Updated: Jun 01, 2026
Location and Projects
Address
P O BOX 11507, Santa Rosa, CA, 95406
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A-1 Builders Construction
Serving Santa Rosa, California, A-1 Builders brings 38 years of experience to residential construction and remodeling projects. The company has a longstanding presence in the region and provides general building services for homeowners throughout the Santa Rosa area. Portfolio examples show a range of project capabilities, including home additions, kitchen and bathroom remodels, and structural improvements tailored to client needs. A-1 Builders’ project approach includes direct communication with property owners to ensure each residential project aligns with the vision and requirements of the client. The company focuses on serving single-family homes and offers guidance on both interior and exterior remodeling. With decades of experience in the local construction landscape, A-1 Builders is a resource for Santa Rosa residents seeking general building and renovation services.
A-1 Builders Services
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A-1 Builders Contact Information
Phone Number: (510) 415-0583
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Address: P O BOX 11507, Santa Rosa, CA 95406
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A-1 Builders Santa Rosa
Quality
102
89th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
A-1 Builders has a BuildZoom score of 102, which places them above 89% of 336,931 contractors in California.
Activity
|
1 project
|
2024 |
|
1 project
|
2023 |
Our building permit records indicate that A-1 Builders has worked on at least
2.0 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
|
1 project
|
$250k-$500k |
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.
Tubbs-adobe fire 2017: rebuild single family residence. residence is 1665 sf original was 1235 sf with 507 sf garage and 109 sf in covered porch(s) the following conditions are required: backflow: fire sprinklers will be required. a minimum 1” backflow device will be required per either current city standard city standard 875(double check backflow) or per city standard. 875f (in-line ... see more
Valuation:
$430,000
Permit #:
B19-5584
Status:
final
Fee:
$5,438
Permit Type:
N/A
Building Type:
N/A
Tubbs-adobe fire 2017: rebuild 2649 sf sfd; 460 sf garage; and 61 sf covered entry. original was 1538 sf difference of 1111 sf the following conditions are required: backflow: fire sprinklers will be required so a minimum 1” backflow device will be required per current city standard 875 water meter: there is an existing 5/8” water meter serving this parcel. this will need to be upsize... see more
Valuation:
$300,000
Permit #:
B18-4025
Status:
final
Fee:
$5,391
Permit Type:
N/A
Building Type:
N/A
Tubbs-adobe fire 2017: rebuild 2026 sf single family dwelling (original was 1625 sf adding 401 sf) 437 sf garage 89 sf entry porch 71 sf rear porch 60 sf uncovered deck and 405 sf patio the following conditions are required: backflow: fire sprinklers will be required. a minimum 1” backflow device will be required per either current city standard city standard 875(double check backflow... see more
Valuation:
$350,000
Permit #:
B19-0129
Status:
final
Fee:
$5,370
Permit Type:
N/A
Building Type:
N/A
Tubbs-adobe fire 2017: rebuild 1325 sf single family dwelling original was 1500 sf 516 sf garage and 156 sf covered porches planning comment:.rear setback ok at 5 per previous nonconforming. needs covenant recorded prior to cert of occupancy re: eaves overhanging 5 drainage easement at southeast corner unless redesigned to bring eaves back out of the easement the following conditions ... see more
Valuation:
$300,000
Permit #:
B18-5365
Status:
final
Fee:
$4,993
Permit Type:
N/A
Building Type:
N/A
Tubbs-adobe fire 2017: rebuild 1792 sf sfd; original was 1164 sf; difference of 628 sf; 525 sf garage; and 96 sf covered porch the following conditions are required: backflow: fire sprinklers will be required so a minimum 1” backflow device will be required per current city standard 875. an in-line check backflow per sr water standard. 875 may be installed when only protecting the fir... see more
Valuation:
$300,000
Permit #:
B18-5892
Status:
final
Fee:
$5,278
Permit Type:
N/A
Building Type:
N/A
Remove partition wall between master bedroom & guest bedroom to make one master bedroom. new walk in closet
Valuation:
N/A
Permit #:
BLD22-3678
Status:
final
Fee:
$1,497
Permit Type:
N/A
Building Type:
N/A
Tubbs-adobe fire 2017: 1762 sf single-story sfd; 480 sf garage. original sf 1348 the following conditions are required: backflow: fire sprinklers will be required so a minimum 1” backflow device will be required per current city standard 875 water meter: there is an existing 5/8” water meter serving this parcel. this will need to be upsized to either a ¾” meter or 1” meter based upon ... see more
Valuation:
$450,000
Permit #:
B18-1715
Status:
final
Fee:
$5,114
Permit Type:
N/A
Building Type:
N/A
Building revision: structural changes to guest cottage which include cantilevered pop out closet
Valuation:
N/A
Permit #:
BLD21-2323.R01
Status:
complete
Fee:
$657
Permit Type:
N/A
Building Type:
N/A
New guest cottage (488 sq ft)
Valuation:
N/A
Permit #:
BLD21-2323
Status:
final
Fee:
$5,073
Permit Type:
N/A
Building Type:
N/A
In one 12'x15 bedroom remove sheetrock upgrade electrical (4) plugs (1) switch (1) light and remove a 2'6x4 window framing it in and install new insulation and sheetrock and patch stucco on exterior. contractor indicates that remaining windows meets egress requirements. at exterior front porch - demolish existing 6'x16 concrete porch and replace like-for-like
Valuation:
N/A
Permit #:
B15-1117
Status:
final
Fee:
$201
Permit Type:
N/A
Building Type:
N/A
4/26/16 - change to sf's replacement single family dwelling 994 sf/garage 570 sf/cov. porch 116 sf deck 476 sf - replacement 840 sf single family dwelling w/attached 395 sf garage 122 cov. porch 323 sf deck ( dem15-0097 demolish single family dwelling 768 sq ft)
Valuation:
N/A
Permit #:
BLD15-2049
Status:
final
Fee:
$7,519
Permit Type:
N/A
Building Type:
N/A
Replace 6'8 x 8 sliding glass window remove 4 x 8 window and replace with 6 x 8 sliding glass window in existing window space. addition exterior led light
Valuation:
$3,500
Permit #:
B16-1830
Status:
final
Fee:
$155
Permit Type:
N/A
Building Type:
N/A
Remodel both existing bathrooms. install new recessed lighting in living room family room and bedrooms. replace (12) exisrting windows. replace existing furnace and water heater. replace damaged drywall in in lower bedrooms. upgrade existing electrical service to 200 amps. replace existing subpanel in garage
Valuation:
N/A
Permit #:
BLD2010-00983
Status:
FINALED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New barn 2100 sq ft w/full bathroom w 800 sq ft covered paddock
Valuation:
N/A
Permit #:
BLD14-3865
Status:
final
Fee:
$3,924
Permit Type:
N/A
Building Type:
N/A
Legalize wall removal to make single family dwelling 2 bedrooms
Valuation:
N/A
Permit #:
DEM21-0424
Status:
final
Fee:
$325
Permit Type:
N/A
Building Type:
N/A
Conditioned art studio w covered porch
Valuation:
N/A
Permit #:
BLD14-1948
Status:
final
Fee:
$4,112
Permit Type:
N/A
Building Type:
N/A
Convert exsiting garage to living space 633 sq ft - remodel great room master bed entryway. estimated 34.47%
Valuation:
N/A
Permit #:
BLD08-1470
Status:
final
Fee:
$2,786
Permit Type:
N/A
Building Type:
N/A
Remodel 990 sf & addition 16 sqft
Valuation:
N/A
Permit #:
BLD13-5332
Status:
final
Fee:
$2,981
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
BI-2010-2306
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Addition to enlarge (2) bedrooms add 1.5 bath reframe roof (entire) & reconvert garage back to a gar
Valuation:
$42,078
Permit #:
BI-2008-3890
Status:
final
Fee:
$2,961
Permit Type:
N/A
Building Type:
N/A
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Projects
A-1 Builders Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
A-1 Builders License info
Verified License
| License # | 736639 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for A-1 Builders at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 922653 |
| Status | Inactive |
| State | California |
| Type | General Building |
| 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 A-1 Builders at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 987139 |
| Status | Inactive |
| State | California |
| Type | General Building, Fencing |
| 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 A-1 Builders at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
102
BuildZoom Score
Bonded
| Bonded Agent | Suretec Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Benchmark Insurance Company |
43
Permits
- Building permit records show that A-1 Builders has worked on 43 permitted projects.
A-1 Builders Employees
AJ
Arnoldo Hernandez Jr
Sole Owner
AJ
Arnoldo Hernandez Jr
Sole Owner
CM
Craig Brian Mason
Owner
GS
Gerald Wayne House Sr
Rme
GB
Gurinder Singh Bains
Owner
PM
Paula Ann Mason
Officer