Self-storage units have become very popular in recent years. Many people find themselves in need of more storage space than their own homes and garages can provide. Storage unit rental agents offer lessees a number of different options, including what is known as climate controlled storage. Climate controlled storage may cost a little more than regular storage options, but there are some definite advantages to consider.

It is important to note that the definition of climate controlled storage may vary significantly among storage unit companies. In general, climate controlled storage units should not fall below freezing in the winter or rise above 90°F (32°C) in the summer. Renters should always ask for a rental agency's specific definition of climate controlled storage before signing any agreements.

One major advantage of climate controlled storage is protection from the elements. Rain and snow cannot penetrate the roof, and the units are usually built above flood level. Many climate controlled storage units are located inside a finished building, unlike regular storage units accessible to the general public. Outside dirt and dust are less likely to be transferred indoors, which is good news for fragile antiques and sensitive musical instruments.

Another advantage of climate controlled storage units is atmospheric regulation. Items stored in these units should not face extremes in air temperatures or humidity. Many wood-based furniture pieces, musical instruments and antiques could crack or split from a constant cycle of freezing and thawing. Many storage unit facilities use indirect heating and cooling systems to maintain air temperature, rather than individual heaters or air conditioners in each unit.

Because many climate controlled storage units are located indoors, there is less chance of outside vermin and pests infiltrating them. Damaging insects such as termites are kept at bay through concrete and metal construction. Unregulated units may become susceptible to outdoor pests such as bees, wasps or mice if not inspected regularly.

Many renters of a climate controlled storage unit believe that peace of mind is also an advantage. Precious family heirlooms, antiques and other valuable items may or may not survive long-term storage in regular storage units. With a climate controlled storage unit, there is much less chance of discovering significant damage to weather-sensitive items. The value of antiques can diminish quickly based on 'storage issues', for instance. Renting a climate controlled storage unit may be worth the extra expense if you plan on storing your most prized possessions for the next generation.