Yes, but they're not as common as the marketing makes it sound. Most premium teak, aluminum, and woven outdoor furniture brands offer 5–15 year warranties, not lifetime coverage. The brands that do lean into lifetime warranties are usually poly lumber or HDPE furniture makers. Berlin Gardens, LuxCraft, Seaside Casual, and Breezesta, for example, advertise limited lifetime warranties on their residential poly furniture. Some smaller U.S. poly makers do too, but the established names are the safest bet. POLYWOOD and Trex Outdoor Furniture are two of the most popular urban-friendly options, but they typically offer 20-year limited residential warranties rather than lifetime ones.
That "lifetime" almost always comes with conditions. It usually applies to the original owner, for residential use, and covers manufacturing defects like cracking, splintering, or hardware failure. It does not mean you can leave cushions outside for a decade and get free replacements. Fabric, cushions, slings, normal fading, scratches, and commercial use are commonly excluded. You will also likely need proof of purchase and may need to register the product.
For urban spaces such as balconies, rooftop terraces, and small courtyards, poly furniture is a strong fit because it does not rust, does not need sealing, and handles sun, rain, and temperature swings well. It is heavier than aluminum, though, so check your building's weight rules and measure your elevator or stairwell before ordering a large set. If you want the longest possible coverage, start with Berlin Gardens, LuxCraft, Seaside Casual, or Breezesta, then read the warranty PDF before you buy. If a 20-year warranty is enough, POLYWOOD and Trex are excellent alternatives.