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The lifespan of siding ranges from 20 to over 100 years, depending heavily on the material, climate, quality of installation, and maintenance.

• Vinyl, Wood, and Aluminum: Typically last 20 to 40 years. Engineered wood may need replacement after just 20 years.

• Fiber Cement: Lasts around 50 years.

• Brick and Stone: These are the most durable, lasting for a century or more with proper care.

The longevity of any siding can be shortened if it's not properly maintained or if damage is not repaired promptly. Regular cleaning is vital. It's time for a replacement when you see widespread damage, signs of water intrusion, or a spike in energy costs.

Bleach can be an option if you want to kill mold and mildew clinging to your siding. However, you must water bleach down to the right concentration of a 1/2 cup of bleach per gallon of water to avoid damaging your siding. Bleach can also harm plants in your yard and isn’t safe to use near pets, so employ it with caution.

Local pressure washing services often offer non-bleach options that can powerfully remove mold and mildew.

You should restain or refinish your home's cedar siding every three to seven years to maintain its appearance and ensure maximum protection. The precise frequency depends on several factors, including your local climate, the siding's exposure to severe weather like direct sunlight, rain, and wind, the quality of the initial stain application, the type of stain used, and the condition of the wood.

Homeowners in harsh climates with high humidity and significant direct sunlight should plan on restaining every three years, while those in milder locations can wait up to seven years. For the longest-lasting protection in particularly harsh environments, consider using an opaque stain.

If you're looking for a lower-maintenance alternative, vinyl or aluminum siding are options to consider. Although their installation cost may be higher, they don't require as much upkeep over time, which can provide more value, especially in areas with excessive rainfall or high humidity.

While homeowners' insurance can include coverage for siding, general wear and tear of siding is not covered. If your siding is rotting—especially because you haven’t kept up with proper siding maintenance—replacement siding will likely not be covered by your homeowners' insurance policy. Instead, insurance generally covers siding repair or replacement if your siding has been damaged by extreme weather, vandalism, fire, or some kind of collision, like by a vehicle.