Updated: Apr 23, 2026
Location and Projects
Address
Boonsboro, MD, 21713
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John L. Sexton III Construction
John L. Sexton III, Boonsboro, MD (Owned by: John L. Sexton Iii) holds a Plumbers license and 2 other licenses according to the Maryland license board.
Their BuildZoom score of 101 ranks in the top 12% of 58,058 Maryland licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring John L. Sexton III, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
John L. Sexton III Services
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John L. Sexton III Contact Information
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Plumbing for new single family dwelling to also include radiant heat in floor and connection to well allen & edith myers lot 2
Valuation:
N/A
Permit #:
2023-03790
Status:
complete
Fee:
$220
Permit Type:
N/A
Building Type:
N/A
Plumbing for interior renovations to include water and sewer connection from dwelling and to install a toilet vanity shower kitchen sink water heater
Valuation:
N/A
Permit #:
2021-01539
Status:
complete
Fee:
$185
Permit Type:
N/A
Building Type:
N/A
Remodeling 1st and 2nd floor bathrooms addition shower in 1st floor bathroom change tub to shower in 2nd floor bathroom reinstall fixtures in existing locations
Valuation:
N/A
Permit #:
2021-01678
Status:
complete
Fee:
$130
Permit Type:
N/A
Building Type:
N/A
Plumbing for interior renovations to replace tub vanity and addition washer connection
Valuation:
N/A
Permit #:
2023-00741
Status:
complete
Fee:
$105
Permit Type:
N/A
Building Type:
N/A
Range replacement
Valuation:
N/A
Permit #:
BP-20-00780
Status:
complete
Fee:
$90
Permit Type:
N/A
Building Type:
N/A
Range replacement
Valuation:
N/A
Permit #:
BP-20-00698
Status:
complete
Fee:
$90
Permit Type:
N/A
Building Type:
N/A
Plumbing for a 144 sq. ft. two story addition on existing slab to be utilized as a bathroom on the first and second floor
Valuation:
N/A
Permit #:
2018-04846
Status:
issued
Fee:
$130
Permit Type:
N/A
Building Type:
N/A
Water heater replacement
Valuation:
N/A
Permit #:
BP-20-00558
Status:
complete
Fee:
$90
Permit Type:
N/A
Building Type:
N/A
Range replacement
Valuation:
N/A
Permit #:
BP-21-00232
Status:
complete
Fee:
$90
Permit Type:
N/A
Building Type:
N/A
Replace water heater
Valuation:
N/A
Permit #:
2020-01646
Status:
triage
Fee:
$40
Permit Type:
N/A
Building Type:
N/A
Electric water heater
Valuation:
N/A
Permit #:
2019-04600
Status:
complete
Fee:
$40
Permit Type:
N/A
Building Type:
N/A
Range replacement
Valuation:
N/A
Permit #:
BP-20-00697
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replaced water heater
Valuation:
N/A
Permit #:
2019-04619
Status:
complete
Fee:
$40
Permit Type:
N/A
Building Type:
N/A
Replaced water heater
Valuation:
N/A
Permit #:
2019-04483
Status:
complete
Fee:
$40
Permit Type:
N/A
Building Type:
N/A
Replace water heater
Valuation:
N/A
Permit #:
2019-04322
Status:
complete
Fee:
$40
Permit Type:
N/A
Building Type:
N/A
Replaced water heater
Valuation:
N/A
Permit #:
2019-04308
Status:
complete
Fee:
$40
Permit Type:
N/A
Building Type:
N/A
Replaced water heater
Valuation:
N/A
Permit #:
2019-03838
Status:
complete
Fee:
$40
Permit Type:
N/A
Building Type:
N/A
Replaced water heater
Valuation:
N/A
Permit #:
2019-01557
Status:
complete
Fee:
$40
Permit Type:
N/A
Building Type:
N/A
Replaced water heater
Valuation:
N/A
Permit #:
2019-01403
Status:
complete
Fee:
$40
Permit Type:
N/A
Building Type:
N/A
Replaced water heater
Valuation:
N/A
Permit #:
2019-00786
Status:
complete
Fee:
$40
Permit Type:
N/A
Building Type:
N/A
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John L. Sexton III License info
Verified License
| License # | 62383 |
| Status | Active |
| State | Maryland |
| Type | Plumbers |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for John L. Sexton III at the Maryland Department of Labor, Licensing & Regulation.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 34752 |
| Status | Active |
| State | Pennsylvania |
| Type | Contractor |
- When BuildZoom last verified this license, it had an expiration date of August, 2014. Check the current license status of John L. Sexton III with the Pennsylvania Office of the Attorney General
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | PA089108 |
| Status | Active |
| State | Pennsylvania |
| Type | Residential Plumbing And Remodeling |
- When BuildZoom last verified this license, it had an expiration date of February, 2016. Check the current license status of John L. Sexton III with the Pennsylvania Office of the Attorney General
This is a sample of licensing data; click here to access a complete history.
101
BuildZoom Score
Insured
| Insurer | Erie Insurance Exchange |
| Insured up to | $1,000,000 |
713
Permits
- Building permit records show that John L. Sexton III has worked on 713 permitted projects.
John L. Sexton III Employees
JJ
John L. Sexton, Jr.
Owner
JI
John L. Sexton Iii
Owner
JJ
John Lee Sexton Jr
Owner