Updated: Jun 09, 2026
Location and Projects
Address
3939 Kearney St, Denver, CO, 80207
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Tolin Mechanical Systems Company, LLC
Tolin Mechanical Systems Company, LLC, 3939 Kearney St, Denver, CO (Owned by: Mike Clement) holds a D Mechanical license and 14 other licenses according to the Colorado license board.
Their BuildZoom score of 110 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 Tolin Mechanical Systems Company, LLC, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Tolin Mechanical Systems Company, LLC Services
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Tolin Mechanical Systems Company, LLC Contact Information
Phone Number: (303) 455-2825
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Address: 3939 Kearney St, Denver, CO 80207
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Tolin Mechanical Systems Company, LLC Denver
Quality
110
96th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Tolin Mechanical Systems Company, LLC has a BuildZoom score of 110, which places them above 96% of 55,949 contractors in Colorado.
Activity
|
37 projects
|
2025 |
|
3 projects
|
2024 |
|
2 projects
|
2023 |
Our building permit records indicate that Tolin Mechanical Systems Company, LLC has worked on at least
42.0 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
|
3 projects
|
Home Additions |
|
25 projects
|
Mechanical projects |
|
20 projects
|
HVAC projects |
Analyzing permits over the last 4 years shows that Tolin Mechanical Systems Company, LLC mostly works on
mechanical project
and hvac project
projects.
Pricing
|
2 projects
|
< $5k |
|
1 project
|
$5k-$20k |
|
8 projects
|
$20k-$50k |
|
8 projects
|
$50k-$100k |
|
5 projects
|
$100k-$250k |
|
3 projects
|
$250k-$500k |
|
2 projects
|
$500k-$1mil |
The typical size of their permits is approximately $57,500. 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 Tolin Mechanical Systems Company, LLC
This is a sample of this contractor's permits. Click here to access their complete permit history.
- replacing three (3) single-zone packaged rooftop units. - replacing three (3) multi-zone packaged rooftop units. - replacing two (2) hot water heating boilers and two (2) domestic hot water heaters. - converting hot water heating system to variable flow
Valuation:
N/A
Permit #:
PM25-0373
Status:
final
Fee:
N/A
Permit Type:
HVAC equipment
Building Type:
N/A
Replace 3 cabinet unit heaters. replace (38) reheat coils with new vav boxes. install 2 new chw 3 way control valves for ahus. install 2 vfds for ahu supply fans. replace (1) hw circ pump. remove and replace (1) hot water boiler system with 2 new boilers. replace boiler hw pump. addition vfd to hw pump
Valuation:
$321,000
Permit #:
2024-MECH-0000209
Status:
issued
Fee:
$2,008
Permit Type:
N/A
Building Type:
N/A
Hvac equipment replace the condensing unit serving the credit union of colorado. to reuse existing electrical supply. air handler/duct work not being modified or changed. like for like it is a direct replacement existing condensing lines being used
Valuation:
N/A
Permit #:
PM25-4761
Status:
issued
Fee:
N/A
Permit Type:
HVAC equipment
Building Type:
N/A
Hvac equipment replace the condensing unit serving the credit union of colorado. to reuse existing electrical supply. air handler/duct work not being modified or changed. like for like it is a direct replacement existing condensing lines being used
Valuation:
N/A
Permit #:
PM25-4761
Status:
issued
Fee:
N/A
Permit Type:
HVAC equipment
Building Type:
N/A
Replace the four (4) existing 2000 mbh domestic hot water boilers with two (2) new 4000 mbh boilers for the main boiler plant at the manhattan tower. the existing boilers will be replaced with lochinvar armor condensing boilers; additionally installing a new thermostatic mixing station and new aquastat to the existing building recirculation pump
Valuation:
$100,000
Permit #:
2024-BOILERAC-0001020
Status:
final
Fee:
$770
Permit Type:
N/A
Building Type:
N/A
Caci dtc level 3 - 7800 e. union ave tenant improvement of existing office space. scope of work to include demolish and construction with associated struc and mep work. remote terminal unit upgrades
Valuation:
$200,000
Permit #:
2024-PLUMB-0007320
Status:
final
Fee:
$1,330
Permit Type:
N/A
Building Type:
Commercial
Replace 3 cabinet unit heaters. replace (38) reheat coils with new vav boxes. install 2 new chw 3 way control valves for ahus. install 2 vfds for ahu supply fans. replace (1) hw circ pump. remove and replace (1) hot water boiler system with 2 new boilers. replace boiler hw pump. addition vfd to hw pump
Valuation:
$98,000
Permit #:
2024-BOILERAC-0000028
Status:
issued
Fee:
$756
Permit Type:
N/A
Building Type:
N/A
Replace the boiler servicing the credit union of colorado. to reuse existing electrical service flue vent stack and gas line
Valuation:
N/A
Permit #:
PM25-2318
Status:
issued
Fee:
N/A
Permit Type:
HVAC equipment
Building Type:
N/A
The rooftop boiler rooms at each of 1631 emerson st & 1630 clarkson st are undergoing nearly identical boiler and dhw heat exchanger upgrades. this application is for the electrical permits
Valuation:
$32,000
Permit #:
2025-ELEC-0002680
Status:
final
Fee:
$376
Permit Type:
N/A
Building Type:
Commercial
Comercial remodel- mechanical only
Valuation:
$499,823
Permit #:
Q00319
Status:
filed
Fee:
$2,505
Permit Type:
437 (commercial a...
Building Type:
N/A
Caci dtc mods - 7800 e union ave fl 3 modifications to existing permit under original 2024-log-0005116 and 2024-commcon-0001412. changes to arch and mep. no changes in valuations
Valuation:
N/A
Permit #:
2025-MECH-0001081
Status:
final
Fee:
$145
Permit Type:
N/A
Building Type:
Commercial
Caci dtc mods - 7800 e union ave fl 3 modifications to existing permit under original 2024-log-0005116 and 2024-commcon-0001412. changes to arch and mep. no changes in valuations
Valuation:
N/A
Permit #:
2025-BOILERAC-0000113
Status:
final
Fee:
$145
Permit Type:
N/A
Building Type:
Commercial
Boiler replacement
Valuation:
$796,997
Permit #:
P98514
Status:
filed
Fee:
$200
Permit Type:
437 (commercial a...
Building Type:
N/A
Drawing modification to #2024-commcon-0001984. minor changes made to address issues found during the construction effort. all changes detailed in attached narrative letters
Valuation:
N/A
Permit #:
2025-MECH-0001974
Status:
final
Fee:
$145
Permit Type:
N/A
Building Type:
Commercial
Replace humidifier 2-5 with a new humidifier that matches the existing capacity and configuration in order to minimize rework needed to get the system up and running
Valuation:
$3,000
Permit #:
2025-MECH-0000137
Status:
final
Fee:
$143
Permit Type:
N/A
Building Type:
N/A
Boiler upgrade retrofit in a multifamily condominium
Valuation:
$680,000
Permit #:
2024-BOILERAC-0000998
Status:
final
Fee:
$3,865
Permit Type:
N/A
Building Type:
N/A
Vrf system - demolish (2) evap coolers (5) rtus (1) ahu (6) radiators and selective demolish of existing interior duct work. decommission (1) boiler (7) circulation pumps. install - (1) new 600 amp panel and breakers (1) new electric unit heater 1 new cabinet unit heater 1 new erv (greenheck model erch-55-30l-eh-01) provide new duct work for new erv system. install - new erv (erv-20-1... see more
Valuation:
$108,000
Permit #:
2022-ELEC-0012313
Status:
final
Fee:
$915
Permit Type:
N/A
Building Type:
Commercial
Replacing air handler unit building 825
Valuation:
$92,839
Permit #:
P91605
Status:
filed
Fee:
$674
Permit Type:
437 (commercial a...
Building Type:
N/A
Remove and replace one 7.5 ton remote terminal unit with a new dual fuel remote terminal unit of the same size
Valuation:
$28,000
Permit #:
2025-MECH-0006938
Status:
final
Fee:
$244
Permit Type:
N/A
Building Type:
Commercial
Replace the 2 ton and 4 ton roof top units servicing the saia freight building - per contractor both units under 2000 cfm
Valuation:
N/A
Permit #:
PM25-1769
Status:
final
Fee:
N/A
Permit Type:
HVAC equipment
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
Tolin Mechanical Systems Company, LLC License info
Verified License
| License # | MECH-CL-072 |
| Status | Active |
| Type | D Mechanical |
| Date Issued | 11-05-2025 |
- BuildZoom verified this license was active as of March 2026.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | CL4406 |
| Status | Active |
| County | Larimer County, Co |
| Type | Mechanical Commercial |
| Class | Commercial |
| Date Issued | 02-27-2026 |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Tolin Mechanical Systems Company, LLC at the Larimer County.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 3464 |
| Status | Active |
| State | Colorado |
| Type | Electrical Contractor |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Tolin Mechanical Systems Company, 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
| License # | CL-000642-2019 |
| Status | Active |
| City | Centennial |
| Type | Electrical |
| Class | Electrical |
| Date Issued | 08-05-2025 |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Tolin Mechanical Systems Company, LLC at the Centennial Community Development Contractor Licensing.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | CR25-0584 |
| Status | Active |
| Town | Castle Rock |
| Type | Mechanical |
| Date Issued | 08-15-2025 |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Tolin Mechanical Systems Company, LLC at the Castle Rock Town, Colorado.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 1993 |
| Status | Active |
| State | Colorado |
| Type | Plumbing Contractor |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Tolin Mechanical Systems Company, 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
| License # | CL-004408-2024 |
| Status | Active |
| City | Centennial |
| Type | Plumbing |
| Class | Plumbing |
| Date Issued | 12-16-2025 |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Tolin Mechanical Systems Company, LLC at the Centennial Community Development Contractor Licensing.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | CL-006086-2025 |
| Status | Active |
| City | Centennial |
| Type | General |
| Class | HVAC |
| Date Issued | 05-21-2026 |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Tolin Mechanical Systems Company, LLC at the Centennial Community Development Contractor Licensing.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 3464 |
| Status | Active |
| State | Colorado |
| Type | Electrical Contractor |
- When BuildZoom last verified this license, it had an expiration date of September, 2023. Check the current license status of Tolin Mechanical Systems Company, LLC with the Colorado Division of Professions and Occupations
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | E000288 |
| Status | Active |
| City | Aspen |
| Type | Electrical |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Tolin Mechanical Systems Company, LLC at the City of Aspen Contractor Licensing.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | M000144 |
| Status | Active |
| City | Aspen |
| Type | Mechanical |
- When BuildZoom last verified this license, it had an expiration date of April, 2025. Check the current license status of Tolin Mechanical Systems Company, LLC with the City of Aspen Contractor Licensing
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | P000043 |
| Status | Active |
| City | Aspen |
| Type | Plumbing |
- When BuildZoom last verified this license, it had an expiration date of February, 2025. Check the current license status of Tolin Mechanical Systems Company, LLC with the City of Aspen Contractor Licensing
This is a sample of licensing data; click here to access a complete history.
Unverified License
| License # | 17-2354 |
| Status | Unable To Verify |
| Town | Castle Rock |
| Type | Mechanical |
| Date Issued | 08-13-2025 |
- 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 # | CL-22267 |
| Status | Inactive |
| City | Centennial |
| Type | General |
| Class | HVAC |
- According to the Centennial Community Development Contractor Licensing, 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 Tolin Mechanical Systems Company, LLC at the Centennial Community Development Contractor Licensing.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | CL-006084-2025 |
| Status | Inactive |
| City | Centennial |
| Type | General |
| Class | HVAC |
- According to the Centennial Community Development Contractor Licensing, 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 Tolin Mechanical Systems Company, LLC at the Centennial Community Development Contractor Licensing.
This is a sample of licensing data; click here to access a complete history.
110
BuildZoom Score
Insured
| Insurer | Greenwich |
Insured
| Workers Comp Provider | Xl Insurance |
49
Permits
- Building permit records show that Tolin Mechanical Systems Company, LLC has worked on 49 permitted projects.
Tolin Mechanical Systems Company, LLC Employees
EF
Eric Fleming
Licensee
MC
Mike Clement
Owner
RC
Rachel Calkins
Contact
TC
Tolin Mechanical Systems Company
TL
Tolin Mechanical Systems Company, Llc