Updated: Jun 23, 2026
Location and Projects
Address
503 Giuseppe Ct, Roseville, CA, 95678
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Cobex Construction Group Photos
Cobex Construction Group Roofer
At Cobex we offer valuable home solutions & products to our clients while always maintaining our principles in integrity, professionalism and reliability.
From BuildZoom: Cobex Construction Group, 503 Giuseppe Ct, Roseville, CA (Employees: Sergey N Kopychuk and Vazgen Dallakyan) holds a Contractor license and 3 other licenses according to the Butte County license board.
Their BuildZoom score of 131 ranks in the top 1% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Cobex Construction Group, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Cobex Construction Group Services
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Cobex Construction Group Contact Information
Phone Number: (916) 745-6699
Address: 503 Giuseppe Ct, Roseville, CA 95678
Cobex Construction Group Roseville
Quality
131
99th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Cobex Construction Group has a BuildZoom score of 131, which places them above 99% of 336,931 contractors in California.
Activity
|
1 project
|
2026 |
|
309 projects
|
2025 |
|
357 projects
|
2024 |
|
296 projects
|
2023 |
Our building permit records indicate that Cobex Construction Group has worked on at least
963.0 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
|
9 projects
|
Home Additions |
|
4 projects
|
Commercial Renovations |
|
868 projects
|
Roofing projects |
Analyzing permits over the last 4 years shows that Cobex Construction Group mostly works on
roofing project
and home addition
projects.
Pricing
|
31 projects
|
< $5k |
|
742 projects
|
$5k-$20k |
|
98 projects
|
$20k-$50k |
|
11 projects
|
$50k-$100k |
|
2 projects
|
$100k-$250k |
|
1 project
|
$500k-$1mil |
The typical size of their permits is approximately $13,320. 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 Cobex Construction Group
This is a sample of this contractor's permits. Click here to access their complete permit history.
Residential: limited review - electrical mechanical plumbing roof solar etc
2024-09-19
Install roof mounted solar system and ess on main dwelling (n) modules: (25) hanwha q cels q. peak duo blk ml-g10+ (400w) (n) microinverters: (25) enphase iq8plus-72-2-us (n) ess: (1) enphase encharge-10p-1p-na (10.0kwh) (n) rapid shutdown: (1) enphase rsd (n) controller: (1) enphase iq system controller 2 200a nema 3r (n) combiner: (1) enphase combiner panel 4/4c 125a (n) subpanel: (... see more
Valuation:
$59,800
Permit #:
BLD24-03407
Status:
complete
Fee:
$390
Permit Type:
Alteration
Building Type:
N/A
E-permit: tear off - yes resheet - no 1 layer(s) 12 squares of 30yr laminated dimensional composition. crrc: 0890-0026. planning insp required. in-progress inspection required if 10 sq or greater. cf-1r-alt on file. carbon monoxide & smoke alarms required. reference crc sections r315 & r314. all work subject to field inspection
Valuation:
$9,000
Permit #:
RES-2505759
Status:
issued
Fee:
$685
Permit Type:
N/A
Building Type:
Single family
Roof permit: tear off and install 13 squares of 30 yr laminated dimensional composition roofing material. in-progress inspection required if 10 squares or greater. cf-6r-env-01 required at final inspection. cf-1r-alt on file. carbon monoxide & smoke alarms required. reference crc sections r315 & r314. crrc: 0890-0026
Valuation:
$9,000
Permit #:
COM-2504998
Status:
expired
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Residential: limited review - electrical mechanical plumbing roof solar etc
2025-02-06
Reroof like for like comparable to comparable structure: main dwelling material assembly: comparable current roof: comparable overlaying existing: no # of existing layers: 1 sra high ****removal and reinstall of solar requires separate permit****
Valuation:
$9,000
Permit #:
BLD25-00606
Status:
issued
Fee:
$244
Permit Type:
Alteration
Building Type:
N/A
In progress insp required; re-roof or overlay onto existing single layer of roofing only. no additional electrical mechanical plumbing or structural work permitted.; reroof tear off order for 40 squares of comparable to comparable
Valuation:
$18,000
Permit #:
RRZR2025-00281
Status:
complete
Fee:
$557
Permit Type:
N/A
Building Type:
N/A
Residential: limited review - electrical mechanical plumbing roof solar etc
2025-10-29
Install 14.76kw room grid tied solar to single family dwelling (n) modules: (36) hanwha q cells q.peak duo blk ml-g10+ [410w] (n) microinverters: (36) enphase iq8plus-72-2-us (n) combiner: enphase x-iq-am1-240-6c w (3) 20a photovoltaic brkrs (n) disconect: 60a non-fused air conditioning disconnect (e) msp: 200a bus w ***175a derate*** & (1) 60a photovoltaic brkr mounting system: ironr... see more
Valuation:
$62,000
Permit #:
BLD25-03104
Status:
complete
Fee:
$727
Permit Type:
Alteration
Building Type:
N/A
In progress insp required; re-roof or overlay onto existing single layer of roofing only. no additional electrical mechanical plumbing or structural work permitted.; reroof tear off 45 squares of comparable to comparable
Valuation:
$20,000
Permit #:
RRZR2025-00428
Status:
complete
Fee:
$597
Permit Type:
N/A
Building Type:
N/A
In progress insp required; re-roof or overlay onto existing single layer of roofing only. no additional electrical mechanical plumbing or structural work permitted.; reroof tear off 27 squares of comparable to comparable
Valuation:
$20,000
Permit #:
RRZR2025-00425
Status:
complete
Fee:
$449
Permit Type:
N/A
Building Type:
N/A
In progress insp required; re-roof or overlay onto existing single layer of roofing only. no additional electrical mechanical plumbing or structural work permitted.; reroof tear off 22 squares of comparable to comparable
Valuation:
$18,000
Permit #:
RRZR2025-00344
Status:
issued
Fee:
$382
Permit Type:
N/A
Building Type:
N/A
In progress insp required; re-roof or overlay onto existing single layer of roofing only. no additional electrical mechanical plumbing or structural work permitted.; reroof tear off 36 squares of comparable to comparable
Valuation:
$20,000
Permit #:
RRZR2025-00343
Status:
complete
Fee:
$537
Permit Type:
N/A
Building Type:
N/A
In progress insp required; re-roof or overlay onto existing single layer of roofing only. no additional electrical mechanical plumbing or structural work permitted.; reroof tear off 36 squares of comparable to comparable
Valuation:
$20,000
Permit #:
RRZR2025-00331
Status:
issued
Fee:
$537
Permit Type:
N/A
Building Type:
N/A
In progress insp required; re-roof or overlay onto existing single layer of roofing only. no additional electrical mechanical plumbing or structural work permitted.; reroof tear off 40 squares of comparable to comparable
Valuation:
$20,000
Permit #:
RRZR2025-00292
Status:
issued
Fee:
$557
Permit Type:
N/A
Building Type:
N/A
In progress insp required; re-roof or overlay onto existing single layer of roofing only. no additional electrical mechanical plumbing or structural work permitted.; reroof tear off 40 squares of comparable to comparable
Valuation:
$20,000
Permit #:
RRZR2025-00170
Status:
complete
Fee:
$557
Permit Type:
N/A
Building Type:
N/A
In progress insp required; re-roof or overlay onto existing single layer of roofing only. no additional electrical mechanical plumbing or structural work permitted.; reroof tear off 16 squares of comparable to comparable
Valuation:
$15,000
Permit #:
RRZR2025-00044
Status:
issued
Fee:
$314
Permit Type:
N/A
Building Type:
N/A
Change-out split system to split system. the existing unit shall be removed. the new unit shall be placed in the same location as the existing unit and shall not exceed the size of the existing unit by more than 25%
Valuation:
$15,000
Permit #:
RES-2513669
Status:
final
Fee:
$235
Permit Type:
N/A
Building Type:
Single family
In progress insp required; re-roof or overlay onto existing single layer of roofing only. no additional electrical mechanical plumbing or structural work permitted.; reroof tear off 14 squares of comparable to comparable
Valuation:
$11,000
Permit #:
RRZR2025-00561
Status:
complete
Fee:
$314
Permit Type:
N/A
Building Type:
N/A
In progress insp required; re-roof 18 squares over tear off. in no additional electrical mechanical plumbing or structural work permitted.; 15 squares tpo and 3 squares of comparable shingles cool roof qualified
Valuation:
$13,000
Permit #:
RRZR2025-00550
Status:
complete
Fee:
$348
Permit Type:
N/A
Building Type:
N/A
In progress insp required; re-roof or overlay onto existing single layer of roofing only. no additional electrical mechanical plumbing or structural work permitted.; reroof tear off 24 squares of comparable to comparable
Valuation:
$14,000
Permit #:
RRZR2025-00549
Status:
complete
Fee:
$415
Permit Type:
N/A
Building Type:
N/A
In progress insp required; re-roof or overlay onto existing single layer of roofing only. no additional electrical mechanical plumbing or structural work permitted.; reroof tear off 21 squares of comparable to comparable
Valuation:
$11,000
Permit #:
RRZR2025-00489
Status:
complete
Fee:
$382
Permit Type:
N/A
Building Type:
N/A
In progress insp required; re-roof or overlay onto existing single layer of roofing only. no additional electrical mechanical plumbing or structural work permitted.; reroof tear off 22 squares of comparable to comparable
Valuation:
$12,000
Permit #:
RRZR2025-00487
Status:
complete
Fee:
$382
Permit Type:
N/A
Building Type:
N/A
Cobex Construction Group Reviews
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Verified License
BuildZoom confirmed this contractor's license
Cobex Construction Group License info
Verified License
| License # | 1031864 |
| Status | Active |
| City | Butte County |
| Type | Contractor |
| Business Type | Corporation |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Cobex Construction Group at the Butte County, CA.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 1031864 |
| Status | Active |
| City | Butte County |
| Type | Contractor |
| Business Type | Corporation |
- When BuildZoom last verified this license, it had an expiration date of October, 2025. Check the current license status of Cobex Construction Group with the Butte County, CA
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 1084602 |
| Status | Inactive |
| State | California |
| Type | Manufactured Housing |
| Business Type | Corporation |
- According to the California Contractors State License Board, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Cobex Construction Group at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 1043168 |
| Status | Inactive |
| City | Butte County |
| Type | Contractor |
| Business Type | Corporation |
- According to the Butte County, CA, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Cobex Construction Group at the Butte County, CA.
This is a sample of licensing data; click here to access a complete history.
131
BuildZoom Score
Bonded
| Bonded Agent | Suretec Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
1.4K
Permits
- Building permit records show that Cobex Construction Group has worked on 1438 permitted projects.
Cobex Construction Group Employees
SK
Sergey N Kopychuk
Rmo / Ceo / Pres
VD
Vazgen Dallakyan
Coo