Trusted Cleaners in Wilmington, DE Since 1984
Professional janitorial services for offices, medical facilities, schools, and industrial institutions — dependable, detail-oriented, and responsive.
About us
Trusted Janitorial Services in Wilmington, DE for Over 40 Years
Founded in 1984 by Janet Killian-Welte, Gemini Janitorial Services has built a reputation for dependable commercial cleaning in Wilmington, DE and the Greater Delaware Valley. Our team works with businesses of all sizes, including financial institutions, medical facilities, schools, office buildings, and industrial organizations.
Our Services
Professional Cleaning Services in Wilmington, DE
Commercial Cleaning
Reliable daily and weekly cleaning for offices, schools, banks, and medical facilities.
Post-Construction Clean-Up
pecialized construction site cleanup to keep projects move-in ready.
Why Choose Gemini
Why Businesses Across Wilmington Choose Gemini Janitorial
- Over 40 years of local experience
- Licensed, insured, and trusted by Delaware businesses
- Personalized cleaning plans tailored to your facility
- Outstanding customer service and attention to detail
Testimonials
What Our Clients Say
Blogs
Cleaning Tips & Resources
5 Questions to Ask a Janitorial Cleaning Company
Make sure you choose the right cleaning partner by asking these key questions before hiring.
3 Reasons You Need to Keep Your Office Phones Clean
Benefits of Professional Construction Clean-Up
FAQ’s
Frequently Asked Questions
What types of facilities do you clean?
We provide professional janitorial services for a wide range of facilities, including offices, medical centers, schools, banks, industrial institutions, and post-construction sites. With over 40 years of experience, our team is trusted by businesses of all sizes across Wilmington, DE and the Greater Delaware Valley.
Do you offer post-construction clean-up?
Yes, we specialize in professional construction site clean-up to ensure your new or renovated space is safe, spotless, and move-in ready. Our team removes dust, debris, and leftover materials, while thoroughly cleaning floors, windows, restrooms, and common areas. Whether it’s a small remodel or a large commercial project, Gemini Janitorial Services delivers detailed post-construction cleaning in Wilmington, DE and the surrounding areas.
How can I get a quote?
Getting a quote is simple. Just schedule a free consultation through our website or give us a call at (302) 654-5310. We’ll discuss your cleaning needs and provide a personalized plan tailored to your facility.
Service Area
Proudly Serving Wilmington, DE & the Greater Delaware Valley
Gemini Janitorial Services provides professional cleaning throughout Wilmington, New Castle County, Newark, Bear, and surrounding Delaware communities.