Updated: May 11, 2026
Location and Projects
Address
18744 Lamson Rd, Castro Valley, CA, 94546
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Nowak's Heating & Air Conditioning Inc Photos
Nowak's Heating & Air Conditioning Inc
We have been in business since 1981.
We service, install, repair and maintain all residential and commercial heating, cooling and ventilation systems through out the San Francisco Bay Area.
We service YOUR brand Heater or Air Conditioner!
We provide a 5 year warranty on our labor on any installation.
From BuildZoom:
Nowak's Heating & Air Conditioning Inc at 18744 Lamson Rd, Castro Valley, CA 94546, held a HVAC/Mechanical Contractor license (#423423) with the California contractors license board with an expiration date of 06-30-1986. We last verified the license was expired on 05-10-2026.
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.
Nowak's Heating & Air Conditioning Inc Services
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Nowak's Heating & Air Conditioning Inc Contact Information
Phone Number: (510) 504-7950
Address: 18744 Lamson Rd, Castro Valley, CA 94546
Nowak's Heating & Air Conditioning Inc Reviews
5 out of 5 stars, based on
1
review
-
By Paul N.October 22, 2014
Building Permits by Nowak's Heating & Air Conditioning Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
Chinese american school - replace two (2) roof top air conditioning units with smaller units onto smaller curbs ***7/5/12-added replacement of 6 roof top package hvac units connected to existing gas electrical & duct work onto existing curbs
Valuation:
$80,000
Permit #:
M12-0049
Status:
final
Fee:
$1,011
Permit Type:
N/A
Building Type:
N/A
Legalize unpermitted suspended unit heater in shop area. *ok to issue permit as per dennis z. to be
Valuation:
$0
Permit #:
BI-2014-0536
Status:
final
Fee:
$252
Permit Type:
N/A
Building Type:
N/A
Unit g - replace electric wall heater
Valuation:
$1,100
Permit #:
CB15-0703
Status:
final
Fee:
$441
Permit Type:
N/A
Building Type:
N/A
Replace 3 water heaters flues and 2 dryer vents due to fire
Valuation:
$0
Permit #:
BI-2014-2716
Status:
issued
Fee:
$298
Permit Type:
N/A
Building Type:
N/A
Unit #a: new central heat furnace with new duct work; 4 new electrical circuits 2 sub-panel upgrades from fuses to breakers
Valuation:
N/A
Permit #:
PM20130809150
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Remove existing wall furnaces and install a new split air system
Valuation:
$8,500
Permit #:
B15-1139
Status:
final
Fee:
$415
Permit Type:
N/A
Building Type:
N/A
Staples tenant improvement: replace hvac equipment addition access ramp to rear entrance addition roll-up delivery door to rear relocate store front entry doors
Valuation:
$780,000
Permit #:
B2007-03687
Status:
Closed Complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
14-ce-3886: water heater replacement legalizationhandout given to applicant
Valuation:
$0
Permit #:
201500897
Status:
ISSUED
Fee:
$445
Permit Type:
N/A
Building Type:
N/A
Move (e) class i exhaust blowers & gease duct from roof, combine mep #473348 in use on 11/17/2005
Valuation:
$111,000
Permit #:
200601122058
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
05 - food/beverag...
Permit value$5kmessage contractor remove and replace shower install fan new shower valve
Valuation:
N/A
Permit #:
BLD2013-00488
Status:
N/A
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Permit value$2.5kmessage contractor dryrot repair in toilet area in hall bathroom
Valuation:
N/A
Permit #:
BLD2013-00410
Status:
N/A
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace fau of 96% efficiency 1 flue 1 condensate drain
Valuation:
N/A
Permit #:
RM1300770
Status:
final
Fee:
$174
Permit Type:
N/A
Building Type:
N/A
Two-story + mezzanine office addition to an existing one-story office building. addition electrical permit. sbb added plumbing permit. sbb
Valuation:
$275,000
Permit #:
B2004-00210
Status:
Closed Complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace the forced air furnace
Valuation:
$0
Permit #:
BI-2014-0593
Status:
final
Fee:
$187
Permit Type:
N/A
Building Type:
N/A
Replace furnace in garage
Valuation:
$0
Permit #:
BI-2014-1254
Status:
issued
Fee:
$187
Permit Type:
N/A
Building Type:
N/A
Building replace existing roof mounted heat pumps with new units - 3 @ 250 lbs (3 ton) 2 @ 350 lbs (5 ton). (rgs)
Valuation:
N/A
Permit #:
BLD2004-07018
Status:
final
Fee:
$182
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
BI-2011-3391
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace exhaust blower on the roof and make up air unit. for commerical kitchen. install new 8 ton air conditioning unit
Valuation:
$0
Permit #:
PM20090507202
Status:
COMPLETED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
T.i. for noah's new york bagels - oakland city center. casework and kitchen equip. to be installed. - mech for.
Valuation:
$0
Permit #:
M9701068
Status:
Final
Fee:
$267
Permit Type:
N/A
Building Type:
N/A
Replace fau of 96% efficiency 1 flue 1 condensate drain
Valuation:
N/A
Permit #:
RM1300770
Status:
FINAL
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Nowak's Heating & Air Conditioning Inc License info
Inactive License
| License # | 423423 |
| Status | Inactive |
| State | California |
| Type | Warm Air Heating, Ventilating And Air Conditioning, Sheet Metal |
| 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.
Check this license's status for Nowak's Heating & Air Conditioning 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 # | 495651 |
| Status | Inactive |
| State | California |
| Type | Warm Air Heating, Ventilating And Air Conditioning, Sheet Metal |
| 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.
Check this license's status for Nowak's Heating & Air Conditioning Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
ALERT*
BuildZoom Score
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- *No active license on file. If you are Nowak's Heating & Air Conditioning Inc, log in and update your license info in the “Edit Profile” tab.
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
156
Permits
- Building permit records show that Nowak's Heating & Air Conditioning Inc has worked on 156 permitted projects.
Nowak's Heating & Air Conditioning Inc Employees
NH
Nowak's Heating
Owner
Endorsed by These Contractors
Castro Valley, CA
Buying a new central heat system is not something you do every year, so I was a little nervous learning what I needed to know before I got mine installed. I interviewed 3 companies and selected Nowak Heating & A/C because Paul was the most knowledgeable and easiest to understand when explaining all the options available. My new system works flawlessly, and the installation was completed sooner than I expected. If you are looking for a new heating system, do yourself a favor and call Paul Nowak. Don't make a mistake and hire a company with less experience. It sure made a difference for me!