Best Self Storage Units in Boulder, Colorado of 2023

In order to pick the top 12 storage units companies in Boulder, we looked at all 114 facilities in the area, including an in-depth review of each company’s amenities, features, and customer reviews.

Our Selection Criteria

Our goal is to connect people with the best local storage facilities. We analyzed every single storage facility in the area and rated them based on 30 different variables to pick the best storage unit facilities in Boulder.

  • shape-1 114
    Facilities Reviewed
  • shape-1 65
    Facilities Curated
  • shape-1 12
    Top Picks
  • 1. Customer Service

    A record of outstanding customer reviews and service.

  • 2. Amenities

    Offers the most important features popular with customers.

  • 3. Location

    Multiple nearby facilities for maximum convenience.

  • 4. Professionalism

    A reputation of honest and reliable business practices.

The 12 Best Storage Facilities in Boulder

Hide Map

A-Plus Self Storage

425 Quebec Avenue Longmont, CO 80501

A-Plus Self Storage is a family-owned business that has been operating in the area for over 20 years. It's located just off Highway 287 on the south side of Longmont. The facility is gated, with keypad access for customers and drive-up access to most units, and the lights and cameras help keep everything secure. There is a large selection of units, including indoor, outdoor and covered varieties, as well as heated units for sensitive goods. Month-to-month rental contracts are available and bills can be paid online via the company's website. A-Plus Self Storage offers military and senior discounts, as well as a further reduction in fees when paying in advance. ...Read More

All Secure Self Storage LLC

12045 Moline Street Henderson, CO 80640

All Secure Self Storage is a midsize facility located approximately 13 miles north of Boulder, right next to Highway 85 in Henderson, Colorado. This facility offers the most popular sizes of units, from 5'x5' to 10'x20', and it specializes in providing temperature-controlled units that are insulated and accessed from interior hallways. It's a gated facility with secure keypad entry for customers, 24/7 surveillance, on-site managers and individual alarms on each unit. Most units are on the ground floor, which makes it much easier to move in and out. Reservations and bill payments can be made online via the website and there are discounts for new customers. ...Read More

Arapahoe Self Storage and AAA Store-N-Lock

6389 Arapahoe Road Boulder, CO 80303

Arapahoe Self Storage, Arapahoe RV Storage, and AAA Store-N-Lock has been in business for almost 50 years and provides some of the largest storage units in the area. It's located on the east side of Boulder with easy access to major roadways and public transport, and there's a U-Haul facility located next door. Storage units range in size from 4'x7.5' up to 20'x22', and covered and uncovered storage for boats, RVs, and other large vehicles is available in sizes up to 12'x40'. Professional locks are sold on site at reasonable prices, the Covered RV facility is gated for extra security, and they have 24-hour surveillance to help deter crime. Customers can access their units 24/7, and the office is open from 9 am to 5 pm on weekdays (except on Fridays, when they close at 4:30 pm). They don't have climate-controlled units, but most of their units are on the ground floor with drive-up access through their own exterior loading door. There is a $10 administration fee on all contracts, and short-term rentals are welcome. Most of their customers have been with them for years. ...Read More

Boulder Self Storage

6439 Arapahoe Road Boulder, CO 80303

Boulder Self Storage is a midsize facility located on the east side of Boulder in an industrial area. It's on Arapahoe Road, which provides convenient east-west access for people coming from downtown Boulder and elsewhere. The facility is secured with an electronic gate, providing access from 5 am to 10 pm every day of the week. Video surveillance throughout property offers added security and resident managers help simplify the moving process. The facility has wide driveways with plenty of room for trucks, and the units have high ceilings that make good use of the available space. Drive-up access is available for most units, and there are options for storing boats and RVs. New customers can take advantage of the free rental truck offer with furniture dolly and moving pads. ...Read More


3993 S. Valley Drive, Unit D Longmont, CO 80504

Clima-Stor is a self-storage facility that specializes in climate-controlled units that keep delicate items safe and in good condition. It's located next to Interstate 25 and Highway 66 in east Longmont. The facility itself is modern and uses state-of-the-art technology in security and climate control, and all of its units are accessed via well-lit and secure buildings. Customers can access the facility from 6 am to 10 pm, including weekends, and there are dollies and flatbed carts provided to speed up the process of loading and unloading. Month-to-month leases are available, and the online system allows customers to reserve a unit and pay bills at their convenience. ...Read More

Dillon Road Storage

10051 Dillon Road Louisville, CO 80020

Dillon Road Storage is a large, modern facility located approximately midway between Boulder and Broomfield in the town of Louisville, Colorado. It's just off the Northwest Parkway and minutes from the Denver Boulder Turnpike for convenient travel to the east and west. All units are on the ground floor and offer drive-up access, from the smallest at 5'x5' up to the largest at 10'x30', and there are climate-controlled options for long-term and delicate storage. Units are equipped with individual alarms, and the property is gated with keypad access for customers, which helps raise the level of security. This facility is also a neighborhood dealer for U-Haul, and boxes and packing supplies are also available on site. ...Read More

Elite Storage

1260 E. South Boulder Road Lafayette, CO 80026

Elite Storage operates this large, newly-constructed facility on the east side of Lafayette. It's just over 1 mile to the Northwest Parkway, and there are also major roadways nearby for easy access to Boulder. This facility is gated and has 24/7 video security that covers hundreds of units. There are just over 500 temperature-controlled storage units available, as well as 50 drive-up units and the ability to accommodate 18-wheeler pull through. Carts and dollies are available for customers to use on the premises, and the facility offers truck and van rentals. Elite Storage was awarded the Best of HomeGuide 2019 award for storage in the Denver area. ...Read More

Empire Storage of Louisville LLC

1391 Empire Road Louisville, CO 80027

Empire Storage of Louisville is located just off Courtesy Road near the shopping district of Louisville and approximately 8 miles from Boulder. It has one of the largest selections of storage units in the area, with sizes from 5'x5' up to 10'x30', as well as units with climate control and individual alarms. The property is under digital video surveillance and customers receive individual access codes to the security gate. Empire's website provides a more useful outline of the options and prices compared to most facilities in the area, including details on which units are on the ground floor and other important factors, and bills can also be paid online. There is an on-site U-Haul rental agency for customers who need a truck, as well as complimentary access to dollies and carts. ...Read More

Greenbox Self Storage

2424 Delgany Street Denver, CO 80216

Greenbox Self Storage provides standard and climate-controlled units in a convenient location of Denver, Colorado. It's just across the road from Coors Field and under a mile to Interstate 25. The on-site management team can accept deliveries to be placed and locked in a unit. Buildings are well-lit and secure, and the facility itself is gated. The electronic gate access makes it quicker and easier for customers to get in and out, and the security is improved with motion sensing lights and surveillance. Covered zones are available for loading and unloading. Storage units can be rented on a month-to-month basis and Greenbox has an online system for paying bills. ...Read More

Guardian Storage - Boulder

4635 Broadway Boulder, CO 80304

Guardian Storage is a midsize facility on Broadway at the northern tip of Boulder, Colorado. U-Haul of Boulder is located opposite, which is useful for anyone renting a truck for their storage needs. Customers can access their units from 7 am to 9 pm, including weekends, and drive-up access is available. The office is open until 4 pm on weekdays and 3 pm on Saturday, which provides customer service and sells moving and storage supplies. Guardian Storage can also accept deliveries for the customer if agreed upon beforehand, which is often used to keep holiday packages safe from theft. ...Read More

Storage Sense - Denver - Pecos

5999 Pecos Street Denver, CO 80221

Storage Senseis a large facility in north Denver that's right next to Interstate 76 and Pecos Junction Station, and approximately 4 miles from the central business district. Drive-up storage units are available in all sizes, including the largest at 8'x40'. Climate-controlled units in sizes up to 8'x20' are on the ground floor with access through loading doors. Indoor and covered storage for RVs, boats and vehicles of similar size is also available, which is often useful for travelers. There are no administration fees, and short-term rentals are welcome. ...Read More

Superior Self Storage

7542 W. Coal Creek Drive Superior, CO 80027

Superior Self Storage is a large facility located just off the turnpike between Boulder and Broomfield near Costco and Target. Automatic gate access to the facility is secured by a personal code for each customer. Access is available from 6 am to 10 pm every day, including Sunday, which provides more time than most facilities in the area. Residential and commercial storage spaces can be rented with no deposit and no ongoing contract, and bills can be paid online. Moving and packing supplies are available for purchase in the office. The on-site management staff can help answer questions and the facility has multiple layers of security to protect customers' belongings. ...Read More

The Cost of Self-Storage in Boulder, CO

Self-storage in Colorado tends to be fairly expensive compared to other areas in the United States, and storage in Boulder is even more expensive than the state average. A typical 10×10 unit costs around $113 a month in Colorado but goes for around $168 in Boulder. The national average is $95 a month.

This cost discrepancy is due in part to the generally high cost of living in Boulder. In particular, real estate tends to be more than three times higher than the national average, which makes it expensive to build and maintain storage facilities. In addition, Boulder is home to the main campus of the University of Colorado, which draws a large student population. Many students need off-site storage throughout the year, which makes units scarce and leads to higher prices.

The average cost of storage units in Boulder compared to state and national averages
Size of Storage Unit City Average State Average National Average
5×5 $87.82 $47 $41
5×10 $118.69 $67 $59
10×10 $167.54 $113 $95
10×15 $231.50 $151 $113
10×20 $226.38 $154 $133

What to Consider When Looking for Storage in Boulder, CO

Boulder is known for its easy access for skiing and other winter sports, but that also means that the climate can be fairly harsh. It receives about 71 inches of snow a year, which is about 40 inches more than the U.S. average, and the average winter low is around 19 degrees Fahrenheit. Summers can also get fairly hot, with the average high being around 88 degrees. This puts stored belongings in danger of warping and other damage caused by temperature changes, so climate-controlled storage units are a good choice for any valuable or delicate items.

The city also has a moderately high rate of property crime, with a score of 40.9 compared to the U.S. average of 35.4. Residents who are storing valuable or easily stolen items may want to consider more secure storage units, such as ones with individual door alarms and resident managers.

Helpful Tips for Moving to Boulder, CO

Boulder is known in part for its active lifestyle, and that’s reflected in its excellent pedestrian and bicycle options. Many neighborhoods are highly walkable, and the city has many interconnected bike and pedestrian paths. It also has an easy-to-use and extensive bus system. Even residents who commute by car typically only drive about 19 minutes each way, which is lower than the U.S. average of about 26 minutes.

Although Boulder has a slightly high property crime rate, the rate of violent crime is very low, and it’s generally considered to be a very safe area. Residents tend to be fairly affluent, and the economy is generally strong. This helps offset the high cost of living, although people moving to Boulder should be prepared for a very competitive housing market.