Climate-Controlled Storage Units in Marietta, GA

Metro Atlanta summers are relentless. From June through September, Marietta bakes under temperatures that regularly push past 90°F with humidity levels that make it feel even hotter. Inside a standard metal storage unit without climate control, those conditions intensify — temperatures can climb past 130°F on a July afternoon, creating an environment that warps wood, melts adhesives, corrodes electronics, and turns upholstered furniture into a breeding ground for mold and mildew.

Ark Self Storage on Cobb Parkway offers climate-controlled storage units in Marietta starting at just $64 per month — only $10 more than a standard unit. That is less than 50 cents a day for HVAC-regulated temperature and humidity protection that keeps your belongings safe year-round. No deposit, no contracts, and a price match guarantee.

Why Climate Control Matters in Metro Atlanta

Marietta sits in the northern arc of metro Atlanta, where the combination of Southern heat and Piedmont humidity creates one of the most challenging storage climates in the Southeast. Unlike coastal Georgia, where ocean breezes provide some overnight cooling, the Atlanta metro retains heat well into the evening. Standard storage units absorb that heat all day and release it slowly at night, creating daily condensation cycles that are devastating to stored belongings over time.

Climate-controlled units eliminate this problem by maintaining temperatures between 55°F and 85°F and actively reducing humidity. For anyone storing belongings for more than a few weeks — especially through a Marietta summer — climate control is the difference between finding your items in the same condition you left them and finding warped furniture, foggy electronics, and musty-smelling fabrics.

What to Store in a Climate-Controlled Unit

The simplest test: if replacing it would cost more than a year of climate-controlled storage, protect it. Here is what Marietta residents most commonly store in our HVAC-regulated units:

• Living room and bedroom sets — Couches, coffee tables, headboards, and nightstands made from real wood or veneer will swell, crack, or delaminate after just one Atlanta summer in an unregulated unit
• Computers, TVs, and gaming setups — Internal condensation from daily heat-cool cycles shorts circuit boards and fogs screens; damage is often invisible until you plug the device back in
• Mattresses and sectional sofas — These large fabric items act like sponges in humid air, absorbing enough moisture to develop mold colonies deep inside the padding where you cannot see or clean them
• Designer bags, jackets, and leather seating — Atlanta’s humidity causes leather to grow a white mildew film within weeks; once the grain is damaged, restoration is expensive and rarely perfect
• Family photo albums, yearbooks, and important paperwork — Heat accelerates chemical reactions in photo emulsion and printer ink, while humidity fuses pages together permanently
• Acoustic guitars, keyboards, and studio gear — Neck warping, key sticking, and speaker cone sagging are common results of storing instruments in unregulated Georgia heat
• Signed memorabilia, coin collections, and fine art — Anything with resale or sentimental value that cannot be repurchased deserves the protection of stable conditions
• Home staging inventory — Cobb County realtors and professional stagers need furniture and decor to arrive at the next listing in pristine, showroom-ready condition

Climate-Controlled Unit Sizes & Pricing

Our Marietta facility on Cobb Parkway offers climate-controlled units in three popular sizes:

Size	Best For	Monthly Rate
5 x 5	Boxes, seasonal items, instruments, small electronics	$64.00
5 x 10	Small bedroom — mattress, dresser, 10–15 boxes	$84.00
5 x 15	Large bedroom or small apartment — furniture, appliances, boxes	$104.00

Not sure which size you need? Try our free storage calculator for a personalized recommendation.

Standard vs. Climate-Controlled: The Real Cost Difference

One of the biggest advantages of our Marietta facility is how affordable the upgrade to climate control actually is:

Size	Standard Rate	Climate-Controlled Rate	Difference
5 x 5	$54.00	$64.00	+$10/mo
5 x 10	$74.00	$84.00	+$10/mo

At just $10 per month — about 33 cents a day — climate control is one of the most cost-effective ways to protect belongings that would cost hundreds or thousands of dollars to replace. Consider this: a single piece of warped furniture or a ruined set of electronics easily exceeds what you would spend on a full year of climate-controlled storage.

Storing a lawnmower, a set of golf clubs, or a stack of plastic storage totes? Standard is the smart call. But the moment your inventory includes a couch, a TV, a box of tax returns, or anything you would keep in an air-conditioned room at home, the $10 monthly upgrade removes all the risk.

Protecting Your Belongings in Storage

Climate control provides the foundation, but smart packing extends the protection even further:

• Wrap wood furniture in breathable cotton covers or moving blankets — never plastic, which traps moisture
• Place electronics on shelves or pallets rather than directly on the floor
• Store photographs and documents in sealed plastic bins with silica gel packets for extra moisture absorption
• Stand mattresses on their side and use a mattress bag to keep them clean
• Leave a small gap between items and the walls to allow air circulation

Frequently Asked Questions