How are general contracting records in Marathon verified on HomeCrafto?

Every general contracting listing in Marathon is compiled from official state and municipal licensing rosters, displaying the credential number, issuing authority, and source date.

What should homeowners verify before hiring a contractor in Marathon?

Confirm active credential status with the issuing authority, verify that the license scope covers your project in Marathon, and request a current Certificate of Insurance (COI) before work begins.

General contracting in Marathon

Records are organized by registered address. A credential from another jurisdiction does not establish authorization to work here.

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50 general contracting records · Marathon

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Public Directory Quality: Official state license records in Marathon · Zero sponsored order · Never sold as a lead · How our data works →

General contracting directory

50 matching records · 25 on this page · Alphabetical order. Coverage is the matched city/category scope.

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Hours, insurance, reviews and service coverage are not established by a license-file entry.

Show registered-address map (25 records on this page)

Shaded areas mark approximate postal or city locations, not premises or service areas. Circle sizes are illustrative, not postal boundaries. Some records share the same area. Private addresses are excluded.

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3rd Generation Plumbing Inc

Official license file General contracting · Florida Department of Business and Professional Regulation

Registered address: 3980 OVERSEAS HWY, Marathon, FL 33050

CBC1258320 · Source dated 2026-10-18 · Service area not confirmed. · Verify on Florida portal →

+1 more registration for this business

CGC1523201 · 3980 OVERSEAS HWY, Marathon, FL 33050

No public phone or website on record.

Affordable Concrete Repair LLC

Official license file General contracting · Florida Department of Business and Professional Regulation

Registered address: 7954 TUNA DRIVE, Marathon, FL 33050

CBC1266670 · Source dated 2026-10-18 · Service area not confirmed. · Verify on Florida portal →

No public phone or website on record.

Blue Castle Inc

Official license file General contracting · Florida Department of Business and Professional Regulation

Registered address: 934 92 COURT OCEAN, Marathon, FL 33050

CGC040204 · Source dated 2026-10-18 · Service area not confirmed. · Verify on Florida portal →

No public phone or website on record.

Can Do Construction Of The Keys, Inc.

Official license file General contracting · Florida Department of Business and Professional Regulation

Registered address: 98 AVE O, Marathon, FL 33050

CGC1525579 · Source dated 2026-10-18 · Service area not confirmed. · Verify on Florida portal →

No public phone or website on record.

Caton Aluminum & Glass Inc

Official license file General contracting · Florida Department of Business and Professional Regulation

Registered address: 110 49TH STREET OCEAN, Marathon, FL 33050

CBC037799 · Source dated 2026-10-18 · Service area not confirmed. · Verify on Florida portal →

No public phone or website on record.

Chad Walker Contracting, LLC

Official license file General contracting · Florida Department of Business and Professional Regulation

Registered address: 98 AVE O, Marathon, FL 33050

CGC1521190 · Source dated 2026-10-18 · Service area not confirmed. · Verify on Florida portal →

No public phone or website on record.

Ci Development LLC

Official license file General contracting · Florida Department of Business and Professional Regulation

Registered address: 940 W 75TH STREET OCEAN, Marathon, FL 33050

CGC1539055 · Source dated 2026-10-18 · Service area not confirmed. · Verify on Florida portal →

No public phone or website on record.

Construction Dynamics Inc

Official license file General contracting · Florida Department of Business and Professional Regulation

Registered address: 1477 OVERSEAS HIGHWAY, Marathon, FL 33050

CRC1330124 · Source dated 2026-10-18 · Service area not confirmed. · Verify on Florida portal →

No public phone or website on record.

Coral Construction Company

Official license file General contracting · Florida Department of Business and Professional Regulation

Registered address: 1156 CAMINO DEL VIENTOS, Marathon, FL 33050

CBC1264278 · Source dated 2026-10-18 · Service area not confirmed. · Verify on Florida portal →

No public phone or website on record.

Cruz-In The Keys Construction, LLC

Official license file General contracting · Florida Department of Business and Professional Regulation

Registered address: 565 65TH STREET OCEAN, Marathon, FL 33050

CGC1527278 · Source dated 2026-10-18 · Service area not confirmed. · Verify on Florida portal →

No public phone or website on record.

D'asign Source LLC

Official license file General contracting · Florida Department of Business and Professional Regulation

Registered address: 11500 OVERSEAS HWY, Marathon, FL 33050

CBC1264433 · Source dated 2026-10-18 · Service area not confirmed. · Verify on Florida portal →

+2 more registrations for this business

CGC026675 · 11500 OVERSEAS HWY, Marathon, FL 33050
CGC1531327 · 1690 COCO PLUM DRIVE, Marathon, FL 33050

No public phone or website on record.

Design Center Inc

Official license file General contracting · Florida Department of Business and Professional Regulation

Registered address: 6677 OVERSEAS HIGHWAY, Marathon, FL 33050

CGC1523838 · Source dated 2026-10-18 · Service area not confirmed. · Verify on Florida portal →

No public phone or website on record.

Ed Sims Developement LLC

Official license file General contracting · Florida Department of Business and Professional Regulation

Registered address: 1730 COCOPLUM DR, Marathon, FL 33050

CGC1517338 · Source dated 2026-10-18 · Service area not confirmed. · Verify on Florida portal →

No public phone or website on record.

Lizano Construction Group LLC

Official license file General contracting · Florida Department of Business and Professional Regulation

Registered address: 2383 DOLPHIN DRIVE, Marathon, FL 33050

CBC1263269 · Source dated 2026-10-18 · Service area not confirmed. · Verify on Florida portal →

No public phone or website on record.

G A Contractors Inc South FL

Official license file General contracting · Florida Department of Business and Professional Regulation

Registered address: 7539 GULFSTREAM BLVD, Marathon, FL 33050

CGC1523788 · Source dated 2026-10-18 · Service area not confirmed. · Verify on Florida portal →

No public phone or website on record.

Harrington & Sons Construction, LLC

Official license file General contracting · Florida Department of Business and Professional Regulation

Registered address: 418 CALLE LIMON, Marathon, FL 33050

CGC1538595 · Source dated 2026-10-18 · Service area not confirmed. · Verify on Florida portal →

No public phone or website on record.

In Paradise Construction,inc.

Official license file General contracting · Florida Department of Business and Professional Regulation

Registered address: 542 109TH ST OCEAN, Marathon, FL 33050

CRC1334580 · Source dated 2026-10-18 · Service area not confirmed. · Verify on Florida portal →

No public phone or website on record.

Isla Builders Inc

Official license file General contracting · Florida Department of Business and Professional Regulation

Registered address: 813 64TH ST OCEAN, Marathon, FL 33050

CBC1267504 · Source dated 2026-10-18 · Service area not confirmed. · Verify on Florida portal →

No public phone or website on record.

Isla Concrete Restoration LLC

Official license file General contracting · Florida Department of Business and Professional Regulation

Registered address: 1070 79TH STREET OCEAN, Marathon, FL 33050

CBC1267947 · Source dated 2026-10-18 · Service area not confirmed. · Verify on Florida portal →

No public phone or website on record.

Island Constructors Inc/S W F

Official license file General contracting · Florida Department of Business and Professional Regulation

Registered address: 26 COCO PLUM DR, Marathon, FL 33050

CGC031487 · Source dated 2026-10-18 · Service area not confirmed. · Verify on Florida portal →

No public phone or website on record.

Ivan Tile, Inc.

Official license file General contracting · Florida Department of Business and Professional Regulation

Registered address: 940 W 75TH STREET OCEAN, Marathon, FL 33050

CGC1540272 · Source dated 2026-10-18 · Service area not confirmed. · Verify on Florida portal →

No public phone or website on record.

J And Y Marble Granite Design LLC

Official license file General contracting · Florida Department of Business and Professional Regulation

Registered address: 565 65TH STREET OCEAN, Marathon, FL 33050

CGC1530378 · Source dated 2026-10-18 · Service area not confirmed. · Verify on Florida portal →

No public phone or website on record.

Before the first call

Describe the job and ask whether it is within their scope and service area.
Check the credential with its issuing authority and ask what applies where the work will happen.
Ask about insurance, availability, who will do the work, and a written scope.
Ask about callout fees, labor or fixed rates, materials, cancellation and any estimate charge.

Prepare a project brief

Verification Overview & Key Takeaways: How to Check Official Credentials

Every listing on HomeCrafto is compiled directly from official state and municipal licensing rosters rather than paid lead-generation feeds. Before signing a work order or paying a deposit, homeowners should confirm that the contractor’s credential number is active, verify that the license classification covers the specific trade scope required for the job, and request a current Certificate of Insurance (COI) directly from the issuing insurance carrier. Independent verification protects your property and ensures compliance with local building codes.

How do you verify a contractor license number and insurance on official portals (FAQ)?

You can verify active license standing and consumer protection rules directly through official government portals, including Washington L&I Contractor Verify, the California Contractors State License Board (CSLB), the Connecticut eLicense Portal, USA.gov State Consumer Protection Offices, and FTC Home Improvement Consumer Guidance. Always confirm municipal permit requirements with your local building department before work begins.

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