About Us
Park Slope Cleaning is an M/WBE-certified commercial cleaning company founded in Brooklyn, NY in 2021. We serve commercial clients across Brooklyn, Manhattan, and Miami, including Fortune 500 companies and institutions such as the United Nations. Green Seal and ISSA CIMS certifications back our work — both require documented quality systems and independently verified standards.
Elevate Your Work Environment
Every cleaning professional we deploy is a direct W-2 hire. No subcontractors enter your facility. This means each person has been hired, trained, vetted, and managed by us directly.
Furthermore, competitive wages and ongoing training in cleaning techniques, safety protocols, and eco-friendly product usage are standard for all staff. Additionally, daytime and around-the-clock scheduling is available for clients who need flexible coverage.
Our Story
Park Slope Cleaning started in 2021 in a Brooklyn apartment, with one conviction: office cleaning in New York was overdue for a company you could actually trust. Not a rotating cast of subcontractors. Not a different stranger in your suite every week. A real team, employed and accountable, that shows up and gets it right.
Five years later, that conviction is the whole company. We clean offices across Brooklyn, Manhattan, and Miami — and we still run it the same way we did from that apartment.
Built on a Different Model
Most commercial cleaning companies staff your account with subcontractors or day labor they’ve never met. We don’t, and we never have.
Every Park Slope Cleaning cleaner is a W-2 employee — background-checked, uniformed, trained, insured, and supervised by us. There are no agencies and no strangers between you and the people in your space. That single decision drives everything our clients notice: the same faces week to week, consistent standards, real accountability, and someone who actually answers when you call.
It costs us more to run this way. We think it’s the only way to be trusted with a financial-district floor, a healthcare suite, or a government office — so it’s non-negotiable.
No agencies. No strangers. Just a consistent, trusted team.
Who Trusts Us
We earned our reputation in some of the most demanding rooms in New York. Park Slope Cleaning is trusted by the United Nations and the New York City Council, along with corporate offices, law and finance firms, healthcare practices, and cultural institutions across our markets. Our work has been featured in AP News, TODAY, and Architectural Digest.
Today we maintain 150+ offices with the same team-first model we started with.
Certified, Verified, Accountable
We don’t ask you to take our word for it. Our standards are independently verified:
- Green Seal certified — independently verified, eco-friendly cleaning with EPA-approved products, so your team breathes easier and your building meets its sustainability goals.
- ISSA CIMS — documented, audited cleaning processes (the industry’s management standard), which is how we hold a consistent standard across dozens of buildings at once.
- M/WBE, WBENC & PANYNJ certified — a certified woman-owned business, helping clients meet corporate and government supplier-diversity requirements without adding a vendor.
- Fully insured with building-specific COIs — we issue Certificates of Insurance naming the managing agent or landlord, and meet Class A building requirements. See our certifications.
A Note From Our Founder
“I started Park Slope Cleaning because I believed New York’s offices deserved better than what the industry was offering — and because I wanted to build the kind of company people are proud to work for. Employing our cleaners directly, as W-2 staff, wasn’t a marketing decision. It’s the reason our clients stay, and the reason our team stays. We’re still a hands-on company. When you work with us, you’re working with people who answer for the result.”
— Diana Ciechorska, Founder & CEO
How Working With Us Works
- Schedule a walk-through — a free, 15-minute look at your space.
- Get your custom quote — written, fixed, and clear about what’s included.
- Pick your schedule — nightly, overnight, or whatever fits your building’s access windows.
- Relax & enjoy — a consistent team handles the rest.
Green Seal certification verifies that our cleaning products meet environmental standards for ingredient safety, biodegradability, and performance. ISSA CIMS certification covers quality management — training, service delivery, and client communication — all audited independently. In addition, we are fully licensed, insured, and bonded.
Instead of a one-size-fits-all contract, we build a service plan specific to your space, frequency, and operational requirements. Maintenance programs are customized to weekly, monthly, or quarterly schedules. Consequently, your facility stays consistently clean without disrupting your operations.
To schedule a walkthrough, contact us today. Park Slope Cleaning operates from offices in Brooklyn (575 4th Ave, 11215), Manhattan (48 Wall St, Suite 1100, 10005), and Miami (100 SE 2nd St, Suite 2000, 33131).
About Our Team
Park Slope Cleaning was founded by Diana Ciechorska, a New York native who identified a gap in the commercial cleaning industry. Specifically, there was no large, modern, technology-enabled company combining professional standards with genuine accountability. Consequently, she built Park Slope Cleaning around two core principles: W-2 employees only, and certified quality at every level.
M/WBE certification recognizes Park Slope Cleaning as a Minority and Women-owned Business Enterprise. For clients with supplier diversity requirements, we provide the documentation needed to support those programs. Many of our Fortune 500 clients require M/WBE vendors as part of their procurement policies.
Benefits of Working With Park Slope Cleaning
Our customizable commercial cleaning services include:
- Hard surface floor cleaning and care
- Janitorial services
- Post-construction clean-up
- Window washing
- Floor waxing and re-polishing
- Office cleaning
- Waste removal
- Daytime cleaning
- High Dusting
- Carpet cleaning and maintenance programs
- Kitchen/restroom cleaning and supply restocking
Maintenance Programs
Running a business is tiring work. To accommodate your schedule, we can set up a program to have your facility regularly cleaned, disinfected, and sanitized. We can come as frequently as you need – weekly, monthly, or quarterly. You name it.
