
CLEANING SERVICES
Gemini Janitorial Services was founded in 1984 by Janet Killian-Welte. At that time, she decided to focus on providing commercial... READ MORE

POST CONSTRUCTION CLEAN-UP
You would not expect another office to settle for second rate commercial cleaning services if they had a choice, so why don't you... READ MORE

CONSULTATION SCHEDULING
Gemini prefers to work with new customers on a personal level and visit their site(s) before providing a cost of service quote. Please use the form below... READ MORE
"We CAN WORK FOR YOU. WE SERVICE any commercial BUSINESS,
including financial institutions, medical facilities, schools, office buildings and industrial institutions."
- Janet Killian-Welte,
President

Commercial Cleaning
ServicesSince 1984, Gemini Janitorial Services has been cleaning professional offices in the Greater Delaware Valley.
Schedule A Consultation
ServicesSince 1984, Gemini Janitorial Services has been cleaning professional offices in the Greater Delaware Valley.
CLEANING SERVICES WILMINGTON DE
Choosing the best cleaning services Wilmington DE has to offer will be one of the most important decisions you will make.
Benefits of Using a Professional Company for Construction Clean Up
For any construction job, the site needs to be prepped. This process can range from the removal of plaster, and layers of paint, to and…
Read moreHow a Commercial Cleaning Company Can Help Keep You Healthy
It can be difficult to make decisions regarding cleaning your place of work. While some business owners prefer to maintain their cleaning services in-house, others…
Read moreFacts You Should Know About Shared Spaces
As we begin to move back into a world where working from home is less common and going to the office is the norm for…
Read more
We proudly support:

Ministry of Caring
www.ministryofcaring.org
Janet Killian, founder of Gemini Janitorial Services, proudly serves as President of the Guild for the Ministry of Caring. The Ministry of Caring is a community-based nonprofit organization that provides a network of social, health and support services for those living in poverty, including the homeless and working poor, in the greater Wilmington, Delaware area.

Delaware Humane Association
delawarehumane.org
Gemini Janitorial Services is a proud In Kind sponsor of Delaware Humane Association.