COMFORT DEMAND MECHANICAL SERVICES
License
- Status
- CLEAR
- First issued
- May 22, 2013
- Expires
- May 31, 2027
- Entity
- Sole Owner
- Address of record
- 541 PEARLANNA DR, San Dimas, CA 91773
- Phone of record
- (626) 533 5768
Contractor bond
- Surety
- AMERICAN CONTRACTORS INDEMNITY COMPANY
- Bond number
- 100305833
- Amount
- $25,000
- Effective
- January 1, 2023
Workers’ compensation
- Carrier
- PIE CASUALTY INSURANCE COMPNAY
- Policy number
- WC3173168000
- Effective
- November 11, 2025
- Expires
- November 11, 2026
Are they licensed for your job?
A California contractor may only contract for work their classification covers. Pick the job and this reads the license on file against it.
Licensed to perform
A contractor may only contract for work within their classifications. See all 21 licensed warm-air heating, ventilating and air-conditioning contractors in San Dimas.
People on this license
| Name | Title | Since | Through |
|---|---|---|---|
| MARROQUIN CEASAR DONALD | Sole Owner | May 22, 2013 | Current |
| MARROQUIN CEASAR DONALD | Sole Owner | April 9, 2026 | Current |
Verified status badge
Put this on your website or in a bid packet. It reads the state’s record live every time someone loads it, so it is never a screenshot of a good day. Free, and you don’t need to claim this listing to use it.
<a href="https://bookofbuilders.com/license/983870" target="_blank" rel="noopener">
<img src="https://bookofbuilders.com/badge/983870.svg" alt="COMFORT DEMAND MECHANICAL SERVICES — California contractor license #983870 status, verified against CSLB records" width="268" height="76">
</a>The badge shows whatever the CSLB record says — including a suspension or lapsed coverage. There is no paid version and no way to change what it displays. That is what makes it worth showing. The same data as JSON if you’d rather build your own.
Is this your license?
Claim this page to add your photos, description, service area and contact details. The state’s record above stays exactly as it is — claiming adds to a page, it never edits or hides anything the CSLB reports.
Source: California Contractors State License Board public records. Coverage lapse is evaluated against today’s date; all other fields reflect the latest weekly CSLB file. Confirm at the CSLB’s official record before signing a contract.