Mary Ellen Gallagher

Mary Ellen Gallagher

Licensed Real Estate Salesperson
About Mary Ellen
Driven by her smart, analytical approach and passion for the local community, Mary Ellen Gallagher delivers resounding success for buyers and sellers. She's a personable, caring, multimillion-dollar top producer with a straightforward manner. Extensive experience living throughout the tri-state area and as an expat in Switzerland has given Mary Ellen a deep understanding of, and appreciation for, the true meaning of home. In the business since 2007 and backed by the strength of the KMS Team at COMPASS, Mary Ellen is the realtor of choice for clients seeking skilled guidance in their next search or sale.

Mary Ellen credits her educational and professional background in finance for forming the core of her business-like approach to real estate. She is passionate about helping every client make their real estate dreams a reality. Buyers commend Mary Ellen's attentiveness, patience and encyclopedic understanding of the local real estate market. For sellers, she delivers a seamless path to success with her keen eye for staging and marketing. By consistently exceeding her clients' expectations, she's built a substantial repeat and referral business.

Mary Ellen's commitment to real estate, family and community is demonstrated by her extensive involvement in local nonprofit organizations. In her free time, she enjoys an active lifestyle taking in all that Fairfield County has to offer, including golfing, racket sports, skiing, hiking and boating on Long Island Sound.


17 Years of Real Estate Experience in Fairfield County
Joined KMS Team in 2010, with 3 years prior experience


Client Testimonials

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"Mary Ellen is very knowledgeable in Fairfield County real estate. We met at an open house and immediately connected. We are beyond fortunate to have worked with her. She’s honest, reliable and well connected in the community. She has a recommendation and contact person for everything you may need in this process and even those things you didn’t know you needed! She knows the market well and helped to navigate both the sale of our prior home and purchase of our new home. During difficult/stressful times we appreciate her dedication with the process and coordination with all the parties involved to create a smooth transaction and a pleasant experience. She coordinated between multiple realtors, lawyers and inspectors with ease and we really felt her support. She is the glue that made it all possible helping make the purchase of our dream home a reality. We highly recommend Mary Ellen!" - - Jane & Jack - Westport, CT

"As a first time home buyer, my family chose Mary Ellen to represent us in our search for a home in Westport, CT. Mary Ellen very promptly showed us a number of listings, and then helped us through a complicated short-sale transaction. Throughout the process, Mary Ellen was unfailingly professional, efficient, and honest. When we needed assistance with the inspection and legal matters, she provided resources that were perfect for our desire to be informed and get the deal done. We highly recommend her to others in search of an agent." - - Brennja09 - Westport, CT

"I have worked with many realtors over the years and without doubt Mary Ellen was by far the BEST realtor I have ever found. She is incredibly knowledgeable about the market, she is aggressive without being pushy, and she is the most responsive realtor I have met. She went above and beyond what was needed to sell my house including helping me deal with the lawyers, the contractors who did work on my house before I put it on the market. Mary Ellen was very honest about what I needed to do to sell my house quickly and she was absolutely correct. Her attitude and enthusiasm were fabulous and we had great personal chemistry which made the whole experience so enjoyable! There are not many realtors I can honestly say I would recommend but Mary Ellen Gallagher is one of a kind - I will never move again! But if anyone needs a realtor- look no further- Mary Ellen is the one!" - - Deb H. - Westport

"Having just completed a long and arduous journey, also known as selling a home in a depressed housing market in Fairfield County Connecticut, I can say without hesitation that my real estate agent made a tremendous difference in guiding me through the process! Mary Ellen Gallagher of KMS Partners in Westport, CT was extremely professional, trustworthy, available, and an absolute pleasure to deal with. Despite getting numerous emails/texts/phone calls from me over the four months we worked together, she was always upbeat and I could always rely on her opinions. Unquestionably and without reservations, I would recommend Mary Ellen to anyone thinking about buying or selling a home in Fairfield County!" - - Neil C. - Norwalk

"As first-time home buyers, Mary Ellen guided us through the entire process and patiently answered the many questions that we had. We were also moving to a new area that was not familiar to us, and Mary Ellen's expertise and insights on the local market proved to be invaluable. She was professional and sharp, listened to what we were looking for, and was easily accessible whenever we needed to reach her. She ultimately helped us to purchase the right house for us, and we would highly recommend her!" - - Mark R. - Westport

"Very pleased with Mary Ellen Gallagher & her team at KMS Partners in Westport, CT. She gave us invaluable advice on how to prepare the house for the most advantageous sale ability: professional photos throughout, complete internet presence, staging advice, marketing materials, references for inspectors who were well connected in the community to get the job done. It was a difficult market for a seller but Mary Ellen was soooo caring and passionate about selling our home. She always had our back throughout the negotiating process. She really was amazing. Everything went smoothly and I highly recommend Mary Ellen Gallagher." - - Dee S. - Westport

"Mary Ellen knows the market because she does her homework. Her professional background prior to real estate was in finance, so her analytics are extremely impressive and very helpful when making those stressful decisions that come with listing and selling your home. We were incredibly pleased with the sale price. However, equally important, was the sale process for our home, which was no doubt the smoothest process we have ever had selling a home, and we have Mary Ellen to thank for that. We would highly recommend her to anyone considering selling or buying a home. We are confident that you won’t be disappointed!" - - Kathryn S. - Westport

Team Statistics
850M+ Sales Volume (2019 - 2023)
$1.5B+ Team Volume since inception; 1,200+ clients

#1 Medium Team by Sales Volume in Connecticut (2021)*
#28 Medium Team by Sales Volume in the United States (2021)*
*WSJ's Real Trends - The Thousand (2020-2021)

Mary Ellen Gallagher’s Listings

a front view of a house with a yard
a front view of a house with a yard
an aerial view of a house with outdoor space
a view of a hallway with wooden floor and staircase
a kitchen with stainless steel appliances kitchen island granite countertop a stove a sink a refrigerator and chairs with wooden floor
a dining room with wooden floor a chandelier a wooden table and chairs
a kitchen with kitchen island granite countertop a sink stove and wooden floor
a living room with furniture and a fireplace
a view of a dining room with furniture window and wooden floor
a view of a dining room with furniture and wooden floor
a view of a kitchen from the hallway
a room with gym equipment and a rug
a view of a storage and utility room with washer and dryer
a bedroom with a bed and window
a living room with furniture and a large window with outer view
a view of a walk in closet
a spacious bedroom with a bed and wooden floor
a view of a livingroom with furniture
a bedroom with a bed and wooden floor
a kitchen with a stove a workspace and a window
a living room with furniture and a flat screen tv
a view of a building from a balcony
a view of a park with slide
a front view of a house with garden
a front view of a house with a yard
a large building with a clock on the side of it
a picture of a bench in front of a wall
a picture of a bathroom with a shower
a picture of a room with a white cabinet and a white refrigerator
Listed By CompassUnder Contract


Square Feet
an aerial view of residential house with outdoor space and trees all around
Listed By CompassUnder Contract


Square Feet