Schedule services on a nightly, weekly or monthly basis.

All friendly and efficient staff members are background-checked and trained.

commercial janitorial services

COVERT Cleaning has been providing commercial janitorial services to south-central Montana businesses since 2003.

(406) 855-4539
Expect the same amazing results after each and every visit.
We're licensed, insured and only use green-sealed certified products.

what we do.

COVERT Cleaning, Inc. provides south-central Montana with professional, commercial janitorial services.
COVERT Cleaning takes care of all your cleaning needs. We provide janitorial services for all business schedules, customizing to fit your needs. Whether nightly, weekly or monthly, we provide the frequency our clients want for their cleaning.
COVERT Cleaning will use the newest cleaning techniques and equipment to keep your business clean. We provide Green Seal Certified products, as requested, to keep your business Green. We maintain updated SDS sheets in all accounts in order to keep your building GHS compliant with government standards for safety.
COVERT Cleaning partners with other cleaning professionals to provide you with the best service. Our professional partners include; disaster restoration teams, carpet cleaners, hard floor cleaning technicians and window cleaners.
(406) 855-4539

servicing a variety of businesses

in the billings and laurel areas...

Financial Institutions

Government Facilities

Industrial Buildings

Medical Offices

Small Businesses

Retail Settings

a bit more on how we do it.

COVERT Cleaning strives to deliver quality cleaning services by taking the time on every job to maintain detailed cleanliness.

We pride ourselves on our cleaning excellence. Our company and employees display immense trustworthiness and uphold an awareness of confidentiality. We TEAM clean all buildings for maximum security and safety.

COVERT Cleaning will provide you with notifications from our crew when you are low on the items you provide through your preferred vendor (paper towels, toilet paper, trash liners, etc.).

We can also partner with your provider to ensure they are aware of your needs. COVERT Cleaning works with all local vendors so you can choose who suits your needs best.

We provide our clients with SAME DAY response time for taking care of any concerns with their cleaning. Communication is a big priority so we can take care of your needs.

We are available to you every day through phone or email. Our 24 hour answering service can provide you with immediate contact to a team member that can assist you.

COVERT electronically bills our clients each month. You have the convenience to pay with the method that suits your business best – whether electronic or mailed, we will set up the program that meets your business needs best.

(406) 855-4539

shared kudos.

  • "Highly recommended COVERT Cleaning, our shop is always dazzling!"

    Jennifer M., Laurel
  • "8 years of service and they've never let us down."

    Rodger S., Billings
  • "Walking into a clean office makes our staff so much more productive. "

    - Tina M., Billings
  • "Clients are always commenting on how professional-looking my office is."

    Traci R., Billings
  • "Reliable. Trustworthy. This is how cleaning businesses should be run."

    Greg T., Laurel
  • "COVERT Cleaning is a time-saver for our small practice. Great staff!"

    Brian K., Billings

who we are.

COVERT Cleaning has been in operation since 2003 with founders and owners Mardie Spalinger and Renee Studiner.

We are recognized as a SBA certified women-owned small business.

As owners we have realized the value of being “hands on” and continue to work with crews and building inspections.

COVERT Cleaning’s professional affiliations include the Billings Chamber of Commerce and the Laurel Chamber of Commerce. We are proud of the achievements and awards our company has worked hard to be recognized for over the years. These consist of:

  • The Freedom Award

    The Freedom Award, in recognition of exemplary support of National Guard and Reserve employees – COVERT employs military veterans active and retired.
  • Laurel's Best of Business

    2016, 2017, 2018
    Voted Laurel’s best cleaners 3 years in a row – we are Laurel’s largest commercial cleaning company.
  • Registered

    Registered Construction Contractors by the Montana Department of Labor and Industries – allows us to provide services during and post construction.
  • Registered

    Registered State of Montana Acquisition and Contracting System (eMACS)
  • Certified

    Registered US Government’s System for Award Management (SAM) – registered as a WOSB (woman owned small business) and certified to perform work on government
  • Goldman Sachs 10,000

    Selected and completed Goldman Sachs 10,000 Small Business program at Babson College, Boston MA
  • 56Strong

    Participant in Montana 56Strong Women’s Mentorship program
  • Recognition

    Career Guidance Center/COR Industries, recognition of exceptional service to individuals with disabilities – we have partnered with COR to provide positions for workers.

    (406) 855-4539

    who we really are.

    Our employees are our most valuable resource and our retention rate is excellent! We have many crew members with over 5 and even 10 years of service! COVERT Cleaning provides ongoing training for all our employees in cleaning techniques, equipment and safety.

    COVERT Cleaning attends the ISSA Trade Shows and product training workshops so we can learn and purchase from the leading companies in equipment and chemicals.

    All of our staff receives extensive training at hiring and we have ongoing continuing education programs as we work to find newer and better ways to clean! COVERT has safety workshops with our staff on chemical and equipment usage to ensure safety in the workplace.

    we're hiring!

    COVERT Cleaning, Inc., is always looking for hardworking, dedicated and fun employees. Flexible hours and competitive pay.

    proudly sponsoring...

    • Make-A-Wish Foundation of Montana
    • St. Jude Children’s Hospital
    • Graduation Matters
    • American Legion Baseball
    • Little League Baseball
    • The Laurel Exchange Club
    • Big Sky Senior Services
    • Laurel High School Boosters
    • Laurel High School Community Scholarship Fund
    • Laurel Urban and Revitalization Association

    Contact Us


    11 Wyoming Ave
    Laurel, MT 59044


    1925 Grand Ave
    Billings, MT 59102

    (406) 855-4539
    Copyright © COVERT Cleaning, Inc.
    All Rights Reserved