Updated: Feb 22, 2026
Location and Projects
Address
P O BOX 6707, Concord, CA, 94524
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Roya Construction HVAC/Mechanical Contractor
Roya Construction, Concord, Po Box 6707, Concord, CA (Owned by: Massoud Biarash) holds a General Building license and 1 other license according to the California license board.
Their BuildZoom score of 100 ranks in the top 13% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Roya Construction, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Roya Construction Contact Information
Phone Number: (925) 998-1150
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Address: P O BOX 6707, Concord, CA 94524
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Roya Construction Concord
Quality
100
87th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Roya Construction has a BuildZoom score of 100, which places them above 87% of 336,931 contractors in California.
Activity
|
4 projects
|
2025 |
|
2 projects
|
2024 |
|
1 project
|
2023 |
Our building permit records indicate that Roya Construction has worked on at least
7.0 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.
Pricing
|
3 projects
|
< $5k |
|
1 project
|
$5k-$20k |
|
2 projects
|
$20k-$50k |
The typical size of their permits is approximately $3,000. 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.
Mechanical - residential - heating air conditioning and ventilation (hvac)
2025-01-12
Unit # 113. hvac change out of condenser and air handler like for like same as original location. (2 tons 14 seer)
Valuation:
$3,000
Permit #:
MECR-2024-00278
Status:
complete
Fee:
$165
Permit Type:
N/A
Building Type:
N/A
Mechanical - residential - heating air conditioning and ventilation (hvac)
2025-01-12
Unit # 55. hvac change out of condenser and air handler like for like same as original location. (2 tons/14 seer)
Valuation:
$3,000
Permit #:
MECR-2024-00277
Status:
complete
Fee:
$165
Permit Type:
N/A
Building Type:
N/A
Water damage repair - int. wall & floor finishes can lights
Valuation:
$11,000
Permit #:
BLDG25-0526
Status:
final
Fee:
$851
Permit Type:
Water damage
Building Type:
N/A
Permit to finalize b14-009790 convert 714sf of attic to office space
Valuation:
$2,000
Permit #:
B24-018255
Status:
final
Fee:
$138
Permit Type:
N/A
Building Type:
N/A
Install (1) set of non-illum. fabricated letters
Valuation:
$5,150
Permit #:
201906994
Status:
complete
Fee:
$326
Permit Type:
Sign permit
Building Type:
N/A
Install (1) set of non-illum. fabricated letters
Valuation:
$5,150
Permit #:
201906994
Status:
complete
Fee:
$326
Permit Type:
Sign permit
Building Type:
N/A
Replacement of sliding door and window.
Valuation:
$6,300
Permit #:
B180907
Status:
final
Fee:
$298
Permit Type:
N/A
Building Type:
N/A
Remove and replace existing patio deck
Valuation:
$9,700
Permit #:
B180906
Status:
final
Fee:
$351
Permit Type:
N/A
Building Type:
N/A
Change out of a condenser (14 seer 2.5 tons) and coil in same location as original location like-for-like. no heater no electrical disconnect
Valuation:
N/A
Permit #:
00789589-WACR
Status:
canceled
Fee:
$120
Permit Type:
N/A
Building Type:
N/A
Replace (2) windows (1) located in bedroom and (1) dinning room.
Valuation:
$3,200
Permit #:
B171795
Status:
final
Fee:
$191
Permit Type:
N/A
Building Type:
N/A
Remove and replace dryrot-damaged balcony, & replace railing with t1-11
Valuation:
$9,300
Permit #:
B142789
Status:
final
Fee:
$335
Permit Type:
N/A
Building Type:
N/A
Remove and replace windows and one slider.
Valuation:
$7,200
Permit #:
B153567
Status:
final
Fee:
$240
Permit Type:
N/A
Building Type:
N/A
Replace (2) windows located in bedroom.
Valuation:
$3,200
Permit #:
B171087
Status:
final
Fee:
$191
Permit Type:
N/A
Building Type:
N/A
Replace (2) windows located in bedroom.
Valuation:
$3,200
Permit #:
B171088
Status:
final
Fee:
$191
Permit Type:
N/A
Building Type:
N/A
Remove & replace dryrot balcony, replace with t1-11 railing
Valuation:
$9,300
Permit #:
B143441
Status:
final
Fee:
$335
Permit Type:
N/A
Building Type:
N/A
Remove and replace dry rot balcony; replace railing with t1-11
Valuation:
$6,700
Permit #:
B143442
Status:
final
Fee:
$329
Permit Type:
N/A
Building Type:
N/A
Remove and replace dry rot balcony; replace railing with t1-11
Valuation:
$9,300
Permit #:
B143443
Status:
final
Fee:
$335
Permit Type:
N/A
Building Type:
N/A
Electrical for (1) internally illuminated double sidedmounument sign
Valuation:
$12,700
Permit #:
201702060
Status:
issued
Fee:
$316
Permit Type:
Electrical permit
Building Type:
N/A
*change of contractor replaces 00600995-ebp* medical office tenant improvement. m- convert office to medical/dental space tenant: roya toomarian
Valuation:
N/A
Permit #:
00619145-EBP
Status:
final
Fee:
$37
Permit Type:
N/A
Building Type:
N/A
*change of contractor. replace 00600996-mbp* medical office tenant improvement. m- convert office to medical/dental space tenant: roya toomarian
Valuation:
N/A
Permit #:
00619147-MBP
Status:
final
Fee:
$37
Permit Type:
N/A
Building Type:
N/A
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BZ Score
$23K
Avg Project
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BZ Score
$10.5K
Avg Project
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BZ Score
$4.5K
Avg Project
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Projects
Roya Construction Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Roya Construction License info
Verified License
| License # | 618312 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of December 2025.
Verify this license's status for Roya Construction at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 1080542 |
| Status | Inactive |
| State | California |
| Type | General Engineering |
| Business Type | Sole Ownership |
- According to the California Contractors State License Board, 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 Roya Construction at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
100
BuildZoom Score
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
34
Permits
- Building permit records show that Roya Construction has worked on 34 permitted projects.
Roya Construction Employees
MB
Massoud Biarash
Sole Owner
MB
Massoud Biarash
Owner
RN
Roya Noorbakhsh
Sole Owner