Updated: Jun 02, 2026
Location and Projects
Address
3211 Thundering Herd Way, Wellington, CO, 80549
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Tandem Electric, LLC
Tandem Electric, LLC, 3211 Thundering Herd Way, Wellington, CO (Owned by: Mack S Shafii) holds a Electrical Contractor license and 5 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 Tandem Electric, LLC, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Tandem Electric, LLC Contact Information
Phone Number: (970) 310-8264
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Address: 3211 Thundering Herd Way, Wellington, CO 80549
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Tandem Electric, LLC Wellington
Quality
110
96th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Tandem Electric, LLC has a BuildZoom score of 110, which places them above 96% of 55,949 contractors in Colorado.
Activity
|
39 projects
|
2025 |
|
9 projects
|
2024 |
|
7 projects
|
2023 |
Our building permit records indicate that Tandem Electric, LLC has worked on at least
55.0 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
|
6 projects
|
Home Additions |
|
55 projects
|
Electrical projects |
Analyzing permits over the last 4 years shows that Tandem Electric, LLC mostly works on
electrical project
and home addition
projects.
Pricing
|
9 projects
|
< $5k |
|
27 projects
|
$5k-$20k |
|
17 projects
|
$20k-$50k |
|
2 projects
|
$50k-$100k |
The typical size of their permits is approximately $15,785. 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.
6-4-2025 revision submitted to remove the service upgrade. service upgrade remodel to include upgrade electrical panel from 100 amps to 200 amps. combine bedroom 3 with the existing primary bedroom to create (1) large bedroom. the dividing wall is non-structural roof is truss system spanning from exterior wall to exterior wall. rearrange the plumbing and fixture or both the guest (hal... see more
Valuation:
$80,450
Permit #:
B2503955
Status:
complete
Fee:
$2,997
Permit Type:
N/A
Building Type:
N/A
8/18/2025 revision: plumber discovered water in the sewer line need to replace all underground pipe in basement and 20 feet outside and install new sewer lift station the owner wants to addition two 4 x4 egress windows to the downstairs bedrooms (removing the originals) new electrical wiring and fixtures in basement to replace outdated hazardous conditions. residential remodel: remove... see more
Valuation:
$92,500
Permit #:
B2504138
Status:
complete
Fee:
$3,535
Permit Type:
N/A
Building Type:
N/A
Replace furnace and air conditioning **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. approved tests: 10 ft water test 5 psi positive pressure or negative 5 psi... see more
Valuation:
N/A
Permit #:
MEC2025-01498
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Basement finish of 725 sq. ft. to include one bedroom one 3/4 bathroom and living area job contact: kevin anderson 9708894360. no structural work to be completed no range or combination of cooktop and oven. city staff comment: this looks to be a p2904 based on conversation with the inspector although the heads will need to meet 13d since this is multifamily this is an unusual conditio... see more
Valuation:
$26,500
Permit #:
B2507643
Status:
complete
Fee:
$837
Permit Type:
N/A
Building Type:
N/A
Remove existing fixtures on the main floor bathroom with addition of freestanding bathtub and shower. kitchen upgrade to include new cabinets and counter tops. opening up a wall from bed1 to bed 2 to create closet in bed 1. replacing current slider door to backyard. all light fixtures to be updated throughout. after the fact basement finish of 955 sq. ft. existing; great room 3/4 bath... see more
Valuation:
$40,000
Permit #:
B2401415
Status:
complete
Fee:
$2,051
Permit Type:
N/A
Building Type:
N/A
Basement finish of 600 sq ft to include two bedrooms 1 bathroom and living area with wet bar. 60 sq ft to remain unfinished. jobsite contact: erick sanchez 970-412-5848
Valuation:
$8,000
Permit #:
B2504206
Status:
complete
Fee:
$361
Permit Type:
N/A
Building Type:
N/A
Tenant finish of 200 sq ft. due to vehicular collision with exterior wall. exterior repair of stucco stone and framing. interior repair of framing insulation drywall minor electrical millwork cabinets flooring and base. job contact: ron rudkin 970-566-5660
Valuation:
$40,000
Permit #:
B2308511
Status:
complete
Fee:
$1,549
Permit Type:
N/A
Building Type:
N/A
Bathroom remodel of 118 sq ft to relocate toilet remove free-standing shower addition showerhead to existing tub and convert toilet area into closet. homeowner affidavit on file
Valuation:
$18,000
Permit #:
B2302623
Status:
complete
Fee:
$772
Permit Type:
N/A
Building Type:
N/A
Replace furnace air conditioning and addition new mini split heat pump
Valuation:
$41,246
Permit #:
B2501160
Status:
complete
Fee:
$1,257
Permit Type:
N/A
Building Type:
N/A
Upgrade overhead100 amp service to 200 amp service with main breaker
Valuation:
$3,800
Permit #:
B202502318
Status:
canceled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Residential - air conditioning & furnace replacement
Valuation:
$34,207
Permit #:
25-MISC0106
Status:
applied
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Residential - accessory living area second floor garage & deck
Valuation:
N/A
Permit #:
25-RES0321
Status:
applied
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New mini split heat pump system appliances: 1
Valuation:
$30,870
Permit #:
B2503837
Status:
expired
Fee:
$860
Permit Type:
N/A
Building Type:
N/A
Upgrade exiting 100 amp overhead service to 200 amp
Valuation:
$3,000
Permit #:
BP-25-1274
Status:
complete
Fee:
$130
Permit Type:
N/A
Building Type:
N/A
Residential - air conditioning replacement
Valuation:
$9,684
Permit #:
25-MISC1028
Status:
applied
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Residential - heat pump replacement
Valuation:
$20,047
Permit #:
25-MISC0849
Status:
applied
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New mini split heat pump 24k btu
Valuation:
$28,701
Permit #:
B2502343
Status:
issued
Fee:
$804
Permit Type:
N/A
Building Type:
N/A
Install new mini split heat pump
Valuation:
$29,000
Permit #:
B2501385
Status:
complete
Fee:
$812
Permit Type:
N/A
Building Type:
N/A
Residential - mini split
Valuation:
$37,232
Permit #:
25-MISC0220
Status:
applied
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Residential - mini split units
Valuation:
$28,027
Permit #:
24-MISC0140
Status:
applied
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
Tandem Electric, LLC License info
Verified License
| License # | 6993 |
| Status | Active |
| State | Colorado |
| Type | Electrical Contractor |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Tandem Electric, LLC at 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 # | 6993 |
| 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 Tandem Electric, 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 # | ME-1013 |
| Status | Active |
| City | Fort Collins |
| Type | Sub Contractor |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Tandem Electric, LLC at the City of Fort Collins.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | EC.0006993 |
| 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 Tandem Electric, LLC 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 # | ME-1013 |
| Status | Active |
| Type | Sub Contractor |
- When BuildZoom last verified this license, it had an expiration date of June, 2015.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | E220041 |
| Status | Inactive |
| County | Douglas County |
| Type | Electrical |
- 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 Tandem Electric, LLC at the Douglas County Building Division.
This is a sample of licensing data; click here to access a complete history.
110
BuildZoom Score
Insured
| Insurer | United Fire & Casualty |
80
Permits
- Building permit records show that Tandem Electric, LLC has worked on 80 permitted projects.
Tandem Electric, LLC Employees
MS
Mack S Shafii
Owner
MS
Mack Shafii
Owner
SS
Shafii, Mack S
TL
Tandem Electric, Llc