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a new home showcasing an addition to the house


Renovated Space with a new room addition


Expand your living space with our room additions or bump outs. Whether it's enlarging your kitchen for family gatherings or extending your master bedroom for extra comfort, our team can seamlessly integrate new spaces into your home, enhancing both function and style.

 garage conversion showing the new garage and driveway


Transform your garage into a vibrant new living space with our garage conversion services. From cozy bedrooms to functional home offices, we reimagine your garage space to meet your evolving lifestyle needs

Second story addition to a home


Sky's the limit with our second story additions. Ideal for homes with limited ground space, we expertly add a new level to your home, providing ample room for your growing needs while maintaining the integrity and aesthetic of your existing structure.

mother daughter addition to a house


Create a private retreat for guests or family with our in-law suites and ADU services. These self-contained units offer independent living space, perfect for multi-generational families or as a potential rental opportunity.

sunroom addition to a house showing beautiful windows and minimal furniture


Bring the outdoors in with our custom sunroom additions. Enjoy the beauty of the seasons year-round in a comfortable, light-filled space designed for relaxation and entertainment, all while adding value to your home.

Patio addition showcasing a new fireplace and trellis with seating


Enhance your outdoor living with our custom-designed patios and greenhouses. Our patios offer the perfect setting for relaxation and entertainment in your backyard, while our greenhouses provide a serene sanctuary for your gardening passion.


Discover the pinnacle of home transformations with J & M General Contractors, South Plainfield's premier experts in home additions and renovations. Specializing in creating bespoke new kitchens, bathrooms, basements, and home extensions, we are dedicated to turning your vision into reality. As a fully insured contractor, we offer you peace of mind, guaranteeing the highest standards of safety and quality in every project. Our seasoned team, deeply rooted in South Plainfield, NJ, is committed to delivering exceptional craftsmanship and innovative designs tailored to your unique needs. Whether you're envisioning a modern kitchen makeover, a luxurious bathroom upgrade, or a spacious new addition to your home, J & M General Contractors is your trusted partner in bringing these dreams to life. Embrace the journey of transforming your space into a sanctuary of comfort and style with us, where your satisfaction is our foremost priority.


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