Our team possesses extensive experience in coordinating with developers, tenants, building management and city agencies. We are able to meet deadlines, creating quality spaces according to our clients’ specifications. Whether gutting and rebuilding an entire brownstone, modifying a condominium, or building a new restaurant, our team will pay strict attention to the details of each project. Our professionals value our clients’ time, and work diligently to deliver a product that exceeds expectations, both in appearance and functionality.


If you have simple home needs to be addressed, such as a faucet that drips, changing of light bulbs, problems with your entertainment center, or re-grouting of your bathroom tiles, M² has trained personnel available to resolve any issue. We strongly suggest you download the attached Home Check List and review the items within your home before retaining our services. Often you may not have realized your bathroom tiles need re grouting or that you have a drip underneath your sink.

Who We Are

Mark Sweeney Partner

Mark Sweeney moved to New York City in 1998. Since then he has been working in various aspects of the Commercial and Residential Real Estate industries.  Before forming M2 in partnership with Moustapha, Mark worked as a construction supervisor and Property Manager for Rose Associates.  In addition to that he has worked on LEED certified buildings from the ground up, as well as retro-fit assignments.  His experience with condo and co-op boards allows for valuable insight in navigating applications for board approval.  He has a keen understanding of building operations and construction /renovation budgets which can be an asset for clients when determining the viability of a project for purchase. Throughout his NY tenure, he has worked on several notable buildings.

Prior to coming to New York, Mark worked on real estate projects domestically in California and Oregon and internationally with exposure in Brazil, Canada, Israel, and Mexico.

Mark is conversational in Portuguese and Spanish.

Moustapha Diop Partner

Moustapha Diop moved to New York City in 2000 from Dakar, Senegal where he studied Construction Management with an emphasis on Electrical Systems. He worked as a manager on both residential and commercial buildings from the ground up. On all building projects, Moustapha oversaw day to day operations, responsible for budget and completion schedule.

Since being in NY and before M2 he has worked for electrical companies both full time and on a consultant basis. His background in Senegal and in US has offered him the ability to be fully engaged in all aspects of construction and renovation projects with particular strengths in design and problem solving.

Moustapha is fluent in English, French, and Wolof. 

Get a quote you can trust.

Contact M² We welcome calls and emails to schedule walkthroughs for quotes.

M² is a Licensed and fully insured NYC contractor. We offer a full appraisal, written breakdown and estimate for each project including time frame, logistics planning, scope of work and estimated cost.

Mark Sweeney Partner

(C) (917) 202-0061
(E) [email protected]

Moustapha Diop Partner

(C) ‭(646) 236-6052‬
(E) [email protected]