Updated: Jul 11, 2026
Location and Projects
Address
1045 N 10TH STREET, San Jose, CA, 95112
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Sandium HVAC/Mechanical Contractor
Sandium Inc, 1045 N 10th St, San Jose, CA (Employees: Columbia Home Services Llc, Michael Yiu Hang Lee, and Scott Alan Barton) holds a General Building, Insulation And Acoustical, Warm Air Heating, Ventilating And Air Conditioning license and 2 other licenses according to the California license board.
Their BuildZoom score of 120 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 Sandium Inc, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Sandium Inc Contact Information
Phone Number: (408) 894-9072
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Address: 1045 N 10TH STREET, San Jose, CA 95112
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Sandium Inc San Jose
Quality
120
99th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Sandium Inc has a BuildZoom score of 120, which places them above 99% of 336,931 contractors in California.
Activity
|
1 project
|
2026 |
|
58 projects
|
2025 |
|
40 projects
|
2024 |
|
46 projects
|
2023 |
Our building permit records indicate that Sandium Inc has worked on at least
145.0 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
|
7 projects
|
Home Additions |
|
82 projects
|
HVAC projects |
|
31 projects
|
Mechanical projects |
Analyzing permits over the last 4 years shows that Sandium Inc mostly works on
hvac project
and mechanical project
projects.
Pricing
|
14 projects
|
$5k-$20k |
|
13 projects
|
$20k-$50k |
The typical size of their permits is approximately $19,849. 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.
This is a sample of this contractor's permits. Click here to access their complete permit history.
Replace (e) gas furnace (attic) with (n) heat pump system. includes new electric fan coil in attic (same location) and new heat pump at exterior location. no ducting replaced
Valuation:
$15,950
Permit #:
LPC2025-00435
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
A single family residence to replace gas furnance with an electric heat pump installed outdoors
Valuation:
$20,000
Permit #:
LPC2024-01708
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 1m; mechanical final for the heat pump installation at 3610 washington street per the mechanical plans. the mechanical plans are part of the plans submitted under permit #2019-01-10-0038 s2
Valuation:
N/A
Permit #:
PMW20240426390
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New air conditioning installation (carrier 3 ton slim air conditioner refrigerant line cooling coil 220v electrical to condensor service disconnect box/power/fuses) on west side of house resubmittal 1 - all - 2/17/21 response to planning comments and building resubmittal 2 -all - 3/14/22 response to planning comments it is the permittee’s obligation and responsibility to ensure that a... see more
Valuation:
N/A
Permit #:
BLD2022-00346
Status:
final
Fee:
$333
Permit Type:
N/A
Building Type:
N/A
Hvac furnace air conditioning and heat pump
2022-11-29
Install (n) air conditioner to (e) gas furnace it is the permittee’s obligation and responsibility to ensure that all work associated with this permit complies with all current orders of the health officer of the county of san mateo related to the novel coronavirus disease 2019 (covid-19). the county of san mateo assumes no responsibility for work performed by permittee that is not in... see more
Valuation:
N/A
Permit #:
BLD2021-01027
Status:
final
Fee:
$343
Permit Type:
N/A
Building Type:
N/A
Replace furnace and air conditioning with heat pump. like-for-like locations. addition 1 supply and 1 return duct to master bedroom
Valuation:
N/A
Permit #:
DEV25-1473
Status:
issued
Fee:
$228
Permit Type:
N/A
Building Type:
N/A
Replacement of 70000 btu gas furnace in same location. replacement of 3 ton air conditioner
Valuation:
$13,000
Permit #:
BLD24-03304
Status:
final
Fee:
$336
Permit Type:
N/A
Building Type:
N/A
Replacing existing furnaces (2) and existing ac’s (2) at existing location using existing ducting remove and replace same locations all outdoor equipment must comply with the cities noise ordinance
Valuation:
$39,000
Permit #:
LPC2021-02786
Status:
complete
Fee:
$237
Permit Type:
N/A
Building Type:
N/A
Install new heat pump (ac) replace furnace with air handler in same location ductwork. a minimum of 5’ from the air conditioning unit to the property line (pl) is required
Valuation:
$26,422
Permit #:
BLD25-03648
Status:
issued
Fee:
$512
Permit Type:
N/A
Building Type:
N/A
Replace outdoor air conditioning and furnace with heat pump and air handler in same locations (indoor closet) a minimum of 5’ from the heat pump unit to the property line (pl) is required
Valuation:
$17,952
Permit #:
BLD25-03647
Status:
final
Fee:
$512
Permit Type:
N/A
Building Type:
N/A
Heat pump installation to replace existing furnace and air conditioning at same locations
Valuation:
$25,000
Permit #:
BLD23-68146
Status:
final
Fee:
$323
Permit Type:
N/A
Building Type:
N/A
(r/r furnace and install two (n) air conditioning (one in left side yard and one at rear of home)
Valuation:
$14,560
Permit #:
BLD2021-61349
Status:
final
Fee:
$596
Permit Type:
N/A
Building Type:
N/A
Air conditioning & furnace
Valuation:
N/A
Permit #:
25-0215
Status:
final
Fee:
$332
Permit Type:
Air conditioning
Building Type:
N/A
Remove (e) gas furnace and (e) air conditioner - replace with (n) heat ducted pump mini-split w (2x) attic located air handlers w/central ducting and (1x) wall mount ductless fan coil
Valuation:
$41,700
Permit #:
LPC2020-01100
Status:
complete
Fee:
$402
Permit Type:
N/A
Building Type:
N/A
R&r existing gas furnace and install (n) air conditioner. also includes replacement ducting system
Valuation:
$23,000
Permit #:
MEP-2022-285159
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace existing gas furnace and air conditioning with a new heat pump. no ducting is changed
Valuation:
N/A
Permit #:
DEV24-1042
Status:
canceled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install new heat pump replace furnace with air handler in same location
Valuation:
N/A
Permit #:
DEV25-2736
Status:
issued
Fee:
$572
Permit Type:
N/A
Building Type:
N/A
Air conditioning and furnace replacement with new heat pumps & h.p. w.h
Valuation:
N/A
Permit #:
BLD25-01293
Status:
final
Fee:
$1,403
Permit Type:
Heat pump
Building Type:
N/A
Remove existing furnace and ducting install new mitsuibshi heat pump system with 2 mitsubishi fancoils and new ducting
Valuation:
N/A
Permit #:
M23-121
Status:
final
Fee:
$177
Permit Type:
N/A
Building Type:
N/A
Remove existing furnace and ducting install new mitsuibshi heat pump system with 2 mitsubishi fancoils and new ducting
Valuation:
N/A
Permit #:
PRE23-00900
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Similar Contractors See more
149
BZ Score
$11.9K
Avg Project
-
Projects
149
BZ Score
$10.5K
Avg Project
-
Projects
145
BZ Score
$4.5K
Avg Project
-
Projects
Sandium Inc Reviews
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Verified License
BuildZoom confirmed this contractor's license
Sandium Inc License info
Verified License
| License # | 1140043 |
| Status | Active |
| State | California |
| Type | General Building, Insulation And Acoustical, Warm Air Heating, Ventilating And Air Conditioning |
| Business Type | Corporation |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Sandium 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 # | NAT-F245757-1 |
| Status | Active |
| Nation | Environmental Protection Agency |
| Type | Renovation |
| Business Type | Corporation |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Sandium Inc at the United States Environmental Protection Agency.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 888119 |
| Status | Inactive |
| State | California |
| Type | Warm Air Heating, Ventilating And Air Conditioning, Insulation And Acoustical, 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. If this is your business, please update your license status.
Check this license's status for Sandium Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
120
BuildZoom Score
Insured
| Insurer | Greenwich Insurance Company |
| Insured up to | $2,000,000 |
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Insurance Company Of The West |
1.2K
Permits
- Building permit records show that Sandium Inc has worked on 1150 permitted projects.
Sandium Inc Employees
CL
Columbia Home Services Llc
Member
ML
Michael Yiu Hang Lee
Rmo/Ceo/Pres
SB
Scott Alan Barton
Ceo / President