Testimonials

Birgit - Office Manager

Guaranteed Cleaning Services has been with us for a number of years. They are always committed to great service. The staff is very professional and friendly. The company has always addressed any issue we had right away. We recommend Guaranteed Cleaning Service, and hope they stay with us a very long time.

Adrienne - Procurement Officer

The staff at Valley Community Services Board has noticed a significant difference in the cleanliness of the facility since Guaranteed has taken over. Clients have also commented on the noticeable difference throughout the meeting and waiting rooms of VCSB. Guaranteed is willing to address any issue we put forth. Staff are efficient and courteous while performing their duties.

Sabah - Facilities & Programs

Guaranteed Cleaning Services has provided our schools with janitorial services since 2014 and we have always been satisfied with their performance. They do an excellent job and are always punctual, respond to emails immediately, and offer great rates.

Tara - Property Management Coordinator

You and your team never cease to amaze us!

BJ - Director of Operations

A few weeks after they started, we have noticed a considerable difference in the cleaning of our facility. Many of the detail cleaning items such as dusting, are now done on a regular basis and floors are now shiny. Furthermore, their account manager keeps regular inspection schedule behind nightly cleaning staff.

Jodi - Office Manager

Guaranteed Cleaning Services was crucial in maintaining a safe environment at Thompson Hospitality during COVID-19. Their recommendation to switch to day cleaning saved costs and supported our staff. Courteous and hardworking, their regular presence and responsive SWEPT app ensure top-notch service. We highly recommend them for their excellence.

David - Facilities Operations

Guaranteed Cleaning Services has been a fantastic partner for the past year, maintaining our four-story office building in Chantilly. Yuhannes and Roger ensured a smooth transition from our previous provider, addressing all concerns. Their team is diligent and professional, and our tenants regularly commend the cleanliness.
Highly recommended!

Amanda - Facility Manager

They have consistently provided exceptional cleaning for our medical and administrative facilities, exceeding our expectations. Their dedication, especially during the pandemic and a water remediation process, has been outstanding. We are confident and enthusiastic about their services and wouldn't consider any other company.

Jennifer - Lease Administrator

Guaranteed Cleaning Services handles cleaning for our Virginia properties. I highly recommend them. They are extremely responsive and promptly address any issues that arise efficiently.

Rosalind - Regional Manager

Since 2019, they have consistently delivered outstanding service. Their comprehensive business proposal efficiently addressed all our queries. We've seen a significant improvement in facility cleanliness, as have our clients. Their responsiveness to issues, along with their efficient and courteous staff, is commendable. We truly appreciate their commitment to customer satisfaction.

Mary - Office Manager

Provided an excellent staff and an outstanding service manager who ensures our satisfaction. They are always kind, courteous, and reachable. Their SWEPT app has streamlined our communication, saving us time. We highly recommend GCS for their professionalism, effective service, and top-notch staff.

Aubrey - Office Manager

We have partnered with GCS for the past year, and they have exceeded our expectations in quality, communication, and service. Their dedicated account manager, accessible via the Swept app, ensures prompt responses and effective issue management, like addressing a leaking roof late one evening. Their high level of service consistently maintains a clean environment for our customers. Highly recommended!