PV{name} Logo

About Us

The JM Window Treatments & Design Showroom

A Legacy of Design: Three Generations, One Passion


Our family’s journey in the world of decorating is a story woven with unexpected turns, enduring dedication, and a shared love for creating beautiful spaces.


It all began in 1965, when my grandfather laid the foundation for our paint, wallpaper, and window treatment store. In 1978, my father, Michael Sferrazza, took the reins and led the business to new heights, becoming a trusted name in the Rockville Center community.


My own path seemed to lead elsewhere. After earning a BA in Liberal Arts in 1992, I entered a tough job market and began helping my father at the store—just temporarily, or so I thought. A chance encounter with a sales manager from Hunter Douglas soon changed everything. Within a year, I had become an Account Executive, opening the door to a fulfilling career I hadn’t planned, but quickly came to love.


When motherhood called, I stepped back from the corporate world—but not from creativity. Running a business from home while taking online interior decorating classes felt like a natural evolution. Still, it wasn’t until my children were older and I pursued a formal degree in interior design that I truly found where my heart belonged.

John & Deanna of The JM Window Treatments & Design

Now, a new chapter is unfolding—and it’s a full family affair. My daughter, Deanna, has inherited our family’s eye for design. Inspired by color, creativity, and her love of HGTV, she earned a BA in Interior Design from Pratt Institute—one of the nation's top programs. Her talent, fresh perspective, and enthusiasm have brought new life to our shared vision


My son, John, has also joined the business, adding a whole new layer to what we offer. He handles small contracting work, blind repairs, general home fixes, house watching, and furniture delivery. John is also in charge of our growing mattress section. His reliability, hands-on skill set, and problem-solving nature make him an essential part of our team—and a trusted resource for our clients.


Today, our family is proud to continue the tradition, side by side. Together, we bring three generations of experience, passion, and innovation to every project. We believe in creating spaces that tell stories—yours and ours—and reflect a legacy built not just on design, but on heart.


Here’s to honoring the past, embracing the present, and designing the future—one beautiful space at a time.

Deanna Colondona - Interior Designer

INTERIOR DESIGNER


We are thrilled to introduce our talented new interior designer, Deanna Colondona, who will transform your vision into a stunning reality. With her keen eye for design, impeccable taste, and passion for creating exceptional living spaces, Deanna's dedicated to crafting personalized environments that reflect your unique style and enhance your everyday living. Deanna completed her BFA in interior design at Pratt Institute. Deanna is proficient in interior design, SketchUp, Adobe In Design, Adobe Illustrator, Adobe Photoshop, drafting, CAD, furniture design, furniture sales, and Adobe Creative Suite. We are excited to be able to add and offer these services to our clients and help you create the home of your dreams.

Interior Designer at JM Designs Michaela

Meet Michaela


Interior Designer at JM Designs Michaela is one of our talented interior designers at JM Designs, bringing creativity, expertise, and a fresh perspective to every project she takes on. She holds a BFA in Interior and Spatial Design from Russell Sage College, where she built a strong foundation in core design principles. With a passion for crafting spaces that are both functional and inspiring, Michaela is known for her thoughtful, client-centered approach. She carefully considers each client’s lifestyle, needs, and personality to create interiors that truly reflect who they are. Her design philosophy is grounded in attention to detail, an intuitive understanding of spatial flow, and a deep appreciation for how materials and environments influence emotion. Whether she's designing residential homes, commercial spaces, or specialty environments, Michaela is committed to delivering work that feels intentional, refined, and uniquely tailored to its users.

Contracting, House Watching, Furniture Delivery


JM Designs is happy to announce we offer home staging, small contracting jobs, house watching, furniture delivery, and more.


Our services include: Contracting Services, Hanging Pictures, Appliance Installations, Molding Installations, Changing Hunter Douglas Batteries For Motorized Shades, Paint Touch Ups, Cabinet Installation, Backsplash Installations, Outlet installations, Light switch Installations, Assembling & Delivering Furniture, Drywall Installations, Painting for Interior & Exterior, Tile Installations, Tv wall mounting, Ceiling Repair Computer/Monitor/PC Set up, Shelving installations, Air filters, Baby proofing, Caulking Door handles, House Watching Services , Turning the water heaters on and off, Resetting the air conditioner to the specified setting, Plugging or unplugging appliances and electronics, Flushing toilets and running faucets, Lightly Fabreezing fabrics and carpets, Running dishwasher on a short cycle, Placing baking soda in after your departure, Turning on an outside light ahead of your arrival, Make sure doors and windows are secure once you leave, Delivering pet food & supplies from a guaranteed lower-priced supplier, delivery no matter where you're located.


For blind and shade repairs, please visit: https://jmshaderepairs.com/

Google Reviews

Yelp Reviews

There are no Yelp reviews yet.

Follow Us On Facebook

Follow Us On Pinterest

JM Window Treatments & Design is a local window fashions dealer specializing in a full selection of Hunter Douglas window treatments, including horizontal blinds, vertical blinds, Roman shades, roller shades, honeycomb cellular shades, sheer shadings, woven wood shades, shutters, and motorized blinds and shades. We serve Suffolk County and Nassau Counties.