Updated: Jun 23, 2026
Location and Projects
Address
2980 S CEYLON ST, Aurora, CO, 80013
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Semi Construction Plumber
Semi Construction LLC, 2980 S Ceylon St, Aurora, CO (Owned by: Semingsen Donald) holds a Plumbing license and 16 other licenses according to the Castle Rock license board.
Their BuildZoom score of 102 ranks in the top 11% of 55,949 Colorado licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Semi Construction LLC, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Semi Construction LLC Services
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Semi Construction LLC Contact Information
Phone Number: (303) 880-5524
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Address: 2980 S CEYLON ST, Aurora, CO 80013
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Semi Construction LLC Aurora
Quality
102
89th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Semi Construction LLC has a BuildZoom score of 102, which places them above 89% of 55,949 contractors in Colorado.
Activity
|
1 project
|
2025 |
|
3 projects
|
2024 |
|
2 projects
|
2023 |
Our building permit records indicate that Semi Construction LLC has worked on at least
6.0 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
|
4 projects
|
Plumbing projects |
Analyzing permits over the last 4 years shows that Semi Construction LLC mostly works on
plumbing project
projects.
Pricing
|
1 project
|
< $5k |
|
1 project
|
$20k-$50k |
|
1 project
|
$100k-$250k |
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 Semi Construction LLC
This is a sample of this contractor's permits. Click here to access their complete permit history.
1550 wewatta st #105 - urban egg - chg of occupancy - tenant finish the development of a new 2 947-square-foot full-service breakfast brunch and lunch restaurant within the triangle building located at 1550 wewatta ste 105. current use of the space is vacant warm vanilla shell. project will include installation of new walls wall finishes floor finishes and mechanical electrical and pl... see more
Valuation:
N/A
Permit #:
2024-SUDP-0003893
Status:
approved
Fee:
$725
Permit Type:
Alteration
Building Type:
N/A
Work is an interior remodel only of an existing restaurant space. the scope is limited to the kitchen only no work in restrooms dining room or bar. project is under the same owner but different menu and business name
Valuation:
$5,000
Permit #:
2024-PLUMB-0006337
Status:
final
Fee:
$59
Permit Type:
N/A
Building Type:
N/A
Tenant improvements for a milan laser office in a previously occupied lease space. includes interior design electrical existing mechanical and plumbing
Valuation:
$118,203
Permit #:
CEN-22-00020
Status:
complete
Fee:
$3,556
Permit Type:
N/A
Building Type:
N/A
3700 n quebec #101-milan laser hair removal-chg of occupancy-tenant finish tenant improvements for a new milan laser office in a previously occupied lease space. includes interior design electrical existing mechanical and plumbing
Valuation:
$7,500
Permit #:
2022-PLUMB-0003481
Status:
final
Fee:
$83
Permit Type:
N/A
Building Type:
N/A
Xcel red tagged for multiple leaks. replace existing sch 40 bi with new csst counterstrike track for 1 water heater 38 000 btu 1 furnance 90 000 btw and 1 gas range 75 000 btu. 50% max developed length
Valuation:
$2,000
Permit #:
2020-PLUMB-0005203
Status:
final
Fee:
$35
Permit Type:
N/A
Building Type:
Single family res...
Repair fire damaged framing roofing concrete work interior finishes. repair fire damaged electrical service change. repair fire damaged mechanical replace furnace. repair fire damaged plumbing
Valuation:
$132,000
Permit #:
BDP18-4882
Status:
issued
Fee:
$2,064
Permit Type:
Repair
Building Type:
Residential
Code ninja tenant improvement
Valuation:
$115,000
Permit #:
20-3723
Status:
final
Fee:
$4,991
Permit Type:
Remodel ten. Finish
Building Type:
N/A
Commercial interior remodel
Valuation:
$19,300
Permit #:
O26334
Status:
final
Fee:
$100
Permit Type:
437 (commercial a...
Building Type:
N/A
Rs - custom
Valuation:
N/A
Permit #:
23-01085
Status:
plancheck
Fee:
N/A
Permit Type:
New
Building Type:
Residential
Water heater replacement
Valuation:
$5,800
Permit #:
O36169
Status:
final
Fee:
$100
Permit Type:
437 (commercial a...
Building Type:
N/A
Run 80 feet of 3/4 pb to new building accessory fireplace
Valuation:
$850
Permit #:
2021-PLUMB-0010700
Status:
final
Fee:
$35
Permit Type:
N/A
Building Type:
Single family res...
Water heater replacement
Valuation:
$3,000
Permit #:
O03620
Status:
final
Fee:
$50
Permit Type:
437 (commercial a...
Building Type:
N/A
Water heater replacement
Valuation:
$3,000
Permit #:
O03619
Status:
final
Fee:
$50
Permit Type:
437 (commercial a...
Building Type:
N/A
Rs - residential
Valuation:
$35,000
Permit #:
24-02370
Status:
issued
Fee:
$987
Permit Type:
Alteration
Building Type:
Residential
Drain for future shower no valve
Valuation:
$9,500
Permit #:
2019-PLUMB-0007114
Status:
final
Fee:
$99
Permit Type:
N/A
Building Type:
N/A
Milan laser tenant improvement plumbing
Valuation:
N/A
Permit #:
PLUM22-0032
Status:
final
Fee:
$301
Permit Type:
Commercial sub co...
Building Type:
N/A
Pressure test of existing gas system after auto impact
Valuation:
N/A
Permit #:
BLDG19-7731
Status:
issued
Fee:
$24
Permit Type:
plumbing
Building Type:
N/A
Pressure test existing gas system after auto impact
Valuation:
N/A
Permit #:
BLDG19-7730
Status:
issued
Fee:
$24
Permit Type:
plumbing
Building Type:
N/A
Cm - tenant finish
Valuation:
N/A
Permit #:
20-09035
Status:
plancheck
Fee:
N/A
Permit Type:
Alteration
Building Type:
Commercial
(1) new lavatory (1) 3-comp sink (1) floor sink water heater replacement-30 gallons
Valuation:
$3,000
Permit #:
1360744
Status:
issued
Fee:
$130
Permit Type:
plumbing permit
Building Type:
N/A
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Semi Construction LLC Reviews
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Verified License
BuildZoom confirmed this contractor's license
Semi Construction LLC License info
Verified License
| License # | CR26-0311 |
| Status | Active |
| Town | Castle Rock |
| Type | Plumbing |
| Date Issued | 04-02-2026 |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Semi Construction LLC at the Castle Rock Town, Colorado.
This is a sample of licensing data; click here to access a complete history.
Verified License
| Status | Active |
| City | Denver |
| Type | Plbg A |
- BuildZoom verified this license was active as of June 2026.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 2287 |
| Status | Active |
| State | Colorado |
| Type | Plumbing Contractor |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Semi Construction LLC at the Colorado Division of Professions and Occupations.
This is a sample of licensing data; click here to access a complete history.
Verified License
| Status | Active |
| City | Aurora |
| Type | Plumbing |
- BuildZoom verified this license was active as of June 2026.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | AEC1396 |
| Status | Active |
| Town | Parker |
| Type | Contractor |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Semi Construction LLC at the The Town of Parker, Colorado.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| Status | Active |
| City | Denver |
- When BuildZoom last verified this license, it had an expiration date of March, 2021. Check the current license status of Semi Construction LLC with the City and County of Denver Community Planning and Development
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 1396 |
| Status | Active |
| Town | Parker |
| Type | Contractor, Plumbing |
- When BuildZoom last verified this license, it had an expiration date of February, 2019. Check the current license status of Semi Construction LLC with the The Town of Parker, Colorado
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 1457 |
| Status | Active |
| City | Arvada |
| Type | Bid Contractor, Plumbing |
- When BuildZoom last verified this license, it had an expiration date of February, 2019. Check the current license status of Semi Construction LLC with the The City of Arvada, Colorado
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | PC.0002287 |
| Status | Active |
| State | Colorado |
| Type | Plumbing Contractor |
- When BuildZoom last verified this license, it had an expiration date of February, 2019. Check the current license status of Semi Construction LLC with the Colorado Division of Professions and Occupations
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | AEC1457 |
| Status | Inactive |
| City | Arvada |
| Type | Contractor |
- According to the The City of Arvada, Colorado, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Semi Construction LLC at the The City of Arvada, Colorado.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | P00590 |
| Status | Inactive |
| City | Littleton |
| Type | Contractor |
- According to the The City of Littleton, CO, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Semi Construction LLC at the The City of Littleton, CO.
This is a sample of licensing data; click here to access a complete history.
Unverified License
| License # | 20-3984 |
| Status | Unable To Verify |
| Town | Castle Rock |
| Type | Plumbing |
- BuildZoom was not able to verify this license with the licensing board
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | LIC-0009525-PLBG |
| Status | Inactive |
| City | Boulder |
| Type | Plumbing |
| Class | Plumbing |
- According to the Boulder Licensing Board, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Semi Construction LLC at the Boulder Licensing Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 140831052 |
| Status | Inactive |
| City | Westminster |
| Type | Plumbing Contractor |
- According to the City of Westminster, Colorado, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Semi Construction LLC at the City of Westminster, Colorado.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | P110280 |
| Status | Inactive |
| County | Douglas County |
| Type | Plumbing |
- According to the Douglas County Building Division, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Semi Construction LLC at the Douglas County Building Division.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| City | Denver |
| Type | General Contractor Class A |
- According to the City and County of Denver Community Planning and Development, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | LCC2015061408 |
| Status | Inactive |
| City | Thornton |
| Type | Class D Plumbing |
- According to the Thornton City Development Contractor License, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Semi Construction LLC at the Thornton City Development Contractor License.
This is a sample of licensing data; click here to access a complete history.
102
BuildZoom Score
Insured
| Insurer | Acadia Ins Co |
Insured
| Workers Comp Provider | Twin City Fire Ins Co |
55
Permits
- Building permit records show that Semi Construction LLC has worked on 55 permitted projects.
Semi Construction LLC Employees
AS
Adam Semingsen
DS
Donald Semingsen
SD
Semingsen Donald
Owner
SL
Sgt. Semi. Llc
SS
Stephanie Semingsen
Manager