Updated: May 17, 2026
Location and Projects
Address
12412 CATOCTIN FURNACE ROAD, Thurmont, MD, 21788
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J.T. Gillis Construction Co LLC
J.T. Gillis Construction Co LLC, 12412 Catoctin Furnace Rd, Thurmont, MD (Owned by: J.T. Gillis Construction Co Llc) holds a Home Improvement license and 2 other licenses according to the Maryland license board.
Their BuildZoom score of 90 indicates that they are licensed or registered but we do not have additional information about them.
Their license was verified as active when we last checked. If you are thinking of hiring J.T. Gillis Construction Co LLC, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
J.T. Gillis Construction Co LLC Services
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J.T. Gillis Construction Co LLC Contact Information
Phone Number: (301) 399-6702
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Address: 12412 CATOCTIN FURNACE ROAD, Thurmont, MD 21788
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Building Permits by J.T. Gillis Construction Co LLC
This is a sample of this contractor's permits. Click here to access their complete permit history.
Interior alteration/kitchen remodel: open kitchen by removing dining room & living room walls (non load bearing) update cabinets tops floors & paint and lighting
Valuation:
$14,098
Permit #:
188677
Status:
complete
Fee:
$141
Permit Type:
Resuses
Building Type:
N/A
384 sq. ft. attached open rear deck with steps to grade composite decking/railing frame construction mahlon h. miller jr lot 2
Valuation:
N/A
Permit #:
P2019-0685
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
384 sq. ft. attached open rear deck with steps to grade composite decking/railing frame construction mahlon h. miller jr lot 2
Valuation:
N/A
Permit #:
2019-02941
Status:
complete
Fee:
$118
Permit Type:
N/A
Building Type:
N/A
Addition spiral stairs to existing deck ap# 188670
Valuation:
$6,815
Permit #:
200696
Status:
complete
Fee:
$169
Permit Type:
Resuses
Building Type:
N/A
26 x 24 garage attached by breezeway
Valuation:
$52,300
Permit #:
181977
Status:
complete
Fee:
N/A
Permit Type:
Resuses
Building Type:
N/A
Residential building permit
New mobile home. mobile home was manufactured on 10/26/81. there is a fireplace in the moblie home but it will be removed.|!building permit rescinded until sha approval obtained - 12/22/10/sg|!sha approved review 1/25/11. permit re-issued 1/25/11 - sg
Valuation:
$50,000
Permit #:
87283
Status:
issued
Fee:
N/A
Permit Type:
New
Building Type:
Residential mobil...
Install 24 sq ft 3-step staircase to grade on existing open rear deck frame construction with pressure treated posts composite stair treds and vinyl railing carriage hill section 2 lot 115
Valuation:
N/A
Permit #:
P2016-0166
Status:
complete
Fee:
$82
Permit Type:
N/A
Building Type:
N/A
Install (3) steps to grade (total 24 sq ft) on existing open rear deck frame construction with pressure treated posts composite stair treds and vinyl railing carriage hill section 2 lot 115
Valuation:
N/A
Permit #:
2016-00617
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Construc front & rear stairs 2/3'x3'landings & vinyl siding ***can not be any larger than 3 x 3'***
Valuation:
$3,000
Permit #:
B02135503
Status:
complete
Fee:
$95
Permit Type:
N/A
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
J.T. Gillis Construction Co LLC License info
Verified License
| License # | 106230 |
| Status | Active |
| State | Maryland |
| Type | Home Improvement |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for J.T. Gillis Construction Co LLC at the Maryland Department of Labor, Licensing & Regulation.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | PA156715 |
| Status | Active |
| State | Pennsylvania |
- BuildZoom has not verified this license since May, 2025.
Verify this license's status for J.T. Gillis Construction Co LLC at 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 # | 131006 |
| Status | Active |
| State | Maryland |
| Type | Contractor (Corppart) Home Improvement |
- When BuildZoom last verified this license, it had an expiration date of August, 2015. Check the current license status of J.T. Gillis Construction Co LLC with the Maryland Department of Labor, Licensing & Regulation
This is a sample of licensing data; click here to access a complete history.
90
BuildZoom Score
7
Permits
- Building permit records show that J.T. Gillis Construction Co LLC has worked on 7 permitted projects.
J.T. Gillis Construction Co LLC Employees
JL
J.T. Gillis Construction Co Llc
Owner
JG
Jamie Gillis