 19, 2026 — No Forced Arbitration
Judge Edward M. Chen denies Uponor’s motion to compel arbitration and to strike class allegations; some claims are trimmed.
- 6
May 12, 2026 — Amended Complaint
Binkley plaintiffs refile. As of October 2026 there is no certified class, no settlement and no claim form.
Three Things to Watch For
Leaking pipes, big repair bills and no claim form — that combination attracts people selling something:
“Uponor PEX settlement claim” sites
No class-wide Uponor AquaPEX settlement exists, so no claim portal exists. A form that asks for your Social Security number, bank details or a fee to “reserve your payout” is not a court process. Real notices name the court and case number.
Repipe contractors promising Uponor will pay
Some sales pitches suggest the lawsuit will reimburse a full repipe. Nothing guarantees that. Get independent quotes, keep the old pipe sections and invoices, and decide on repairs based on your home, not a promised lawsuit payout.
Signing away your claim
If Uponor, a builder or an installer offers to pay for a leak, read any release before signing — it may give up claims for future leaks. Do not accept a warranty arbitration clause as settled law either: two federal courts have refused to force homeowners into arbitration on it.
Uponor PEX Lawsuit — Questions People Ask
What is the Uponor PEX lawsuit about?
Several proposed class actions allege that Uponor’s red, white and blue AquaPEX pipe, made from about 2010 on, oxidizes and cracks prematurely, causing leaks and property damage. Uponor denies the allegations. The lead case is Binkley v. Uponor in federal court in San Francisco.
Is there an Uponor PEX settlement I can claim from?
No. As of October 2026 there is no class-wide uponor pex settlement, no fund and no claim form for AquaPEX pipe. The 2024 Colorado settlement was private and paid only the named plaintiffs.
Does it matter whether my pipe is red, white or blue?
All three colors are covered by the complaints. The red and blue pipe carries a color coating applied with flame treatment, which the lawsuits say makes it more vulnerable. One complaint says Uponor stopped making red and blue pipe in 2021.
How do I know if my house has Uponor PEX?
PEX pipe is printed along its length with the manufacturer’s name. Check exposed runs near the water heater, under sinks or at the manifold for “Uponor” or “AquaPEX,” and photograph the markings. Your builder or plumber may also have records.
Uponor blamed my leak on installation or water pressure. Is that the end of it?
Not necessarily. The lawsuits allege that installation cannot cause or prevent the defect. One plaintiff says Uponor denied the installer’s reimbursement request by blaming water pressure. Keep the denial letter, the failed pipe sections and repair invoices.
Do I have to do anything to join?
No. There is nothing to join today. If a class is certified or a settlement is reached, notice will come from a court-appointed administrator. You can talk to a lawyer about your own claim at any time, especially if your damage is large.
Can Uponor force me into arbitration?
Uponor has argued that its online warranty requires arbitration. On March 19, 2026 Judge Edward M. Chen rejected that argument for the California homeowners, and Bloomberg Law reported a similar ruling in Tennessee. Other courts could still decide differently.
Is this the same as the old Uponor brass fitting settlement?
No. George v. Uponor (D. Minn., No. 12-CV-249) concerned Uponor yellow brass fittings and, according to class counsel, settled for $21 million. The current AquaPEX cases are about the plastic pipe itself.
Separate from this case: were you injured in the last 2 years?
Class-action payouts are fixed amounts through an administrator. A personal injury claim is a different case — and often worth far more. Free estimate, no obligation.