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  • On-Site
    Manager

  • Gated Facility with
    Keypad Access

  • Many Storage
    Spaces & Sizes

  • Easy US-2
    Access

  • RV & Boat
    Parking

  • Video
    Cameras

  • Boxes and Moving
    Supplies

  • Extended
    Access Hours

  • U-Haul
    Dealer

SMALL

Starting At
$62
SEE UNITS

MEDIUM

Starting At
$155
SEE UNITS

LARGE

Starting At
$196
SEE UNITS

ABOUT US

At Mountainside Storage we have a solution for reorganizing your life, without having to part with the things you want to keep forever. Our affordable self-storage facility in Sultan, WA offers customers like you simple and convenient storage options you will feel great about.

Unlike other self storage facilities, at Mountainside Storage you'll have the peace of mind of being able to access your items at any time. Whether you're looking to store a few small items or an entire household, Mountainside Storage offers many different storage units to choose from, and our flexible lease agreement gives you the freedom to only stay as long as you want to.

WE ARE NOW
OFFERING ON-SITE
U-HAUL RENTAL TRUCKS!

WHAT OUR CUSTOMERS SAY ABOUT US

Tenisha Gienger 3 Months Ago

First ever looking here. I was very happy with the service. Quick professional advice. Great walk through the units to find the perfect fit. I will sh...

First ever looking here. I was very happy with the service. Quick professional advice. Great walk through the units to find the perfect fit. I will share my experience.

Kasie Moody 5 Months Ago

Friendly caring staff, the property is always in nice condition! I absolutely like that the property is gated and I like the monthly insurance fee giv...

Friendly caring staff, the property is always in nice condition! I absolutely like that the property is gated and I like the monthly insurance fee gives me peace of mind that my items are safe...

David Potter 5 Months Ago

Carrie Brave 6 Months Ago

Rebecca Jimenez 11 Months Ago

Love the staff!

erica Johnson 11 Months Ago

Nice

Amber Hazel

Most amazing facility! The managers are so helpful and knowledgeable! I am always greeted with a smile and a cup of coffee whenever I stop in to the o...

Most amazing facility! The managers are so helpful and knowledgeable! I am always greeted with a smile and a cup of coffee whenever I stop in to the office! I would always recommend this facility!

Anthony Vega

Super friendly and cautious staff!

Kim Jimenez

The office personnel are professional and knowledgable. The until are well maintained. I highly recommend this place for your storage needs

Cameron Boman

Keith Wiggins

Anthony Manzanares

Paul Anderle

Friendly staff and well kept up.

Rhonda Perecz

Lexi is wonderful.She is very helpful and always answer any questions I have.I thank you for being a good friendly facility.I would recommend you to ...

Lexi is wonderful.She is very helpful and always answer any questions I have.I thank you for being a good friendly facility.I would recommend you to anyone that needs a safe secure storage for their belongings.

Lexie Manzanares

Bruce Anderson

ThomasLena Jay

Super sweet attendants!

20 Total Reviews
  • FAQs
  • STORAGE TIPS
  • CONTACT

HAVE QUESTIONS?

View our FAQs page for answers to all our frequently asked questions.

FAQs

NEW TO STORAGE?

View our Storage Tips page for ways to get the most out of your unit.

STORAGE TIPS

CONTACT US!

Want more information? Visit our contact page to send us a message.

CONTACT

WHERE WE’RE LOCATED

FACILITY ADDRESS:

33329 US-2
Sultan, WA 98294

PHONE NUMBER:

(360) 799-3801

OFFICE HOURS:

Daily: 9am - 5pm

GATE HOURS:

Daily: 7am – 10pm