Updated: May 29, 2026
Location and Projects
Address
P.O. BOX 1701, Castle Rock, CO, 80104
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Sunnyside Electric
Sunnyside Electric, Castle, Po Box 1701, Castle Rock, CO (Owned by: Tony Mascorro Oakwood Homes) holds a Electrical license and 13 other licenses according to the Boulder 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 Sunnyside Electric, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Sunnyside Electric Contact Information
Phone Number: (303) 718-9314
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Address: P.O. BOX 1701, Castle Rock, CO 80104
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Sunnyside Electric Castle Rock
Quality
108
95th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Sunnyside Electric has a BuildZoom score of 108, which places them above 95% of 55,949 contractors in Colorado.
Activity
|
11 projects
|
2025 |
|
9 projects
|
2024 |
|
16 projects
|
2023 |
Our building permit records indicate that Sunnyside Electric has worked on at least
36.0 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
|
New Constructions |
|
4 projects
|
Home Additions |
|
29 projects
|
Electrical projects |
Analyzing permits over the last 4 years shows that Sunnyside Electric mostly works on
electrical project
and new construction
projects.
Pricing
|
14 projects
|
< $5k |
|
7 projects
|
$5k-$20k |
|
9 projects
|
$20k-$50k |
|
1 project
|
$500k-$1mil |
|
2 projects
|
$1mil+ |
The typical size of their permits is approximately $9,250. 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.
Sunnyside Electric Reviews
5 out of 5 stars, based on
1
review
-
By Christine B.February 18, 2021rewire entire kitchen and new electrical panel
This is a sample of this contractor's permits. Click here to access their complete permit history.
Custom home -foundation only -res23-00164
Valuation:
$1,700,000
Permit #:
FND23-00003
Status:
applied
Fee:
$258
Permit Type:
N/A
Building Type:
N/A
Attached garage addition 634 sf from 2 car garage to 3 car garage. also interior work; replace a bearing wall with a beam and posts
Valuation:
$100,000
Permit #:
RES-24-00997
Status:
expired
Fee:
$3,155
Permit Type:
N/A
Building Type:
N/A
Extend basement remodel interior basement will frame out 12 feet by 33 feet. no plumbing. two or three air vents 3 or 4 electrical outlets or more as need for code. majority of remodel will be on main level. basically replacing all finishes. new and replacing some existing plumbing hvac and electrical. most just updating. some structural work with new and removed walls
Valuation:
$75,000
Permit #:
RES-20-01387
Status:
issued
Fee:
$2,517
Permit Type:
N/A
Building Type:
N/A
Electrical 200 amp electrical service to house. garage- circuits required per code
Valuation:
$100
Permit #:
2025-ELEC-0002281
Status:
final
Fee:
$20
Permit Type:
N/A
Building Type:
Garage
An existing 2-story brick duplex originally built in 1886 is in the process of structural repairs to the foundation and the brick load bearing eastern most wall along bannock street is to be completed per the drawings included in this submittal. . the brick wall chimney are to be stabilized and repaired per the structural drawings that are included in this submittal. the lower level w... see more
Valuation:
$20,000
Permit #:
2020-ELEC-0007841
Status:
final
Fee:
$304
Permit Type:
N/A
Building Type:
Multi-family resi...
Kitchen remodel new wiring and lighting in kitchen per layout master bathroom remodel new wiring and lighting master bed lighting and closet remodel with new wiring and lighting powder bathroom remodel light and wiring up laundry new washer and dryer plugs addition sub panel to accommodate arc fault for new work
Valuation:
$8,500
Permit #:
2021-ELEC-0015192
Status:
issued
Fee:
$91
Permit Type:
N/A
Building Type:
Single family res...
Provide electric rough and trim per electrical prints
Valuation:
$30,000
Permit #:
2025-ELEC-0003376
Status:
final
Fee:
$260
Permit Type:
N/A
Building Type:
Single family res...
Custom home 1931 sq ft fin basement
Valuation:
$1,700,000
Permit #:
RES23-00164
Status:
final
Fee:
$60,274
Permit Type:
New sf detached
Building Type:
N/A
Wire and trim electrical per approved prints
Valuation:
$30,000
Permit #:
2025-ELEC-0002282
Status:
final
Fee:
$260
Permit Type:
N/A
Building Type:
Single family res...
Separate detached garage permit- provide electrical rough in and trim per prints garage will also have 200 amp feed through panel for house
Valuation:
$100
Permit #:
2024-ELEC-0011271
Status:
final
Fee:
$20
Permit Type:
N/A
Building Type:
Single family res...
Emergency electric service repair replace old electrical service with new due to damaged wire
Valuation:
$6,500
Permit #:
2025-ELEC-0010761
Status:
final
Fee:
$75
Permit Type:
N/A
Building Type:
Single family res...
Residence steel garage - 120 ft x 60 ft steel garage
Valuation:
$100,000
Permit #:
BDP22-2436
Status:
issued
Fee:
$2,762
Permit Type:
New
Building Type:
Residential
Provide rough and trim per approved electrical prints with detached garage and 200amp service
Valuation:
$28,000
Permit #:
2024-ELEC-0009437
Status:
final
Fee:
$244
Permit Type:
N/A
Building Type:
Single family res...
Kitchen remodel new lighting living room new lighting basement living new laundry washer and dryer service change 200 amp
Valuation:
$10,500
Permit #:
2022-ELEC-0011468
Status:
final
Fee:
$107
Permit Type:
N/A
Building Type:
Single family res...
Comments: the service is upgrading to 200 amp| the service type is grc mast
Valuation:
$6,500
Permit #:
1926010
Status:
issued
Fee:
$182
Permit Type:
Electrical permit
Building Type:
N/A
Kitchen basement remodel rest of house is existing and 200 amp service change
Valuation:
$5,000
Permit #:
2023-ELEC-0006454
Status:
final
Fee:
$59
Permit Type:
N/A
Building Type:
Single family res...
Remodel all new wiring lighting and outlets through out entire house. switch and plug house new 200amp service
Valuation:
$8,000
Permit #:
2022-ELEC-0003553
Status:
issued
Fee:
$83
Permit Type:
N/A
Building Type:
Single family res...
Remodel all new wiring lighting and outlets through out entire house.switch and plug new. new 200 amp panel
Valuation:
$8,500
Permit #:
2022-ELEC-0000435
Status:
issued
Fee:
$91
Permit Type:
N/A
Building Type:
Single family res...
Temporary power pole
Valuation:
$100
Permit #:
2025-ELEC-0002220
Status:
final
Fee:
$20
Permit Type:
N/A
Building Type:
Single family res...
Provide electrical rough and trim per plans. garage is attached
Valuation:
$35,000
Permit #:
2024-ELEC-0014384
Status:
final
Fee:
$300
Permit Type:
N/A
Building Type:
Single family res...
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BZ Score
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Avg Project
-
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131
BZ Score
$4.8K
Avg Project
-
Projects
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BZ Score
$8K
Avg Project
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Projects
Recent Buildzoom Projects
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Verified License
BuildZoom confirmed this contractor's license
Sunnyside Electric License info
Verified License
| License # | LIC-01005551 |
| Status | Active |
| City | Boulder |
| Type | Electrical |
| Class | Electrical |
| Date Issued | 04-27-2026 |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Sunnyside Electric at the Boulder Licensing Board.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | AEC7881 |
| Status | Active |
| City | Arvada |
| Type | Contractor |
- BuildZoom verified this license was active as of February 2026.
Verify this license's status for Sunnyside Electric at the The City of Arvada, Colorado.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | CR25-0767 |
| Status | Active |
| Town | Castle Rock |
| Type | Electrical |
| Date Issued | 10-13-2025 |
- BuildZoom verified this license was active as of February 2026.
Verify this license's status for Sunnyside Electric at the Castle Rock Town, Colorado.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 101179 |
| Status | Active |
| State | Colorado |
| Type | Electrical Contractor |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Sunnyside Electric 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 # | 101179 |
| Status | Active |
| State | Colorado |
| Type | Electrical Contractor |
- BuildZoom verified this license was active as of October 2025.
Verify this license's status for Sunnyside Electric 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 # | 101179 |
| 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 Sunnyside Electric 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 # | 101179 |
| Status | Active |
| State | Colorado |
| Type | Electrical Contractor |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Sunnyside Electric at the Colorado Division of Professions and Occupations.
This is a sample of licensing data; click here to access a complete history.
Verified License
| Status | Active |
| City | Denver |
| Type | Electrical |
- BuildZoom verified this license was active as of May 2026.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | E210043 |
| Status | Active |
| County | Douglas County |
| Type | Electrical |
- BuildZoom verified this license was active as of July 2025.
Verify this license's status for Sunnyside Electric at the Douglas County Building Division.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 1902419 |
| Status | Active |
| City | Westminster |
| Type | Electrical Contractor |
| Date Issued | 01-14-2026 |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Sunnyside Electric at the City of Westminster, Colorado.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| Status | Active |
| City | Denver |
- When BuildZoom last verified this license, it had an expiration date of October, 2020. Check the current license status of Sunnyside Electric with the City and County of Denver Community Planning and Development
This is a sample of licensing data; click here to access a complete history.
Unverified License
| License # | 18-2705 |
| Status | Unable To Verify |
| Town | Castle Rock |
| Type | Electrical |
- 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 # | LCC202000620 |
| 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. If this is your business, please update your license status.
Check this license's status for Sunnyside Electric at the Thornton City Development Contractor License.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | E00632 |
| Status | Inactive |
| City | Littleton |
| Type | Class E |
- 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 Sunnyside Electric at the The City of Littleton, CO.
This is a sample of licensing data; click here to access a complete history.
108
BuildZoom Score
Insured
| Insurer | The Hartford |
Insured
| Workers Comp Provider | The Harford |
71
Permits
- Building permit records show that Sunnyside Electric has worked on 71 permitted projects.
Sunnyside Electric Employees
SE
Sunnyside Electric
SI
Sunnyside Electric Inc.
TM
Tony Mascorro
TH
Tony Mascorro Oakwood Homes
Owner
The owner was very professional and prompt. Tony and his employee's are very professional and did an excellent job on our kitchen remodel. I would definitely recommend this company in the future for all electrical needs.