Updated: May 01, 2026
Location and Projects
Address
16816 SAN JOSE STREET, Granada Hills, CA, 91344
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Tassio William HVAC/Mechanical Contractor
Tassio William, 16816 San Jose St, Granada Hills, CA (Employees: Amy Rebecca Tassio and William Patrick Tassio) holds a license and 2 other licenses according to the California license board.
Their BuildZoom score of 116 ranks in the top 2% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Tassio William, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Tassio William Contact Information
Phone Number: (818) 368-1600
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Address: 16816 SAN JOSE STREET, Granada Hills, CA 91344
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Tassio William Granada Hills
Quality
116
98th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Tassio William has a BuildZoom score of 116, which places them above 98% of 336,931 contractors in California.
Activity
|
43 projects
|
2025 |
|
43 projects
|
2024 |
|
14 projects
|
2023 |
Our building permit records indicate that Tassio William has worked on at least
100.0 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.
Experience
|
93 projects
|
HVAC projects |
|
19 projects
|
Mechanical projects |
Analyzing permits over the last 4 years shows that Tassio William mostly works on
hvac project
and mechanical project
projects.
Pricing
|
3 projects
|
$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.
This is a sample of this contractor's permits. Click here to access their complete permit history.
Air conditioning changeout right sideyard coil fau change out in closet like for like same locations.state of california energy commission: the central air conditioner or furnace installed or replaced must have ducts inspected for leaks. hvac must meet state of california energy requirements
Valuation:
N/A
Permit #:
MEC-2025-00312
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Changeout 4 ton condenser on right side of yard indoor coil furnace is closet and 1500 sq. ft. of ducts. state of california energy commission: the central air conditioner or furnace installed or replaced must have ducts inspected for leaks. hvac must meet state of california energy requirements
Valuation:
N/A
Permit #:
MEC-2025-00296
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Condenser 2 ton changeout backyard indoor coil 2 ton furnace changeout in interior closet. like for like same locations. state of california energy commission: the central air conditioner or furnace installed or replaced must have ducts inspected for leaks. hvac must meet state of california energy requirements
Valuation:
N/A
Permit #:
MEC-2025-00159
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Electrical for changeout (2) 5-ton heat pump condenser no. 1 on roof heat pump condenser no. 2 on roof same location. changeout air handler no. 1 and no. 2 in attic. like for like same location. new units are same weight or less than existing 199 lbs each. customer to provide specs of new unit for inspector state of california energy commission: the central air conditioner or furnace ... see more
Valuation:
N/A
Permit #:
ELE-2025-00344
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Change out condenser 4 ton in backyard. indoor coil needs electrical. furnace 80k btu in closet. same locations state of california energy commission: the central air conditioner or furnace installed or replaced must have ducts inspected for leaks. hvac must meet state of california energy requirements
Valuation:
N/A
Permit #:
MEC-2025-00595
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Electrical - change out condenser 4 ton in backyard. indoor coil needs electrical. furnace 80k btu in closet. same locations state of california energy commission: the central air conditioner or furnace installed or replaced must have ducts inspected for leaks. hvac must meet state of california energy requirements
Valuation:
N/A
Permit #:
ELE-2025-01065
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Changeout 5-ton condenser in backyard indoor coil furnace in attic and ducts same location like for like. state of california energy commission: the central air conditioner or furnace installed or replaced must have ducts inspected for leaks. hvac must meet state of california energy requirements
Valuation:
N/A
Permit #:
MEC-2024-01385
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Changeout (2) 5-ton heat pump condenser no. 1 on roof heat pump condenser no. 2 on roof same location. changeout air handler no. 1 and no. 2 in attic. like for like same location. new units are same weight or less than existing 199 lbs each. customer to provide specs of new unit for inspector state of california energy commission: the central air conditioner or furnace installed or re... see more
Valuation:
N/A
Permit #:
MEC-2024-01169
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Remove and replace 5 ton condenser on left side yard and indoor fau/coil in attic. all like for like same locations per plan
Valuation:
N/A
Permit #:
MEC-2024-00528
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace 5-ton heat pump - left side yard replace air handler (54.5k btus) - closet w/duct (10)
Valuation:
N/A
Permit #:
25044-90000-00133
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Replace 5-ton air conditioning - right side yard coil replace fau (80k btus) - closet
Valuation:
N/A
Permit #:
25044-90000-03591
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Replace 3-ton air conditioning - right side yard replace 4-ton air conditioning - right side yard replace fau (60k btus) - attic replace fau (80k btus) - attic w/duct (11)
Valuation:
N/A
Permit #:
24044-90000-11234
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Changeout heat pump condenser (3-ton) in right side yard. changeout unit to air handler (33k btu's) in attic. includes new ducting and new electrical. (on separate permit.)
Valuation:
N/A
Permit #:
MEC-2024-00446
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace 4-ton heat pump - right side yard rpeplace air handler (48k btus) - garage
Valuation:
N/A
Permit #:
25044-90000-01773
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Replace 3-ton heat pump - left sid eyard replace air handler (36k btus) - closet
Valuation:
N/A
Permit #:
25044-90000-00455
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
(2)3.5 ton air conditioning on ride side yard and (2)4 ton coil/80k fauin attic (143 lb). 15 supply ducting replacement. like for like units same locations per plan
Valuation:
N/A
Permit #:
MEC-2024-01259
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace 3-ton heat pump - right side yard replace 4-ton heat pump - right side yard replace air handler (33k btus) - garage replace air handler (48k btus) - attic
Valuation:
N/A
Permit #:
24044-90000-15183
Status:
issued
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Replace 5-ton air conditioning - roof coil replace 4-ton air conditioning - roof coil replace fau (80k btus) - attic relocate fau (80k btus) - attic w/duct (9)
Valuation:
N/A
Permit #:
24044-90000-09092
Status:
issued
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Replace 4-ton heat pump - back yard replace 3-ton heat pump - back yard replace air handler (45k btus) - attic replace air handler (36k btus) - attic
Valuation:
N/A
Permit #:
24044-90000-11423
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Replace 5-ton heat pump - right side yard replace air handler (60k btus) - attic w/duct (2)
Valuation:
N/A
Permit #:
24044-90000-17031
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
Tassio William License info
Verified License
| License # | CA845277 |
| Status | Active |
| State | California |
- BuildZoom has not verified this license since June, 2015.
Verify this license's status for Tassio William at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | NAT-F174107-1 |
| Status | Inactive |
| Nation | Environmental Protection Agency |
| Type | Renovation |
- According to the United States Environmental Protection Agency, 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 Tassio William at the United States Environmental Protection Agency.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 845277 |
| Status | Inactive |
| State | California |
| Type | Warm Air Heating, Ventilating And Air Conditioning |
- 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 Tassio William at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
116
BuildZoom Score
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Farmers Insurance Exchange |
504
Permits
- Building permit records show that Tassio William has worked on 504 permitted projects.
Tassio William Employees
AT
Amy Rebecca Tassio
Officer
WT
William Patrick Tassio
Sole Owner