The Florida’s Keys finest custom builders from Ocean Reef to Key West

Cornerstone Construction takes pride in being the Florida Keys finest custom builders from Key Largo's Ocean Reef, the Village of Islamorada, to Key West. For over twenty years, we have built our reputation on delighted homeowners and clients. Whether we build a multimillion dollar custom home or it's a small renovation project, our customers have always relied on us for quality, dependable and courteous service.


  • Custom homes

  • Residential Additions

  • Resident Renovations

  • Concrete Shells, Docks & Seawalls

  • Wooden Docks

  • Boat Lift & Boat Davits

  • Property Service

Contact us for any of these repair or remodeling services

Cornerstone Construction provides the same superior quality service for your home maintenance and home improvements. All of our subcontractors are fully licensed and insured to protect our clients. Because of our ongoing working relationships with numerous subcontractors, we can arrange for home services at a lesser cost than you the homeowner can by contracting with them directly. They offer us discounted prices due to the volume of work that we provide to them.

  • Air-conditioning

  • Electrical

  • Impact Windows and Doors

  • Kitchen and Bath

  • Tile and Wood Flooring

  • Painting

  • Plumbing

  • Roofing



Call Us Today for a FREE Consultation!