Eight to twenty years covers most blinds, which is a wide enough range to be almost useless as an answer. The variable that matters most is not the material. It is how much sun the window gets.
Realistic lifespans by material
- Aluminum: 10–20 years. The metal does not degrade; bent slats are the realistic failure.
- Faux wood: 10–20 years for a quality slat, considerably less for a bargain one that yellows.
- Real wood: 10–20 years indoors and away from direct sun; less on a hard western exposure where louvers can bow.
- Fabric shades: 8–15 years, almost entirely determined by UV exposure.
- Shutters, 20-plus years. This is the main argument for buying them.
A north-facing bedroom blind can look new at fifteen years. The same blind on a west-facing living room window in Colorado Springs may show its age at seven. Elevation compounds this: UV intensity at 6,035 feet is roughly a quarter higher than at sea level, and we get more than 300 sunny days a year to apply it.
What fails first
Almost never the slats. In order of frequency:
- Lift cords abrade where they pass through route holes.
- Tilt gears strip, usually from being forced past their stop.
- Cordless spring mechanisms lose tension, so the blind creeps down.
- Slats crease or snap, usually from a pet, a child, or a slamming window.
The useful implication is that most 'broken' blinds are repairable. A restring or a new tilt mechanism costs a fraction of a replacement blind, and on a custom-sized window that is well worth checking before you replace.
How to actually extend their life
Dust regularly. Grit is abrasive. Dust that sits in route holes wears cords faster, and dust bonded to a slat by kitchen grease becomes much harder to remove later.
Do not force the tilt. When the louvers stop rotating, they have reached their stop. Pushing further is the single most common way a tilt gear dies.
Raise and lower evenly. Pulling a cordless blind up by one corner racks the mechanism. Lift from the centre of the bottom rail.
Match the material to the room. Real wood in a bathroom will fail early no matter how carefully you treat it. Half of longevity is specifying correctly in the first place.
Consider UV-stable materials on hard exposures. Solution-dyed fabrics and quality composite cost slightly more and last substantially longer where the sun is severe.
When to replace rather than repair
Replace when the finish has visibly degraded (yellowed vinyl, faded fabric, bowed wood louvers) because none of that is fixable. Replace when multiple mechanisms are failing at once, which usually means the blind has simply reached the end. And replace when the blind no longer suits the window's job, which happens more often than people expect after a remodel or a change in how a room is used.
Repair when the slats and finish are sound and one mechanism has failed. That is most of the cases we get asked about.
Common questions
- How often should blinds be replaced?
- There is no fixed schedule, replace when the finish degrades or multiple mechanisms fail. Practically, most households replace blinds every 10–15 years, and sooner on hard sun exposures.
- Can broken blinds be repaired?
- Usually. Lift cords, tilt mechanisms and individual slats are all replaceable, and a restring costs far less than a new blind. Send a photo and we will tell you honestly whether it is worth doing.
- Do more expensive blinds last longer?
- Generally yes, and the difference is in components you cannot see at the point of sale: slat gauge, headrail construction and UV stabilisation of the finish. Those are exactly the things bargain products economise on, and exactly what determines year-ten appearance.
