Updated: Jul 01, 2026
Location and Projects
Address
Sun Prairie, WI, 53590
Use our bidding system to
request a quote
Thebco Construction
Since 1976, Thebco Inc has provided window, door, siding, and roofing services to homeowners and businesses throughout the Madison, Wisconsin area and Dane County. This family-owned company specializes in window and siding replacement as well as entry door and patio door installations, handling both residential and commercial projects. Based in Sun Prairie, Thebco has developed and refined its installation methods over decades, making projects efficient and minimally disruptive for clients. Their service area includes Madison and the surrounding neighborhoods. Thebco’s experienced in-house installers manage every phase of the installation process. The company stands out for its longstanding local presence and focus on replacement services, offering a warranty on both products and installation.
Thebco Inc Services
Start a project today:
Thebco Inc Contact Information
Phone Number: (608) 249-4199
Edit
Do you work for this business? Unlock this free profile to update company info and see who's viewing your profile.
Thebco Inc Sun Prairie
Quality
112
97th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Thebco Inc has a BuildZoom score of 112, which places them above 97% of 94,017 contractors in Wisconsin.
Activity
|
268 projects
|
2025 |
|
78 projects
|
2024 |
|
49 projects
|
2023 |
Our building permit records indicate that Thebco Inc has worked on at least
395.0 projects 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.
Experience
|
6 projects
|
Home Additions |
Analyzing permits over the last 4 years shows that Thebco Inc mostly works on
home addition
projects.
Pricing
|
262 projects
|
< $5k |
|
97 projects
|
$5k-$20k |
|
10 projects
|
$20k-$50k |
|
10 projects
|
$50k-$100k |
The typical size of their permits is approximately $3,000. This graph shows the distribution of these job values.
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.
Romoving and replacing 2 double hung windows with a patio door. no change to the header. bringing opening straight down. please see pictures attached customer to have sun room addition to home after door installation
Valuation:
$2,800
Permit #:
BLDRPR-2024-03733
Status:
issued
Fee:
$33
Permit Type:
N/A
Building Type:
1 or 2 family res...
We will be removing and replacing the siding facia soffit and 26 windows. no alterations to any rough openings
Valuation:
$21,975
Permit #:
BLDRPR-2025-02269
Status:
complete
Fee:
$242
Permit Type:
N/A
Building Type:
1 or 2 family res...
Removing and replacing siding soffit facia gutters 1 stdr and 13 windows. no alterations to rough openings
Valuation:
$19,851
Permit #:
BLDRPR-2025-06312
Status:
complete
Fee:
$220
Permit Type:
N/A
Building Type:
1 or 2 family res...
We will be removing and replacing 6 windows and 1 entry door. no alterations to rough openings
Valuation:
$6,461
Permit #:
BLDRPR-2025-00922
Status:
complete
Fee:
$77
Permit Type:
N/A
Building Type:
Commercial
Removing and replacing 3 windows 1 entry door and 1 storm door. no alterations to rough openings
Valuation:
$3,084
Permit #:
BLDRPR-2025-07954
Status:
complete
Fee:
$44
Permit Type:
N/A
Building Type:
1 or 2 family res...
We will be removing and replacing 1 window and 1 entry door. no alterations to rough openings
Valuation:
$1,232
Permit #:
BLDRPR-2025-02271
Status:
complete
Fee:
$25
Permit Type:
N/A
Building Type:
1 or 2 family res...
We are removing and replacing 3 entry doors and 7 windows. no alterations to rough openings
Valuation:
$8,575
Permit #:
BLDRPR-2025-00944
Status:
complete
Fee:
$99
Permit Type:
N/A
Building Type:
1 or 2 family res...
We are removing and replacing 1 patio door and 4 windows. no alterations to rough openings
Valuation:
$5,944
Permit #:
BLDRPR-2025-00942
Status:
complete
Fee:
$66
Permit Type:
N/A
Building Type:
Commercial
We will be removing and replacing 1 patio door and 9 windows. no alterations to rough openings
Valuation:
$4,551
Permit #:
BLDRPR-2025-00155
Status:
complete
Fee:
$55
Permit Type:
N/A
Building Type:
Commercial
Mwot - one and two-family homes minor work permit
2025-03-05
Removing and replacing 16 windows and 1 patio door. no alterations to rough openings
Valuation:
$13,307
Permit #:
MWOT-25-296
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Removing and replacing 14 windows and 1 patio door. no alterations to rough openings
Valuation:
$13,738
Permit #:
BLDRPR-2025-06964
Status:
issued
Fee:
$154
Permit Type:
N/A
Building Type:
1 or 2 family res...
Removing and replacing 2 windows and 1 patio door. no alterations to rough openings
Valuation:
$6,372
Permit #:
BLDRPR-2025-05469
Status:
issued
Fee:
$77
Permit Type:
N/A
Building Type:
1 or 2 family res...
Removing and replacing 8 windows and 2 entry doors. no alterations to rough openings
Valuation:
$11,469
Permit #:
BLDRPR-2025-04617
Status:
complete
Fee:
$132
Permit Type:
N/A
Building Type:
Commercial
Removing and replacing 7 windows and 1 entry door. no alterations to rough openings
Valuation:
$5,545
Permit #:
BLDRPR-2025-04614
Status:
issued
Fee:
$66
Permit Type:
N/A
Building Type:
1 or 2 family res...
Removing and replacing 9 windows and 1 storm door. no alterations to rough openings
Valuation:
$6,994
Permit #:
BLDRPR-2025-03668
Status:
complete
Fee:
$77
Permit Type:
N/A
Building Type:
1 or 2 family res...
Removing and replacing 4 windows and 1 patio door. no alterations to rough openings
Valuation:
$7,012
Permit #:
BLDRPR-2025-03560
Status:
complete
Fee:
$88
Permit Type:
N/A
Building Type:
1 or 2 family res...
Removing and replacing 14 windows and 1 entry door. no alterations to rough openings
Valuation:
$7,407
Permit #:
BLDRPR-2025-03542
Status:
complete
Fee:
$88
Permit Type:
N/A
Building Type:
1 or 2 family res...
Removing and replacing 4 windows and 1 storm door. no alterations to rough openings
Valuation:
$2,773
Permit #:
BLDRPR-2025-07993
Status:
complete
Fee:
$33
Permit Type:
N/A
Building Type:
1 or 2 family res...
Removing and replacing 1 entry door and 1 patio door. no alterations to rough openings
Valuation:
$4,025
Permit #:
BLDRPR-2025-06959
Status:
complete
Fee:
$55
Permit Type:
N/A
Building Type:
Commercial
Removing and replacing 1 entry door and 1 patio door. no alterations to rough openings
Valuation:
$3,090
Permit #:
BLDRPR-2025-03952
Status:
issued
Fee:
$44
Permit Type:
N/A
Building Type:
1 or 2 family res...
Similar Contractors See more
121
BZ Score
$120K
Avg Project
-
Projects
License # 079600022 - DC
Madison, WI
119
BZ Score
$26K
Avg Project
-
Projects
141
BZ Score
$288K
Avg Project
-
Projects
Recent Buildzoom Projects
Hiring a contractor?
Verified License
BuildZoom confirmed this contractor's license
Thebco Inc License info
Verified License
| License # | 051900427 - DC |
| Status | Active |
| City | Wisconsin Rapids |
| Type | Dwelling Contractor, Regular, False |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Thebco Inc at the City of Wisconsin Rapids.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 2624-DCFR |
| Status | Active |
| State | Wisconsin |
| Type | Dwelling Contractor |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Thebco Inc at the Wisconsin Department of Safety and Professional Services.
This is a sample of licensing data; click here to access a complete history.
112
BuildZoom Score
964
Permits
- Building permit records show that Thebco Inc has worked on 964 permitted projects.
Thebco Inc Employees
SB
Steven J Bobeck
Owner
Jason did a wonderful job in the installation of my windows. They arrived on
time, did a great job, cleaned up when the job was completed.