Updated: Jun 23, 2026
Location and Projects
Address
114 W. RIO GRANDE ST., Colorado Springs, CO, 80903
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Energy Resource Center HVAC/Mechanical Contractor
Energy Resource Center, 114 W Rio Grande St, Colorado Springs, CO (Employees: Aaron Martinez, Bill Froehlich, and Connor Vaughn) holds a Multiple Trade license and 27 other licenses according to the Castle Rock license board.
Their BuildZoom score of 113 ranks in the top 3% of 55,949 Colorado licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Energy Resource Center, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Energy Resource Center Contact Information
Phone Number: (720) 589-6659
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Address: 114 W. RIO GRANDE ST., Colorado Springs, CO 80903
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Energy Resource Center Colorado Springs
Quality
113
97th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Energy Resource Center has a BuildZoom score of 113, which places them above 97% of 55,949 contractors in Colorado.
Activity
|
1 project
|
2026 |
|
430 projects
|
2025 |
|
416 projects
|
2024 |
|
325 projects
|
2023 |
Our building permit records indicate that Energy Resource Center has worked on at least
1172.0 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
|
145 projects
|
Home Additions |
|
688 projects
|
HVAC projects |
|
608 projects
|
Mechanical projects |
Analyzing permits over the last 4 years shows that Energy Resource Center mostly works on
hvac project
and mechanical project
projects.
Pricing
|
1003 projects
|
< $5k |
|
29 projects
|
$5k-$20k |
|
2 projects
|
$20k-$50k |
The typical size of their permits is approximately $2,500. 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 Energy Resource Center
This is a sample of this contractor's permits. Click here to access their complete permit history.
Replace existing exhaust fan in bathroom with new ashrae fan. make the existing roof penetration larger and install new vent hood. install new rigid duct between fan and penetration and insulate the duct. new power switch to separate the fan from bathroom lighting. job contact: bill froehlich 970-617-2806
Valuation:
$877
Permit #:
B2502381
Status:
complete
Fee:
$105
Permit Type:
N/A
Building Type:
N/A
Replace existing bathroom exhaust fan with ashrae fan. increase the size of the existing roof penetration and install a new vent hood over it. install rigid duct between fan and roof penetration. insulate the ductwork. no new electrical work needed. job contact: bill froehlich 970.617.2806
Valuation:
$377
Permit #:
B2502349
Status:
issued
Fee:
$105
Permit Type:
N/A
Building Type:
N/A
Replace existing bathroom fan with a new ashrae fan make a new roof penetration and install a new vent hood over it and install new rigid duct between the new fan and roof penetration. insulate the new duct work. new switch to separate fan from the bathroom lights. job contact: bill froehlich 970-617-2806
Valuation:
$877
Permit #:
B2502230
Status:
complete
Fee:
$105
Permit Type:
N/A
Building Type:
N/A
Replace existing bathroom fan with a new ashrae fan make a new roof penetration and install a new vent hood over it and install new rigid duct between the new fan and roof penetration. insulate the new duct work. new switch to separate fan from the bathroom lights. job contact: bill froehlich 970-617-2806
Valuation:
$877
Permit #:
B2502185
Status:
issued
Fee:
$105
Permit Type:
N/A
Building Type:
N/A
Replace existing exhaust fan in kitchen with new ashrae fan. install new vent hood over existing penetration on east exterior wall. install flex duct with insulation between fan and termination. no new electrical work required. job contact: bill froehlich 970-617-2806
Valuation:
$344
Permit #:
B2502179
Status:
complete
Fee:
$114
Permit Type:
N/A
Building Type:
N/A
Replace existing exhaust fan in bathroom with new ashrae fan. make the existing roof penetration larger and install new vent hood. install new rigid duct between fan and penetration and insulate the duct. new power switch to separate the fan from bathroom lighting. job contact: bill froehlich 970-617-2806
Valuation:
$877
Permit #:
B2502177
Status:
canceled
Fee:
$128
Permit Type:
N/A
Building Type:
N/A
Replace existing bathroom vent fan with new ashrae ventilator. a new roof penetration will be made in the roof ad new vent hood will be installed over it. rigid pipe duct work will be installed and insulated. new power switch to separate the ventilator power circuit from the bathroom lighting circuit. job contact: bill froehlich 970-617-2806
Valuation:
$911
Permit #:
B2501945
Status:
complete
Fee:
$128
Permit Type:
N/A
Building Type:
N/A
Install a new ashrae ventilator fan below cabinets in laundry room. install flex duct through exterior south wall of laundry room and install a new vent hood over the penetration. eggers electric will install a new 110v receptacle for the ventilator to plug in to. job contact: bill froehlich 970.617.2806
Valuation:
$520
Permit #:
B2501388
Status:
complete
Fee:
$118
Permit Type:
N/A
Building Type:
N/A
Install new ashrae ventilator fan in north bedroom and vent exhaust through the north of the north bedroom. no new electrical work required. new wall bent hood installed over new wall penetration on north exterior wall. job contact: bill froehlich 970-617-2806
Valuation:
$220
Permit #:
B2500920
Status:
complete
Fee:
$111
Permit Type:
N/A
Building Type:
N/A
3-20-2025 revision submitted: made new penetration for th new fan's ductwork in the north gable end instead of the roof due to ice and snow on roof at time of installation. replace existing vent fan in north 2nd floor bathroom with a new ashrae ventilator fan and install hard pipe ductwork through new roof penetration. no new electrical work is required. job contact: bill froehlich 97... see more
Valuation:
$450
Permit #:
B2500601
Status:
complete
Fee:
$117
Permit Type:
N/A
Building Type:
N/A
Replace furnace. must comply with 2021 irc 2021 ipc and 2023 nec. work is subject to field inspections. inspections will not be performed unless all permit documentation is printed out and on site. inspections will not be performed unless all installation manuals are provided on site
Valuation:
N/A
Permit #:
BP-25-00068
Status:
complete
Fee:
$121
Permit Type:
N/A
Building Type:
N/A
Replace furnace. must comply with 2021 irc 2021 ipc and 2023 nec. work is subject to field inspections. inspections will not be performed unless all permit documentation is printed out and on site. inspections will not be performed unless all installation manuals are provided on site
Valuation:
N/A
Permit #:
BP-25-00112
Status:
complete
Fee:
$121
Permit Type:
N/A
Building Type:
N/A
Replace existing vent fan in hallway bathroom with new ashrae ventilator fan. install rigid pipe duct work through new roof cap. insulate duct work with r-11 duct wrap. no new electrical work needed. job contact: bill froehlich 970-617-2806
Valuation:
$450
Permit #:
B2500705
Status:
complete
Fee:
$117
Permit Type:
N/A
Building Type:
N/A
Install new ashrae fan in laundry room and install new duct through. south exterior wall of laundry room. install new wall cap over new penetration. no new electrical work required. job contact: bill froehlich 970-617-2806
Valuation:
$220
Permit #:
B2500965
Status:
complete
Fee:
$111
Permit Type:
N/A
Building Type:
N/A
Replace existing furnace in mobile home closet with new 95% afue furnace 45 000 btu. eggers electric will install a gfci receptacle for the condensate pump and/or heat tape to plug into. eggers license is #me-000087
Valuation:
$3,935
Permit #:
B2500487
Status:
complete
Fee:
$166
Permit Type:
N/A
Building Type:
N/A
Replace existing bathroom exhaust fan with an 110 cfm ashrae ventilator with built-in backdraft damper. make a new roof penetration and install a new vent cap with bird screen. install rigid duct between the fan and vent cap and insulate the duct work. no new electrical work is needed
Valuation:
$377
Permit #:
B2508378
Status:
issued
Fee:
$105
Permit Type:
N/A
Building Type:
N/A
Replace existing furnace in laundry room with new 96% afue furnace 26 000 btu. no new electrical work is needed. **all new plastic glued vents for fuel burning appliances must undergo pressure testing. to facilitate the inspection process please provide photographic evidence of the pressure test directly to the assigned inspector on the day the rough mechanical inspection is scheduled... see more
Valuation:
N/A
Permit #:
MEC2025-01709
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install a new ashrae ventilator in the upstairs master bathroom. make a new roof penetration and install a new vent cap. install rigid duct work between fan and vent cap and insulate the duct. eggers electric will install a new switch and 110v circuit to power the fan. jobsite contact: bill froehlich 9706172806
Valuation:
$827
Permit #:
B2507002
Status:
issued
Fee:
$105
Permit Type:
N/A
Building Type:
N/A
Replace existing fan in upstairs bathroom with new ashrae ventilator. make a new roof penetration and install new vent cap. install rigid duct work between fan and vent cap and insulate the duct. no new electrical work is needed. new ashrae fan is 110 cfm
Valuation:
$377
Permit #:
B2506803
Status:
complete
Fee:
$105
Permit Type:
N/A
Building Type:
N/A
Replace existing furnace in crawl space with new 96% afue furnace 80 000 btu. eggers electric will install a gfci protected receptacle for the condensate pump to plug into. this work is a combination of two over-the-counter permits. jobsite contact: bill froehlich 9706172806
Valuation:
$4,100
Permit #:
B2506796
Status:
issued
Fee:
$152
Permit Type:
N/A
Building Type:
N/A
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Energy Resource Center Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Energy Resource Center License info
Verified License
| License # | CR23-0477 |
| Status | Active |
| Town | Castle Rock |
| Type | Multiple Trade |
| Date Issued | 12-02-2025 |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Energy Resource Center at the Castle Rock Town, Colorado.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 0014127 |
| Status | Active |
| Pueblo | |
| Type | Unlimited |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Energy Resource Center at the Pueblo regional Building Department.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 21-017627 |
| Status | Active |
| City | Lafayette |
| Type | Mechanical Contractor |
- When BuildZoom last verified this license, it had an expiration date of May, 2026. Check the current license status of Energy Resource Center with the City of Lafayette
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 5492 |
| Status | Active |
| State | Colorado |
| Type | Plumbing Contractor |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Energy Resource Center 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 # | D11558 |
| Status | Active |
| City | Littleton |
| Type | Contractor |
| Date Issued | 01-14-2026 |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Energy Resource Center at the The City of Littleton, CO.
This is a sample of licensing data; click here to access a complete history.
Verified License
| Status | Active |
| City | Denver |
| Type | D Building Insulation |
- 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 | Residential Contractor Class C |
- 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 | H & V 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
| License # | AEC5891 |
| Status | Active |
| Town | Parker |
| Type | Contractor |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Energy Resource Center at the The Town of Parker, Colorado.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | H-3796(C) |
| Status | Active |
| City | Fort Collins |
| Type | Sub Contractor |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Energy Resource Center at the City of Fort Collins.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | MA180527 |
| Status | Active |
| County | Douglas County |
| Type | Mechanical A |
- BuildZoom verified this license was active as of September 2025.
Verify this license's status for Energy Resource Center at the Douglas County Building Division.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | CON-18-0225 |
| Status | Active |
| County | Boulder County |
| Type | Residential Mechanical Installations And Repair |
- BuildZoom verified this license was active as of November 2025.
Verify this license's status for Energy Resource Center at the Boulder County Land Use Department.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | LIC-00991213 |
| Status | Active |
| City | Boulder |
| Type | Mechanical |
| Class | Class B Commercial and Residential |
| Date Issued | 10-15-2025 |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Energy Resource Center at the Boulder Licensing Board.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | CL2672 |
| Status | Active |
| County | Larimer County, Co |
| Type | Mechanical Residential |
| Class | Residential |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Energy Resource Center at the Larimer County.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | MA080040 |
| Status | Active |
| County | Douglas County |
| Type | Mechanical A |
- BuildZoom verified this license was active as of September 2025.
Verify this license's status for Energy Resource Center at the Douglas County Building Division.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 140831036 |
| Status | Active |
| City | Westminster |
| Type | General Contractor |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for Energy Resource Center at the City of Westminster, Colorado.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | AEC1268 |
| Status | Active |
| City | Arvada |
| Type | Contractor |
| Date Issued | 03-17-2026 |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Energy Resource Center at the The City of Arvada, Colorado.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| Status | Active |
| County | Jefferson County |
| Type | Class B Mechanical (Up To 3 Stories) |
| Class | Up to 3 Stories |
- When BuildZoom last verified this license, it had an expiration date of December, 2023. Check the current license status of Energy Resource Center with the Jefferson County Licensed Contractors
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | MEC3417627 |
| Status | Active |
| City | Lafayette |
| Type | Mechanical Contractor |
- When BuildZoom last verified this license, it had an expiration date of May, 2022. Check the current license status of Energy Resource Center with the City of Lafayette
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 1268 |
| Status | Active |
| City | Arvada |
| Type | Bid Contractor, Mechanical |
- When BuildZoom last verified this license, it had an expiration date of July, 2017. Check the current license status of Energy Resource Center with the The City of Arvada, Colorado
This is a sample of licensing data; click here to access a complete history.
Unverified License
| License # | 10-0187 |
| Status | Unable To Verify |
| Town | Castle Rock |
| Type | Mechanical |
- 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 # | 2341 |
| Status | Inactive |
| State | Colorado |
| Type | Plumbing Contractor |
- According to the Colorado Division of Professions and Occupations, 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 Energy Resource Center at the Colorado Division of Professions and Occupations.
This is a sample of licensing data; click here to access a complete history.
Unverified License
| License # | AEC8761 |
| Status | Unable To Verify |
| City | Arvada |
| Type | Contractor |
- 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 # | 2808 |
| Status | Inactive |
| State | Colorado |
| Type | Plumbing Contractor |
- According to the Colorado Division of Professions and Occupations, 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 Energy Resource Center at the Colorado Division of Professions and Occupations.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | XX-1893 |
| Status | Inactive |
| City | Fort Collins |
| Type | Other |
- 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 Energy Resource Center at the City of Fort Collins.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| County | Jefferson County |
| Type | Class C Mechanical (1 2 Family Dwellings) |
| Class | 1-2 Family Dwellings |
- According to the Jefferson County Licensed Contractors, 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 | Denver |
| Type | D Building Insulation |
- 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 # | NAT-30500-2 |
| 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 Energy Resource Center at the United States Environmental Protection Agency.
This is a sample of licensing data; click here to access a complete history.
113
BuildZoom Score
Insured
| Insurer | United Fire & Casualty, Pinnacol |
Insured
| Workers Comp Provider | Berkshire |
7.4K
Permits
- Building permit records show that Energy Resource Center has worked on 7410 permitted projects.
Energy Resource Center Employees
AM
Aaron Martinez
BF
Bill Froehlich
Owner
CV
Connor Vaughn
Licensee 2
DW
Don Walker
DJ
Donley Walker, Jr.
Owner
EC
Energy Resource Center
Owner
HB
Howard Brooks
KH
Ken Hall
Licensee
KH
Kenneth Hall
Licensee
MD
Michael Doss
Co Owner
N
Nonprofit
Owner
WF
William Froehlich
WJ
William Froehlich, Jr.
Owner