How many projects has Keys Contracting Services Inc undertaken?

Keys Contracting Services Inc has pulled 170.0 building permits since 2005.

Does Keys Contracting Services Inc carry a valid contracting license?

Keys Contracting Services Inc currently holds license CFC1427749, CPC1458961, CGC1521156, 16224, 12549, 11052, KEYS CONTRACTING SERVICES - PLUMBING GAS CONT. QUAL. BD., KEYS CONTRACTING SERVICES - MASTER PLUMBER, QB51297 (Certified Plumbing Contractor, Certified Pool/Spa Contractor, Certified General Contractor, Construction Business Information, Plumbing + Gas Cont. Qual. Bd., Plumber), which was Active when we last checked.

Keys Contracting Services Inc

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Best General Contractors in Marathon

Updated: Dec 06, 2025

Keys Contracting Services Construction

Keys Contracting Services Inc, 5210 Dogwood Dell St, Marathon, FL (Owned by: Gratton John Christopher) holds a Certified Plumbing Contractor license and 10 other licenses according to the Florida license board.

Their BuildZoom score of 93 ranks in the top 27% of 191,428 Florida licensed contractors.

Their license was verified as active when we last checked. If you are thinking of hiring Keys Contracting Services Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.

Building Permits by Keys Contracting Services Inc

Sort by: Notable Notable | Date Date | Job Value Job Value

This is a sample of this contractor's permits. Click here to access their complete permit history.

Building permit

5050 Overseas Hwy, Marathon, FL, 33050

2021-08-10

1. demolition of existing structure2. new credit union branch office with a two lane drive-up canopy asphalt parking lot and an emergency generator. exterior materials are concrete masonry with an eifs finish. all windows have impact glazing. the building has a standing seam metal roof. memebers

Valuation:

$1,421,772

Permit #:

P-20-2472

Status:

issued

Fee:

N/A

Permit Type:

N/A

Building Type:

N/A

Building permit

541 52nd St, Marathon, FL, 33050

2020-07-29

Renovations and addition. addition 2, 184 sq ft commercial kitchen mens and women's bathroom meeting space and storage space. new windows and doors. renovations- new gluelam beams window replacement door replacement. ***information rec'd 8/6/2020** new replacement front page of permit application propane sign on no fire alarms or sprinklers being added. demolish work or removal of wal... see more

Valuation:

$535,000

Permit #:

P-20-2396

Status:

issued

Fee:

N/A

Permit Type:

N/A

Building Type:

N/A

Building permit

11548 6th Ave, Marathon, FL, 33050

2020-04-08

**replacement - prefab wood panels - hardie board siding - metal roof**hurricane irma rebuild. new single family residence by deltec homes as per plans. 1 bedroom 1-1/2 bathrooms 1, 237 sf ***info & tracking new home single family residence by deltec homes/panel home wood/metal roof*** lf 5/12/2020 5/19/2020 rec'd informat

Valuation:

$275,000

Permit #:

P-20-2854

Status:

complete

Fee:

N/A

Permit Type:

N/A

Building Type:

N/A

Building permit

58182 Overseas Hwy Grassy Ky, Florida, FL, 33050

2021-01-06

Wood fence east property line connecting to east-fence between pool and beach pavers as per plans railing on balcony and pool perimeter stormwater swale beach berm with native dune species & two (2) berm walk-over structures. ***info & tracking - 12/6/18 - structural details for tiki breakdo

Valuation:

$15,000

Permit #:

P-19-2951

Status:

suspended

Fee:

N/A

Permit Type:

N/A

Building Type:

N/A

Building permit

8045 Bonita Dr, Marathon, FL, 33050

2019-01-18

***bpas***new single family residence engineered by carl schror p.e. total building area including stairs & porches: 2352 sf 5 concrete columns. finished first floor at 10'.4'connect electric services water sewer & hvac connection.windload 180 mph 75% open space for vegetation install

Valuation:

$325,000

Permit #:

P-19-13

Status:

complete

Fee:

N/A

Permit Type:

N/A

Building Type:

N/A

07-mod - single family res-modular

29541 Forrestal Ave, Big Pine Key, FL, 33043

2022-06-24

07-mod - single family res-modular

Valuation:

$312,500

Permit #:

20100952

Status:

complete

Fee:

N/A

Permit Type:

N/A

Building Type:

N/A

Building permit

113 Avenue D Coco Plum Ky, Florida, FL, 33050

2018-01-09

2-story modular home on 11 foot tall columns factory hardie siding factory metal roof fiberglass pool no pool heater paver deck kid safe pool net and sewer connection. bpas: heat recovery native vegetation 2500gallon cistern and energy below 0.7***info & tracking - 1/15/2020 - addition cist

Valuation:

$320,000

Permit #:

P-18-4792

Status:

complete

Fee:

N/A

Permit Type:

N/A

Building Type:

N/A

Building permit

113 Avenue D Coco Plum Ky, Florida, FL, 33050

2018-01-09

Valuation:

$320,000

Permit #:

P-18-4789

Status:

complete

Fee:

N/A

Permit Type:

N/A

Building Type:

N/A

Building permit

113 Avenue D Coco Plum Ky, Florida, FL, 33050

2018-01-09

Valuation:

$320,000

Permit #:

P-18-4788

Status:

complete

Fee:

N/A

Permit Type:

N/A

Building Type:

N/A

Building permit

113 Avenue D Coco Plum Ky, Florida, FL, 33050

2018-01-09

Valuation:

$320,000

Permit #:

P-18-3383

Status:

complete

Fee:

N/A

Permit Type:

N/A

Building Type:

N/A

Building permit

113 Avenue D Coco Plum Ky, Florida, FL, 33050

2018-01-09

Valuation:

$320,000

Permit #:

P-18-3385

Status:

complete

Fee:

N/A

Permit Type:

N/A

Building Type:

N/A

Building permit

113 Avenue D Coco Plum Ky, Florida, FL, 33050

2018-01-09

Valuation:

$320,000

Permit #:

P-18-3384

Status:

complete

Fee:

N/A

Permit Type:

N/A

Building Type:

N/A

Building permit

113 Avenue D Coco Plum Ky, Florida, FL, 33050

2018-01-09

Valuation:

$320,000

Permit #:

P-18-2854

Status:

complete

Fee:

N/A

Permit Type:

N/A

Building Type:

N/A

Building permit

113 Avenue D Coco Plum Ky, Florida, FL, 33050

2018-01-09

Valuation:

$320,000

Permit #:

P-18-2853

Status:

complete

Fee:

N/A

Permit Type:

N/A

Building Type:

N/A

Building permit

113 Avenue D Coco Plum Ky, Florida, FL, 33050

2018-01-09

Valuation:

$320,000

Permit #:

P-18-2855

Status:

complete

Fee:

N/A

Permit Type:

N/A

Building Type:

N/A

Building permit

113 Avenue D Coco Plum Ky, Florida, FL, 33050

2018-01-09

Valuation:

$320,000

Permit #:

P-18-169

Status:

complete

Fee:

N/A

Permit Type:

N/A

Building Type:

N/A

Building permit

113 Avenue D Coco Plum Ky, Florida, FL, 33050

2018-01-09

Valuation:

$320,000

Permit #:

P-18-168

Status:

complete

Fee:

N/A

Permit Type:

N/A

Building Type:

N/A

Building permit

113 Avenue D Coco Plum Ky, Florida, FL, 33050

2018-01-09

Valuation:

$320,000

Permit #:

P-18-167

Status:

complete

Fee:

N/A

Permit Type:

N/A

Building Type:

N/A

07-mod - single family res-modular

574 Sands Rd, Big Pine Key, FL, 33043

2021-09-22

07-mod - single family res-modular

Valuation:

$265,000

Permit #:

17105659

Status:

complete

Fee:

N/A

Permit Type:

N/A

Building Type:

N/A

Building permit

58182 Overseas Hwy Grassy Ky, Florida, FL, 33050

2019-08-20

Valuation:

$15,000

Permit #:

P-19-2695

Status:

complete

Fee:

N/A

Permit Type:

N/A

Building Type:

N/A

Recent Buildzoom Projects

View all

Verified License

License #	CFC1427749
Status	Active
State	Florida
Type	Certified Plumbing Contractor

BuildZoom verified this license was active as of July 2025.

Verify this license's status for Keys Contracting Services Inc at the Florida Department of Business & Professional Regulation.

This is a sample of licensing data; click here to access a complete history.

Verified License

License #	CPC1458961
Status	Active
State	Florida
Type	Certified Pool/Spa Contractor

BuildZoom verified this license was active as of July 2025.

Verify this license's status for Keys Contracting Services Inc at the Florida Department of Business & Professional Regulation.

This is a sample of licensing data; click here to access a complete history.

Verified License

License #	CGC1521156
Status	Active
State	Florida
Type	Certified General Contractor

BuildZoom verified this license was active as of July 2025.

Verify this license's status for Keys Contracting Services Inc at the Florida Department of Business & Professional Regulation.

This is a sample of licensing data; click here to access a complete history.

Verified License

Status	Active
State	Florida
Type	Construction Business Information

BuildZoom verified this license was active as of November 2025.

This is a sample of licensing data; click here to access a complete history.

License Not Verified

License #	16224
Status	Active
County	Monroe County

When BuildZoom last verified this license, it had an expiration date of December, 2022. Check the current license status of Keys Contracting Services Inc with the Monroe County

This is a sample of licensing data; click here to access a complete history.

License Not Verified

License #	12549
Status	Active
County	Monroe County

When BuildZoom last verified this license, it had an expiration date of December, 2025. Check the current license status of Keys Contracting Services Inc with the Monroe County

This is a sample of licensing data; click here to access a complete history.

License Not Verified

License #	11052
Status	Active
County	Monroe County

When BuildZoom last verified this license, it had an expiration date of December, 2025. Check the current license status of Keys Contracting Services Inc with the Monroe County

This is a sample of licensing data; click here to access a complete history.

Inactive License

Status	Inactive
City	Hollywood
Type	Plumbing + Gas Cont. Qual. Bd.

According to the City of Hollywood Contractor Directory, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.

Check this license's status for Keys Contracting Services Inc at the City of Hollywood Contractor Directory.

This is a sample of licensing data; click here to access a complete history.

Inactive License

Status	Inactive
City	Hollywood
Type	Plumber

According to the City of Hollywood Contractor Directory, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.

Check this license's status for Keys Contracting Services Inc at the City of Hollywood Contractor Directory.

This is a sample of licensing data; click here to access a complete history.

Inactive License

Status	Inactive
City	Hollywood
Type	Plumber

According to the City of Hollywood Contractor Directory, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.

Check this license's status for Keys Contracting Services Inc at the City of Hollywood Contractor Directory.

This is a sample of licensing data; click here to access a complete history.

Inactive License

License #	QB51297
Status	Inactive
State	Florida
Type	Construction Business Information,

According to the Florida Department of Business & Professional Regulation, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.

Check this license's status for Keys Contracting Services Inc at the Florida Department of Business & Professional Regulation.

This is a sample of licensing data; click here to access a complete history.

93

BuildZoom Score

How the BuildZoom Score works

170

Permits

Building permit records show that Keys Contracting Services Inc has worked on 170 permitted projects.

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Keys Contracting Services

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Keys Contracting Services Construction