
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.
Common Office Sanitation Problems and What You Can Do to Solve Them
Keeping office spaces clean is more challenging than you probably think. Sometimes rooms that appear quite clean are actually contaminated with bacteria, mold spores, and…
Read more5 Effective Tips to Keep Your Office Clean and Organized
It’s essential to clean desks and office surfaces thoroughly and frequently to get rid of germs. Keeping your office clean and organized is a great…
Read moreAuthor of a new children’s book
Janet is the author of the children's book "Howl of A Day". Will Carlos ever be a firehouse dog? After being teased and discouraged to…
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.