Updated: May 30, 2026
Location and Projects
Address
12 W Main St, Thurmont, MD, 21788
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Seiss Construction Co Inc
Seiss Construction Co Inc, 12 W Main St, Thurmont, MD (Owned by: Gary Lee Seiss) holds a Home Improvement license and 2 other licenses according to the Maryland license board.
Their BuildZoom score of 91 ranks in the top 37% of 58,058 Maryland licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Seiss Construction Co Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Seiss Construction Co Inc Services
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Seiss Construction Co Inc Contact Information
Phone Number: (301) 271-4135
Address: 12 W Main St, Thurmont, MD 21788
Seiss Construction Co Inc Thurmont
Quality
91
63rd percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Seiss Construction Co Inc has a BuildZoom score of 91, which places them above 63% of 58,058 contractors in Maryland.
Activity
|
1 project
|
2025 |
Our building permit records indicate that Seiss Construction Co Inc has worked on at least
1.0 project over the past year.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
Pricing
|
1 project
|
< $5k |
Pro tip:
For more details about their pricing, check out their recent activity to see how much they have charged for different types of work.
Building Permits by Seiss Construction Co Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
<div>add 26x28 2-car garage w/mudroom and 25x28 new living area. new addition on crawl space. new l-shape deck and front porch on new addition.<br></div><div><div>existing kitchen to become new master bedroom and bathroom</div></div><div>2/27/20 intake septic location drawing (scw)</div><div>*revision 3/4/20 (lr) removing 2 bedrooms upstairs per the health department.*</div>
Valuation:
$200,000
Permit #:
266594
Status:
complete
Fee:
N/A
Permit Type:
Resuses
Building Type:
N/A
Demolish existing sunroom and deck; replace with 14 x 14 sunroom and 16 x 14 deck w steps
Valuation:
$60,000
Permit #:
195068
Status:
complete
Fee:
$375
Permit Type:
Resuses
Building Type:
N/A
Unattached garage to left of dwelling
Valuation:
$60,000
Permit #:
11510
Status:
complete
Fee:
$145
Permit Type:
Resuses
Building Type:
N/A
Partially finish basement; construct 5 x 8 bathroom
Valuation:
$16,000
Permit #:
195070
Status:
complete
Fee:
$141
Permit Type:
Resuses
Building Type:
N/A
Alteration of unfinished basement to family room and bathroom
Valuation:
$18,000
Permit #:
177819
Status:
complete
Fee:
N/A
Permit Type:
Resuses
Building Type:
N/A
13 x 9 sunroom; replaces existing 6 x 4 deck
Valuation:
$30,000
Permit #:
177820
Status:
complete
Fee:
N/A
Permit Type:
Resuses
Building Type:
N/A
Gutting the interior of the house repair replace drywall as needed upgrade electrical and plumbing. there will be no change in the existing floor plan
Valuation:
$165,000
Permit #:
154281
Status:
Permit Issued
Fee:
$137
Permit Type:
Alteration
Building Type:
Single family dwe...
Residential building uses permit
Addition 18x20 1-level on crawl space for home office and full bath; screen in existing 12x20 porch
Valuation:
$63,000
Permit #:
133290
Status:
issued
Fee:
N/A
Permit Type:
Addition
Building Type:
Single family dwe...
Fire damage; re-build ex porch; replace all electrical plumbing hvac insulation & drywall
Valuation:
$87,000
Permit #:
190219
Status:
complete
Fee:
$141
Permit Type:
Resuses
Building Type:
N/A
Demolition of existing dwelling will rebuild new dwelling on seperate permit replacement dwg ap# 139779
Valuation:
$15,000
Permit #:
139776
Status:
complete
Fee:
$170
Permit Type:
Demolition
Building Type:
N/A
Residential building uses permit
Basement finish; to include; family room & full bathroom
Valuation:
$20,000
Permit #:
169078
Status:
issued
Fee:
N/A
Permit Type:
Alteration
Building Type:
Single family dwe...
Residential building uses permit
Taking existing carport and enclosing to make a garage w/mud room and enlarging the existing dining area. not increasing the footprint of the house
Valuation:
$27,000
Permit #:
94995
Status:
issued
Fee:
N/A
Permit Type:
Alteration
Building Type:
Single family dwe...
Addition permit for a 1 sty addition w/unfin basement & a new entry way into the dwg addition to be a family room new kitchen & converting ex. kitchen into a dining room
Valuation:
$120,000
Permit #:
9301
Status:
issued
Fee:
N/A
Permit Type:
Addition
Building Type:
Single family dwe...
Residential building uses permit
Construction of 14x18 addition for new kitchen over full unfinished basement; reconfigure 1st floor to expand dining area|*revision - 09.11.2017 - revised setbacks; revised finished area & overall square footage; removed basement from plans*slc
Valuation:
$80,000
Permit #:
163759
Status:
issued
Fee:
N/A
Permit Type:
Addition
Building Type:
Single family dwe...
Residential building uses permit
Removing an existing shed. 18x24 detached garage
Valuation:
$15,000
Permit #:
135144
Status:
issued
Fee:
N/A
Permit Type:
Accessory
Building Type:
Single family dwe...
Residential building uses permit
Basement finish
Valuation:
$27,000
Permit #:
160280
Status:
issued
Fee:
N/A
Permit Type:
Alteration
Building Type:
Single family dwe...
Residential building uses permit
Laundry & garage addition
Valuation:
$35,000
Permit #:
123302
Status:
issued
Fee:
N/A
Permit Type:
Addition
Building Type:
Single family dwe...
22x15 1 car garage & a 24x24 2 story addition.|*1st 90 day extension 90 days from today per pam - ldh 04/29/08
Valuation:
$150,000
Permit #:
35368
Status:
issued
Fee:
N/A
Permit Type:
Addition
Building Type:
Single family dwe...
In building a unit #2: addition 2 interior walls to form 1 office;balance of space is open space: related permit #b03-1950 tenant occupancy requires separate permit
Valuation:
$1,600
Permit #:
7712
Status:
Complete
Fee:
$212
Permit Type:
Alteration
Building Type:
Non residential m...
Residential building permit
New dwg. w/unfin basement. w/front stoop;|existing entrance since 1944;|revised grading info 8/26/2005 lw
Valuation:
$310,000
Permit #:
25489
Status:
issued
Fee:
N/A
Permit Type:
New
Building Type:
Single family dwe...
Seiss Construction Co Inc Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Seiss Construction Co Inc License info
Verified License
| License # | 45750 |
| Status | Active |
| State | Maryland |
| Type | Home Improvement |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Seiss Construction Co Inc 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 # | 49166 |
| Status | Active |
| State | Maryland |
| Type | Heating, Ventilation, Air Conditioning And Refrigeration |
| Class | Heating, Ventilation, Air Conditioning and Refrigeration |
- When BuildZoom last verified this license, it had an expiration date of December, 2018. Check the current license status of Seiss Construction Co Inc with 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 # | 64253 |
| Status | Active |
| State | Maryland |
- When BuildZoom last verified this license, it had an expiration date of May, 2014. Check the current license status of Seiss Construction Co Inc with the Maryland Department of Labor, Licensing & Regulation
This is a sample of licensing data; click here to access a complete history.
91
BuildZoom Score
181
Permits
- Building permit records show that Seiss Construction Co Inc has worked on 181 permitted projects.
Seiss Construction Co Inc Employees
DS
David Wayne Seiss
Owner
GS
Gary Lee Seiss
Owner
TS
Thomas J. Seiss
Owner