General contractors in Marathon, FL 33050

21 general contractors, with local market data for this ZIP.

Area profitability, construction60 / 100Strong market, crowded field
Typical home value$836,000+1.9% in the past year
New homes permitted, 2025279Monroe County
Homeowners61.5%4,268 households

Source: Zillow (home value and housing demand in the score), data through Sep 2026. Permits and households: U.S. Census Bureau.

AmeristarGeneral contractor · 11400 Overseas Hwy, Marathon(609) 339-2692 · ameristargroup.com
Artic Temp of the Florida KeysGeneral contractor · 9699 Overseas Hwy, Marathon(305) 514-0531 · artictempinc.com
Coral Construction CompanyGeneral contractor · 347 Aviation Blvd, Marathon(305) 394-0747 · coralconstructioncompany.com
Cruz-in the Keys ConstructionConstruction company · 6400 Overseas Hwy, Marathon(305) 423-8778 · cruzinthekeys.com
Design CenterConstruction company · 6677 Overseas Hwy, Marathon(305) 735-4042 · designcenterfl.com · 4 drivers, 3 trucks
Keys Contracting ServicesGeneral contractor · 935 107th Street Gulf, Marathon(305) 743-7080 · keyscontractingservices.com
Lighthouse Home ServicesGeneral contractor · 1172 91st Ct Ocean, Marathon(305) 432-6945 · Lighthouse.work
Marathon Marine ConstructionConstruction company · 60 Coco Plum Dr, Marathon(305) 289-7350 · marathonmarineconst.com
Marathon Seawalls & DocksGeneral contractor · 210 20th Street Ocean, Marathon(305) 289-9393 · marathonseawalls.com · 1 driver, 1 truck
New Life Painting & Home ImprovementGeneral contractor · 6623 Oceanview Ave, Marathon(305) 743-2431 · new-lifepainting.com
Queen Conch ConstructionConstruction company · 3980 Overseas Hwy, Marathon(305) 743-5384 · Queenconchcc.com
Rolando Oliva FlooringGeneral contractor · 71 53rd Street Ocean, Marathon(786) 333-1136 · rolandolivaflooring.webs.com
Shoreline Marine Construction IncConstruction company · 13371 Overseas Hwy, Marathon(305) 743-0827 · Shorelinemarineconstructioninc.com
AMIE Construction Inc.Construction company · 955 25th Street Ocean, Marathon(305) 803-0069
Coral Marine ConstructionConstruction company · Marathon(305) 743-0059 · 1 driver, 3 trucks
Ga Contractors Inc Of South FLConstruction company · Marathon(305) 680-8000 · 1 driver, 1 truck
IDB Custom BuildersConstruction company · 98th Street Ocean, Marathon(305) 731-4563
Modular Homes of the Florida KeysGeneral contractor · 11400 Overseas Hwy, Marathon(305) 289-1141
O & G Construction And Plumbing CorpConstruction company · Marathon(786) 299-2612 · 1 driver, 1 truck
One Hundred Percent ConstructionConstruction company · 1696 74th Street Ocean, Marathon(305) 900-7498
Slazar Construction & Plumbing IncConstruction company · Marathon(305) 735-4351 · 8 drivers, 19 trucks

Construction in ZIP 33050 at a glance

Local building angle: Monroe County permitted 279 new homes in 2025, including 8 apartment units. 21% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.