Property Maintenance & Concierge · Westchester County & Yonkers

Built Right.
Every
Time.

Construction · Facilities · Maintenance · Concierge

One company for everything your property needs — from full renovations to recurring upkeep and single-point concierge service. Serving homeowners, landlords, condos and HOAs, churches, schools, and commercial properties across Westchester County and the City of Yonkers.

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35+

Years of Experience

500+

Properties Served

100%

Licensed & Insured

5★

Client Rating

What We Do

One Company. Four Disciplines.

Marcello personally oversees every property under his care — bringing the same standard to a full renovation as to a routine service call. Whatever the property needs, it stays under one licensed and insured roof.

Construction

Renovations and expert finish work done start to finish.

Custom carpentry, built-ins & framing
Kitchen / bathroom full renovations
Plastering, painting & flooring
Concrete & tile work

Facilities

Keeping buildings running for commercial and institutional owners.

Preventative maintenance & on-call repairs
Mechanical & systems upkeep
Commercial, residential & institutional spaces
Unit turnovers & make-readies

Property Maintenance

Recurring upkeep that keeps a property in top condition, inside and out.

Scheduled maintenance visits
Seasonal & grounds work
Handyman & punch-list repairs
Rental turnovers

Property Concierge

One call for everything — we coordinate the rest so you don't have to.

Single point of contact
Vendor coordination & oversight
Home-watch for seasonal residents
Service plans & retainers

Who We Serve

Built for Every Property.

From a single family home to a portfolio of buildings, MNO Contracting is the one number to call for skilled, accountable property care.

Homeowners & Higher-End Homes

Renovations, upkeep, and white-glove concierge care for your home.

Landlords & Rental Owners

Fast repairs, turnovers, and reliable maintenance across your units.

Condos & HOAs

Common-area upkeep and coordinated maintenance boards can count on.

Churches & Schools

Careful, respectful facilities work for community institutions.

Commercial

Build-outs, repairs, and ongoing facilities support for your business.

Who We Are

One Company.
Every Property Need.

Marcello built MNO Contracting on one principle: do the job right, treat every client like a neighbor, and never cut corners.

What began as hands-on contracting has grown into full-service property care — construction, facilities, maintenance, and concierge coordination under one licensed and insured roof. Whether you own a single home or manage a portfolio, you get one accountable point of contact for whatever your property needs, across Westchester County and the City of Yonkers.

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Fully Licensed & Insured

Peace of mind on every job. We carry full liability and workers' compensation insurance.

One Point of Contact

Whatever the property needs, you call one number. Marcello coordinates the rest.

Transparent Pricing

Clear estimates and straightforward service plans with no hidden fees or surprises.

Workmanship Warranty

We stand behind our work with a 1-year workmanship warranty on completed projects.

Meet the Founder

Marcello Osso

Founder & Lead Contractor

Marcello Osso brings more than 35 years of hands-on experience in construction, carpentry, and facilities management to every property MNO Contracting serves. Born and raised in the construction industry through his work in his family business, Marcello has always had a passion for this field. He currently directs facilities for a Westchester church and school, previously supervised building operations and maintenance at the college level, and got his start running his own construction company, giving him a rare command of everything from finish carpentry to electrical, plumbing, HVAC, and code compliance. After receiving a master’s degree in Business, he founded MNO Contracting to bring that same standard of reliable, done-right work to homeowners, landlords, and property managers across Westchester County and Yonkers.

How It Works

Our Process

Marcello keeps every engagement straightforward — whether it's a one-time project or ongoing care, you'll always know what's happening, what it costs, and when it's done.