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.

Brick and stone are durable, low-maintenance materials for siding and walls that offer excellent insulation, aesthetic appeal, and can increase property value.

The lifespan of vertical siding depends on the type of material used and whether it’s properly maintained. For instance, vinyl siding can last between 20 and 30 years, while fiber cement siding can last up to 50 years. Remember that the type you choose will depend on how much maintenance it will require to prolong its longevity. 

This is a tricky answer because how fast you work, how large your team is, and what type of siding you install will all determine your total time. One person placing bricks around an entire house can take weeks, but a team of 10 could complete the job in just a few days. Installing siding is a job that’s best done by a pro, as they are experienced and will perform solid work. A rough guideline for DIYers is to budget 15 minutes per square foot of siding.