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Commercial Cleaning Service

The Art of Clean

Commercial Cleaning Services

Blue Sky is a veteran-owned, family business that provides commercial cleaning services throughout Delaware.

In 2000, Valerie & Gary Ventresca launched a new type of cleaning service. Blue Sky uses the most effective products, equipment tech, and precise time management tools. Previously, Gary was an educator & cleaning project leader at his family’s janitorial supply company. Val’s skills were polished by years of managing large multi-tenant properties for local developers.


Built on Trust and Customer Satisfaction

Unlike all-purpose cleaning services, we specialize in business cleaning. Often, commercial cleaning companies are required to enter facilities after-hours, operate security systems, and work within strict timelines. Our customers trust us and we deliver immaculate results. We aren’t happy until you are happy.

◇ Licensed by the State of Delaware

◇ Insured against Accidental Property Damage

◇ Our team is protected by Worker’s Compensation Insurance


Commercial Cleaning

Some clients we serve every day, while others prefer periodic intensive cleaning. We are licensed, insured & dependable.



Commercial Cleaning

Our skilled operators use powerful hot/cold pressure washers to deliver impressively clean, amazingly fast results.



The Art of Clean

Carpet cleaning is our specialty. We can restore and protect your low pile, unpadded, heat sensitive carpets.



The Art of Clean

We remove limescale, soap scum, tree sap, bird droppings and minor glass etching caused by acidic rain. Cold weather is no problem!



Commercial Cleaning

Whether you want one room refinished or your entire complex, we will strip & refinish your tile floors to like-new condition!



Construction Clean Up

When you are ready, our construction cleaning services deliver a great impression. See Pettinaro’s testimonial below.


Commercial Cleaning Services for Wilmington, Dover, and Lewes. 



One call for daily, periodic or special project cleaning.


Attention to detail, delivered to your specifications.


We operate efficiently saving us both time & money.


We arrive on-time, everytime.


We use the greenest products that we possibly can.


We mandate continuing education and workplace safety.

It’s all about you, you, you.

Our commercial client list includes; banks, builders, real estate agents, warehouses, dealerships, churches, offices, gyms, and hotels. Some we serve every day while others want a periodic, deep cleaning.

Property managers and realtor clients may want construction cleaning services, or move-in or move-out cleaning; they call us. Our commercial cleaners work around your schedule and your budget.

Whether you need construction cleaning, window washing, daily, weekly or one-time project cleaning, we’ve got you covered.

Happy Clients.

“I just wanted to take a minute to thank you personally for the outstanding service that you have provided Delaware Veterans Post #1. When I originally contacted you, we were in the beginning of the Covid pandemic as well as attempting to move our cleaning services from internal to external. Your company not only positioned us to re-open from our shutdown, but we have employed your services to maintain our main areas of operation daily. Our facility has never looked better and I wanted to let you know that I would recommend your company to future customers.”

Mark Schilling – Commander, Delaware Veterans Inc.

“Just want to let you know what an amazing job your staff is doing cleaning our office.  I would complain if I was not happy with the work, so it is only fair that I share with you how happy our staff has been. The cleaning is consistently good!  Desk are cleaned, floors under desks are cleaned, common areas are wiped and cleaned, dishwasher is run, coffee service is clean, and most importantly bathrooms are clean.  In general, our office is clean! Just want to thank you and your staff for continuing to do amazing job and to let you know that your work is appreciated and does not go unnoticed.

Carol Boone – Estate Planning Paralegal

“We called Blue Sky and asked if they could come by asap to refinish our tile floors for an upcoming visit from the company’s new President & CEO. They responded immediately and the floors looked like glass.”

Cabellas Bass Pro Shop

Tracy Albright – Store Mgr Christiana Mall

“I would like you to pass on our sincere thanks to you and your staff for the wonderful job you have done for us this year.  Knowing that our branches are being cared for by people who are dedicated and loyal, means a great deal to us.”

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Lynn E. Nickle – Artisans’ Bank

“We have been using BlueSky for construction cleaning of multiple projects for at least the past five years. They always perform an excellent job for our Tenants. The cleaning crew is easy to work with, exceptionally polite and on time. Their response to additional work is always immediate which has been helpful to our deadlines.”

Yiannis Koutsoukos – Pettinaro

“In a word – Sparkling!  Thanks very much to Gary and the entire crew at Blue Sky for your continued service at our office in Wilmington.  The time and care you took in cleaning our windows / floors and everything else is beyond our expectations.  They look fantastic!”

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Matt Moran, CPO
Lawall Prosthetics and Orthotics

“To prepare for the City of Wilmington’s 33rd annual Clifford Brown Jazz Festival, we needed a cleaning company to clean and disinfect our facility each day and Blue Sky came through for us, exceeding our expectations. The staff was professional, thorough, and very accommodating! Many thanks to Gary, Beth, and all the staff at Blue Sky!”

Paul Janocha, Producer/Engineer

“We called Blue Sky following a construction project at our church and asked them to clean and finish the new tile floor. The crew was prompt and efficient and did a fantastic job. The floor was sparkling like glass when they were done. Professional and accommodating. Excellent service. Highly recommended.”

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Ellen Casson – Hanover Presbyterian Church

How can we help?

(302) 584-5800

Wilmington, Delaware

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