Updated: Jul 04, 2026
Location and Projects
Address
P O BOX 902, Sebastopol, CA, 95473
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Ross Hamilton Construction Company Inc
For over three decades, Ross Hamilton Construction Company Inc has served homeowners and businesses throughout Sebastopol and the surrounding Sonoma County area. With 36 years in the industry, the firm offers a full range of general contracting services, including new home construction, home additions, remodeling, and commercial build-outs. Project experience includes custom residential builds, kitchen and bathroom renovations, and office tenant improvements. The company manages construction projects from initial planning through completion and works with clients on both small- and large-scale developments. Ross Hamilton Construction Company Inc is locally owned and emphasizes long-term relationships within the Sebastopol community. Portfolio projects highlight a focus on custom homes and functional renovations designed to meet the unique needs of North Bay property owners.
Ross Hamilton Construction Company Inc Services
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Ross Hamilton Construction Company Inc Contact Information
Phone Number: (925) 705-5685
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Address: P O BOX 902, Sebastopol, CA 95473
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Ross Hamilton Construction Company Inc Reviews
5 out of 5 stars, based on
1
review
-
By AnonymousAugust 1, 2018
Building Permits by Ross Hamilton Construction Company Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
Building/residential/mir/miscellaneous residential
2019-09-26
Repair second story deck off master bedroom new 4x4 guardrails post. no change to square footage or height
Valuation:
N/A
Permit #:
BIMIR19-009712
Status:
final
Fee:
$361
Permit Type:
N/A
Building Type:
N/A
Repair leak in source piping of work described in permit bipl18-011651
Valuation:
N/A
Permit #:
BIPL19-001977
Status:
final
Fee:
$146
Permit Type:
N/A
Building Type:
N/A
Replace approx. 20 ft of improper 3/4 gas piping
Valuation:
N/A
Permit #:
BIPL18-011651
Status:
final
Fee:
$146
Permit Type:
N/A
Building Type:
N/A
Replace flashing at existing chimney
Valuation:
N/A
Permit #:
BIAL18-005167
Status:
final
Fee:
$191
Permit Type:
N/A
Building Type:
N/A
Interior remodel to existing kitchen (replace counter tips). relocate washer dryer utility sink and water heater within the existing garage. (does not obstruct location that could be used for parking
Valuation:
N/A
Permit #:
BIAL14-009895
Status:
final
Fee:
$832
Permit Type:
N/A
Building Type:
N/A
To complete permit #406655--interior remodel to include interior staircase to basement; addition laundry to basement; shearwalls added at upper & lower levels; kitchen and bathroom remodel at upper level; rewire & replumbing entire residence; service upgrades for elect & gas meters........basement area is non-habitable space. (2001 cbc etc.) no new plans required per das@ 5-1136
Valuation:
N/A
Permit #:
BI418361
Status:
final
Fee:
$569
Permit Type:
N/A
Building Type:
N/A
Addition of 1167 sq. ft. to an existing single family residence to include remodel to main residence per plans 9-18-2008 revisions to addition 2 skylights and reconfigure kitchen island per plans///xn 12/16/08 refee paid
Valuation:
N/A
Permit #:
BI410837
Status:
final
Fee:
$7,522
Permit Type:
N/A
Building Type:
N/A
Remove and replace tile over existing tub replace faucet located in the shower and replace existing gutters through out the single family dwelling
Valuation:
N/A
Permit #:
16CP01133
Status:
final
Fee:
$283
Permit Type:
N/A
Building Type:
N/A
Replace kitchen cabinets & countertops in same layout and replace bathroom tile. (9/23/13 replace 3 windows one slider door and balcony rail.)
Valuation:
$3,500
Permit #:
B1303003
Status:
final
Fee:
$441
Permit Type:
N/A
Building Type:
N/A
Kitchen & bathroom remodel non-structural. 12-5-13 revision to increase master bathroom to addition tub and close to master bedroom
Valuation:
$5,500
Permit #:
RB1303688
Status:
final
Fee:
$550
Permit Type:
N/A
Building Type:
N/A
(re) - electrical - 1 & 2 unit residential (building)
2013-09-27
Electrical for 200 amps service upgrade; rewire with 12 circuits 6 incandes 6 floures 24 receptacles 12 switches
Valuation:
N/A
Permit #:
RE1302877
Status:
final
Fee:
$407
Permit Type:
N/A
Building Type:
N/A
Plumbing for kitchen & bathroom remodel- 2 toilets 2 lavs 1 tub 1 sink 1 dishwasher 1 disposal 1 water alter
Valuation:
N/A
Permit #:
RP1302304
Status:
final
Fee:
$254
Permit Type:
N/A
Building Type:
N/A
Remove awning due to county project- san pablo dam rd walkability project public works
Valuation:
N/A
Permit #:
BIT14-006807
Status:
final
Fee:
$133
Permit Type:
N/A
Building Type:
N/A
8 windows & 1 sliding patio door replacement; new light fixture in family room; replace exhaust fans in both bathrooms * replace hall bathroom shower/wetwall valve retile.(-items added 6/17/02)
Valuation:
$18,000
Permit #:
BP02001698
Status:
final
Fee:
$506
Permit Type:
N/A
Building Type:
N/A
Replace two 220 v electrical circuit wiring 1 to wall oven other to electric dryer receptacle
Valuation:
N/A
Permit #:
BIE21-000979
Status:
final
Fee:
$146
Permit Type:
N/A
Building Type:
N/A
New single family residence approximately 6379 sq. ft. of living and 900 sq. ft. for garage per plans ***inspection 11/1/06*** #118 - wetwall
Valuation:
N/A
Permit #:
BI369314
Status:
final
Fee:
$16,842
Permit Type:
N/A
Building Type:
N/A
Remodeling wui fire zone 2 - must comply with all restrictions in fire zone. repair exterior wall at stairwell. * ross added elect to permit.dc ***** print only 4 comment lines
Valuation:
N/A
Permit #:
0900001171
Status:
ISSUED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Wui fire zone 2 - must comply with all restrictions in fire zone. repair exterior wall at stairwell. * ross added elect to permit.dc ***** print only 4 comment lines
Valuation:
$6,500
Permit #:
0900001171
Status:
ISSUED
Fee:
N/A
Permit Type:
Bp-0 express
Building Type:
N/A
Residential sfd--renovation of kitchen and bathroom. removing a portion of the existing deck and stairs. replacing 4 windows.
Valuation:
$80,000
Permit #:
RB0201562
Status:
final
Fee:
$1,875
Permit Type:
N/A
Building Type:
N/A
Addition led lighting in kitchen circuits for appliances
Valuation:
N/A
Permit #:
E1302350
Status:
final
Fee:
$277
Permit Type:
N/A
Building Type:
N/A
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Ross Hamilton Construction Company Inc License info
Verified License
| License # | 672189 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Corporation |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for Ross Hamilton Construction Company 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 # | 433529 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Corporation |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Ross Hamilton Construction Company 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 # | 592505 |
| 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. If this is your business, please update your license status.
Check this license's status for Ross Hamilton Construction Company 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 # | 340540 |
| Status | Inactive |
| State | California |
| Type | General Building, Drywall, Painting And Decorating |
| 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. If this is your business, please update your license status.
Check this license's status for Ross Hamilton Construction Company 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 # | 1010972 |
| Status | Inactive |
| State | California |
| Type | General Building |
| 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. If this is your business, please update your license status.
Check this license's status for Ross Hamilton Construction Company 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 # | 919350 |
| Status | Inactive |
| State | California |
| Type | General Building |
| 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. If this is your business, please update your license status.
Check this license's status for Ross Hamilton Construction Company 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 # | 935119 |
| Status | Inactive |
| State | California |
| Type | General Building |
| 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. If this is your business, please update your license status.
Check this license's status for Ross Hamilton Construction Company 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 # | 483570 |
| Status | Inactive |
| State | California |
| Type | General Building, Solar |
| 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. If this is your business, please update your license status.
Check this license's status for Ross Hamilton Construction Company 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 # | 734801 |
| Status | Inactive |
| State | California |
| Type | General Building |
| 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. If this is your business, please update your license status.
Check this license's status for Ross Hamilton Construction Company Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
95
BuildZoom Score
Bonded
| Bonded Agent | Old Republic Surety Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Falls Lake Fire & Casualty Company |
85
Permits
- Building permit records show that Ross Hamilton Construction Company Inc has worked on 85 permitted projects.
Ross Hamilton Construction Company Inc Employees
DH
Daniel Wayne Hamilton
Owner
FH
Frank Hamilton
Sole Owner
GJ
George Armstrong Hamilton Jr
Sole Owner
JH
James Robert Hamilton
Sole Owner
MH
Michael James Hamilton
Owner
MH
Michael Nes Hamilton
Sole Owner
MH
Mike Nes Hamilton
Sole Owner
MH
Mike Nes Hamilton, Michael Nes Hamilton
Owner
RH
Robert James Hamilton
Owner
RH
Ross Le Roy Hamilton
Rmo/Ceo/Pres
SH
Steven Wayne Hamilton
Sole Owner
George is a stickler for details and thank goodness for that. The result is his workmanship is BEAUTIFUL and the highest quality. Slowly over the years we have been remodeling our Rockridge craftsman and George has been our contractor for every project, from major kitchen, bathroom, flooring and structural changes, to roofing (to secure for solar panel installation) to exterior work (painting, shingling, windows). He only uses the finest sub-contractors and highest quality products. The result is exquisite. I highly recommend George.