Our Services

  • Design & Build

    Design & Build

    Kosta and Son, Inc. is your premier design and build general contractor in Massachusetts, dedicated to transforming your vision into reality.

    Combining expertise in both design and construction, we streamline the project process to ensure seamless communication and superior results.

  • Modern kitchen with stainless steel appliances, white cabinets, and pendant lighting.

    Kitchens

    Transform your culinary space with Kosta and Son, Inc.'s premier kitchen remodel services.

    Our expert team is dedicated to elevating your kitchen to new heights of functionality and aesthetic appeal. Whether you envision a modern, sleek design or a warm, traditional ambiance, we tailor every aspect to suit your unique style and needs.
  • Bathroom with double sink vanity, two mirrors, green cabinets, and marble countertop.

    Bathrooms

    Kosta and Son, Inc specializes in bathroom remodels.

    Our team specializes in creating customized bathroom spaces that blend functionality and style, ensuring a seamless experience from design to completion. We prioritize quality craftsmanship, using premium materials and modern techniques to enhance the aesthetics and efficiency of your bathroom.
Learn More About The Process

The Kosta & Son Experience

What truly sets Kosta & Son apart is our commitment to the human element of home renovation. We understand that inviting a team into your most personal spaces requires trust, clear communication and respect for your daily life.

What you can expect from us immediately:

An approach that begins by listening - truly listening - to understand how you use your space, what challenges you face and what would make your home function better for your specific needs. We then craft a renovation experience that accommodates your lifestyle, minimizes disruption and addresses your individual concerns.

From our first conversation to the final walkthrough, we provide a level of personalized care that transforms what is typically a stressful process into a thoughtful journey. Our clients don’t just receive a beautiful new space - they experience a renovation process as unique as they are.

Every project we undertake advances our vision of what homeowners should expect from a truly premium renovation experience: one where both the journey and destination are exceptional.

Four people standing on a sidewalk in front of a red brick building with large windows and a tree. They are smiling and dressed in casual fall clothing.

Our Story

Kosta and Son’s roots go back over 35 years to Greece, where Kosta— the father—crafted homes by hand using natural stone. From a young age, Armando spent summers and weekends learning the art of building from his father, gaining invaluable skills and a deep appreciation for quality craftsmanship.

In 2019, Armando brought this family tradition to Worcester, Massachusetts, founding Kosta and Son, Inc. alongside his father. Together, they set out to share Kosta’s timeless skills and unwavering integrity with homeowners throughout Massachusetts.

What began as a father-son passion has grown into a trusted local business dedicated to quality, honesty, and building lasting relationships.

Modern kitchen with white cabinets, stainless steel appliances, and a large island with a cooktop.

Why people choose us

Kosta and Son, Inc. is your premier general contractor in Massachusetts, specializing in custom design and build projects.

We take pride in transforming spaces, offering exceptional services in kitchen and bathroom renovations, as well as stunning patio and stonework. Our team is dedicated to quality craftsmanship, ensuring that each project reflects your unique vision and lifestyle. With a focus on reliability and client satisfaction, we deliver tailored solutions that meet your specific needs.

Trust Kosta and Son, Inc. to create beautiful, functional spaces that enhance your home.

  • "Not only did Kosta and Son provide exceptional work he provided exceptional service. Armando's honesty, attention to detail and promptness is a breath of fresh air for a general contractor. He was readily available for questions, concerns and insight during the whole process of our guest bathroom renovation. We look forward to working with him again in the future."

  • "What truly set him apart was his dedication to quality. On the final day, he went above and beyond by personally inspecting everything and making sure any minor imperfections were fixed on his own time. It’s rare to find a contractor who takes that level of pride in their work."

  • "Armando collaborated with trustworthy, family-oriented suppliers and subcontractors, which gave us peace of mind, especially when we weren’t home. His team was not only professional and respectful of our space, but they also maintained a clean and organized work environment at the end of each day. When challenges arose, Armando addressed them swiftly and efficiently, ensuring the project continued smoothly from start to finish."

  • "If ever there were any issues (and overall there were only just a few minor things, which was amazing given the large scope of work), we were encouraged to share our concerns, they were thoughtfully listened to and addressed above and beyond. We couldn't be happier with our new space and wouldn't hesitate to give more than 5 stars if we could!"

  • "I would highly recommend hiring Kosta and Son for their professional work ethic and amazing results. It’s just nice to hire good, honest, reliable people and get quality work."

  • "Kosta & Son reset my patio floor. It had become uneven and lose years of from rain and weather. This is the 4th job I’ve had them do for me, the second stone work. They did both of my bathrooms as well. They are timely and great craftsman. I’m very pleased with their work."

  • "Armando is our go-to contractor for all projects in our home now. We would recommend him to anyone that needs work done in their home."

Modern kitchen with granite countertops, stainless steel appliances, wooden cabinets, and a kitchen island. There is a pendant light, hardwood flooring, and a window above the sink. A drop cloth is on the floor, suggesting renovations.
Modern kitchen with white cabinets, wooden floor, marble island, pendant lights, and bar stools.