Updated: Jun 04, 2026
Location and Projects
Address
5 BOULDER BROOK RD, Wilton, CT, 06897
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Mark Tiefenthaler Construction
Mark Tiefenthaler, 5 Boulder Brook Rd, Wilton, CT holds a Home Improvement Contractor license according to the Connecticut license board.
Their BuildZoom score of 92 ranks in the top 32% of 12,093 Connecticut licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Mark Tiefenthaler, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Mark Tiefenthaler Services
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Mark Tiefenthaler Contact Information
Address: 5 BOULDER BROOK RD, Wilton, CT 06897
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Mark Tiefenthaler Wilton
Quality
92
68th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Mark Tiefenthaler has a BuildZoom score of 92, which places them above 68% of 12,093 contractors in Connecticut.
Activity
|
1 project
|
2023 |
Our building permit records indicate that Mark Tiefenthaler has worked on at least
1.0 project over the past 3 years.
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-$20k |
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.
This is a sample of this contractor's permits. Click here to access their complete permit history.
Remove wall between kitchen and family room and install beam
Valuation:
$11,000
Permit #:
BLD-2023-02240
Status:
issued
Fee:
$113
Permit Type:
N/A
Building Type:
N/A
Relocate wiring for two outlets on wall
Valuation:
N/A
Permit #:
BLD-2023-02241
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Construct 50'x 110 1 story car wash as per submitted stamped/sealed plans sjs/fsb
Valuation:
$300,000
Permit #:
BLD-1999-58384
Status:
final
Fee:
$3,000
Permit Type:
N/A
Building Type:
N/A
17 x 24 2nd floor dormer for new bedroom and interior renovations to first and second floor. rjy homeowner permit
Valuation:
$25,000
Permit #:
BLD-1997-56304
Status:
final
Fee:
$202
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$63,000
Permit #:
12-39/000 000 BOO1 00
Status:
PERMIT PRINTED
Fee:
$855
Permit Type:
Building permit
Building Type:
N/A
Interior renovations to first floor; remodel kitchen & bathroom sjs
Valuation:
$12,000
Permit #:
BLD-1996-54932
Status:
final
Fee:
$98
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$35,000
Permit #:
12-615/000 000 BOO1 00
Status:
C.O. ISSUED
Fee:
$390
Permit Type:
Building permit
Building Type:
N/A
Install wiring for renovation work homeowner permit
Valuation:
$1,000
Permit #:
BLD-1996-54932-01
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install wiring for renov. homeowner permit
Valuation:
$1,000
Permit #:
BLD-1997-56304-01
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install new zone baseboard heating
Valuation:
$2,200
Permit #:
BLD-1996-54932-02
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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138
BZ Score
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Avg Project
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147
BZ Score
$45K
Avg Project
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Projects
140
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Projects
Mark Tiefenthaler Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Mark Tiefenthaler License info
Verified License
| License # | HIC.0667893 |
| Status | Active |
| State | Connecticut |
| Type | Home Improvement Contractor |
| Date Issued | 04-01-2026 |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Mark Tiefenthaler at the Connecticut Department of Consumer Protection.
This is a sample of licensing data; click here to access a complete history.
92
BuildZoom Score
9
Permits
- Building permit records show that Mark Tiefenthaler has worked on 9 permitted projects.
Mark Tiefenthaler Employees
MT
Mark Tiefenthaler