Updated: May 13, 2026
Location and Projects
Address
95 TAMALPAIS AVENUE, San Anselmo, CA, 94960
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Ainsworth Construction
Retired/Out of Business
From BuildZoom:
Ainsworth Construction at 95 TAMALPAIS AVENUE, San Anselmo, CA 94960, held a General Contractor license (#445219) with the California contractors license board with an expiration date of 08-31-1995. We last verified the license was expired on 05-12-2026.
Their BuildZoom score is 0 because we haven’t been able to verify an active license. As a result, they’re not ranked in the top 50% of 336,931 California contractors.
If you’re thinking about hiring them, we recommend double-checking their license status with your local licensing authority. Alternatively, use our project planner to be easily matched to qualified, licensed professionals in your area.
Ainsworth Construction Services
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Ainsworth Construction Contact Information
Phone Number: (858) 688-9579
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Address: 95 TAMALPAIS AVENUE, San Anselmo, CA 94960
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Ainsworth Construction San Anselmo
Quality
Alert*
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
*No active license on file. If you are Ainsworth Construction, click “This is My Business” to update your information.
Activity
|
1 project
|
2025 |
|
7 projects
|
2024 |
|
4 projects
|
2023 |
Our building permit records indicate that Ainsworth Construction has worked on at least
12.0 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
|
$5k-$20k |
|
1 project
|
$20k-$50k |
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.
Ainsworth Construction Reviews
1 out of 5 stars, based on
1
review
-
By MattJuly 16, 2019Landscaping$160,000
Building Permits by Ainsworth Construction
This is a sample of this contractor's permits. Click here to access their complete permit history.
Bathroom remodel
Valuation:
$35,000
Permit #:
CC21-062
Status:
final
Fee:
$1,598
Permit Type:
Construction and ...
Building Type:
N/A
Rear one story 262 sf addition remodel baths & kitchen
Valuation:
N/A
Permit #:
B2208-178
Status:
final
Fee:
N/A
Permit Type:
Alter-sfd
Building Type:
N/A
Remove and replace 6 tall fence to straighten the fence
Valuation:
N/A
Permit #:
F2024-0003
Status:
issued
Fee:
$947
Permit Type:
New
Building Type:
N/A
Paver pathway
Valuation:
$6,500
Permit #:
BR21-235
Status:
final
Fee:
$871
Permit Type:
Construction only
Building Type:
N/A
Building entry gate - see permit b2024-0312
Valuation:
N/A
Permit #:
B2024-0147
Status:
withdrawn
Fee:
$2,832
Permit Type:
Residential
Building Type:
N/A
Remodel kitchen of apartment and replace three windows
Valuation:
N/A
Permit #:
B2023-0359
Status:
issued
Fee:
$3,526
Permit Type:
Residential
Building Type:
N/A
Front and side yard at 5 bungalow
Valuation:
N/A
Permit #:
F2024-0021
Status:
final
Fee:
$113
Permit Type:
New
Building Type:
N/A
Upgrading (remove and replace) existing hvac system
Valuation:
N/A
Permit #:
M2023-0133
Status:
filed
Fee:
$180
Permit Type:
Residential
Building Type:
N/A
Replace stucco and flashing
Valuation:
$150,000
Permit #:
BR17-435
Status:
final
Fee:
$4,481
Permit Type:
Construction only
Building Type:
N/A
Replace three showers to fix plumbing in units 17 19 21
Valuation:
N/A
Permit #:
P2023-0027
Status:
issued
Fee:
$164
Permit Type:
Residential
Building Type:
N/A
Install 2 new heat pumps for 17/19 ancho vista
Valuation:
N/A
Permit #:
M2023-0018
Status:
final
Fee:
$173
Permit Type:
Residential
Building Type:
N/A
Repair garage back to the original state due to vehicular damage
Valuation:
$33,232
Permit #:
20210224
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Debri box for landscaping
Valuation:
N/A
Permit #:
ENC2024-0169
Status:
triage
Fee:
$162
Permit Type:
Non utility
Building Type:
N/A
40 millbrae - demolition of house garage & air conditioning pavement
Valuation:
N/A
Permit #:
B2021-0426
Status:
issued
Fee:
$702
Permit Type:
Residential
Building Type:
N/A
230 sf kitchen remodel
Valuation:
$34,500
Permit #:
BDR1905-002
Status:
final
Fee:
$1,362
Permit Type:
Kitchen remodel
Building Type:
N/A
Grading as required after (e) home is demoed
Valuation:
N/A
Permit #:
GH2022-0012
Status:
approved
Fee:
$273
Permit Type:
25-100 cy
Building Type:
N/A
Kitchen remodel
Valuation:
$35,000
Permit #:
BR18-238
Status:
final
Fee:
$2,490
Permit Type:
Full construction
Building Type:
N/A
Investigate leaking windows
Valuation:
$500
Permit #:
BR17-392
Status:
final
Fee:
$203
Permit Type:
Construction only
Building Type:
N/A
Minor kitchen remodel
Valuation:
N/A
Permit #:
B2020-0164
Status:
final
Fee:
$1,214
Permit Type:
N/A
Building Type:
N/A
For a crane on 7-18 thru 7-26
Valuation:
N/A
Permit #:
ENC2024-0203
Status:
filed
Fee:
$218
Permit Type:
Utility overhead
Building Type:
N/A
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Ainsworth Construction License info
Inactive License
| License # | 445219 |
| 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 Ainsworth 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 # | 525262 |
| 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 Ainsworth 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 # | 644404 |
| 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 Ainsworth Construction at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
ALERT*
BuildZoom Score
- How the BuildZoom Score works
- *No active license on file. If you are Ainsworth Construction, click “This is My Business” to update your information.
Bonded
| Bonded Agent | Suretec Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Amguard Insurance Company |
56
Permits
- Building permit records show that Ainsworth Construction has worked on 56 permitted projects.
Ainsworth Construction Employees
CB
Christopher P Beaton
General Partner
DA
Deborah Bakosh Ainsworth
Officer
EA
Eric William Ainsworth
Rmo/Ceo/Pres
WA
William Louis Ainsworth
Owner
WI
William Louis Ainsworth Iii
Sole Owner
I hired Eric’s wife Deborah Bakosh to do the landscaping portion of a total remodel. Eric helped with some of the drainage. Deborah laid an artificial turf for us but the seams were done very poorly. She agreed and said she’d fix them but hasn’t followed up to schedule the work. It’s been 7 months now since I highlighted the issue. All she wants is for me to pay the final invoice before she’ll fix it. I’m worried given the lack of desire to fix the problem with the money outstanding (which is roughly the cost of the lawn material), that there will be even less once paid. I’m at a loss. We’ve been advised that it’s normal to hold back final payment till the work is completed...