Updated: Jun 06, 2026
Location and Projects
Address
3193 Diablo Ave, Hayward, CA, 94545
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Castleworks Home Services Photos
Castleworks Home Services Plumber
CastleWorks Norcal (formally Affordable Water Heaters & Plumbing) has been serving the Greater San Francisco Bay area since 1995 with quality hot water heater repair, replacement and installation. We offer fast and reliable residential/commercial tankless Water Heater installation, 24/7. Call now and ask about our Same-Day Water Heater Service!
Business Telephone:
+1 833-921-9006
From BuildZoom: Castleworks Home Services, 3193 Diablo Ave, Hayward, CA holds a Warm Air Heating, Ventilating And Air Conditioning 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 Castleworks Home Services, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Castleworks Home Services Contact Information
Phone Number: (833) 921-9006
Address: 3193 Diablo Ave, Hayward, CA 94545
Castleworks Home Services Hayward
Quality
116
98th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Castleworks Home Services has a BuildZoom score of 116, which places them above 98% of 336,931 contractors in California.
Activity
|
137 projects
|
2025 |
|
122 projects
|
2024 |
|
97 projects
|
2023 |
Our building permit records indicate that Castleworks Home Services has worked on at least
356.0 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
|
215 projects
|
Plumbing projects |
Analyzing permits over the last 4 years shows that Castleworks Home Services mostly works on
plumbing project
projects.
Pricing
|
85 projects
|
< $5k |
|
37 projects
|
$5k-$20k |
|
23 projects
|
$20k-$50k |
|
4 projects
|
$50k-$100k |
The typical size of their permits is approximately $4,512. 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.
Building Permits by Castleworks Home Services
This is a sample of this contractor's permits. Click here to access their complete permit history.
(e-plan) 50 gallon water heater changeout like for like in garage. installed per manufacturing specifications. manufacturing data sheets and installation instructions must be provided on-site
Valuation:
N/A
Permit #:
PLM-2025-00011
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
(e-plan) 50 gallon water heater changeout like for like- in garage. installed per manufacturing specifications. manufacturing data sheets and installation instructions must be provided on-site
Valuation:
N/A
Permit #:
PLM-2025-00008
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Residential hvac - heating ventilation air conditioning
2025-06-03
Replace 2 condensers 14/17 seer 2 coils 14/17 seer 2 furnace 80% afue install 16 supply ducts 0 returns
Valuation:
$44,619
Permit #:
M25-032446
Status:
issued
Fee:
$258
Permit Type:
N/A
Building Type:
N/A
Replace 4-ton condenser in left side yard (same location). replace 4-ton fan coil & furnace indoor (same location)
Valuation:
$24,674
Permit #:
BS2501012
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
Single family res...
Residential hvac - heating ventilation air conditioning
2025-08-15
Replace condenser coil mini-split to air handler seer 17 28.4 seer
Valuation:
$26,973
Permit #:
M25-032836
Status:
issued
Fee:
$434
Permit Type:
N/A
Building Type:
N/A
Residential hvac - heating ventilation air conditioning
2025-09-29
Replace 2 heat pump condensers/2 coils/2 air handlers 19 seer
Valuation:
$51,134
Permit #:
M25-033055
Status:
issued
Fee:
$307
Permit Type:
N/A
Building Type:
N/A
Residential hvac - heating ventilation air conditioning
2025-12-03
Replace condenser air handler seer 18.5 hspf 9.5 r8 ducts
Valuation:
$35,000
Permit #:
M25-032834
Status:
final
Fee:
$248
Permit Type:
N/A
Building Type:
N/A
Residential hvac - heating ventilation air conditioning
2025-11-24
Replace condenser coil furnace seer 19 afue 80%
Valuation:
$26,364
Permit #:
M25-032822
Status:
final
Fee:
$238
Permit Type:
N/A
Building Type:
N/A
Residential hvac - heating ventilation air conditioning
2025-08-15
Replace condenser coil furnace seer 19 afue 80%
Valuation:
$29,316
Permit #:
M25-032833
Status:
issued
Fee:
$241
Permit Type:
N/A
Building Type:
N/A
Permit for water heater changeout 50 gal in garage. like for like. field verify for code compliance
Valuation:
$2,896
Permit #:
BR25-0013
Status:
final
Fee:
$78
Permit Type:
N/A
Building Type:
N/A
(e-plan) replace sewer line - 80 4 diameter. trenchless pipe bursting. all work within property lines
Valuation:
N/A
Permit #:
PLM-2025-00013
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Residential hvac - heating ventilation air conditioning
2025-10-24
2 condensers 14 seer 2 coils 14 seer 2 furnace 96% & 80%
Valuation:
$32,952
Permit #:
M24-031619
Status:
expired
Fee:
$441
Permit Type:
N/A
Building Type:
N/A
Residential hvac - heating ventilation air conditioning
2025-09-02
Replace condenser coil furance 19 seer 80 % afue
Valuation:
$30,534
Permit #:
M25-032699
Status:
final
Fee:
$243
Permit Type:
N/A
Building Type:
N/A
Residential hvac - heating ventilation air conditioning
2025-10-24
Replace 2 condensers coil 2 air handlers seer 18 & 19 8 & 8.5 hspf
Valuation:
$51,555
Permit #:
M25-032420
Status:
final
Fee:
$463
Permit Type:
N/A
Building Type:
N/A
Replace traditional water heater for tankless unit in garage like for like (e-review)
Valuation:
$7,504
Permit #:
CBR2025-0029
Status:
issued
Fee:
N/A
Permit Type:
P/m/e
Building Type:
N/A
Residential hvac - heating ventilation air conditioning
2025-10-11
Replace condenser coil furnace 20 seer 80% afue
Valuation:
$23,457
Permit #:
M24-031580
Status:
issued
Fee:
$234
Permit Type:
N/A
Building Type:
N/A
Scope of work: 2377 dobern ave. only - r/r water heater - located in the garage
Valuation:
N/A
Permit #:
2025 091196 RS
Status:
issued
Fee:
N/A
Permit Type:
Duplex
Building Type:
N/A
Residential hvac - heating ventilation air conditioning
2025-02-26
Replace condenser/coil 18 seer/furnace (under home) 80%
Valuation:
$26,330
Permit #:
M25-031912
Status:
final
Fee:
$238
Permit Type:
N/A
Building Type:
N/A
Residential hvac - heating ventilation air conditioning
2024-12-27
Condenser coil furnace 17 seer 80%afue
Valuation:
$20,000
Permit #:
M24-031621
Status:
final
Fee:
$230
Permit Type:
N/A
Building Type:
N/A
Install 2.5-ton 18 seer mini split with 2 air handlers
Valuation:
$20,673
Permit #:
BD25-0682
Status:
final
Fee:
$299
Permit Type:
Repair (m e p)
Building Type:
N/A
Castleworks Home Services Reviews
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Verified License
BuildZoom confirmed this contractor's license
Castleworks Home Services License info
Verified License
| License # | 1155228 |
| Status | Active |
| State | California |
| Type | Warm Air Heating, Ventilating And Air Conditioning |
| Date Issued | 05-15-2026 |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Castleworks Home Services at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 1088921 |
| Status | Active |
| State | California |
| Type | Warm Air Heating, Ventilating And Air Conditioning |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for Castleworks Home Services at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 1085045 |
| Status | Active |
| State | California |
| Type | Warm Air Heating, Ventilating And Air Conditioning |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Castleworks Home Services 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 | This License Filed A Contractor's Bond With |
| Bond Value | $25,000 |
Insured
| Workers Comp Provider | Stonington Insurance Company |
459
Permits
- Building permit records show that Castleworks Home Services has worked on 459 permitted projects.