Updated: Jul 14, 2026
Location and Projects
Address
8027 WHIRLAWAY ST, Alta Loma, CA, 91701
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Dm Mechanical Inc
Dm Mechanical Inc, 8027 Whirlaway St, Alta Loma, CA (Employees: David Marquez and David Marquez) holds a Warm Air Heating, Ventilating And Air Conditioning license and 1 other license according to the California license board.
Their BuildZoom score of 101 ranks in the top 12% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Dm Mechanical Inc, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Dm Mechanical Inc Contact Information
Phone Number: (626) 476-6097
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Address: 8027 WHIRLAWAY ST, Alta Loma, CA 91701
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Dm Mechanical Inc Alta Loma
Quality
101
88th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Dm Mechanical Inc has a BuildZoom score of 101, which places them above 88% of 336,931 contractors in California.
Activity
|
8 projects
|
2025 |
|
3 projects
|
2024 |
|
4 projects
|
2023 |
Our building permit records indicate that Dm Mechanical Inc has worked on at least
15.0 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
|
11 projects
|
HVAC projects |
|
7 projects
|
Mechanical projects |
Analyzing permits over the last 4 years shows that Dm Mechanical Inc mostly works on
hvac project
and mechanical project
projects.
Pricing
|
2 projects
|
$5k-$20k |
|
3 projects
|
$20k-$50k |
The typical size of their permits is approximately $29,175. 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.
Like-for-like swap out of a 2.5-tpn unit unit is ground mounted no electrical and no alterations will be made. old unit will be donated to hvac training school. wmp req'd smoke and carbon monoxide form due at final
Valuation:
N/A
Permit #:
2025-1636
Status:
triage
Fee:
$245
Permit Type:
N/A
Building Type:
N/A
Commercial alteration or addition - plan check-permit
2025-01-16
Cross street: misty oak description of work: misc mechanical for replacement of (2)grount mounted hvac units for kingdom hall of jehovah's witnesses
Valuation:
N/A
Permit #:
PDS2025-COMALT-000020
Status:
complete
Fee:
$4
Permit Type:
N/A
Building Type:
N/A
Like for like swap out of three 5-ton units. no electrical changes no alterations. units are ground mounted
Valuation:
$45,000
Permit #:
B2501188
Status:
final
Fee:
$600
Permit Type:
N/A
Building Type:
N/A
Like-for-like swapout of one 3-ton mini-split system
Valuation:
$15,700
Permit #:
B2025-0845
Status:
final
Fee:
$802
Permit Type:
Non residence HVAC
Building Type:
N/A
Removed and replace five total units- like for like - 3 (three) units; 5 ton; 60k btu; 14 seer/seer2 11.7 & 2 (two) units 24k btu 14 seer/seer2 11.7; all are package units
Valuation:
N/A
Permit #:
B234570
Status:
issued
Fee:
N/A
Permit Type:
Mechanical - comm...
Building Type:
N/A
Replacing (2) heating pumps (like for like)
Valuation:
N/A
Permit #:
BLD-24-00141
Status:
expired
Fee:
$447
Permit Type:
N/A
Building Type:
N/A
Install (1) new 3-ton heat pump. install new ducting. subject to field verification
Valuation:
$10,000
Permit #:
BS2312438
Status:
issued
Fee:
N/A
Permit Type:
Repair & maintenance
Building Type:
Single-family res...
Change out (2) 5-ton heat pumpsâ 12/18/2023-- addition two air handlers
Valuation:
N/A
Permit #:
B-23-1573
Status:
issued
Fee:
$157
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$43,250
Permit #:
MECH2025-0117
Status:
issued
Fee:
$770
Permit Type:
Appliance replace...
Building Type:
N/A
Swap out(2)(e)package units like for like
Valuation:
$20,000
Permit #:
BLDG23-2090
Status:
final
Fee:
$625
Permit Type:
Simple
Building Type:
N/A
Hvac swap out
Valuation:
N/A
Permit #:
24044-90000-12926
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
B24-11043
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Like-for-like swap out of (four)5-ton package units (two)4-ton package units (one)3-ton package units and (three)2-ton package units. like-for-like swap out for (three) exhaust fans. units and exhaust fans are roof mounted. no alterations will be made
Valuation:
N/A
Permit #:
25041-90000-56647
Status:
issued
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Commercial mechanical electrical plumbing - mechanical permit
2025-12-06
Like-for-like swap out of three units (2)5-tons and (1)3-ton. no alterations will be made no electrical changes. units are ground mounted
Valuation:
$38,350
Permit #:
CMEP2025-00084
Status:
triage
Fee:
$257
Permit Type:
N/A
Building Type:
N/A
Commercial
Changeout (4) 5-ton split system hvacs
Valuation:
$87,500
Permit #:
BP-2025-21640
Status:
ready for issue
Fee:
N/A
Permit Type:
Churches and othe...
Building Type:
N/A
Commercial
Like-for-like swap out of four 5-ton units. no electrical changes will be made no alterations will be made units are gound mounted
Valuation:
$87,500
Permit #:
MP-2025-19942
Status:
application incomplete
Fee:
N/A
Permit Type:
Replace
Building Type:
N/A
Like-for-like swap out of (four)5-ton package units (two)4-ton package units (one)3-ton package units and (three)2-ton package units. like-for-like swap out for (three) exhaust fans. units and exhaust fans are roof mounted. no electrical changes and no alterations will be made
Valuation:
N/A
Permit #:
25044-90000-11287
Status:
issued
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Like-for-like swap out of two 5-ton units and one 3-ton unit. no alterations no electrical changes. units are roof-mounted
Valuation:
N/A
Permit #:
25044-90000-11224
Status:
issued
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
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Dm Mechanical Inc Reviews
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Verified License
BuildZoom confirmed this contractor's license
Dm Mechanical Inc License info
Verified License
| License # | 1104592 |
| Status | Active |
| State | California |
| Type | Warm Air Heating, Ventilating And Air Conditioning |
| Business Type | Corporation |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Dm Mechanical 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 # | 1104592 |
| 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. If this is your business, please update your license status.
Check this license's status for Dm Mechanical Inc at the City of Oceanside, CA.
This is a sample of licensing data; click here to access a complete history.
101
BuildZoom Score
Bonded
| Bonded Agent | This License Filed A Contractor's Bond With |
| Bond Value | $25,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
16
Permits
- Building permit records show that Dm Mechanical Inc has worked on 16 permitted projects.
Dm Mechanical Inc Employees
DM
David Marquez
Rmo / Ceo / Pres
DM
David Marquez
Rmo / Ceo / Pres