Updated: Nov 19, 2025
Location and Projects
Address
1432 Gay St, Longmont, CO, 80501
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Mountainside Electric Company
Electrical contracting. Repairs and maintenance. 720-276-8552
From BuildZoom: Mountainside Electric Company, 1432 Gay St, Longmont, CO (Employee: William D. Jones) holds a Contractor license and 11 other licenses according to the Parker license board.
Their BuildZoom score of 98 ranks in the top 16% of 55,949 Colorado licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Mountainside Electric Company, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Mountainside Electric Company Contact Information
Phone Number: (720) 276-8552
Address: 1432 Gay St, Longmont, CO 80501
Mountainside Electric Company Longmont
Quality
98
84th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Mountainside Electric Company has a BuildZoom score of 98, which places them above 84% of 55,949 contractors in Colorado.
Activity
|
3 projects
|
2025 |
|
1 project
|
2024 |
Our building permit records indicate that Mountainside Electric Company has worked on at least
4.0 projects over the past year.
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
|
4 projects
|
Electrical projects |
Analyzing permits over the last 4 years shows that Mountainside Electric Company mostly works on
electrical project
projects.
Pricing
|
1 project
|
< $5k |
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 Mountainside Electric Company
This is a sample of this contractor's permits. Click here to access their complete permit history.
Service upgrade from 125 to 200amps
Valuation:
$4,000
Permit #:
B202407625
Status:
issued
Fee:
$790
Permit Type:
N/A
Building Type:
N/A
*voided for inactivity. requirements for review not received within 180 days of application.* *replace service riser damaged by falling tree
Valuation:
N/A
Permit #:
ELE2020-01345
Status:
canceled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Other
Valuation:
N/A
Permit #:
25-08815
Status:
plancheck
Fee:
N/A
Permit Type:
Other
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
ELE2020-00064
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Shed install
Valuation:
N/A
Permit #:
B201903239
Status:
complete
Fee:
$520
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
ELE2019-00992
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Electrical - air conditioning unit must be identified with unit number. air conditioning unit must have a means of disconnect within sight of equipment (required on roof next to unit). all wiring must be ran in approved conduit. exposed romex shall not be used between the wall and the air conditioning unit. electrician needs to verify that breakers in panels are sized correctly. a ser... see more
Valuation:
N/A
Permit #:
PMT2017-05322
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
Multifamily dwell...
Basement finish. work was started by a contractor withou
Valuation:
N/A
Permit #:
08-4406
Status:
final
Fee:
N/A
Permit Type:
Basement finish
Building Type:
N/A
Dragon tree spa-install new commercial washer and dryer using existing plumbing connections. addition gas line to dryer and new 8 dryer vent in an existing wall penetration and install new breaker for dryer. reference his2016-00075 for historic approval
Valuation:
N/A
Permit #:
PMT2016-01390-PLB
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Dragon tree spa-install new commercial washer and dryer using existing plumbing connections. addition gas line to dryer and new 8 dryer vent in an existing wall penetration and install new breaker for dryer. reference his2016-00075 for historic approval
Valuation:
N/A
Permit #:
PMT2016-01390-MEC
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Dragon tree spa-install new commercial washer and dryer using existing plumbing connections. addition gas line to dryer and new 8 dryer vent in an existing wall penetration and install new breaker for dryer. reference his2016-00075 for historic approval
Valuation:
N/A
Permit #:
PMT2016-01390-ELE
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Addition recess can lights living room & kitchen
Valuation:
N/A
Permit #:
BP-14-01086
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Permit for installation of approximately 8 double duplex outlets on existing circuitry in a marijuana processing facility.
Valuation:
N/A
Permit #:
PMT2017-00158
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
Manufacturing
New 240v cicuit for new comfort cooling system (installed under pmt2017-20209).
Valuation:
N/A
Permit #:
PMT2017-02210
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
Multifamily Dwell...
Electrical service upgrade to 125 amps. scope of work includes electrical wiring.
Valuation:
$0
Permit #:
PMT2016-00937
Status:
Issued
Fee:
N/A
Permit Type:
Residential
Building Type:
Single Family Det...
Residential service upgrade to 100 amps for a single family dwelling.
Valuation:
$0
Permit #:
PMT2016-01599
Status:
Completed
Fee:
N/A
Permit Type:
Residential
Building Type:
Single Family Det...
Service upgrade to 300 amps (overhead feed) and electrical work related to an on-demand water heater. installation of water heater by separate mechanical permit.
Valuation:
$0
Permit #:
PMT2012-00207
Status:
Completed
Fee:
N/A
Permit Type:
Residential
Building Type:
Single Family Det...
Basement finish. work was started by a contractor without permit who then abandoned the job. owner pulling permit to complete work. no work without permit penalty assessed because of situation. 3/26/09 - permit includes service change (prb)
Valuation:
$18,045
Permit #:
08-4406
Status:
Un-Approved
Fee:
$1,163
Permit Type:
Basement finish
Building Type:
N/A
Other
31047 Joanie Rd, CO
2015-04-08
Service upgrade, new hot tub, service change (sc), move service (ms)
Valuation:
$5,500
Permit #:
15-106525 EP
Status:
Active
Fee:
N/A
Permit Type:
Residential
Building Type:
N/A
Electrical permit to hook-up air conditioner compressor to be installed through a separate permit.
Valuation:
$0
Permit #:
PMT2013-04015
Status:
Issued
Fee:
N/A
Permit Type:
Residential
Building Type:
Multifamily Dwell...
Mountainside Electric Company Reviews
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Verified License
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Mountainside Electric Company License info
Verified License
| License # | AEC8898 |
| Status | Active |
| Town | Parker |
| Type | Contractor |
| Date Issued | 08-11-2025 |
- BuildZoom verified this license was active as of October 2025.
Verify this license's status for Mountainside Electric Company at the The Town of Parker, Colorado.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 6306 |
| Status | Active |
| State | Colorado |
| Type | Electrical Contractor |
- BuildZoom verified this license was active as of November 2025.
Verify this license's status for Mountainside Electric Company 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 # | 3573 |
| Status | Active |
| State | Colorado |
| Type | Electrician |
- BuildZoom verified this license was active as of November 2025.
Verify this license's status for Mountainside Electric Company 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 # | 6306 |
| 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 Mountainside Electric Company 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 # | LIC-0006982 |
| Status | Active |
| City | Boulder |
| Type | Electrical |
- When BuildZoom last verified this license, it had an expiration date of December, 2018. Check the current license status of Mountainside Electric Company with the Boulder Licensing Board
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 0003573 |
| Status | Active |
| State | Colorado |
| Type | Master Electrician |
- When BuildZoom last verified this license, it had an expiration date of September, 2017. Check the current license status of Mountainside Electric Company 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 # | EC.0006306 |
| 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 Mountainside Electric Company 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 # | 23611 |
| Status | Active |
| City | Thornton |
| Type | Electrical |
- BuildZoom has not verified this license since June, 2017.
Verify this license's status for Mountainside Electric Company at the Thornton City Development Contractor License.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | LIC-0006982-ELEC |
| Status | Inactive |
| City | Boulder |
| Type | Electrical |
| Class | Electrical |
- According to the Boulder Licensing Board, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Mountainside Electric Company at the Boulder Licensing Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 050831028 |
| 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.
Check this license's status for Mountainside Electric Company at the City of Westminster, Colorado.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | LCC2015062252 |
| Status | Inactive |
| City | Thornton |
| Type | Class D Electrical |
- According to the Thornton City Development Contractor License, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Mountainside Electric Company at the Thornton City Development Contractor License.
This is a sample of licensing data; click here to access a complete history.
Unverified License
| License # | 0006982 |
| Status | Unable To Verify |
| State | Colorado |
| Type | Electrical |
| Class | Master electrician |
- 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.
98
BuildZoom Score
73
Permits
- Building permit records show that Mountainside Electric Company has worked on 73 permitted projects.
Mountainside Electric Company Employees
WJ
William D. Jones