JMB Construction LLC

JMB Construction describes itself on its website as a full-service construction company based in Connecticut, with work across custom homes, commercial remodels and multi-family units. The service area it lists runs from New Haven and Hamden out to Milford, Wallingford, Meriden, Derby and Ansonia. A recent customer said he replaced their front door and that it transformed the whole house. Writing about a deck, that same customer said the work was neat and the job well done. A recent customer said Mr. Koffi takes time to explain the job, the cost and the timeline, called his price reasonable, and said he fixed a simple issue outside the job scope. A recent customer described the work as professional, neat and organized, and said safety precautions were taken. A 2025 customer thanked John for painting all of their basement and garage floor. A 2025 customer recommended them for a tile job. A 2025 customer said he did all of that customer's handy work. A 2026 customer called the work affordable and said they would use them again. Connecticut lists its home improvement contractor registration, HIC.0579853, as active, held by JMB Construction LLC.