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Updated: Jun 02, 2026
Location and Projects
Address
708 GRAVENSTEIN HWY N, Sebastopol, CA, 95472
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Jra Construction Engineer
Jra Construction Inc, 708 Gravenstein Hwy N, Sebastopol, CA (Employees: Aaron Michael Hamilton, Cynthia Sue Hamilton, and Hamilton, Aaron) holds a General Building license and 5 other licenses according to the California license board.
Their BuildZoom score of 98 ranks in the top 16% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Jra Construction Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Jra Construction Inc Services
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Jra Construction Inc Contact Information
Phone Number: (707) 337-4005
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Address: 708 GRAVENSTEIN HWY N, Sebastopol, CA 95472
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Jra Construction Inc Sebastopol
Quality
98
84th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Jra Construction Inc has a BuildZoom score of 98, which places them above 84% of 336,931 contractors in California.
Activity
|
1 project
|
2024 |
Our building permit records indicate that Jra Construction Inc has worked on at least
1.0 project over the past 2 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
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.
Tenant improvement. (napa valley museum) change in occupancy of structure from m (mercantile) to a3 (museum) replace (e) light fixtures modifications to water closet to allow accessiblity
Valuation:
$100,000
Permit #:
BC24-01621-ALT
Status:
issued
Fee:
$6,346
Permit Type:
N/A
Building Type:
N/A
Interior remodel to addition new elevator lift in existing shalf of (e) 6-story manufacturing type i-a building to be use in conjuction with milling operation
Valuation:
$117,250
Permit #:
16014-10000-04512
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
For sfd- minor remodel of (2) bathrooms by replacing showers waterproofing replacing toilets and floors
Valuation:
N/A
Permit #:
BLD21-7368
Status:
issued
Fee:
$370
Permit Type:
N/A
Building Type:
N/A
Legalize by demolish (e) greenhouse #1 - 12 x 20 ft - 240 sq ft
Valuation:
N/A
Permit #:
DEM17-0265
Status:
final
Fee:
$758
Permit Type:
N/A
Building Type:
N/A
Legalize by demolish (e) greenhouse #3 - 20 x 40 ft - 800 sq ft
Valuation:
N/A
Permit #:
DEM17-0267
Status:
final
Fee:
$758
Permit Type:
N/A
Building Type:
N/A
Legalize by demolish (e) greenhouse #4 - 20 x 60 - 1200 sq ft
Valuation:
N/A
Permit #:
DEM17-0268
Status:
final
Fee:
$758
Permit Type:
N/A
Building Type:
N/A
Legalize by demolish (e) greenhouse #2 - 20 x 60 ft - 1200 sq ft
Valuation:
N/A
Permit #:
DEM17-0266
Status:
final
Fee:
$758
Permit Type:
N/A
Building Type:
N/A
American styrenics - replace cooling tower with (2) small cooling towers; provide new support platform and foundation. addition (2) heat exchangers w associated pipe supports
Valuation:
N/A
Permit #:
BLD21-02097
Status:
issued
Fee:
$2,126
Permit Type:
N/A
Building Type:
N/A
**expedited** american styrenics - replace cooling tower with (2) smal cooling towers addition (2) heat exchangers w associated pipe support
Valuation:
N/A
Permit #:
ELE21-01514
Status:
issued
Fee:
$333
Permit Type:
N/A
Building Type:
N/A
Install fall protection system at railroad
Valuation:
$50,000
Permit #:
1601-019
Status:
final
Fee:
$1,177
Permit Type:
Alteration repair
Building Type:
N/A
Commercial building permit - fall protection system for cargill as per approved plans
Valuation:
$95,000
Permit #:
BLD13-00138
Status:
complete
Fee:
$1,386
Permit Type:
N/A
Building Type:
N/A
Rem/rep 15 windows (same sizes and types - dual glazed); rem/rep drywall; remove 8 ft non bearing wall( between den liv room); replumbing rewire and new hvac
Valuation:
N/A
Permit #:
97014-30000-02254
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Installation of fall protection equipment at rail unloading pit ( central valley ag grinding ) c/s yosemite blvd
Valuation:
N/A
Permit #:
BLD2015-2170
Status:
final
Fee:
$1,796
Permit Type:
N/A
Building Type:
N/A
Remove and recompact approx 8 deep to check (e) pipeline. compaction to 95% per astm d 1557. total 89cy
Valuation:
N/A
Permit #:
01030-40000-02745
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Addition 368 sf (17'9"x28'10 irr & 4'x6'6") to house including electrical plumbing/heating
Valuation:
N/A
Permit #:
97014-30000-03317
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Printing press water chiller
Valuation:
N/A
Permit #:
50007-0176
Status:
final
Fee:
N/A
Permit Type:
Misc
Building Type:
N/A
Installation of fall protection system to roof @ modesto & empire traction co c/s leckron ave
Valuation:
N/A
Permit #:
BLD2015-1240
Status:
final
Fee:
$1,537
Permit Type:
N/A
Building Type:
N/A
Arkema inc installation of new tank with foundation
Valuation:
$50,000
Permit #:
BLD12-01646
Status:
final
Fee:
$2,139
Permit Type:
N/A
Building Type:
N/A
Cripple wall retro-fit bolt to foundation. rti for eric c. by syed ali
Valuation:
N/A
Permit #:
97016-10000-25805
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
(tidemark) building permit/major construction - (tidemark) building permit/major const. - pmt
2011-03-29
Fall restraint system
Valuation:
$20,000
Permit #:
PMT10-00919
Status:
final
Fee:
$357
Permit Type:
N/A
Building Type:
N/A
Similar Contractors
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BZ Score
$7.6K
Avg Project
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Projects
140
BZ Score
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Avg Project
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Projects
141
BZ Score
$12K
Avg Project
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Projects
Jra Construction Inc Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Jra Construction Inc License info
Verified License
| License # | 856709 |
| Status | Active |
| State | California |
| Type | General Building |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Jra Construction Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 701920 |
| Status | Active |
| State | California |
| Type | General Engineering |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Jra Construction Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 67475 |
| Status | Active |
| State | Nevada |
| Type | C14g - Prefabricated Steel Structures |
- When BuildZoom last verified this license, it had an expiration date of April, 2016. Check the current license status of Jra Construction Inc with the Nevada State Contractors Board
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 6782776-5551 |
| Status | Inactive |
| State | Utah |
| Type | Contractor |
- According to the Utah Division of Occupational and Professional Licensing, 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 Jra Construction Inc at the Utah Division of Occupational and Professional Licensing.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 721291 |
| Status | Inactive |
| State | California |
| Type | General Building |
- 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 Jra Construction Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 0067475 |
| Status | Inactive |
| State | Nevada |
| Type | C 14 G Prefabricated Steel Structures |
- According to the Nevada State Contractors 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 Jra Construction Inc at the Nevada State Contractors Board.
This is a sample of licensing data; click here to access a complete history.
98
BuildZoom Score
Bonded
| Bonded Agent | Suretec Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Berkshire Hathaway Homestate Insurance Company |
22
Permits
- Building permit records show that Jra Construction Inc has worked on 22 permitted projects.
Jra Construction Inc Employees
AH
Aaron Michael Hamilton
Rmo
CH
Cynthia Sue Hamilton
Officer
HA
Hamilton, Aaron
Ceo
HS
Hamilton, Cynthia Sue
Secretary
HJ
Hamilton, Robert John
President Qualified Individual
JA
Jason Robert Alley
Sole Owner
JA
Jose Ramon Arencibia
Sole Owner
RH
Robert John Hamilton
Deceased