Updated: Apr 29, 2026
Location and Projects
Address
1220 N BARSTEN WAY, Anaheim, CA, 92806
Use our bidding system to
request a quote
Diversified Thermal Services HVAC/Mechanical Contractor
Diversified Thermal Services Inc, 1220 N Barsten Way, Anaheim, CA (Employees: Craig James Steinmetz, Manuel Beltran, and Steinmetz, Craig James) holds a C 21 Refrigeration And Air Conditioning license and 3 other licenses according to the Nevada license board.
Their BuildZoom score of 110 ranks in the top 4% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Diversified Thermal Services Inc, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Diversified Thermal Services Inc Contact Information
Phone Number: (714) 632-7401
Edit
Address: 1220 N BARSTEN WAY, Anaheim, CA 92806
Edit
Do you work for this business? Unlock this free profile to update company info and see who's viewing your profile.
Diversified Thermal Services Inc Anaheim
Quality
110
96th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Diversified Thermal Services Inc has a BuildZoom score of 110, which places them above 96% of 336,931 contractors in California.
Activity
|
11 projects
|
2025 |
|
1 project
|
2024 |
|
2 projects
|
2023 |
Our building permit records indicate that Diversified Thermal Services Inc has worked on at least
14.0 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
|
12 projects
|
HVAC projects |
|
7 projects
|
Mechanical projects |
Analyzing permits over the last 4 years shows that Diversified Thermal Services Inc mostly works on
hvac project
and mechanical project
projects.
Pricing
|
2 projects
|
$20k-$50k |
|
2 projects
|
$50k-$100k |
|
1 project
|
$250k-$500k |
The typical size of their permits is approximately $100,000. 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 Diversified Thermal Services Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
Permit to replace (5) existing roof top cooling units new curbs and replace existing exhauste fans and relocate to new positions; install new beam support underneath new units and reinforce existing roof frames under new units rtu-1 thru rtu-5: weight: 1 787 lbs. size: 58 ¼”w x 88”l x 50-1/8”h rtu-6: weight: 1662 lbs. size: 58 ¼”w x 88”l x 50-1/8”h
Valuation:
N/A
Permit #:
MECH-25-00047
Status:
issued
Fee:
$612
Permit Type:
N/A
Building Type:
N/A
Address: 16231 valley fontana ca 92335 scope of work: • safe off and lock out/tag out unit power. • shut off gas supply to condenser unit and disconnect gas connection. • recover refrigerant and disconnect units from refrigerant lines. • remove refrigerant piping and related hardware. • remove existing hvac equipment and dispose of as needed. • disconnect existing ductwork and dispose... see more
Valuation:
N/A
Permit #:
MECH-25-00357
Status:
triage
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Address: 16321 valley fontana ca 92335 scope of work: • safe off and demolish climate wizard unit from roof. • remove the roof ducting from the roof and install louvers at wall penetration for fresh air. • provide subcontractor service to install the following: o concrete 4’x6’x6” slab for new ghp unit. o provide (2) 4”x4’ bollards and paint safety yellow o furnish (1) 10”x’ french dr... see more
Valuation:
N/A
Permit #:
MECH-25-00356
Status:
triage
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Comply with department order effective date 02/28/2024. permit will expire 30 days from issuance date. supplemental permit to 24044-20000-17268 to addition 13 outlets 1 inlet and 1 air handler
Valuation:
N/A
Permit #:
24044-40001-17268
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Replace air cooled chiller on roof. same tonnage 77 ton. disconnect/reconnect electrical. all work performed on roof. --- mechanical screening
Valuation:
$340,000
Permit #:
BS2204868
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
Commercial low gen
(e-plan) replace air cooled chiller on roof. same tonnage 77 ton. disconnect/reconnect electrical. all work performed on roof
Valuation:
$300,000
Permit #:
BS2204870
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
Commercial low gen
Replace air cooled chiller on roof. same tonnage 77 ton. disconnect/reconnect electrical. all work performed on roof
Valuation:
$340,000
Permit #:
BS2204869
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
Commercial low gen
(e-plan) mechanical for : install four(4)- new rooftop hvac units above garage building with new roof curbs and new roof frame supports
Valuation:
$100,000
Permit #:
MEC-2025-00514
Status:
final
Fee:
$0
Permit Type:
N/A
Building Type:
N/A
(eplan) replace (6) rooftop air handlers. tenant: beckman conference center *revised to reflect correct number of units* wm 01.23.25
Valuation:
N/A
Permit #:
00948986-MBP
Status:
issued
Fee:
$709
Permit Type:
N/A
Building Type:
N/A
Replace (6) rooftop ahu's remove existing chillers and install (2) new 100 ton water cooled chillers install (2) chilled water pumps (2) condenser water pumps water treatment station new vfds
Valuation:
N/A
Permit #:
21044-20000-28140
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
(e-plan) mechanical & electrical tenant improvement to replace (1) air supply fan (2) evaporative coolers & (2) condenser water pumps. (epr)
Valuation:
$700,000
Permit #:
00808183-MISC
Status:
final
Fee:
$555
Permit Type:
N/A
Building Type:
N/A
Comply with department order effective date 02/28/2024. permit will expire 30 days from issuance date. install 5 ton hvac unit
Valuation:
N/A
Permit #:
24044-20000-17268
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Boiler replacement
Valuation:
$776,357
Permit #:
PLUM20-0022
Status:
final
Fee:
$464
Permit Type:
Residential
Building Type:
N/A
Controls install on vavs
Valuation:
N/A
Permit #:
25044-90000-05482
Status:
issued
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Install (2) units
Valuation:
N/A
Permit #:
25-600|000/000/MNP/00
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
Single family res...
Boiler changeout
Valuation:
N/A
Permit #:
23042-90000-21416
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Boiler changeout
Valuation:
N/A
Permit #:
23044-90000-24517
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
(e-plan) remove (1) cooling tower install (1) cooling tower & (2) variable frequency drives (ground level) w electrical
Valuation:
$25,000
Permit #:
00856912-MISC
Status:
final
Fee:
$372
Permit Type:
N/A
Building Type:
N/A
(e-plan) remove (1) cooling tower install (1) cooling tower & (2) variable frequency drives (ground level) w electrical
Valuation:
N/A
Permit #:
00856911-MBP
Status:
final
Fee:
$270
Permit Type:
N/A
Building Type:
N/A
(e-plan) remove (1) cooling tower install (1) cooling tower & (2) variable frequency drives (ground level) w electrical
Valuation:
N/A
Permit #:
00856910-EBP
Status:
final
Fee:
$296
Permit Type:
N/A
Building Type:
N/A
Similar Contractors See more
142
BZ Score
$6K
Avg Project
-
Projects
138
BZ Score
-
Avg Project
-
Projects
137
BZ Score
$14K
Avg Project
-
Projects
Recent Buildzoom Projects
Let us find you an HVAC pro in your area today
We'll search our vast network of HVAC Pros and connect
you with one that meets your needs today.
Verified License
BuildZoom confirmed this contractor's license
Diversified Thermal Services Inc License info
Verified License
| License # | 0087336 |
| Status | Active |
| State | Nevada |
| Type | C 21 Refrigeration And Air Conditioning |
| Business Type | Corporation |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for Diversified Thermal Services Inc at the Nevada State Contractors Board.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 609967 |
| Status | Active |
| State | California |
| Type | Warm Air Heating, Ventilating And Air Conditioning, Refrigeration, General Building, Electrical |
| Business Type | Corporation |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Diversified Thermal Services 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 # | 264560 |
| Status | Inactive |
| State | Arizona |
| Type | Specialty Commercial |
| Business Type | Corporation |
- According to the Arizona Registrar of Contractors, 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 Diversified Thermal Services Inc at the Arizona Registrar of Contractors.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 264561 |
| Status | Inactive |
| State | Arizona |
| Type | Specialty Commercial |
| Business Type | Corporation |
- According to the Arizona Registrar of Contractors, 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 Diversified Thermal Services Inc at the Arizona Registrar of Contractors.
This is a sample of licensing data; click here to access a complete history.
110
BuildZoom Score
Insured
| Insurer | Greenwich Insurance Company |
| Insured up to | $4,000,000 |
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Zurich American Insurance Company |
23
Permits
- Building permit records show that Diversified Thermal Services Inc has worked on 23 permitted projects.
Diversified Thermal Services Inc Employees
CS
Craig James Steinmetz
Rmo
MB
Manuel Beltran
Rme
SJ
Steinmetz, Craig James
President
WC
William Leslie Clements
Rmo/Ceo/Pres
Craig and the Team at DTSI are amazing!!!! They have overhauled our 600 ton Chillers, renovated full floor tenant improvements, repaired our absorption chillers, replaced cooling towers and compressors, with professionalism fitting a Class A outfit. The great pricing, depth of knowledge, and consistent customer services makes me wish I could use them for everything in North America.