Location and Projects
Address
660 S Orange Grove Blvd, Pasadena, CA, 91105
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Acco Engineered Systems, Inc Photos
Acco Engineered Systems, Inc
Mechanical systems are the heart of buildings. They make buildings more marketable, more comfortable, and more profitable. A properly designed, installed, and maintained mechanical system conserves energy, cuts absenteeism, increases productivity, and reduces tenant turnover. It can save an owner a great deal of money.
Since 1934, owners and builders have selected ACCO Engineered Systems to design, install, and maintain more than 250,000 mechanical projects. ACCO is an employee-owned family of companies dedicated to the design, fabrication, installation, maintenance and service of commercial and industrial HVAC, refrigeration, plumbing, process piping, and building automation systems.
ACCO has gained a wealth of knowledge since its founding, and has grown to be the largest and most experienced environmental firm in the Western United States, and among the top three nationwide.
Whether your project is a low or high-rise office building, a shopping mall, hospital, semi-conductor fabrication facility or pharmaceutical manufacturing plant…ACCO can design, build, install, and maintain a mechanical system to meet your needs.
ACCO has found success by evaluating overall system performance, ease of installation, reliability and long term energy consumption costs, and how these variables relate to an owner’s needs. Through innovative engineering, comprehensive design solutions, consistent work quality, and qualified maintenance; ACCO confidently delivers the best possible solution.
ACCO offers complete in-house engineering, fabrication, installation, commissioning, and service capabilities. This integrated delivery system provides customers with the most practical, cost effective solutions for their particular mechanical and control system requirements.
ACCO is licensed in the States of Arizona, California, Florida, Hawaii, Idaho, Nevada, Oregon, Utah and Washington.
From BuildZoom: Acco Engineered Systems, Inc, 660 S Orange Grove Blvd, Pasadena, CA holds a Contractor license and 8 other licenses according to the Butte County license board.
Their BuildZoom score of 121 ranks in the top 1% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Acco Engineered Systems, Inc, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Acco Engineered Systems, Inc Services
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Acco Engineered Systems, Inc Contact Information
Phone Number: (858) 205-0435
Address: 660 S Orange Grove Blvd, Pasadena, CA 91105
Acco Engineered Systems, Inc Pasadena
Quality
121
99th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Acco Engineered Systems, Inc has a BuildZoom score of 121, which places them above 99% of 336,931 contractors in California.
Activity
|
2 projects
|
2026 |
|
459 projects
|
2025 |
|
356 projects
|
2024 |
|
377 projects
|
2023 |
Our building permit records indicate that Acco Engineered Systems, Inc has worked on at least
1194.0 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
|
197 projects
|
Commercial Renovations |
|
35 projects
|
Home Additions |
|
18 projects
|
New Constructions |
Analyzing permits over the last 4 years shows that Acco Engineered Systems, Inc mostly works on
commercial renovation
and home addition
projects.
Pricing
|
26 projects
|
< $5k |
|
69 projects
|
$5k-$20k |
|
105 projects
|
$20k-$50k |
|
97 projects
|
$50k-$100k |
|
71 projects
|
$100k-$250k |
|
45 projects
|
$250k-$500k |
|
22 projects
|
$500k-$1mil |
|
21 projects
|
$1mil+ |
The typical size of their permits is approximately $60,000. 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 Acco Engineered Systems, Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
Remove and replace two(2) existing boilers and primary pumps for new units. install one(1) new boiler(b-6) and one(1) new primary pump(p-6). relocate one(1) expansion tank to new pads. replace one(1) expansion tank. replace one(1) gas-regulator valve
Valuation:
$359,000
Permit #:
B00-036-452
Status:
issued
Fee:
$957
Permit Type:
Schools
Building Type:
N/A
Replace existing chilled water plant with like equipment. new equipment includes qty (3) modular air-cooled chillers qty (2) primary loop pumps qty (2) secondary loop pumps air separator expansion tank buffer tanks chemical pot feeder and make-up water back-flow preventer
Valuation:
$1,090,000
Permit #:
BLD25-01624
Status:
issued
Fee:
$29,456
Permit Type:
N/A
Building Type:
N/A
Deferred mechanical for permit 202405242925. lobby level suite 2210-2211: tenant improvement change of use from retail to office. mechanical on 2nd level and rooftop: demolish out existing fan coils chilled and heater water piping new vrf systems new fans for ventilation air bathroom exhaust
Valuation:
$300,000
Permit #:
202504094014
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
10 - office
Replace hvac boilers primary pumps secondary pumps expansian tank air seperator and chem pot feeder with new units. replace (e) hhws/r piping. replace (e) flue replace (e) dhw boilers and associated piping in mechanical room
Valuation:
$1,000,000
Permit #:
202506279705
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
7/fl-replace (e) wshp with (n) like for like wshp and connect to (e) supply ductwork. replace (e) cooling tower and condenser water pump with a (n) cooling tower and condenser water pump connect to (e) piping
Valuation:
$600,000
Permit #:
202504043742
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
10 - office
Acco to perform design-build mechanical construction services to remove replace e) 60 ton carrier rooftop cooling only air condition unit w a new like for like 60 ton rooftop cooling only unit
Valuation:
$325,000
Permit #:
202503283288
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
10 - office
Miscellaneous water heater electrical plumbing hvac mechanical solar/pv
2025-09-02
1. demolish existing gas fired humidifiers. 2. install two (2) new heat pumps. 3. install two (2) new direct evaporative humidifiers. 4. startup and balance mau system. *ntt data center ca1
Valuation:
$600,000
Permit #:
MISC2025-00077
Status:
final
Fee:
$10,260
Permit Type:
N/A
Building Type:
N/A
Epc - city project- facilities inspected. replace (1) 12.5-ton roof top hvac unit and (1) reznor make-up air unit both located on the roof top. we will also be replacing the water heater from gas to electric
Valuation:
$245,898
Permit #:
COM-2509958
Status:
issued
Fee:
$6,021
Permit Type:
N/A
Building Type:
N/A
Eplan- retail t. i. patch repair & paint all existing walls. install new partitions ceiling lighting & millwork per michael kors design. install new flooring & finishes. new storefront to replace existing. existing ada restroom to remain
Valuation:
$380,000
Permit #:
BS2306165
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
Commercial low gen
Replacement of (4) hvac rooftop package units 80-ton with (4) new 80-ton package units. these units serve the entire building not just suite 210. ***field rev sub 1 6/18/25 - replace existing structural steel base frame with new steel frame and spring isolators***
Valuation:
$1,230,000
Permit #:
B25-0546
Status:
issued
Fee:
$2,890
Permit Type:
N/A
Building Type:
N/A
Commercial: limited review - electrical mechanical plumbing reroof etc
2025-07-09
Placer county cdrc new booster pump skid furnish and install new booster pump skid. furnish and install new hydro pneumatic tank. demolish existing booster pump skid and hydro pneumatic tank. startup and testing of new equipment
Valuation:
$115,274
Permit #:
BLD25-01269
Status:
complete
Fee:
$1,060
Permit Type:
Alteration
Building Type:
N/A
Commercial: limited review - electrical mechanical plumbing reroof etc
2025-03-12
Placer county fab building - air cooled chillers replacement remove and replace existing air-cooled chillers (2) air cooled chillers: 130 ton york ylaa0139hj46xfb demolish existing heat exchanger redundant pumps air separator and expansion tank modify piping as required for primary and secondary system special inspection required
Valuation:
$465,910
Permit #:
BLD24-02883
Status:
complete
Fee:
$487
Permit Type:
Alteration
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%. 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:
$38,000
Permit #:
BP25-00572
Status:
issued
Fee:
$185
Permit Type:
N/A
Building Type:
N/A
Building d conference rooms - install qty (1) new vav cooling-only box to serve an existing conference room. rebalance qty (1) existing vav box as required to serve two existing conference rooms. new ductwork and ceiling grilles as required to accommodate new zoning
Valuation:
$29,783
Permit #:
BLD25-01593
Status:
final
Fee:
$1,296
Permit Type:
N/A
Building Type:
N/A
Hvac permit: replace an old mini split system located on the ground like for like. 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%. cf-1r-alt-hvac on file: carbon monoxide & smoke alarms required. reference crc sections r315 & r314
Valuation:
$33,578
Permit #:
COM-2509120
Status:
issued
Fee:
$705
Permit Type:
N/A
Building Type:
N/A
E-permit: applicant's detailed description: install new branch piping and back flow preventer for rugs tenant cut and cap existing connections to restroom cores connect those branches to the new main.; water service replacement or repair 700 l.f. water supply replacement or repair 700 l.f
Valuation:
$149,480
Permit #:
BP24-09422
Status:
expired
Fee:
$1,526
Permit Type:
N/A
Building Type:
N/A
Work category: 11p; removal of: 1” watts lf009m2qt sn: 053629 and 1” wilkins model unknown sn: 1120179 inspection needed of existing devices not in ccams: 4” wilkins 375ast sn: 11236g domestic main in series located in trash loading dock 3/4” watts 009m2qt sn: 92858 located in wharf side building 3rd floor kitchen in closet
Valuation:
N/A
Permit #:
PW20250623109
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 3pc; the project consists of a proposed 142 500 gsf addition of educational and accessory spaces to an existing educational building. the existing building is three stories and the proposed addition is three stories plus basement. the proposed addition will be connected to the existing building at each existing floor level: at grade plus levels two and three. the new ad... see more
Valuation:
N/A
Permit #:
PW20250611890
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
In association with fpuwp2500007 and fpcbp2400733 (county fm# fm08190013942) this is for the new french valley childcare and early childhood learning experience a 13 000 sf building comprised of a 9 000 sf childcare center and 4 000 sf learning experience
Valuation:
N/A
Permit #:
FPFSS2500178
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 8p; addition boiler install fee to pw20250109193 to remove raypak boiler model # h3-hd201 serial # v342200204 and removed a 1/2 watts 009qt serial # a93457 backflow. installed new lochinvar boiler model # khb199n and serial # 2435140377515 and new backflow is a 1/2 watts 009qt serial # 443652
Valuation:
N/A
Permit #:
PW20250505026
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Acco Engineered Systems, Inc License info
Verified License
| License # | 120696 |
| Status | Active |
| City | Butte County |
| Type | Contractor |
| Business Type | Corporation |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for Acco Engineered Systems, Inc at the Butte County, CA.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 120696 |
| Status | Active |
| State | California |
| Type | Boiler, Hot Water Heating And Steam Fitting, Warm Air Heating, Ventilating And Air Conditioning, Plumbing, Refrigeration, Electrical, General Building, General Engineering, Sanitation System, Fire Protection |
| Business Type | Corporation |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Acco Engineered Systems, Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 950443 |
| Status | Active |
| State | California |
| Type | General Building, Boiler, Hot Water Heating And Steam Fitting, Electrical, Warm Air Heating, Ventilating And Air Conditioning, Plumbing, Refrigeration, Sheet Metal, Fire Protection, Pipeline, Sanitation System |
| Business Type | Corporation |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for Acco Engineered Systems, Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 364431 |
| Status | Active |
| City | Milpitas |
| Type | Contractor, General |
| Business Type | Corporation |
- When BuildZoom last verified this license, it had an expiration date of December, 2017. Check the current license status of Acco Engineered Systems, Inc with the The City of Milpitas, CA
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | ABD0001 |
| Status | Active |
| Town | Woodside |
| Type | Subcontractor |
| Business Type | Corporation |
- When BuildZoom last verified this license, it had an expiration date of December, 2017. Check the current license status of Acco Engineered Systems, Inc with the The Town of Woodside, CA
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 1209696 |
| Status | Active |
| City | San Juan Capistrano |
| Type | Contractor |
| Business Type | Corporation |
- When BuildZoom last verified this license, it had an expiration date of December, 2017. Check the current license status of Acco Engineered Systems, Inc with the The City of City of San Juan Capistrano, CA
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 120696 |
| Status | Inactive |
| City | Oceanside |
| Type | Contractor |
| Business Type | Corporation |
- According to the City of Oceanside, CA, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Acco Engineered Systems, Inc at the City of Oceanside, CA.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 1016354 |
| Status | Inactive |
| State | California |
| Type | Plumbing, Boiler, Hot Water Heating And Steam Fitting, 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.
Check this license's status for Acco Engineered Systems, 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 # | 356011 |
| Status | Inactive |
| State | California |
| Type | Lockers,Storage,Shelving,Metal Part, Prefabricated Equipment |
| 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.
Check this license's status for Acco Engineered Systems, Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
121
BuildZoom Score
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Xl Specialty Insurance Company |
5.3K
Permits
- Building permit records show that Acco Engineered Systems, Inc has worked on 5289 permitted projects.