Updated: Jan 26, 2026
Location and Projects
Address
3742 E Walnut St, Pasadena, CA, 91107
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Commercial Air Systems Photos
Commercial Air Systems HVAC/Mechanical Contractor
Commercial Air Systems in Pasadena, CA is your trusted partner for professional HVAC solutions tailored to businesses and property owners across Pasadena, CA. Specializing in commercial air conditioning, heating, ventilation, and indoor air quality services, we ensure reliable performance, energy efficiency, and comfort in every project. Whether it’s system installation, preventive maintenance, or emergency repairs, our experienced technicians deliver fast, dependable, and cost-effective solutions. Known for quality workmanship and responsive service, Commercial Air Systems keeps Pasadena businesses running smoothly with cleaner, healthier, and more efficient indoor environments.
From BuildZoom: Commercial Air Systems, 3742 E Walnut St, Pasadena, CA (Employee: Michael John Guerriero) holds a Warm Air Heating, Ventilating And Air Conditioning license according to the California license board.
Their BuildZoom score of 96 ranks in the top 20% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Commercial Air Systems, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Commercial Air Systems Contact Information
Phone Number: (626) 389-1358
Address: 3742 E Walnut St, Pasadena, CA 91107
Commercial Air Systems Pasadena
Quality
96
80th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Commercial Air Systems has a BuildZoom score of 96, which places them above 80% of 336,931 contractors in California.
Activity
|
2 projects
|
2025 |
|
1 project
|
2023 |
Our building permit records indicate that Commercial Air Systems has worked on at least
3.0 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
|
3 projects
|
Mechanical projects |
|
3 projects
|
HVAC projects |
Analyzing permits over the last 4 years shows that Commercial Air Systems mostly works on
hvac project
and mechanical project
projects.
Pricing
|
1 project
|
< $5k |
|
1 project
|
$5k-$20k |
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 Commercial Air Systems
This is a sample of this contractor's permits. Click here to access their complete permit history.
Change out (1) hvac system same size location. includes ductwork
Valuation:
$600
Permit #:
BS2500182
Status:
issued
Fee:
N/A
Permit Type:
Repair & maintenance
Building Type:
Duplex/apartment/...
Installing a new air conditioning & heating system and economizer
Valuation:
N/A
Permit #:
BM1924680
Status:
issued
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
1 air handler unit and 1 compressor under 3 ton
Valuation:
N/A
Permit #:
BM1827848
Status:
final
Fee:
N/A
Permit Type:
Alteration
Building Type:
N/A
Mission valley..mvpd-mv-co building permit for interior tenant improvement for exiting office space. scope includes demolish new partitions suspended ceiling work and lighting. one new bar sink proposed. separate misc. approvals required. features faa part 77; brush zones 300 buffer cen.tract- 93.04 ** fees based on 1/2 suite area - drd ***
Valuation:
$375,318
Permit #:
649836
Status:
complete
Fee:
$9,221
Permit Type:
Add/alt tenant im...
Building Type:
N/A
Kearny mesa cp: in base zone il-2-1. building permit for interior tenant improvement proposing plumbing demolish electrical mechanical/ductwork only por new ceilings demo/new partitions. features: brush/gh23, 53/census tk 85.81. iss/rel nssq 131116
Valuation:
$109,185
Permit #:
395564
Status:
complete
Fee:
$1,820
Permit Type:
Add/alt tenant im...
Building Type:
N/A
Kearny mesa..il-2-1 building permit for tenant improvement for existing office space. scope of work involves new interior partitions new lighting new duct work (e) hvac. one new sink features: airport environs brush zones 300 res.tandem parking esl mhpa cen.tract-85.11
Valuation:
$62,611
Permit #:
425405
Status:
complete
Fee:
$1,577
Permit Type:
Add/alt tenant im...
Building Type:
N/A
La jolla..ljpd-4 building permit for interior tenant improvement to (e) restaurant. scope is primary interiror design that will include ceiling work and basic finishes. no new mechanical equiptment (e) hvac (e) hood. lighting. no new plumbing is proposed. features coastal zone coastal height parking impact transit area cen.tract-82
Valuation:
$38,512
Permit #:
427129
Status:
complete
Fee:
$1,476
Permit Type:
Add/alt tenant im...
Building Type:
N/A
Mission valley; building. permit; permit for interior remodelling and replacing existing store front with new. work to include installation of partitions store front mechanical & electrical work. no plumbing work for this project; zone: mvpd-mv-cr
Valuation:
$28,710
Permit #:
294578
Status:
complete
Fee:
$1,411
Permit Type:
Add/alt tenant im...
Building Type:
N/A
University...cn-1-2 building permit for tenant improvement for existing bank. scope to include: new partition walls drywall ceiling new soffit for duct and linear diffuser box. no new plumbing fixtures. misc. electrical mechanical on separate approvals
Valuation:
$5,278
Permit #:
349079
Status:
complete
Fee:
$1,192
Permit Type:
Add/alt tenant im...
Building Type:
N/A
University...cn-1-2 building permit for tenant improvement for existing bank. scope to include: new partition walls, drywall ceiling, new soffit for duct and linear diffuser box. no new pluming fixtures. misc. electrical, mechanical on separate approvals
Valuation:
$0
Permit #:
349080
Status:
Completed
Fee:
N/A
Permit Type:
N/A
Building Type:
Add/Alt Tenant Im...
University...cn-1-2 building permit for tenant improvement for existing bank. scope to include: new partition walls, drywall ceiling, new soffit for duct and linear diffuser box. no new pluming fixtures. misc. electrical, mechanical on separate approvals
Valuation:
$0
Permit #:
349081
Status:
Completed
Fee:
N/A
Permit Type:
N/A
Building Type:
Add/Alt Tenant Im...
La jolla..ljpd-4 building permit for interior tenant improvement to (e) restaurant. scope is primary interiror design that will include ceiling work and basic finishes. no new mechanical equiptment (e) hvac (e) hood. lighting. no new plumbing is proposed. features coastal zone coastal height parking impact transit area cen.tract-82
Valuation:
N/A
Permit #:
427130
Status:
complete
Fee:
$1,476
Permit Type:
Add/alt tenant im...
Building Type:
N/A
Add and relocate pendent fire sprinklers - bldg. 28 & 29. *** "construction change -- building" approval scope inlcudes "deferred approval for sprinkler plans for previously issued building permit approval #397462 for bldg #28 and approval # 440889 for bldg #29."
Valuation:
$0
Permit #:
465351
Status:
Completed
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Kearny mesa..il-2-1 building permit for tenant improvement for existing office space. scope of work involves new interior partitions new lighting new duct work (e) hvac. one new sink features: airport environs brush zones 300 res.tandem parking esl mhpa cen.tract-85.11
Valuation:
N/A
Permit #:
425408
Status:
complete
Fee:
$137
Permit Type:
Add/alt tenant im...
Building Type:
N/A
Kearny mesa..il-2-1 building permit for tenant improvement for existing office space. scope of work involves new interior partitions new lighting new duct work (e) hvac. one new sink features: airport environs brush zones 300 res.tandem parking esl mhpa cen.tract-85.11
Valuation:
N/A
Permit #:
425407
Status:
complete
Fee:
$103
Permit Type:
Add/alt tenant im...
Building Type:
N/A
Kearny mesa..il-2-1 building permit for tenant improvement for existing office space. scope of work involves new interior partitions new lighting new duct work (e) hvac. one new sink features: airport environs brush zones 300 res.tandem parking esl mhpa cen.tract-85.11
Valuation:
N/A
Permit #:
446010
Status:
issued
Fee:
$243
Permit Type:
N/A
Building Type:
N/A
La jolla..ljpd-4 building permit for interior tenant improvement to (e) restaurant. scope is primary interiror design that will include ceiling work and basic finishes. no new mechanical equiptment (e) hvac (e) hood. lighting. no new plumbing is proposed. features coastal zone coastal height parking impact transit area cen.tract-82
Valuation:
N/A
Permit #:
427131
Status:
complete
Fee:
$1,476
Permit Type:
Add/alt tenant im...
Building Type:
N/A
La jolla..ljpd-4 building permit for interior tenant improvement to (e) restaurant. scope is primary interiror design that will include ceiling work and basic finishes. no new mechanical equiptment (e) hvac (e) hood. lighting. no new plumbing is proposed. features coastal zone coastal height parking impact transit area cen.tract-82
Valuation:
N/A
Permit #:
427132
Status:
complete
Fee:
$103
Permit Type:
Add/alt tenant im...
Building Type:
N/A
Mission valley..mvpd-mv-co building permit for interior tenant improvement for exiting office space. scope includes demolish new partitions suspended ceiling work and lighting. one new bar sink proposed. separate misc. approvals required. features faa part 77; brush zones 300 buffer cen.tract- 93.04 ** fees based on 1/2 suite area - drd ***
Valuation:
N/A
Permit #:
649839
Status:
complete
Fee:
$103
Permit Type:
Add/alt tenant im...
Building Type:
N/A
Mission valley; bldg. permit; permit for interior remodelling and replacing existing store front with new. work to include installation of partitions, store front, mechanical & electrical work. no plumbing work for this project; zone: mvpd-mv-cr
Valuation:
$0
Permit #:
294579
Status:
Completed
Fee:
N/A
Permit Type:
N/A
Building Type:
Add/Alt Tenant Im...
Commercial Air Systems Reviews
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Verified License
BuildZoom confirmed this contractor's license
Commercial Air Systems License info
Verified License
| License # | 1027008 |
| Status | Active |
| State | California |
| Type | Warm Air Heating, Ventilating And Air Conditioning |
- BuildZoom verified this license was active as of January 2026.
Verify this license's status for Commercial Air Systems at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
96
BuildZoom Score
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
37
Permits
- Building permit records show that Commercial Air Systems has worked on 37 permitted projects.
Commercial Air Systems Employees
MG
Michael John Guerriero
Rmo / Ceo / Pres