Updated: Jul 07, 2026
Location and Projects
Address
12550 SWANSEA DR., Englewood, CO, 80110
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Air Systems HVAC/Mechanical Contractor
Air Systems Inc, 12550 Swansea Dr, Englewood, CO (Employee: Castle Gilliland) holds a Contractor license and 16 other licenses according to the Parker license board.
Their BuildZoom score of 108 ranks in the top 5% of 55,949 Colorado licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Air Systems Inc, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Air Systems Inc Contact Information
Phone Number: (303) 506-4826
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Address: 12550 SWANSEA DR., Englewood, CO 80110
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Air Systems Inc Englewood
Quality
108
95th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Air Systems Inc has a BuildZoom score of 108, which places them above 95% of 55,949 contractors in Colorado.
Activity
|
1 project
|
2025 |
|
3 projects
|
2024 |
|
5 projects
|
2023 |
Our building permit records indicate that Air Systems Inc has worked on at least
9.0 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
|
5 projects
|
Mechanical projects |
|
5 projects
|
HVAC projects |
Analyzing permits over the last 4 years shows that Air Systems Inc mostly works on
hvac project
and mechanical project
projects.
Pricing
|
1 project
|
$20k-$50k |
|
3 projects
|
$250k-$500k |
|
2 projects
|
$500k-$1mil |
|
2 projects
|
$1mil+ |
The typical size of their permits is approximately $371,846. 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.
Minor alteration to existing conference space to convert to new boardroom. non-structural renovation to included minor modification of mep/fp and misc. finishes. job contact: jessica ostoyich 303-929-9873
Valuation:
$274,730
Permit #:
B2506141
Status:
issued
Fee:
$9,203
Permit Type:
N/A
Building Type:
N/A
Tenant finish of 4615 sq ft to consist of a new lab building out. exterior changes to include new remote terminal unit. no changes to building sq ft or occupancy. job contact: jake lutovsky (720) 402 -8145
Valuation:
$1,500,000
Permit #:
B2407640
Status:
complete
Fee:
$92,041
Permit Type:
N/A
Building Type:
N/A
301 w 6th ave - denver health pavillion g-imaging dept-tenant finish 4 600 sf remodel of an existing imaging department in the basement level of pavilion g on the denver health campus. scope of work involves: - demolition - new construction [walls casework d/f/h] - new finishes [flooring paint ceilings wall accessories] - mechanical - electrical
Valuation:
$312,124
Permit #:
2022-MECH-0002243
Status:
final
Fee:
$1,963
Permit Type:
N/A
Building Type:
Commercial
Tenant finish of 11248 square feet for advanced energy for office space. will include electrical plumbing and mechanical. owner authorization on file. job contact: joe whitmore 970-702-1540
Valuation:
$2,200,000
Permit #:
B2202567
Status:
complete
Fee:
$63,949
Permit Type:
N/A
Building Type:
N/A
***12/27/2021 revision to remove 4, 098 sq ft cafeteria from scope of work (will complete on a separate permit at a later time). tenant remodel of 23, 900 sf for advanced energy to include the new open offices spaces private offices conference spaces and break area. the restrooms will also be renovated. job contact - klay adair - 805-305-1390
Valuation:
$3,377,429
Permit #:
B2108322
Status:
complete
Fee:
$105,664
Permit Type:
N/A
Building Type:
N/A
The project is roughly 7 150 sf of interior remodel to denver health and hospital authority's (dhha) interventional radiology (ir) department on the first floor of pavilion a
Valuation:
$530,000
Permit #:
2020-MECH-0003839
Status:
final
Fee:
$3,153
Permit Type:
N/A
Building Type:
N/A
Interior and exterior build-out of existing space for new target store. scope includes but is not limited to demolition for reconfiguration of new interior partitions new finishes new store fixtures lighting updates and addition of new vertical conveyance
Valuation:
N/A
Permit #:
2021-MECH-0003129
Status:
final
Fee:
$145
Permit Type:
N/A
Building Type:
N/A
Interior and exterior build-out of existing space for new target store. scope includes but is not limited to demolition for reconfiguration of new interior partitions new finishes new store fixtures lighting updates and addition of new vertical conveyance
Valuation:
$75,000
Permit #:
2020-MECH-0010708
Status:
final
Fee:
$595
Permit Type:
N/A
Building Type:
N/A
New arena & event center (superstructure only) national western center stockyards & event center 5004 packing house road
Valuation:
$678,600
Permit #:
2019-MECH-0012805
Status:
final
Fee:
$3,860
Permit Type:
N/A
Building Type:
Commercial
Demolish existing rooftop and associated ductwork. install through wall heaters in attendant booths
Valuation:
$40,810
Permit #:
2024-MECH-0007882
Status:
issued
Fee:
$348
Permit Type:
N/A
Building Type:
Garage
Work includes selective demolition of existing pathology department to allow construction of surgery department storage (for adjacent suite) and renovation of pathology department to right size for better process flow. limited exterior work includes exhaust fan replacement in place
Valuation:
$40,000
Permit #:
2020-MECH-0002773
Status:
final
Fee:
$840
Permit Type:
N/A
Building Type:
N/A
The work consists of two single-story commercial core-and-shell buildings and landscaping as shown in drawings (intended future tenant use- restaurants)
Valuation:
N/A
Permit #:
2020-MECH-0006534
Status:
final
Fee:
$20
Permit Type:
N/A
Building Type:
N/A
The work consists of two single-story commercial core-and-shell buildings and landscaping as shown in drawings (intended future tenant use- restaurants)
Valuation:
$100,000
Permit #:
2020-MECH-0001082
Status:
final
Fee:
$770
Permit Type:
N/A
Building Type:
N/A
Minor interior remodel consisting of new registration casework layout and remodeled staff area. approximately 1 189 sf of work
Valuation:
$20,000
Permit #:
2022-MECH-0010414
Status:
final
Fee:
$179
Permit Type:
N/A
Building Type:
N/A
The work consists of two single-story commercial core-and-shell buildings and landscaping as shown in drawings (intended future tenant use- restaurants)
Valuation:
N/A
Permit #:
2020-MECH-0007039
Status:
final
Fee:
$20
Permit Type:
N/A
Building Type:
N/A
93 n quebec - target-tenant finish-retail/grocery existing core and shell
Valuation:
$100,000
Permit #:
2021-MECH-0001885
Status:
final
Fee:
$770
Permit Type:
N/A
Building Type:
Commercial
Interior remodel of existing target store
Valuation:
N/A
Permit #:
BLDG21-6295
Status:
final
Fee:
$29,066
Permit Type:
Building
Building Type:
N/A
Centennial pool replace damaged equipment
Valuation:
$196,790
Permit #:
B201807336
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
711 w 31st ave - remodel - rtd
Valuation:
$410,661
Permit #:
2019-MECH-0000045
Status:
final
Fee:
$2,512
Permit Type:
N/A
Building Type:
N/A
Interior remodel of existing space odyssey exhibit denver museum of nature & science 2001 colorado blvd
Valuation:
$65,908
Permit #:
2020-MECH-0001432
Status:
final
Fee:
$532
Permit Type:
N/A
Building Type:
Commercial
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Verified License
BuildZoom confirmed this contractor's license
Air Systems Inc License info
Verified License
| License # | AEC3154 |
| Status | Active |
| Town | Parker |
| Type | Contractor |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Air Systems Inc at the The Town of Parker, Colorado.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | MA00041 |
| Status | Active |
| County | Douglas County |
| Type | Mechanical A |
- BuildZoom verified this license was active as of August 2025.
Verify this license's status for Air Systems 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 |
| County | Jefferson County |
| Type | Class A Mechanical (Unrestricted) |
| Class | Unrestricted |
- When BuildZoom last verified this license, it had an expiration date of December, 2023. Check the current license status of Air Systems Inc with the Jefferson County Licensed Contractors
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | LIC-0004189 |
| Status | Active |
| City | Boulder |
| Type | Mechanical |
| Class | Class A All UMC Work |
- When BuildZoom last verified this license, it had an expiration date of December, 2018. Check the current license status of Air Systems Inc with the Boulder Licensing Board
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 26462 |
| Status | Active |
| City | Thornton |
| Type | Mechanical |
- When BuildZoom last verified this license, it had an expiration date of May, 2017. Check the current license status of Air Systems Inc with the Thornton City Development Contractor License
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 0004189 |
| Status | Active |
| City | Boulder |
| Type | Mechanical Class A All Umc Work |
- When BuildZoom last verified this license, it had an expiration date of May, 2017. Check the current license status of Air Systems Inc with the Boulder Licensing Board
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 7M-0095 |
| Status | Active |
| City | Arvada |
| Type | Bid Contractor, Mechanical |
- When BuildZoom last verified this license, it had an expiration date of May, 2017. Check the current license status of Air Systems Inc 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 # | 24567 |
| Status | Active |
| City | Thornton |
| Type | Mechanical |
- When BuildZoom last verified this license, it had an expiration date of May, 2017. Check the current license status of Air Systems Inc with the Thornton City Development Contractor License
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | AEC3154 |
| 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 Air Systems 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 |
| Type | H & V 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
| Status | Inactive |
| City | Aurora |
| Type | Mechanical Systems Contractor |
- According to the Aurora, 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.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | LIC-0004189-MECHA |
| Status | Inactive |
| City | Boulder |
| Type | Mechanical |
| Class | Class A All Mechanical Work |
- 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 Air Systems Inc at the Boulder Licensing Board.
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 # | 060630119 |
| 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 Air Systems Inc at the City of Westminster, Colorado.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | D11016 |
| 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 Air Systems 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 # | LCC2015007425 |
| Status | Inactive |
| City | Thornton |
| Type | Class D Mechanical |
- 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 Air Systems 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 # | H-1409 |
| 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 Air Systems Inc at the City of Fort Collins.
This is a sample of licensing data; click here to access a complete history.
108
BuildZoom Score
Insured
| Insurer | Union Insurance Co/Pinnacol Assurance |
224
Permits
- Building permit records show that Air Systems Inc has worked on 224 permitted projects.
Air Systems Inc Employees
AS
Air Systems
Owner
AI
Air Systems Inc
Mechanical
CG
Castle Gilliland
MP
Mark Prenni
Owner
RF
Richard Fling
Owner
RF
Richard G Fling
Owner
RK
Rick Kastle
Owner
RK
Robert Kastle
Owner