Location and Projects
Address
710 E Los Angeles Ave, Monrovia, CA, 91016
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HC Olsen Construction Engineer
The H. C. Olsen Construction Company has performed general contracting services in a variety of settings since 1946.
While its mainstay has always been telecommunications work for the major telecom providers, Olsen Construction has continued to grow over the years and has expanded its base to include major higher education and commercial clients in Southern California.
Olsen Construction presently specializes in projects involving: 1) new construction; 2) alterations to existing buildings, building systems, and interior spaces; and 3) major hardscape/landscape improvements. Olsen has also been involved from the earliest days with wireless telecommunications, and has a group solely dedicated to the installation and upgrading of cellular antennas and sites.
Olsen Construction is proud to be a union contractor (signatory with the Laborers and Carpenters unions) and a Public Utilities-Certified Hispanic-American/Woman-Owned and Operated Business.
Olsen Construction is licensed in California, Nevada, and Arizona.
From BuildZoom: HC Olsen Construction Co, 710 E Los Angeles Ave, Monrovia, CA holds a General Building, General Engineering license and 2 other licenses according to the California license board.
Their BuildZoom score of 113 ranks in the top 3% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring HC Olsen Construction Co, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
HC Olsen Construction Co Services
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HC Olsen Construction Co Monrovia
Quality
113
97th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
HC Olsen Construction Co has a BuildZoom score of 113, which places them above 97% of 336,931 contractors in California.
Activity
|
8 projects
|
2025 |
|
9 projects
|
2024 |
|
18 projects
|
2023 |
Our building permit records indicate that HC Olsen Construction Co has worked on at least
35.0 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
|
8 projects
|
Commercial Renovations |
Analyzing permits over the last 4 years shows that HC Olsen Construction Co mostly works on
commercial renovation
projects.
Pricing
|
6 projects
|
< $5k |
|
5 projects
|
$5k-$20k |
|
4 projects
|
$20k-$50k |
|
1 project
|
$50k-$100k |
|
7 projects
|
$100k-$250k |
|
2 projects
|
$250k-$500k |
|
1 project
|
$1mil+ |
The typical size of their permits is approximately $22,500. 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 HC Olsen Construction Co
This is a sample of this contractor's permits. Click here to access their complete permit history.
Remove and replace three (3) antennas one (1) per sector. remove three (3) existing rrus and three (3) tmas one (1) each per sector. install one (1) b160 cabinet and one (1) rbs e6160 cabinet within existing lease area on an existing concrete pad
Valuation:
$20,000
Permit #:
21016-10000-16696
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Laboratory renovation in existing mcb building limited to south lab space first floor only approx. 8800sf ( all rooms general lab space b occupancy there are no high hazard occupancies in scope of this project). occupancy unchanged from base building
Valuation:
$350,000
Permit #:
22016-20000-37593
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
**emailed 1/25/24** attn: reza haghighat supplemental to 23016-20000-29024 per discussed via email regard supplemental permit to the original to change the fire rating of walls and doors
Valuation:
$255,000
Permit #:
23016-20001-29024
Status:
plancheck
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Eplan. tenant improvement and miscellaneous alterations in existing school of music office and classroom areas (contemporary wing piano wing and lobby area) including demolition and installation of new walls doors ceilings interior finishes
Valuation:
$253,306
Permit #:
20016-10000-28160
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
****eplan**** interior exterior tenant improvement. to (e) warehouse and office building to relocate mechanical lift addition partition walls to create storage and office rooms addition a canopy on the side of building
Valuation:
$225,000
Permit #:
23016-20000-29024
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Expansion of (e) data equipment building at adjacent vacant lot expansion includes 10, 545sf new interior space for cabi net room 2 electrical switch gears & generators;all new extension
Valuation:
$12,345,670
Permit #:
2109150021
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Eplan change of use from (e) 155 x 300 (3 000 sq.ft.) portion of university dining hall to retail pharmacy. new partitions & interior doors single occupant restrooms and new finishes and flooring throughout all work per engineering
Valuation:
$150,000
Permit #:
23016-20000-13688
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Hvac upgrades - hvac upgrades - installation of (3) new vav supply air boxes included is tying to the existing bas system for control and monitoring install of (3) new fire smoke dampers to be tied into the existing fls monitoring system and install (1) new motorized damper provide electrical circuit(s) from existing panel pnl inv a1
Valuation:
$289,000
Permit #:
COMBC-2020-00091
Status:
final
Fee:
$18,559
Permit Type:
N/A
Building Type:
N/A
Roof repair: 20-30 blister locations damaged coating areas repair voids on existing roof membrane reapply siplast elastomeric coating over roof areas. 43sqs
Valuation:
$300,000
Permit #:
B21-000-797
Status:
issued
Fee:
$3,133
Permit Type:
Roof
Building Type:
N/A
Eplan ***tenant improvement for change of use from juice bar to food pantry retail and office in an existing building. work will include minor demolition non structural new partitions millwork interior doors ceilings
Valuation:
$110,000
Permit #:
23016-20000-12745
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Eplan renovation at (e) laboratory at 1st floor north lab space only
Valuation:
$350,000
Permit #:
22016-20000-37645
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Repair/patch/paint walls & replace ceiling tiled for removed mep components.install a new tbar ceiling in room 801 on the 8th floor
Valuation:
$700,000
Permit #:
B0535-21
Status:
final
Fee:
$12,749
Permit Type:
Out of scope comm...
Building Type:
N/A
Remodel of (e) laboratory space. no change in use. area of work is located on the 5th floor of an (e) 5 story building on usc's university park campus. new built-up equipment pads on the roof
Valuation:
$1,000,000
Permit #:
19016-30000-39321
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Replace (e) wood components of ceremony structure due to dry rot this structure is located in high fire zone as per approved plans
Valuation:
$150,000
Permit #:
BLDC-2022-0203
Status:
complete
Fee:
$2,606
Permit Type:
N/A
Building Type:
N/A
Remove condensert water piping, water source heat pumps&condensate pumps on all 12 floors.fluid coolers on roof to remain&condenser water piping@roof to be extended.remove points from the condenser water system.connect vav boxes to existing ahu system
Valuation:
N/A
Permit #:
M0115-21
Status:
final
Fee:
$5,997
Permit Type:
Out of scope mech...
Building Type:
N/A
At&t’s proposed installation consist principally of the following elements: • remove and replace (12) existing antennas with (12) new antennas. the antenna count is remaining the same. • (3) existing dc-02's surge suppressors (1 per sector) will be removed and replaced with (3) new dc-06's surge suppressors (1 per sector). • we are not expanding the site’s configuration. • the existin... see more
Valuation:
N/A
Permit #:
22016-10000-05422
Status:
plancheck
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
At&t’s proposed installation consist principally of the following elements: • remove and replace (6) existing antennas with (6) new antennas. the antenna count is remaining the same. • (3) existing dc-02's surge suppressors (1 per sector) will be removed and replaced with (3) new dc-06's surge suppressors (1 per sector). • remove and replace the existing screen wall at beta sector wit... see more
Valuation:
N/A
Permit #:
22016-10000-05419
Status:
plancheck
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Eplan. remove and replace (e) water-cooled chiller concrete pads in (e) basement of (e) office and telecommunication center
Valuation:
$250,000
Permit #:
22016-10000-04343
Status:
issued
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Installation of one floor mounted hvac unit at existing switch room and one condenser at existing roof including duct work modifications at switch room
Valuation:
$450,000
Permit #:
BP-2021-21865
Status:
complete
Fee:
N/A
Permit Type:
Industrial buildi...
Building Type:
N/A
Modification to existing wireless facility tower work remove (3) existing antennas & (6) coax cables install (30 sector mount (1) ring moun (3) antennas & (9) trunk cables ground work: remove (3) rus01 b2 & (6) rus01 b4 install (1) enclosure (12) northstar nbs 190ft batteries
Valuation:
N/A
Permit #:
PMT21-05442
Status:
final
Fee:
$931
Permit Type:
N/A
Building Type:
N/A
HC Olsen Construction Co Reviews
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Verified License
BuildZoom confirmed this contractor's license
HC Olsen Construction Co License info
Verified License
| License # | 177029 |
| Status | Active |
| State | California |
| Type | General Building, General Engineering |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for HC Olsen Construction Co 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 # | 177029-.B |
| Status | Active |
| State | California |
| Type | B - GENERAL BUILDING, A - GENERAL ENGINEERING |
- When BuildZoom last verified this license, it had an expiration date of May, 2026. Check the current license status of HC Olsen Construction Co with the California Contractors State License Board
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | HCOLSCO869MS |
| Status | Inactive |
| State | Washington |
| Type | Construction Contractor, General |
- According to the Washington State Department of Labor & Industries, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for HC Olsen Construction Co at the Washington State Department of Labor & Industries.
This is a sample of licensing data; click here to access a complete history.
113
BuildZoom Score
Insured
| Insurer | Hartford Fire Ins Co |
| Insured up to | $1,000,000 |
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Sentinel Insurance Company Ltd |
710
Permits
- Building permit records show that HC Olsen Construction Co has worked on 710 permitted projects.