Updated: Jun 04, 2026
Location and Projects
Address
110 W FREMONT ST #701, Stockton, CA, 95202
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Delta Sierra HVAC/Mechanical Contractor
Delta Sierra Inc, 110 W Fremont St, Stockton, CA (Employees: Bill Thomas Dye, James Barry Synnestuedt, and Michael Ray Woods) holds a Warm Air Heating, Ventilating And Air Conditioning license and 1 other license according to the California license board.
Their BuildZoom score of 110 ranks in the top 4% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Delta Sierra Inc, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Delta Sierra Inc Contact Information
Phone Number: (916) 872-5479
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Address: 110 W FREMONT ST #701, Stockton, CA 95202
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Delta Sierra Inc Stockton
Quality
110
96th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Delta Sierra Inc has a BuildZoom score of 110, which places them above 96% of 336,931 contractors in California.
Activity
|
158 projects
|
2025 |
|
56 projects
|
2024 |
Our building permit records indicate that Delta Sierra Inc has worked on at least
214.0 projects 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.
Experience
|
206 projects
|
HVAC projects |
|
65 projects
|
Mechanical projects |
Analyzing permits over the last 4 years shows that Delta Sierra Inc mostly works on
hvac project
and mechanical project
projects.
Pricing
|
13 projects
|
< $5k |
|
133 projects
|
$5k-$20k |
|
12 projects
|
$20k-$50k |
The typical size of their permits is approximately $9,099. 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.
This is a sample of this contractor's permits. Click here to access their complete permit history.
2 hvac change-outs. 2 system change out - 1 hp split system change out - like for like (outside ground and attic of home) 1 hp package unit change out - like for like (ground mount) both are ductless installations. cf1r attached for both systems no duct work permitted. change-out split system to split system. the existing unit shall be removed. the new unit shall be placed in the same... see more
Valuation:
$27,000
Permit #:
RES-2509986
Status:
final
Fee:
$272
Permit Type:
N/A
Building Type:
Single family
E-permit: change-out split system to heat pump (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%. # of systems is 1
Valuation:
$29,190
Permit #:
BP25-00428
Status:
final
Fee:
$185
Permit Type:
N/A
Building Type:
N/A
E-permit: cut-in mini-split system. a unit will be installed in a new location. this unit will be fully screened behind a solid fence or alternatively behind shrubs or buildings providing screening resulting in the unit not being visible from any street views. roof top installations will be located on back roof slopes and below ridge lines and not visible from street views. # of syste... see more
Valuation:
$18,700
Permit #:
BP25-02469
Status:
final
Fee:
$184
Permit Type:
N/A
Building Type:
N/A
E-permit: change-out w/new ducts 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%. # of systems is 1
Valuation:
$15,800
Permit #:
BP25-01884
Status:
final
Fee:
$184
Permit Type:
N/A
Building Type:
N/A
E-permit: 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%. # of systems is 3
Valuation:
$20,942
Permit #:
BP25-04109
Status:
final
Fee:
$550
Permit Type:
N/A
Building Type:
N/A
E-permit: change-out roof mount to roof mount. 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%. cfm output of each system is <2 000 cfm building has fire sprinkler system (yes) building has fire alarm system (yes). # of systems is 1
Valuation:
$13,500
Permit #:
BP25-03659
Status:
issued
Fee:
$184
Permit Type:
N/A
Building Type:
N/A
E-permit: 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%. # of systems is 3
Valuation:
$22,521
Permit #:
BP25-03535
Status:
final
Fee:
$550
Permit Type:
N/A
Building Type:
N/A
E-permit: 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%. # of systems is 1
Valuation:
$16,565
Permit #:
BP25-03333
Status:
final
Fee:
$184
Permit Type:
N/A
Building Type:
N/A
E-permit: 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%. # of systems is 2
Valuation:
$16,861
Permit #:
BP25-03223
Status:
final
Fee:
$367
Permit Type:
N/A
Building Type:
N/A
E-permit: change-out split system to condenser/coil only. 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%. # of systems is 1
Valuation:
$9,000
Permit #:
BP25-02387
Status:
final
Fee:
$184
Permit Type:
N/A
Building Type:
N/A
E-permit: 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%. # of systems is 1
Valuation:
$18,475
Permit #:
BP25-01835
Status:
final
Fee:
$184
Permit Type:
N/A
Building Type:
N/A
E-permit: 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%. # of systems is 1
Valuation:
$16,000
Permit #:
BP25-01306
Status:
final
Fee:
$184
Permit Type:
N/A
Building Type:
N/A
E-permit: change-out ground mount to ground mount. 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%. # of systems is 1
Valuation:
$17,000
Permit #:
BP25-00402
Status:
final
Fee:
$184
Permit Type:
N/A
Building Type:
N/A
E-permit: 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%. # of systems is 1
Valuation:
$8,063
Permit #:
BP25-04262
Status:
final
Fee:
$184
Permit Type:
N/A
Building Type:
N/A
E-permit: 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%. # of systems is 1
Valuation:
$11,794
Permit #:
BP25-03717
Status:
final
Fee:
$184
Permit Type:
N/A
Building Type:
N/A
E-permit: 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%. # of systems is 1
Valuation:
$14,644
Permit #:
BP25-03444
Status:
final
Fee:
$184
Permit Type:
N/A
Building Type:
N/A
E-permit: 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%. # of systems is 1
Valuation:
$14,122
Permit #:
BP25-03325
Status:
final
Fee:
$184
Permit Type:
N/A
Building Type:
N/A
E-permit: 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%. # of systems is 1
Valuation:
$11,000
Permit #:
BP25-02620
Status:
final
Fee:
$184
Permit Type:
N/A
Building Type:
N/A
Change-out condenser/coil only (split system) to condenser/coil only (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:
$3,608
Permit #:
RES-2507038
Status:
final
Fee:
$202
Permit Type:
N/A
Building Type:
Single family
Change-out split system to split system (all-electric heat pump). 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:
$15,250
Permit #:
RES-2506986
Status:
final
Fee:
$238
Permit Type:
N/A
Building Type:
Single family
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BZ Score
$11.9K
Avg Project
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Projects
149
BZ Score
$10.5K
Avg Project
-
Projects
146
BZ Score
$9.2K
Avg Project
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Projects
Delta Sierra Inc Reviews
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Verified License
BuildZoom confirmed this contractor's license
Delta Sierra Inc License info
Verified License
| License # | 1085319 |
| Status | Active |
| State | California |
| Type | Warm Air Heating, Ventilating And Air Conditioning |
| Business Type | Corporation |
- BuildZoom verified this license was active as of January 2026.
Verify this license's status for Delta Sierra 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 # | 603243 |
| 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 Delta Sierra Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
110
BuildZoom Score
Bonded
| Bonded Agent | This License Filed A Contractor's Bond With |
| Bond Value | $7,500 |
Insured
| Workers Comp Provider | Employers Preferred Insurance Company |
214
Permits
- Building permit records show that Delta Sierra Inc has worked on 214 permitted projects.
Delta Sierra Inc Employees
BD
Bill Thomas Dye
Rmo / Ceo / Pres
JS
James Barry Synnestuedt
Officer
MW
Michael Ray Woods
Sole Owner