Niagara warranty 2026 — Stealth 10-year porcelain advantage
Niagara warranty terms reflect water-savings brand positioning. The Stealth series carries a stronger 10-year porcelain warranty (vs Niagara mainstream 1-year), recognizing the Stealth as the brand's flagship product. The vacuum-assist trapway carries a lifetime functional warranty claim — Niagara warrants the trapway architecture won't fail under normal residential use.
Niagara warranty terms by product
| Niagara product line | Porcelain warranty | Tank trim warranty | Vacuum-assist trapway warranty |
|---|
| Stealth Sabre 77001 | 10 years (premium tier) | 1 year | Lifetime functional |
| Stealth Original | 10 years | 1 year | Lifetime functional |
| Stealth Conserver Dual-Flush | 10 years | 1 year on dual-flush cartridge | Lifetime functional |
| Liberty, Phantom, Steaful (mainstream) | 1 year | 1 year | Lifetime functional |
| Power One, Power One Plus (pressure-assist) | 1 year | 1 year | 1-year on pressure vessel |
| Niagara One (one-piece) | 1 year | 1 year | Lifetime functional |
| Niagara Compact | 1 year | 1 year | Lifetime functional |
What's covered (Stealth 10-year porcelain)
- Porcelain cracking from manufacturing defect
- Glaze degradation (not normal wear)
- Bowl outlet porcelain failure
- Tank porcelain manufacturing defect
- Vacuum-assist trapway integrity (lifetime — the trapway architecture itself shouldn't fail)
What's covered (1-year tank trim — all Niagara)
- Flapper failure within 12 months
- Fill valve mechanism failure
- Trip lever mechanism
- Tank-to-bowl gasket
- Dual-flush cartridge (Stealth Conserver) within 12 months
What's NOT covered
- User-caused damage
- Normal wear after warranty periods
- Chemical damage from harsh cleaners
- Commercial use of residential SKUs
- Modifications or non-OEM replacements
Niagara warranty claim process
- Document the issue with photos
- Contact Niagara customer service: 1-800-831-8383
- Provide model number, purchase date, retailer, description
- Provide proof of purchase
- Resolution: parts replacement, full unit replacement (for confirmed defects), or refund (rare)
Niagara warranty vs competitor warranties
| Brand | Porcelain (mainstream) | Tank trim |
|---|
| Niagara Stealth | 10-year (advantage) | 1-year |
| Niagara mainstream (Liberty, Phantom) | 1-year | 1-year |
| Kohler | Limited Lifetime | 1-year |
| TOTO | 1-year | 1-year |
| AmStd | Limited Lifetime | 5-year (best) |
| Eljer | Lifetime (original purchaser) | 5-year |
| Mansfield | Lifetime | 5-year |
Niagara warranty strengths
- Stealth 10-year porcelain warranty stronger than TOTO 1-year
- Lifetime functional vacuum-assist trapway claim
- Niagara customer service responsive for Stealth warranty claims (premium tier customer service)
Niagara warranty weaknesses
- 1-year tank trim warranty (5x shorter than AmStd 5-year)
- Mainstream (Liberty, Phantom, Steaful) porcelain only 1-year — weaker than Eljer/Mansfield lifetime
- Pressure-assist (Power One) pressure vessel only 1-year — Flushmate vessel typically lasts 10-15 years but warranty is short
- Limited geographic service network vs Kohler/AmStd
How to maximize Niagara warranty value
- Choose Stealth Sabre or Stealth Conserver — 10-year porcelain vs mainstream 1-year
- Document install conditions + keep purchase receipt
- Register product at niagaracorp.com (recommended)
- Use Niagara customer service for Stealth warranty claims (premium tier service)
- Don't modify Stealth vacuum-assist trapway — preserves lifetime functional claim