--- title: "Cornerstone Construction — Home Builders | Houzz" canonical_html_url: https://www.houzz.com/professionals/home-builders/cornerstone-construction-pfvwus-pf~1637248179 markdown_url: https://www.houzz.com/md/professionals/pf~1637248179.md entity_type: LocalBusiness business_name: "Cornerstone Construction" category: ["Home Builders"] image: https://st.hzcdn.com/fimgs/20d30a4505f6d930_6925-w400-h400-b0-p0--.jpg address: "Tavernier, Florida 33070, United States" latitude: 25.0108 longitude: -80.5218 phone: "(305) 852-4185" website: http://www.cornerstoneconstructionofthekeys.com rating: 0 review_count: 0 followers: 11 last_updated: 2026-09-05 --- # Cornerstone Construction Original Houzz profile: [Cornerstone Construction](https://www.houzz.com/professionals/home-builders/cornerstone-construction-pfvwus-pf~1637248179) ## Professional summary - **Primary category:** Home Builders - **Location:** Tavernier, FL - **Serves:** Key Largo, Marathon, Islamorada, Tavernier - **Houzz rating:** 0.0 out of 5 (0 reviews) ## About ### Houzz Badges - 5 Ideabook Saves Cornerstone Construction of the Florida Keys, Inc. is the leader for quality construction and personalized service in the Florida Keys and South Florida area since 1988. Our company builds and remodels custom luxury homes. In an effort to help better our environment Cornerstone includes green technology and energy efficient options in every project we undertake. Our company prides itself in our pursuit of keeping up with the latest building technology and products. Rest assured that Cornerstone will use the best and most efficient products needed to complete every job no matter what size. Our staff is a team of hardworking and experienced individuals. Our project mangers, on average, have over twenty years of experience in the construction industry in addition to President John Gilbert Jr.’s thirty-five years of experience. Our project managers are referred to as working foreman. They work hands on with every aspect of each project to ensure flawless quality. This skilled management team allows us to expand our work force at short notice and maintain our superior craftsmanship. Cornerstone has strict standards for our quality and to maintain this we do not subcontract out our construction work. We perform all of our own concrete forming, steel reinforcement, concrete finishing and truss/roof installation. On top of this our skilled carpenters set windows, hang doors and complete all of the wood trim work on each project. Cornerstone subcontracts out work for electric, plumbing, air-conditioning and other specialty areas. We have a strong rapport with our subcontractors and we have worked along side them for many years. We work hand in hand with our clients to guarantee that each project is exactly what they are looking for even down to the smallest detail. We believe that great communication is the key to creating your dream home and perfecting every job. Our legacy is built on our standard for quality work. Cornerstone has built the finest custom luxury homes from Ocean Reef to Key West. Our team is passionate about building and we look forward to working with our clients to make their dream home a reality. ### Services Provided - New Home Construction - Custom Homes - Home Remodeling - Home Additions - Home Extensions - Energy-Efficient Homes - House Plans - Multigenerational Homes - Guesthouse Design & Construction - Accessory Dwelling Units (ADUs) - Green Building - Project Management - Pool House Design & Construction - Garage Building - Home Restoration - House Framing - Floor Plans - Barn Design & Construction - Foundation Construction - Historic Building Conservation - Site Planning - Carport Installation - Handicap-Accessible Design - Drafting - Demolition - Structural Engineering - Site Preparation - Fireproofing - Log Home Construction - Insulation Installation - Modular Home Construction - Modular Home Additions - Waterproofing - Land Surveying - Storm Shelter Construction - Roof Waterproofing - Passive Solar Heating & Cooling ### Areas Served - Key Largo - Marathon - Islamorada - Tavernier ## Business Details | Field | Value | | --- | --- | | Business Name | Cornerstone Construction | | Address | Tavernier, Florida 33070, United States | | Phone | (305) 852-4185 | | Website | http://www.cornerstoneconstructionofthekeys.com | | Followers on Houzz | 11 | **Social profiles:** - Facebook — https://www.facebook.com/cornerstoneconstructionkeys ## Contact - **Houzz profile:** [Cornerstone Construction](https://www.houzz.com/professionals/home-builders/cornerstone-construction-pfvwus-pf~1637248179) - **Website:** http://www.cornerstoneconstructionofthekeys.com - **Phone:** (305) 852-4185 ## Selected projects - [Landau Residence](https://www.houzz.com/hznb/projects/landau-residence-pj-vj~5667359) - Location: Not specified - Photos: 20 - [Gilbert Residence](https://www.houzz.com/hznb/projects/gilbert-residence-pj-vj~5667349) - Location: Not specified - Photos: 17 - [Sansone Residence](https://www.houzz.com/hznb/projects/sansone-residence-pj-vj~5667351) - Location: Not specified - Photos: 20 - [Carle Residence](https://www.houzz.com/hznb/projects/carle-residence-pj-vj~1584589) - Location: Not specified - Photos: 15 - [Brown Residence](https://www.houzz.com/hznb/projects/brown-residence-pj-vj~1584577) - Location: Not specified - Photos: 19 - [Beaudoin Residence](https://www.houzz.com/hznb/projects/beaudoin-residence-pj-vj~1584572) - Location: Not specified - Photos: 22 - [Ocean Lane](https://www.houzz.com/hznb/projects/ocean-lane-pj-vj~1584625) - Location: Not specified - Photos: 22 - [Ross Residence](https://www.houzz.com/hznb/projects/ross-residence-pj-vj~1584631) - Location: Not specified - Photos: 11 - [Indian Mound Trail](https://www.houzz.com/hznb/projects/indian-mound-trail-pj-vj~1584617) - Location: Not specified - Photos: 15 - [Caloosa Drive](https://www.houzz.com/hznb/projects/caloosa-drive-pj-vj~1584585) - Location: Not specified - Photos: 16 - [Owen Residence](https://www.houzz.com/hznb/projects/owen-residence-pj-vj~1584630) - Location: Not specified - Photos: 17 - [Schutte Residence](https://www.houzz.com/hznb/projects/schutte-residence-pj-vj~1584643) - Location: Not specified - Photos: 12 - [Sacharoff Residence](https://www.houzz.com/hznb/projects/sacharoff-residence-pj-vj~1584634) - Location: Not specified - Photos: 12 - [Edward Residence](https://www.houzz.com/hznb/projects/edward-residence-pj-vj~1584607) - Location: Not specified - Photos: 20 - [Grossman Residence](https://www.houzz.com/hznb/projects/grossman-residence-pj-vj~1584613) - Location: Not specified - Photos: 15 - [TIB Renovation](https://www.houzz.com/hznb/projects/tib-renovation-pj-vj~1584646) - Location: Not specified - Photos: 7 [See all 16 projects](https://www.houzz.com/professionals/home-builders/cornerstone-construction-pfvwus-pf~1637248179) --- *Source: Houzz professional profile. Reflects the profile as of 2026-09-05.*