Updated: Jun 06, 2026
Location and Projects
Address
1338 DOWNING ST, Denver, CO, 80218
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Celtic Construction Electrician
Celtic Construction Inc, 1338 Downing St, Denver, CO (Owned by: Bradley Seamus) holds a Electrical Contractor license and 17 other licenses according to the Lafayette license board.
Their BuildZoom score of 111 ranks in the top 4% of 55,949 Colorado licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Celtic Construction Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Celtic Construction Inc Contact Information
Phone Number: (303) 472-6961
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Address: 1338 DOWNING ST, Denver, CO 80218
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Celtic Construction Inc Denver
Quality
111
96th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Celtic Construction Inc has a BuildZoom score of 111, which places them above 96% of 55,949 contractors in Colorado.
Activity
|
32 projects
|
2025 |
|
10 projects
|
2024 |
|
16 projects
|
2023 |
Our building permit records indicate that Celtic Construction Inc has worked on at least
58.0 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
|
8 projects
|
New Constructions |
|
3 projects
|
Commercial Renovations |
|
3 projects
|
Home Additions |
|
50 projects
|
Electrical projects |
Analyzing permits over the last 4 years shows that Celtic Construction Inc mostly works on
electrical project
and new construction
projects.
Pricing
|
14 projects
|
< $5k |
|
15 projects
|
$5k-$20k |
|
6 projects
|
$20k-$50k |
|
1 project
|
$50k-$100k |
|
1 project
|
$100k-$250k |
|
1 project
|
$250k-$500k |
|
1 project
|
$1mil+ |
The typical size of their permits is approximately $11,122. 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.
Building Permits by Celtic Construction Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
Emergency panel replacement of an existing conventional notifier fire alarm panel with a new autocall 4007es addressable fire alarm panel. two new zone/relay cards will be installed within the new autocall fire alarm control panel to supervise existing conventional manual pull station and duct detection zones. additionally three contacts of the zone/relay cards will be utilized as nor... see more
Valuation:
$42,000
Permit #:
2025-FIRE-0000649
Status:
final
Fee:
$534
Permit Type:
N/A
Building Type:
N/A
Installation of a new aes radio communicator at 1135 n logan street denver co 80203. the aes radio will be connected to the existing notifier nfw-100x through means of the onboard dact output telephone line. power for the aes radio communicator will be provided by installation of an aes 2524 transformer and extending the fire alarm control panel 120vac circuit. the transformer will st... see more
Valuation:
$1,800
Permit #:
2025-FIRE-0000725
Status:
final
Fee:
$35
Permit Type:
N/A
Building Type:
N/A
New addition including 1-bedroom 1-bathroom garage power & lights & ev charger rough-in. basement area addition washer dryer furnace and area lights. new air conditioning unit on roof
Valuation:
$10,244
Permit #:
2025-ELEC-0003482
Status:
issued
Fee:
$107
Permit Type:
N/A
Building Type:
Single family res...
Ste 350 tenant remodel to include adding 2 doors building 1 wall and knocking down several walls. also upgraded flooring paint millwork countertops and lighting
Valuation:
$375,000
Permit #:
COM-0623-2022
Status:
certificate of completion
Fee:
$5,538
Permit Type:
N/A
Building Type:
N/A
Installation of a new autocall 4007es addressable fire alarm system. system smoke and co detection is being provided in lieu of smoke co alarms for compliance with the low frequency requirements of 2021 ifc §907.5.2.1.3.2. addressable notification is provided throughout the building allowing for temporal 3 and 4 signals and low frequency audibles within the sleeping spaces
Valuation:
$43,467
Permit #:
2024-FIRE-0005653
Status:
issued
Fee:
$558
Permit Type:
N/A
Building Type:
N/A
Installation of a new autocall 4007es addressable fire alarm system. system smoke and co detection is being provided in lieu of smoke co alarms to provide low frequency audible signals not available through current market smoke alarms. addressable notification is provided throughout the building allowing for temporal 3 and 4 signals and low frequency audibles within the sleeping spaces
Valuation:
$32,000
Permit #:
2024-FIRE-0007437
Status:
issued
Fee:
$414
Permit Type:
N/A
Building Type:
N/A
Installation of a new autocall 4007es addressable fire alarm system within the new residential expansion at 1505 e. 16th avenue. the existing building is a non-sprinklered structure that has undergone expansion. the new expansion area is utilized as residential apartments inclusive of ten (10) units. the facility is fully electric and has no fuel fired equipment and the parking carpor... see more
Valuation:
$28,000
Permit #:
2024-FIRE-0005280
Status:
issued
Fee:
$366
Permit Type:
N/A
Building Type:
N/A
1777 lincoln st - skyhouse apts - fire alarm and signaling tenant buildout of an existing est3 addressable fire alarm system. the core & shell retail space on level 2 (open to level 3) is being built-out as new two level apartments. these apartments are are an extension of the total quantity of units within the adjacent residential building. no new units have been designated as type a... see more
Valuation:
$12,500
Permit #:
2024-FIRE-0005282
Status:
issued
Fee:
$185
Permit Type:
N/A
Building Type:
N/A
Emergency panel change out existing facp is down and under fire watch engineered fire alarm drawings and submittal to follow
Valuation:
$42,000
Permit #:
2025-FIRE-0000388
Status:
issued
Fee:
$456
Permit Type:
N/A
Building Type:
N/A
Reconnect new furnace & air conditioning unit to existing branch circuits. install gfi receptacle at exterior for air conditioning unit
Valuation:
$1,579
Permit #:
2025-ELEC-0003699
Status:
issued
Fee:
$35
Permit Type:
N/A
Building Type:
Single family res...
2250 s jason st - masterpiece stairs-mod dwgs 23-elec-9368 increase existing electrical service size to 600 amp. submitting addendum #2 drawings already permitted in log #2023 elect-0009368. the is a change in the grounding electrode conductor material type from al to copper deleting one equipment grounding conductor on feeder a11 and the deletion of the 30 hp motor. the existing faci... see more
Valuation:
N/A
Permit #:
2023-ELEC-0014717
Status:
final
Fee:
$250
Permit Type:
N/A
Building Type:
N/A
2250 s jason st - masterpiece stairs-mod dwgs 23-elec-9368 increase existing electrical service size to 600 amp. submitting addendum #2 drawings already permitted in log #2023 elect-0009368. the is a change in the grounding electrode conductor material type from al to copper deleting one equipment grounding conductor on feeder a11 and the deletion of the 30 hp motor. the existing faci... see more
Valuation:
N/A
Permit #:
2023-LOG-0012861
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Change existing service to 300-amp upgrade grounding electrode system install new feeder to garage panel and connect one new air conditioning unit
Valuation:
$15,000
Permit #:
2025-ELEC-0008328
Status:
issued
Fee:
$139
Permit Type:
N/A
Building Type:
Single family res...
New custom home to be built after marshall fire destroyed the existing home
Valuation:
$1,250,000
Permit #:
RES-3166-2023
Status:
final
Fee:
$19,156
Permit Type:
N/A
Building Type:
N/A
Bedroom finish addition new room approx 288 sqft ass egress window at existing window opening window well (garden level) addition door at opening with new header (see structural eng letter) frame new walls addition new electrical addition insulation addition drywall will tie into the existing basement asdd can lights in the living room and office area new flooring in basement
Valuation:
$10,000
Permit #:
RES-21-00558
Status:
complete
Fee:
$537
Permit Type:
N/A
Building Type:
N/A
Replaced a 70 000 btu furnace 80% with a 2 ton air conditioning 14 seer
Valuation:
N/A
Permit #:
BLDG25-1384
Status:
issued
Fee:
$387
Permit Type:
Furnace and air c...
Building Type:
N/A
Replaced a 110 000 btu furnace 80% & 4 ton air conditioning 17 seer
Valuation:
N/A
Permit #:
RMECH25-00060
Status:
final
Fee:
$623
Permit Type:
Air conditioning ...
Building Type:
N/A
Rework of 120 volt circuit feeding facp to also feed new aes radio
Valuation:
$800
Permit #:
2025-ELEC-0001765
Status:
final
Fee:
$35
Permit Type:
N/A
Building Type:
Commercial
Electric for a swim spa pavilion water feature and hot tub. separate permits for construction will need to be pulled for each structure this permit is for the electrical only
Valuation:
$19,447
Permit #:
B2208275
Status:
complete
Fee:
$517
Permit Type:
N/A
Building Type:
N/A
Replaced a 90 000 btu furnace 80% & 2.5 ton 18 seer heat pum
Valuation:
N/A
Permit #:
BLDG25-1706
Status:
final
Fee:
$536
Permit Type:
Heat pump
Building Type:
N/A
Similar Contractors See more
132
BZ Score
$6.5K
Avg Project
-
Projects
131
BZ Score
$4.8K
Avg Project
-
Projects
135
BZ Score
$8K
Avg Project
-
Projects
Celtic Construction Inc Reviews
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Verified License
BuildZoom confirmed this contractor's license
Celtic Construction Inc License info
License Not Verified
| License # | 25-000269 |
| Status | Active |
| City | Lafayette |
| Type | Electrical Contractor |
- When BuildZoom last verified this license, it had an expiration date of May, 2026. Check the current license status of Celtic Construction Inc with the City of Lafayette
This is a sample of licensing data; click here to access a complete history.
Verified License
| Status | Active |
| City | Denver |
| Type | Building Contractor Class B |
- 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
| Status | Active |
| City | Denver |
| Type | Electrical |
- 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 # | 100890 |
| Status | Active |
| State | Colorado |
| Type | Electrical Contractor |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Celtic Construction Inc at the Colorado Division of Professions and Occupations.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | R120119 |
| Status | Active |
| County | Douglas County |
| Type | Roofing |
- BuildZoom verified this license was active as of July 2025.
Verify this license's status for Celtic Construction Inc at the Douglas County Building Division.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | E170380 |
| Status | Active |
| County | Douglas County |
| Type | Electrical |
- BuildZoom verified this license was active as of July 2025.
Verify this license's status for Celtic Construction Inc at the Douglas County Building Division.
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 October, 2020. Check the current license status of Celtic Construction Inc 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 # | EC.0100890 |
| Status | Active |
| State | Colorado |
| Type | Electrical Contractor |
- When BuildZoom last verified this license, it had an expiration date of September, 2017. Check the current license status of Celtic Construction Inc with the Colorado Division of Professions and Occupations
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | CEN-13-07265 |
| Status | Active |
| City | Centennial |
| Type | General Contractor Class B |
- When BuildZoom last verified this license, it had an expiration date of August, 2016. Check the current license status of Celtic Construction Inc with the Centennial Community Development Contractor Licensing
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | ME-1898 |
| Status | Inactive |
| City | Fort Collins |
| Type | Sub Contractor |
- According to the City of Fort Collins, 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 Celtic Construction Inc at the City of Fort Collins.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | E00920 |
| 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 Celtic Construction Inc at the The City of Littleton, CO.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 2302500 |
| Status | Inactive |
| City | Westminster |
| Type | Electrical 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 Celtic Construction Inc at the City of Westminster, Colorado.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | AEC8787 |
| 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 Celtic Construction Inc at the The City of Arvada, Colorado.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| City | Denver |
- 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 # | 101130006 |
| Status | Inactive |
| City | Westminster |
| Type | General 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 Celtic Construction Inc at the City of Westminster, Colorado.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | NAT-F113654-1 |
| Status | Inactive |
| Nation | Environmental Protection Agency |
| Type | Renovation |
- According to the United States Environmental Protection Agency, 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 Celtic Construction Inc at the United States Environmental Protection Agency.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | LCC2015059982 |
| Status | Inactive |
| City | Thornton |
| Type | Class B Building Contractor |
- 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 Celtic Construction Inc at the Thornton City Development Contractor License.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | AEC5357 |
| 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 Celtic Construction Inc at the The City of Arvada, Colorado.
This is a sample of licensing data; click here to access a complete history.
111
BuildZoom Score
Insured
| Insurer | Bershire Hathaway For Both |
371
Permits
- Building permit records show that Celtic Construction Inc has worked on 371 permitted projects.
Celtic Construction Inc Employees
BS
Bradley Seamus
Owner
CC
Celtic Construction
Limited B
CL
Celtic Electric Llc
JH
James Harvey
JH
Jim Harvey
Owner
SB
Seamus Bradley
TB
Tamara Bradley
Owner